XSol Diagnostic System

Interactive Test Sequence Navigator

Welcome to the XSol Diagnostic System

This system provides interactive diagnostic tests with proper sequence navigation based on the decoded .seq file logic.

Start Diagnostic Sequence

or choose a specific test below:

GLOWWORM ULTRACOM 2 SXI

GLOBALLY REPLACED

Next: &1, *

NO FAULT FOUND

Next: nff

CASE REMOVAL

Next: &1599, !f2

TYPE OF DIAGNOSTIC PROCEDURE

Next: &87, !f4

POWER UP SELF TEST

ENSURE NO DEMANDS ARE PRESENT

Next: &715, ?10, ?1865

OBSERVATION BURNER IGNITION & ESTABLISH

Next: &335, ?110, ?112, ?114, ?1635

OBSERVATION FAN RUNS - CH DEMAND

ENSURE BOILER IS COOL

Next: &2803, ?88, ?90

COMBUSTION CHECK

CONNECT FGA TO THE COMBUSTION TEST POINT ON THE BOILER
ENSURE CH SYSTEM IS COOL

Next: &nff, f483

CH OPERATION

Next: &2363, ?338, ?2317, ?2335, ?2368

TEST MODES

NOT USED

Next: &nff, f555

INSTALLATION SETTINGS

NOT USED

Next: &nff, f596

INITIAL SETUP

Next: &3, !f716

FAULT CODE F00/F10

NOT USED

Next: &nff, f735

FAULT CODE F23 - F24

NOT USED

Next: &nff, f1060

FAULT CODE F20

NOT USED

Next: &nff, f1199

FAULT CODE F01/F11

NOT USED

Next: &nff, f747

FAULT CODE F84

NOT USED

Next: &nff, f839

FAULT CODE F83

NOT USED

Next: &nff, f782

FAULT CODE F76

NOT USED

Next: &nff, f1378

FAULT CODE F73 - F74

NOT USED

Next: &nff, f931

FAULT CODE F71

NOT USED

Next: &nff, f1192

FAULT CODE F70

NOT USED

Next: &nff, f1422

FAULT CODE F61 TO F67

NOT USED

Next: &nff, f1388

FAULT CODE F49

NOT USED

Next: &nff, f1361

FAULT CODE F32

NOT USED

Next: &nff, f1152

FAULT CODE F26/F77

NOT USED

Next: &nff, f1142

FAULT CODE ERR

NOT USED

Next: &nff, f1582

FAULT CODE F86

NOT USED

Next: &nff, f1172

FAULT CODE F22

NOT USED

Next: &nff, f948

FACTORY RESET

NOT USED

Next: &nff, f1160

FAULT CODE HISTORY

NOT USED

Next: &nff, f1594

OBSERVATION DISPLAY

ON/OFF SWITCH ON (RECESSED POSITION, PUSHED IN)

Next: &7, ?1600, ?1631, ?1674, ?2110

STATUS CODES

NOT USED

Next: &nff, f1671

OPERATION DHW

Next: &334, ?2364, ?2366

HEADER FOR QADAI FLOW THERMISTOR

NOT USED

Next: &nff, f2752

QUICK ACCESS DATA AND INFORMATION

THE TABLE BELOW SHOW

Next: &nff, !f2756

LITE DIAGNOSTIC

DIAGNOSIS RELIES ON

Next: &nff, !f2758

HEADER FOR QADAI RETURN THERMISTOR

NOT USED

Next: &nff, f2760

HEADER FOR QADAI RESISTANCE GAS VALVE

NOT USED

Next: &nff, f2764

HEADER FOR QADAI VOLTAGE GAS VALVE

NOT USED

Next: &nff, f2768

HEADER FOR QADAI PRESSURE SENSOR

NOT USED

Next: &nff, f2772

HEADER FOR QADAI FAN VOLTAGE

NOT USED

Next: &nff, f2776

HEADER FOR QADAI PUMP VOLTAGE

NOT USED

Next: &nff, f2780

HEADER FOR QADAI RESISTANCE PUMP AND HARNESS

NOT USED

Next: &nff, f2784

HEADER FOR QADAI PUMP AND HARNESS ERP

NOT USED

Next: &nff, f2788

HEADER FOR QADAI PUMP VOLTAGE ERP

NOT USED

Next: &nff, f2792

FUSE FURTHER INVESTIGATION

NOT USED

Next: &nff, f2796

OBSERVATION PUMP RUNS

Next: &31, f2804

FAN DOES NOT RUN

SENSOR - TEMPERATURE

Next: End

FAN DOES NOT RUN 2

SENSOR - TEMPERATURE

Next: End

FAN DOES NOT RUN

PCB - MAIN

Next: End

FAULT CODE F23 - F24

SENSOR - TEMPERATURE INSTALLATION

Next: End

FAULT CODE F23 - F24

MOTOR/PUMP

Next: End

FAN DOES NOT RUN

HARNESS DIN - MAIN

Next: End

FAULT CODE F23 - F24

SENSOR - TEMPERATURE

Next: End

FAULT CODE F23 - F24 2

SENSOR - TEMPERATURE

Next: End

FAULT CODE F23 - F24 4

SENSOR - TEMPERATURE

Next: End

FAULT CODE F23 - F24 3

SENSOR - TEMPERATURE

Next: End

FAULT CODE F26

GAS VALVE

Next: End

FAULT CODE F26

PCB - MAIN

Next: End

FACTORY RESET

Z REDIRECTION

Next: End

FAULT CODE F86

WIRE LINK UNDER FLOOR HEATING

Next: End

FAULT CODE F86

UNDER FLOOR SENSOR

Next: End

FAULT CODE F86

PCB - MAIN

Next: End

FAULT CODE F86 2

PCB - MAIN

Next: End

FAULT CODE F71

SENSOR - TEMPERATURE INSTALLATION

Next: End

FAULT CODE F71

SENSOR - TEMPERATURE

Next: End

FAULT CODE F71

PCB - MAIN

Next: End

FAULT CODE F20

SENSOR - TEMPERATURE

Next: End

FAULT CODE F20 2

SENSOR - TEMPERATURE

Next: End

FAULT CODE F20

SENSOR - TEMPERATURE INSTALLATION

Next: End

FAULT CODE F20

VALVE ISOLATION

Next: End

SELF TEST

FROST PROTECTION NORMAL OPERATION

Next: End

FAULT CODE F20 4

MOTOR/PUMP

Next: End

FAULT CODE F32 3

PCB - MAIN

Next: End

FAULT CODE F32

PCB - MAIN

Next: End

FAULT CODE F32

HARNESS DIN - MAIN

Next: End

FAULT CODE F32 2

PCB - MAIN

Next: End

FAULT CODE F49

PCB - MAIN

Next: End

FAULT CODE F49 2

PCB - MAIN

Next: End

FAULT CODE F83

MOTOR/PUMP

Next: End

FAULT CODE F76

CABLE - SENSOR TO HARNESS - HEAT EXCHANGER

Next: End

FAULT CODE F76

PCB - MAIN

Next: End

FAULT CODE F70

PCB - MAIN

Next: End

FAULT CODE F70

MAIN DSN NUMBER

Next: End

SELF TEST

SENSOR - TEMPERATURE

Next: End

FAULT CODE ERR

CABLE - A1

Next: End

BURNER DOES NOT IGNITE

PCB - MAIN & GAS VALVE

Next: End

FAULT CODE HISTORY

Z REDIRECTION

Next: End

NO DISPLAY

FUSE (FUSED SPUR)

Next: End

NO DISPLAY

SYSTEM PRESSURE SENSOR

Next: End

NO DISPLAY

FAN

Next: End

FAULT CODES

Z REDIRECTION

Next: End

STATUS CODES

Z REDIRECTION

Next: End

BOILER FIRES SELF TEST

PCB - MAIN

Next: End

BOILER FIRES SELF TEST 2

PCB - MAIN

Next: End

SELF TEST 3

PCB - MAIN

Next: End

SELF TEST 2

PCB - MAIN

Next: End

LOW PRESSURE

SYSTEM PRESSURE

Next: End

CASE OFF

DIRECTION CHOICE OR CONTINUE

Next: End

DHW COOL RADS COOL

MOTOR/PUMP

Next: End

DHW COOL RADS COOL

AIR BOX

Next: End

NO DISPLAY

FUSE PCB

Next: End

NO DISPLAY

PCB - MAIN

Next: End

BURNER DOES NOT IGNITE 2

HARNESS DIN - MAIN

Next: End

RESET OPTION

Z REDIRECTION

Next: End

BURNER DOES NOT IGNITE 3

HARNESS DIN - MAIN

Next: End

BURNER DOES NOT IGNITE 4

HARNESS DIN - MAIN

Next: End

BURNER DOES NOT ESTABLISH

PCB - MAIN

Next: End

BURNER DOES NOT ESTABLISH

ELECTRODE - IGNITION

Next: End

BURNER DOES NOT ESTABLISH

HARNESS DIN - MAIN

Next: End

DOES NOT EST

SYPHON

Next: End

DHW COOL RADS COOL

GAS INLET PRESSURE

Next: End

FAULT CODE F83 2

SENSOR - TEMPERATURE

Next: End

FAULT CODE F83

SENSOR - TEMPERATURE

Next: End

FAULT CODE F83 4

SENSOR - TEMPERATURE

Next: End

FAULT CODE F83 3

SENSOR - TEMPERATURE

Next: End

FAULT CODE F61-67

GAS VALVE

Next: End

FAULT CODE F61 - 67

PCB - MAIN & GAS VALVE

Next: End

FAULT CODE F61 - 67

MAIN CONNECTIONS

Next: End

FAULT CODE F61 - 67

MAIN DSN NUMBER

Next: End

FAULT CODE F61 - 67

PCB - MAIN

Next: End

FAN DOES NOT RUN

SENSOR - TEMPERATURE INSTALLATION

Next: End

FAN DOES NOT RUN 4

SENSOR - TEMPERATURE

Next: End

FAN DOES NOT RUN 3

SENSOR - TEMPERATURE

Next: End

FAN DOES NOT RUN 1

SENSOR - TEMPERATURE INSTALLATION

Next: End

FAN DOES NOT RUN 4 1

SENSOR - TEMPERATURE

Next: End

FAN DOES NOT RUN 3 1

SENSOR - TEMPERATURE

Next: End

FAN DOES NOT RUN 2

SENSOR - TEMPERATURE INSTALLATION

Next: End

FAN DOES NOT RUN 4 2

SENSOR - TEMPERATURE

Next: End

FAN DOES NOT RUN 3 2

SENSOR - TEMPERATURE

Next: End

FAN DOES NOT RUN 3

SENSOR - TEMPERATURE INSTALLATION

Next: End

FAN DOES NOT RUN 4 3

SENSOR - TEMPERATURE

Next: End

FAN DOES NOT RUN 3 3

SENSOR - TEMPERATURE

Next: End

FAN DOES NOT RUN 4

SENSOR - TEMPERATURE INSTALLATION

Next: End

FAN DOES NOT RUN 4 4

SENSOR - TEMPERATURE

Next: End

FAN DOES NOT RUN 3 4

SENSOR - TEMPERATURE

Next: End

RADS DO NOT HEAT

VALVE ISOLATION

Next: End

RADS DO NOT HEAT

MOTOR/PUMP

Next: End

SYSTEM PRESSURE RISES

EXPANSION VESSEL

Next: End

RADS DO NOT HEAT

BYPASS

Next: End

RADS DO NOT HEAT

Next: End

RAD TEMP LOW

SENSOR - TEMPERATURE

Next: End

RAD TEMP LOW 2

SENSOR - TEMPERATURE

Next: End

BURNER DOES NOT IGNITE

GAS INLET PRESSURE

Next: End

FAULT CODE F23 - F24 2

VALVE ISOLATION

Next: End

FAULT CODE F20

PCB - MAIN - PUMP OVER-RUN

Next: End

BURNER DOES NOT IGNITE 2

GAS VALVE

Next: End

BURNER DOES NOT IGNITE 2

ELECTRODE - IGNITION

Next: End

BURNER DOES NOT IGNITE

FLUE

Next: End

BURNER DOES NOT IGNITE

BURNER

Next: End

BURNER DOES NOT IGNITE

HEAT EXCHANGER

Next: End

SELF TEST 2

SENSOR - TEMPERATURE

Next: End

FAULT CODE F20 4

SENSOR - TEMPERATURE

Next: End

FAULT CODE F20 3

SENSOR - TEMPERATURE

Next: End

DHW COOL RADS COOL

SENSOR - TEMPERATURE INSTALLATION

Next: End

DHW COOL RADS COOL

SENSOR - TEMPERATURE

Next: End

DHW COOL RADS COOL 2

SENSOR - TEMPERATURE

Next: End

BURNER DOES NOT IGNITE RADS ONLY GET WARM

FLUE

Next: End

BURNER DOES NOT IGNITE RADS ONLY GET WARM

BURNER

Next: End

BURNER DOES NOT IGNITE RADS ONLY GET WARM

HEAT EXCHANGER

Next: End

DHW COOL RADS COOL UNABLE TO GAS RATE

MAIN DSN NUMBER

Next: End

CH RAD TEMP LOW UNABLE TO GAS RATE

ADJUSTMENT PARAMETER SETTING

Next: End

BURNER DOES NOT IGNITE RADS ONLY GET WARM UNABLE TO GAS RATE

FLUE

Next: End

BURNER DOES NOT IGNITE RADS ONLY GET WARM UNABLE TO GAS RATE

BURNER

Next: End

BURNER DOES NOT IGNITE RADS ONLY GET WARM UNABLE TO GAS RATE

HEAT EXCHANGER

Next: End

DHW COOL RADS COOL

MAIN DSN NUMBER

Next: End

CH RAD TEMP LOW

ADJUSTMENT PARAMETER SETTING

Next: End

F23 - F24

Next: End

F23 - F24

BYPASS

Next: End

BURNER DOES NOT IGNITE

SYPHON

Next: End

F20

Next: End

F20

BYPASS

Next: End

CONTINUES TO FIRE BUT RADS COOL

Next: End

CONTINUES TO FIRE BUT RADS COOL

BYPASS

Next: End

F83

Next: End

F83

BYPASS

Next: End

F84 - RUNNING SLOW

MOTOR/PUMP

Next: End

F70 HAD TO SAVE INCORRECT DS NUMBER FIRST

MAIN DSN NUMBER

Next: End

FAULT CODE F32 2

HARNESS DIN - MAIN

Next: End

FAULT CODE F32 2

FAN

Next: End

FAULT CODE F32 3

HARNESS DIN - MAIN

Next: End

FAULT CODE F32 3

FAN

Next: End

QADAI FLOW

SENSOR - TEMPERATURE

Next: End

BLANK FOR QADAI

Z REDIRECTION

Next: End

BLANK FOR LITE DIAGNOSTIC

Z REDIRECTION

Next: End

QADAI RETURN

SENSOR - TEMPERATURE

Next: End

QADAI

GAS VALVE

Next: End

QADAI VOLTAGE TO GAS VALVE

PCB - MAIN

Next: End

FAN QADAI

PCB - MAIN

Next: End

QADAI

PCB - MAIN

Next: End

QADAI

MOTOR/PUMP

Next: End

QADAI RESISTANCE

MOTOR/PUMP ERP

Next: End

NO VOLTAGE TO ERP PUMP

PCB - MAIN

Next: End

FUSE FURTHER INVESTIGATION

MOTOR/PUMP

Next: End

ERP FUSE FURTHER INVESTIGATION

MOTOR/PUMP ERP

Next: End

PUMP DOES NOT RUN

MOTOR/PUMP

Next: End

BURNER NOISY/ BAFFLES OUT

SYPHON

Next: End

PUMP DOES NOT RUN

PCB - MAIN

Next: End

ERP PUMP NOT RUNNING

PUMP CABLE (ERP)

Next: End

PUMP NOT RUNNING ERP

PCB - MAIN

Next: End

PUMP DOES NOT RUN 5

MOTOR/PUMP

Next: End

PUMP DOES NOT RUN 1

PCB - MAIN

Next: End

ERP FAULT CODE F20

PUMP CABLE (ERP)

Next: End

PUMP NOT RUNNING ERP F20

PCB - MAIN

Next: End

BURNER NOISY/ BAFFLES OUT

GAS INLET PRESSURE

Next: End

PUMP DOES NOT RUN 8

MOTOR/PUMP

Next: End

PUMP DOES NOT RUN 2

PCB - MAIN

Next: End

ERP FAULT CODE F23 F24

PUMP CABLE (ERP)

Next: End

PUMP NOT RUNNING ERP F23 F24

PCB - MAIN

Next: End

PUMP DOES NOT RUN 4

MOTOR/PUMP

Next: End

PUMP DOES NOT RUN 3

PCB - MAIN

Next: End

ERP FAULT CODE F83

PUMP CABLE (ERP)

Next: End

PUMP NOT RUNNING ERP F83

PCB - MAIN

Next: End

PUMP DOES NOT RUN 7

MOTOR/PUMP

Next: End

PUMP DOES NOT RUN 4

PCB - MAIN

Next: End

ERP FAULT CODE F84

PUMP CABLE (ERP)

Next: End

PUMP NOT RUNNING ERP F84

PCB - MAIN

Next: End

QADAI

SYSTEM PRESSURE SENSOR

Next: End

BURNER NOISY/ BAFFLES OUT

AIR BOX

Next: End

BURNER NOISY/ BAFFLES OUT

FLUE

Next: End

BURNER NOISY/ BAFFLES OUT

BURNER

Next: End

BURNER NOISY/ BAFFLES OUT

HEAT EXCHANGER

Next: End

BURNER DOES NOT IGNITE

AIR BOX

Next: End

TYPE DIAG PROCEDURE

DIRECTION CHOICE OR CONTINUE

Next: End

COMBUSTION CHECK

GAS INLET PRESSURE

Next: End

AIR/GAS RATIO INCORRECT

FLUE

Next: End

AIR/GAS RATIO INCORRECT

COMBUSTION SEALS

Next: End

AIR/GAS RATIO INCORRECT

AIR BOX

Next: End

AIR/GAS RATIO INCORRECT

SYPHON

Next: End

AIR/GAS RATIO INCORRECT

BURNER

Next: End

AIR/GAS RATIO INCORRECT

HEAT EXCHANGER

Next: End

TEST MODE

DIRECTION CHOICE OR CONTINUE

Next: End

INSTALLATION SETTINGS

DIRECTION CHOICE OR CONTINUE

Next: End

INITIAL SET UP

DIRECTION CHOICE OR CONTINUE

Next: End

FAULT CODE F00/F10

PCB - MAIN

Next: End

FAULT CODE F00/F10

SENSOR - TEMPERATURE

Next: End

FAULT CODE F01/F11

SENSOR - TEMPERATURE

Next: End

FAULT CODE F01/F11

PCB - MAIN

Next: End

FAULT CODE F83

SENSOR - TEMPERATURE INSTALLATION

Next: End

FAULT CODE F84

SENSOR - TEMPERATURE INSTALLATION

Next: End

FAULT CODE F84

SENSOR - TEMPERATURE

Next: End

FAULT CODE F84 2

SENSOR - TEMPERATURE

Next: End

FAULT CODE F84

PCB - MAIN

Next: End

FAULT CODE F84 2

PCB - MAIN

Next: End

FAULT CODE F73 - F74

PCB - MAIN

Next: End

FAULT CODE F73 - F74

HARNESS DIN - MAIN

Next: End

FAULT CODE F73 - F74 2

PCB - MAIN

Next: End

FAULT CODE F22

PCB - MAIN

Next: End

FAULT CODE F22 2

PCB - MAIN

Next: End

FAN DOES NOT RUN 2

PCB - MAIN

Next: End

BOILER RESET

FAULT CODE F22

Next: End

FAN DOES NOT RUN

FAN

Next: End

FAULT CODE F23 - F24 2

PCB - MAIN

Next: End

FAULT CODE F26

HARNESS DIN - MAIN

Next: End

FAULT CODE F26

FAULT CODE RESET

Next: End

FACTORY RESET

DIRECTION CHOICE OR CONTINUE

Next: End

FAULT CODE F86

FAULT CODE RESET

Next: End

FAULT CODE F86 2

FAULT CODE RESET

Next: End

FAULT CODE F71

FAULT CODE RESET

Next: End

FAULT CODE F20

PCB - MAIN

Next: End

FAULT CODE F32

FAN

Next: End

FAULT CODE F32

FAULT CODE RESET

Next: End

FAULT CODE RESET - F49

FAULT CODE RESET - F49

Next: End

FAULT CODE F49

EBUS CONTROLS

Next: End

FAULT CODE F76

FAULT CODE RESET

Next: End

HEAT EXCHANGER - THERMAL FUSE

HEAT EXCHANGER - THERMAL FUSE

Next: End

FAULT CODE F70

FAULT CODE RESET

Next: End

FAULT CODE F70

FACTORY RESET

Next: End

FAULT CODE F70

DIRECTION CHOICE OR CONTINUE

Next: End

FAULT CODE ERR

FAULT CODE RESET

Next: End

FAULT CODE ERR

FACTORY RESET

Next: End

FAULT CODE ERR

PCB - INTERFACE

Next: End

FAULT CODE HISTORY

DIRECTION CHOICE OR CONTINUE

Next: End

NO DISPLAY

Next: End

FUSE FURTHER INVESTIGATION

Z REDIRECTION

Next: End

FAULT CODES

DIRECTION CHOICE OR CONTINUE

Next: End

BURNER DOES NOT IGNITE

PCB - MAIN - HARNESS DIN - MAIN

Next: End

STATUS CODES

DIRECTION CHOICE OR CONTINUE

Next: End

BOILER FIRES SELF TEST

Next: End

BOILER FIRES SELF TEST 2

INTERNAL PROGRAMMER

Next: End

BOILER FIRES SELF TEST 2

Next: End

SELF TEST

EBUS CONTROLS

Next: End

SELF TEST 2

EBUS CONTROLS

Next: End

LOW SYSTEM PRESSURE

Z REDIRECTION

Next: End

NO DISPLAY

DIRECTION CHOICE OR CONTINUE

Next: End

NO DISPLAY 2

PCB - INTERFACE

Next: End

BURNER DOES NOT IGNITE 2

FAN

Next: End

RESET OPTIONS

DIRECTION CHOICE OR CONTINUE

Next: End

BURNER DOES NOT IGNITE

SPARK GENERATOR

Next: End

BURNER DOES NOT IGNITE 2

PCB - MAIN

Next: End

BURNER DOES NOT ESTABLISH 2

PCB - MAIN

Next: End

BURNER DOES NOT ESTABLISH

SPARK GENERATOR

Next: End

FAULT CODE F83

PCB - MAIN

Next: End

FAULT CODE F61 - 67

FAULT CODE RESET

Next: End

FAULT CODE F61 - 67

PCB - MAIN - HARNESS DIN - MAIN

Next: End

FAULT CODE F61 TO F67

DIRECTION CHOICE OR CONTINUE

Next: End

FAULT CODE F61 - 67

FACTORY RESET

Next: End

CH DOES NOT RESPOND

EBUS CONTROLS

Next: End

CH DOES NOT RESPOND 4

Next: End

CH DOES NOT RESPOND 6

INTERNAL PROGRAMMER

Next: End

CH DOES NOT RESPOND 3

Next: End

CH DOES NOT RESPOND 8

INTERNAL PROGRAMMER

Next: End

DHW NOT RECOGNISED 2

PCB - MAIN

Next: End

DHW NOT RECOGNISED 2 1

PCB - MAIN

Next: End

DHW NOT RECOGNISED 2 2

PCB - MAIN

Next: End

DHW NOT RECOGNISED 2 3

PCB - MAIN

Next: End

DHW NOT RECOGNISED 2 4

PCB - MAIN

Next: End

SYSTEM PRESSURE RISES

PIPE EXPANSION VESSEL

Next: End

RADS DO NOT HEAT

Next: End

NO SUPPLY

Next: End

OPERATION DHW

Next: End

RAD TEMP LOW

PCB - MAIN

Next: End

BURNER DOES NOT IGNITE

ELECTRODE - IGNITION

Next: End

BURNER DOES NOT IGNITE

PCB - MAIN

Next: End

FAULT CODE F23 - F24

FAULT CODE RESET

Next: End

FAULT CODE F20

FAULT CODE RESET

Next: End

FAULT CODE F20 2

PCB - MAIN

Next: End

FAULT CODE F20 3

PCB - MAIN

Next: End

LOW SYSTEM PRESSURE 2

SYSTEM PRESSURE SENSOR

Next: End

LOW SYSTEM PRESSURE

SYSTEM PRESSURE SENSOR

Next: End

LOW SYSTEM PRESSURE

BLOCK - OUTLET ASSEMBLY

Next: End

FAULT CODE F20

SYSTEM PRESSURE SENSOR

Next: End

FAULT CODE F20 2

SYSTEM PRESSURE SENSOR

Next: End

FAULT CODE F20

BLOCK - OUTLET ASSEMBLY

Next: End

DHW COOL RADS COOL 2

SYSTEM PRESSURE SENSOR

Next: End

DHW COOL RADS COOL

SYSTEM PRESSURE SENSOR

Next: End

DHW COOL RADS COOL

BLOCK - OUTLET ASSEMBLY

Next: End

BURNER DOES NOT IGNITE

HARNESS DIN - MAIN

Next: End

DHW RADS DO NOT HEAT

SYSTEM PRESSURE SENSOR

Next: End

DHW RADS DO NOT HEAT 2

SYSTEM PRESSURE SENSOR

Next: End

DHW RADS DO NOT HEAT

BLOCK - OUTLET ASSEMBLY

Next: End

FAULT CODE F22

SYSTEM PRESSURE SENSOR

Next: End

FAULT CODE F22 2

SYSTEM PRESSURE SENSOR

Next: End

FAULT CODE F22

BLOCK - OUTLET ASSEMBLY

Next: End

FAULT CODE F23 - F24

SYSTEM PRESSURE SENSOR

Next: End

FAULT CODE F23 - F24 2

SYSTEM PRESSURE SENSOR

Next: End

FAULT CODE F23 - F24

BLOCK - OUTLET ASSEMBLY

Next: End

FAULT CODE F73 - F74 2

SYSTEM PRESSURE SENSOR

Next: End

FAULT CODE F73 - F74 3

SYSTEM PRESSURE SENSOR

Next: End

FAULT CODE F73 - F74

BLOCK - OUTLET ASSEMBLY

Next: End

FAULT CODE F83

SYSTEM PRESSURE SENSOR

Next: End

FAULT CODE F83 2

SYSTEM PRESSURE SENSOR

Next: End

FAULT CODE F83

BLOCK - OUTLET ASSEMBLY

Next: End

BURNER DOES NOT IGNITE

GAS VALVE

Next: End

DHW COOL RADS COOL - GAS RATE LOW

PCB - MAIN

Next: End

DHW COOL RADS COOL 3 UNABLE TO GAS RATE

PCB - MAIN

Next: End

DHW COOL RADS COOL UNABLE TO GAS RATE

DIRECTION CHOICE OR CONTINUE

Next: End

RAD TEMP LOW UNABLE TO GAS RATE

Z REDIRECTION

Next: End

DHW COOL RADS COOL - GAS RATE LOW UNABLE TO GAS RATE

PCB - MAIN

Next: End

DHW COOL RADS COOL

PCB - MAIN

Next: End

DHW COOL RADS COOL 3

PCB - MAIN

Next: End

DHW COOL RADS COOL

DIRECTION CHOICE OR CONTINUE

Next: End

RAD TEMP LOW

Z REDIRECTION

Next: End

FAULT CODE F23 - F24

SYSTEM RESTRICTION OR BLOCKAGE

Next: End

F20

SYSTEM RESTRICTION OR BLOCKAGE

Next: End

CONTINUES TO FIRE BUT RADS COOL

SYSTEM RESTRICTION OR BLOCKAGE

Next: End

F83

SYSTEM RESTRICTION OR BLOCKAGE

Next: End

FAULT CODE F32 4

PCB - MAIN

Next: End

FAULT CODE F32 5

PCB - MAIN

Next: End

FLOW THERMISTOR

RESULT AS EXPECTED

Next: End

RETURN THERMISTOR

RESULT AS EXPECTED

Next: End

GAS VALVE

RESULT AS EXPECTED

Next: End

GAS VALVE VOLTAGE

RESULT AS EXPECTED

Next: End

SENSOR FLOW

RESULT AS EXPECTED

Next: End

FAN

RESULT AS EXPECTED

Next: End

PUMP VOLTAGE

RESULT AS EXPECTED

Next: End

MOTOR/PUMP

RESULT AS EXPECTED

Next: End

ERP PUMP

RESULT AS EXPECTED

Next: End

PUMP VOLTAGE ERP

RESULT AS EXPECTED

Next: End

NO DISPLAY

FUSE FURTHER INVESTIGATION

Next: End

NO DISPLAY ERP

FUSE FURTHER INVESTIGATION

Next: End

PUMP DOES NOT RUN 2

MOTOR/PUMP

Next: End

ERP 1

MOTOR/PUMP ERP

Next: End

PUMP DOES NOT RUN 1

MOTOR/PUMP

Next: End

ERP FAULT CODE F20

MOTOR/PUMP ERP

Next: End

PUMP DOES NOT RUN 3

MOTOR/PUMP

Next: End

ERP FAULT CODE F23 F24

MOTOR/PUMP ERP

Next: End

PUMP DOES NOT RUN 9

MOTOR/PUMP

Next: End

ERP FAULT CODE F83

MOTOR/PUMP ERP

Next: End

PUMP DOES NOT RUN 6

MOTOR/PUMP

Next: End

ERP FAULT CODE F84

MOTOR/PUMP ERP

Next: End

BURNER NOISY/ BAFFLES OUT

GAS VALVE

Next: End

SELF TEST

PCB - MAIN

Next: End

GAS RATIO ADJUSTMENT

GAS VALVE ADJUSTMENT

Next: End

AIR/GAS RATIO INCORRECT

GAS VALVE

Next: End

TEST MODE

Z REDIRECTION

Next: End

INSTALLATION SETTINGS

Z REDIRECTION

Next: End

FAULT CODE F00/F10

FAULT CODE RESET

Next: End

FAULT CODE F00/F10

HARNESS DIN - MAIN

Next: End

FAULT CODE F01/F11

HARNESS DIN - MAIN

Next: End

FAULT CODE F01/F11

FAULT CODE RESET

Next: End

FAULT CODE F83

FAULT CODE RESET

Next: End

FAULT CODE F84

FAULT CODE RESET

Next: End

FAULT CODE F73 - F74

SYSTEM PRESSURE SENSOR

Next: End

FAULT CODE F73 - F74

FAULT CODE RESET

Next: End

CH SYMBOL FLASHING AND CH FLOW TEMPERATURE BELOW 12 °C (FIG 2)

CHARACTERISTIC TEST FROM POWER UP SELF TEST

Next: p11

BURNER DOES NOT IGNITE

CHARACTERISTIC TEST FROM OBSERVATION BURNER IGNITION & ESTABLISH

Next: p234

BURNER IGNITES SMOOTHLY BUT DOES NOT ESTABLISH - SPARKING CONTINUES

CHARACTERISTIC TEST FROM OBSERVATION BURNER IGNITION & ESTABLISH

Next: p2126

BURNER IGNITES BUT IS NOISY AND/OR BAFFLES OUT

CHARACTERISTIC TEST FROM OBSERVATION BURNER IGNITION & ESTABLISH

Next: p279

FAN DOES NOT RUN

CHARACTERISTIC TEST FROM ? OBSERVATION FAN RUNS - FAULT CODE F32

Next: p1344

FAN RUNS AND/OR STOPS AND RESTARTS - FAULT CODE F32 OCCURS

CHARACTERISTIC TEST FROM ? OBSERVATION FAN RUNS - FAULT CODE F32

Next: p2738

DISPLAY NOT ILLUMINATED (BLANK)

CHARACTERISTIC TEST FROM OBSERVATION DISPLAY

Next: p1601

FAULT CODE DISPLAYED

CHARACTERISTIC TEST FROM OBSERVATION DISPLAY

Next: p1632

FAULT CODE F32 DISPLAYED

CHARACTERISTIC TEST FROM OBSERVATION BURNER IGNITION & ESTABLISH

Next: p2746

LOW SYSTEM PRESSURE DISPLAYED

CHARACTERISTIC TEST FROM OBSERVATION DISPLAY

Next: p1941

CH SYMBOL FLASHING AND CH FLOW TEMP ABOVE 12°C (FIG 3)

CHARACTERISTIC TEST FROM POWER UP SELF TEST

Next: p1867

RESET DISPLAYED

CHARACTERISTIC TEST FROM OBSERVATION DISPLAY

Next: p2111

24 VOLT EXTERNAL CONTROLS FITTED

CHARACTERISTIC TEST FROM OBSERVATION EXTERNAL CONTROLS FITTED

Next: p2258

EBUS CONTROLS FITTED

CHARACTERISTIC TEST FROM OBSERVATION EXTERNAL CONTROLS FITTED

Next: p2260

BOILER REACHES TEMPERATURE RADIATORS DO NOT HEAT

CHARACTERISTIC TEST FROM CH OPERATION

Next: p2318

EXCESSIVE SYSTEM PRESSURE AS CH TEMPERATURE RISES

CHARACTERISTIC TEST FROM CH OPERATION

Next: p2336

BOILER DOES NOT RESPOND TO DHW DEMAND

CHARACTERISTIC TEST FROM OPERATION DHW

Next: !p2365

BOILER RESPONDS TO DHW DEMAND BUT OPERATION UNSATISFACTORY

CHARACTERISTIC TEST FROM OPERATION DHW

Next: !p2367

BOILER SHUTS DOWN BEFORE REACHING TEMPERATURE

CHARACTERISTIC TEST FROM CH OPERATION

Next: p2370

BOILER GOES TO FAULT CODE F20 - TEMPERATURE BELOW 97°C

CHARACTERISTIC TEST FROM RUN BOILER TO MAX TEMP - FAULT CODE F20

Next: !p2491

BOILER FLOW TEMPERATURE EXCEEDS 85°C AND BOILER STILL FIRED

CHARACTERISTIC TEST FROM RUN BOILER TO MAX TEMP - FAULT CODE F20

Next: !p2493

SENSOR RESTRICTED AND/OR BLOCKED

CHARACTERISTIC TEST FROM INSPECTION SENSOR SYSTEM PRESSURE AND MANIFOLD

Next: !p2505

MANIFOLD RESTRICTED AND/OR BLOCKED

CHARACTERISTIC TEST FROM INSPECTION SENSOR SYSTEM PRESSURE AND MANIFOLD

Next: !p2507

SENSOR RESTRICTED AND/OR BLOCKED

CHARACTERISTIC TEST FROM INSPECTION SENSOR SYSTEM PRESSURE AND MANIFOLD

Next: !p2511

MANIFOLD RESTRICTED AND/OR BLOCKED

CHARACTERISTIC TEST FROM INSPECTION SENSOR SYSTEM PRESSURE AND MANIFOLD

Next: !p2513

SENSOR RESTRICTED AND/OR BLOCKED

CHARACTERISTIC TEST FROM INSPECTION SENSOR SYSTEM PRESSURE AND MANIFOLD

Next: !p2517

MANIFOLD RESTRICTED AND/OR BLOCKED

CHARACTERISTIC TEST FROM INSPECTION SENSOR SYSTEM PRESSURE AND MANIFOLD

Next: !p2519

SENSOR RESTRICTED AND/OR BLOCKED

CHARACTERISTIC TEST FROM INSPECTION SENSOR SYSTEM PRESSURE AND MANIFOLD

Next: !p2523

MANIFOLD RESTRICTED AND/OR BLOCKED

CHARACTERISTIC TEST FROM INSPECTION SENSOR SYSTEM PRESSURE AND MANIFOLD

Next: !p2525

SENSOR RESTRICTED AND/OR BLOCKED

CHARACTERISTIC TEST FROM INSPECTION SENSOR SYSTEM PRESSURE AND MANIFOLD

Next: !p2529

MANIFOLD RESTRICTED AND/OR BLOCKED

CHARACTERISTIC TEST FROM INSPECTION SENSOR SYSTEM PRESSURE AND MANIFOLD

Next: !p2531

SENSOR RESTRICTED AND/OR BLOCKED

CHARACTERISTIC TEST FROM INSPECTION SENSOR SYSTEM PRESSURE AND MANIFOLD

Next: !p2535

MANIFOLD RESTRICTED AND/OR BLOCKED

CHARACTERISTIC TEST FROM INSPECTION SENSOR SYSTEM PRESSURE AND MANIFOLD

Next: !p2537

SENSOR RESTRICTED AND/OR BLOCKED

CHARACTERISTIC TEST FROM INSPECTION SENSOR SYSTEM PRESSURE AND MANIFOLD

Next: !p2541

MANIFOLD RESTRICTED AND/OR BLOCKED

CHARACTERISTIC TEST FROM INSPECTION SENSOR SYSTEM PRESSURE AND MANIFOLD

Next: !p2543

SENSOR RESTRICTED AND/OR BLOCKED

CHARACTERISTIC TEST FROM INSPECTION SENSOR SYSTEM PRESSURE AND MANIFOLD

Next: !p2547

MANIFOLD RESTRICTED AND/OR BLOCKED

CHARACTERISTIC TEST FROM INSPECTION SENSOR SYSTEM PRESSURE AND MANIFOLD

Next: !p2549

UNABLE TO GAS RATE (EG LPG INSTALLATION)

CHARACTERISTIC TEST FROM GAS RATE

Next: p2660

GAS RATE INCORRECT

CHARACTERISTIC TEST FROM GAS RATE

Next: p2662

BOILER CONTINUES TO FIRE BUT RADIATORS ONLY GET WARM

CHARACTERISTIC TEST FROM CH OPERATION

Next: p1999

FAN DOES NOT RUN - CH DEMAND RECOGNISED (RADIATOR SYMBOL FLASHING)

CHARACTERISTIC TEST FROM OBSERVATION FAN RUNS - CH DEMAND

Next: p99

FAN DOES NOT RUN - CH DEMAND NOT RECOGNISED (RADIATOR SYMBOL NOT FLASHING)

CHARACTERISTIC TEST FROM OBSERVATION FAN RUNS - CH DEMAND

Next: p2255

10/11/2023 14:03:20 2308_2_50_1 29/11/2023 12:48:44

16/11/2023 10:51:21

Next: End

RESISTANCE THERMISTOR FLOW

REMOVE LEFT HAND SIDE PANEL
REMOVE RED LEADS TO FLOW THERMISTOR

Next: p102, !f103

RESET APPLIANCE - FAULT CODE F20 TO F24

ENSURE NO DEMANDS ARE PRESENT
ENSURE BOILER IS COOL

Next: p1061, f1089

RESISTANCE THERMISTOR FLOW

REMOVE LEFT HAND SIDE PANEL
REMOVE RED LEADS TO FLOW THERMISTOR

Next: p1090, !f1091

RESISTANCE GAS VALVE AND HARNESS

{GAINPCBACS}
REMOVE CONNECTOR X20 FROM THE PCB

Next: p1147, f1144

RESISTANCE GAS VALVE

REMOVE LEFT - HAND SIDE BOILER CASE
REMOVE ELECTRICAL CONNECTOR TO THE GAS VALVE

Next: !p1148, !f1149

RESET APPLIANCE - FAULT CODE

ENSURE NO DEMANDS ARE PRESENT

Next: p1153, !f1339

FACTORY RESET PROCEDURE

FACTORY RESET PRO

Next: !p1161, !f1162

OBSERVATION UNDERFLOOR HEATING

Next: p1175, f1180

RESISTANCE SENSOR UNDER FLOOR

{GAINPCBACS}
REMOVE UNDER FLOOR HEATING SENSOR CONNECTOR FROM X18 ON THE PCB

Next: p1185, !f1186

OBSERVATION THERMISTORS CORRECTLY FITTED

Next: p1193, !f1194

RESET APPLIANCE - FAULT CODE F20 TO F24

ENSURE NO DEMANDS ARE PRESENT
ENSURE BOILER IS COOL

Next: p1206, f1201

RESISTANCE THERMISTOR FLOW

REMOVE LEFT HAND SIDE PANEL
REMOVE RED LEADS TO FLOW THERMISTOR

Next: p1202, !f1203

RESET APPLIANCE - FAULT CODE

ENSURE NO DEMANDS ARE PRESENT

Next: !p1362, f1363

OBSERVATION ARE ANY EBUS CONTROLS FITTED

{GAINPCBACS}

Next: p1364, !f1365

RESISTANCE THERMAL FUSE AND HARNESS

REMOVE CONNECTOR X20 FROM THE PCB

Next: p1384, f1380

RESISTANCE HARNESS THERMAL FUSE

REMOVE CONNECTOR X20 FROM THE PCB
REMOVE CONNECTOR TO THERMAL FUSE

Next: !p1387, !f1382

RESET APPLIANCE - FAULT CODE F61 - F67

ENSURE NO DEMANDS ARE PRESENT

Next: p2231, f2235

RESET APPLIANCE - FAULT CODE

ENSURE NO DEMANDS ARE PRESENT

Next: !p1423, f1424

OBSERVATION DSN NUMBER

PARAMETER DSN NUM

Next: p2729, f1426

DSN NUMBER ALTERED CORRECTLY

THE DSN PARAMETER IS

Next: !p1429, !f1430

RESET APPLIANCE - FAULT CODE

ENSURE NO DEMANDS ARE PRESENT

Next: !p1583, f1584

FACTORY RESET - PCB MAIN

FACTORY RESET PRO

Next: !p1585, f1586

RESISTANCE HARNESS INTERFACE

REMOVE CONNECTOR X51 FROM THE PCB
REMOVE PCB TO INTERFACE PCB CONNECTOR

Next: !p1587, !f1588

FAULT CODE HISTORY ACCESS

Next: !p1595, !f1596

RESISTANCE FUSE (FUSED SPUR)

REMOVE FUSE FROM FUSED SPUR

Next: !p1604, f1605

FUSE FURTHER INVESTIGATION (FUSED SPUR)

THE INFORMATION PROV

Next: !p1606, !f1607

ACTIVATE STATUS CODES

STATUS CODES OF T

Next: !p1672, !f1673

OBSERVATION EXTERNAL CONTROLS FITTED - SELF TEST

{GAINPCBACS}

Next: p1881, f1885

DISCONNECT INTERNAL PROGRAMMER (SELF TEST)

GAIN ACCESS TO UPPER

Next: !p1879, !f1880

DISCONNECT EBUS CONTROLS - SELF TEST

REMOVE EBUS WIRING C

Next: !p1886, !f1887

DISCONNECT EBUS CONTROLS - SELF TEST

REMOVE EBUS WIRING C

Next: !p1888, !f1889

FUSE FURTHER INVESTIGATION (PCB FUSE)

THE INFORMATION PROV

Next: !p2092, !f2093

VOLTAGE FAN HALL SENSOR AT PCB

{GAINPCBACS}

Next: p2122, f2100

RESISTANCE HARNESS FAN

REMOVE ELECTRICAL CONNECTORS X20 FROM THE PCB AND TO THE FAN ASSEMBLY

Next: !p2101, !f2102

RESISTANCE HARNESS SPARK GENERATOR

REMOVE ELECTRICAL CONNECTOR TO SPARK GENERATOR AND CONNECTOR X21 FROM THE PCB

Next: !p2115, !f2116

INSPECTION ELECTRODE IGNITION

REMOVE IGNITION ELECTRODE

Next: p2132, !f2133

RESISTANCE THERMISTOR FLOW

REMOVE LEFT HAND SIDE PANEL
REMOVE RED LEADS TO FLOW THERMISTOR

Next: p2198, !f2199

RESISTANCE GAS VALVE AND HARNESS

{GAINPCBACS}
REMOVE CONNECTOR X20 FROM THE PCB

Next: p2236, f2237

RESISTANCE GAS VALVE

REMOVE LEFT - HAND SIDE BOILER CASE
REMOVE ELECTRICAL CONNECTOR TO THE GAS VALVE

Next: !p2238, !f2239

DSN NUMBER ALTERED CORRECTLY

THE DSN PARAMETER IS

Next: !p2244, !f2245

OBSERVATION INTERNAL PROGRAMMER FITTED

Next: p2265, f2289

OBSERVATION INTERNAL PROGRAMMER FITTED

Next: p2271, f2303

OBSERVATION THERMISTORS CORRECTLY FITTED

Next: p2276, !f2277

OBSERVATION THERMISTORS CORRECTLY FITTED

Next: p2290, !f2291

OBSERVATION THERMISTORS CORRECTLY FITTED

Next: p2297, !f2298

OBSERVATION THERMISTORS CORRECTLY FITTED

Next: p2304, !f2305

OBSERVATION THERMISTORS CORRECTLY FITTED

Next: p2311, !f2312

VOLTAGE SPARK GENERATOR AT PCB

{GAINPCBACS}
REMOVE ELECTRICAL CONNECTOR TO SPARK GENERATOR AND MAKE SAFE

Next: p238, f2098

RESISTANCE GAS VALVE AND HARNESS

{GAINPCBACS}
REMOVE CONNECTOR X20 FROM THE PCB

Next: !p246, f247

RESISTANCE GAS VALVE

REMOVE LEFT - HAND SIDE BOILER CASE
REMOVE ELECTRICAL CONNECTOR TO THE GAS VALVE

Next: !p1669, !f1589

INSPECTION SENSOR SYSTEM PRESSURE AND MANIFOLD

DRAIN PRIMARY SYSTEM WATER FROM BOILER
REMOVE SYSTEM PRESSURE SENSOR FROM THE LEFT HAND MANIFOLD

Next: !p2503, ?2504, ?2506

INSPECTION SENSOR SYSTEM PRESSURE AND MANIFOLD

DRAIN PRIMARY SYSTEM WATER FROM BOILER
REMOVE SYSTEM PRESSURE SENSOR FROM THE LEFT HAND MANIFOLD

Next: !p2509, ?2510, ?2512

RESISTANCE GAS VALVE

REMOVE LEFT - HAND SIDE BOILER CASE
REMOVE ELECTRICAL CONNECTOR TO THE GAS VALVE

Next: !p252, !f253

INSPECTION SENSOR SYSTEM PRESSURE AND MANIFOLD

DRAIN PRIMARY SYSTEM WATER FROM BOILER
REMOVE SYSTEM PRESSURE SENSOR FROM THE LEFT HAND MANIFOLD

Next: !p2515, ?2516, ?2518

INSPECTION SENSOR SYSTEM PRESSURE AND MANIFOLD

DRAIN PRIMARY SYSTEM WATER FROM BOILER
REMOVE SYSTEM PRESSURE SENSOR FROM THE LEFT HAND MANIFOLD

Next: !p2521, ?2522, ?2524

INSPECTION SENSOR SYSTEM PRESSURE AND MANIFOLD

DRAIN PRIMARY SYSTEM WATER FROM BOILER
REMOVE SYSTEM PRESSURE SENSOR FROM THE LEFT HAND MANIFOLD

Next: !p2533, ?2534, ?2536

INSPECTION SENSOR SYSTEM PRESSURE AND MANIFOLD

DRAIN PRIMARY SYSTEM WATER FROM BOILER
REMOVE SYSTEM PRESSURE SENSOR FROM THE LEFT HAND MANIFOLD

Next: !p2539, ?2540, ?2542

INSPECTION SENSOR SYSTEM PRESSURE AND MANIFOLD

DRAIN PRIMARY SYSTEM WATER FROM BOILER
REMOVE SYSTEM PRESSURE SENSOR FROM THE LEFT HAND MANIFOLD

Next: !p2545, ?2546, ?2548

ADJUSTMENT - MAXIMUM HEATING PARAMETER SETTING

Next: p2671, f2672

OBSERVATION DSN NUMBER - OUTPUT

PARAMETER DSN NUM

Next: !p2673, f2674

DSN NUMBER ALTERED CORRECTLY

THE DSN PARAMETER IS

Next: !p2675, !f2676

ADJUSTMENT - MAXIMUM HEATING PARAMETER SETTING

Next: p2687, f2688

OBSERVATION DSN NUMBER - OUTPUT

PARAMETER DSN NUM

Next: !p2689, f2690

DSN NUMBER ALTERED CORRECTLY

THE DSN PARAMETER IS

Next: !p2691, !f2692

INSPECTION EXTERNAL BYPASS

Next: p2696, !f2697

INSPECTION EXTERNAL BYPASS

Next: p2701, !f2702

INSPECTION EXTERNAL BYPASS

Next: p2706, !f2707

INSPECTION EXTERNAL BYPASS

Next: p2711, !f2712

RESISTANCE THERMISTOR FLOW

REMOVE LEFT HAND SIDE PANEL
REMOVE RED LEADS TO FLOW THERMISTOR

Next: !p2753, !f2754

RESISTANCE THERMISTOR RETURN

REMOVE LEFT HAND SIDE PANEL
REMOVE BLUE LEADS TO RETURN THERMISTOR

Next: !p2761, !f2762

RESISTANCE GAS VALVE

REMOVE LEFT - HAND SIDE BOILER CASE
REMOVE ELECTRICAL CONNECTOR TO THE GAS VALVE

Next: !p2765, !f2766

VOLTAGE GAS VALVE AT PCB

{GAINPCBACS}
REMOVE ELECTRICAL CONNECTOR FROM GAS VALVE AND MAKE SAFE

Next: !p2769, !f2770

VOLTAGE SENSOR SYSTEM PRESSURE - RETURN

{GAINPCBACS}

Next: !p2773, !f2859

VOLTAGE FAN 22 VDC AT PCB

REMOVE ELECTRICAL CONNECTOR FROM FAN ASSEMBLY, LEAVE IN A SAFE LOCATION

Next: !p2777, !f2778

VOLTAGE PUMP AT PCB

{GAINPCBACS}

Next: !p2781, !f2782

RESISTANCE PUMP AND HARNESS

{GAINPCBACS}
REMOVE X14 PUMP CONNECTOR FROM THE PCB

Next: !p2785, !f2786

RESISTANCE PUMP AND HARNESS ERP

{GAINPCBACS}
REMOVE X14 PUMP CONNECTOR FROM THE PCB

Next: !p2789, !f2790

VOLTAGE PUMP AT PCB ERP

{GAINPCBACS}

Next: !p2793, !f2794

OBSERVATION TYPE OF PUMP

Next: p2797, f2798

RESISTANCE PUMP AND HARNESS (FUSE FURTHER INVESTIGATION)

{GAINPCBACS}
REMOVE X14 PUMP CONNECTOR FROM THE PCB

Next: !p2799, !f2800

OBSERVATION TYPE OF PUMP

Next: p2805, f2806

RESISTANCE PUMP AND HARNESS

{GAINPCBACS}
REMOVE X14 PUMP CONNECTOR FROM THE PCB

Next: p2807, !f2808

OBSERVATION TYPE OF PUMP

Next: p2816, f2817

RESISTANCE PUMP AND HARNESS

{GAINPCBACS}
REMOVE X14 PUMP CONNECTOR FROM THE PCB

Next: p2818, !f2819

OBSERVATION TYPE OF PUMP

Next: p2827, f2828

RESISTANCE PUMP AND HARNESS

{GAINPCBACS}
REMOVE X14 PUMP CONNECTOR FROM THE PCB

Next: p2829, !f2830

OBSERVATION TYPE OF PUMP

Next: p2838, f2839

RESISTANCE PUMP AND HARNESS

{GAINPCBACS}
REMOVE X14 PUMP CONNECTOR FROM THE PCB

Next: p2840, !f2841

OBSERVATION TYPE OF PUMP

Next: p2849, f2850

RESISTANCE PUMP AND HARNESS

{GAINPCBACS}
REMOVE X14 PUMP CONNECTOR FROM THE PCB

Next: p2851, !f2852

PRESSURE GAS VALVE INLET

ATTACH PRESSURE GAUGE TO GAS VALVE PRESSURE INLET TEST POINT

Next: p504, !f485

INSPECTION BURNER ASSEMBLY

REMOVE COMBUSTION BLOCK FROM BOILER
REMOVE LEFT-HAND SIDE CASE IF REQUIRED

Next: p549, !f550

TEST MODE ACTIVATION

Next: !p556, !f557

INSTALLATION SETTINGS ACTIVATION

Next: !p597, !f598

RESISTANCE THERMISTOR FLOW AND HARNESS

{GAINPCBACS}
REMOVE CONNECTOR X20 FROM THE PCB

Next: p736, f737

RESISTANCE THERMISTOR FLOW

REMOVE LEFT HAND SIDE PANEL
REMOVE RED LEADS TO FLOW THERMISTOR

Next: !p740, !f741

RESISTANCE THERMISTOR RETURN AND HARNESS

{GAINPCBACS}
REMOVE CONNECTOR X20 FROM THE PCB

Next: p748, f749

RESISTANCE THERMISTOR RETURN

REMOVE LEFT HAND SIDE PANEL
REMOVE BLUE LEADS TO RETURN THERMISTOR

Next: !p750, !f751

RESET APPLIANCE - FAULT CODE 83

ENSURE NO DEMANDS ARE PRESENT

Next: p785, f2197

OBSERVATION THERMISTORS CORRECTLY FITTED

Next: p840, !f841

VOLTAGE SENSOR SYSTEM PRESSURE - RETURN

{GAINPCBACS}

Next: p932, f933

VOLTAGE SENSOR SYSTEM PRESSURE - SEND

Next: p934, !f935

ADJUST PRIMARY SYSTEM PRESSURE - FAULT CODE F22

{GAINPCBACS}
LOCATE PRIMARY SYSTEM FILLING LOOP

Next: p949, f950

VOLTAGE SENSOR SYSTEM PRESSURE - SEND

Next: p2526, !f954

VOLTAGE FAN 22 VDC AT PCB

REMOVE ELECTRICAL CONNECTOR FROM FAN ASSEMBLY, LEAVE IN A SAFE LOCATION

Next: p106, !f107

RESISTANCE THERMISTOR RETURN

REMOVE LEFT HAND SIDE PANEL
REMOVE BLUE LEADS TO RETURN THERMISTOR

Next: !p104, !f105

RESISTANCE HARNESS FAN

REMOVE ELECTRICAL CONNECTORS X20 FROM THE PCB AND TO THE FAN ASSEMBLY

Next: !p108, !f109

OBSERVATION SYSTEM PRESSURE

Next: p2450, f2532

OBSERVATION THERMISTORS CORRECTLY FITTED

Next: p1069, !f1070

OBSERVATION PUMP RUNS

Next: p1097, f2826

PUMP LIMPET TEST

Next: p1077, !f1078

TEMPERATURE DIFFERENTIAL FLOW AND RETURN - CH

ATTACH TEMPERATURE C

Next: !p2483, f2695

RESISTANCE THERMISTOR RETURN

REMOVE LEFT HAND SIDE PANEL
REMOVE BLUE LEADS TO RETURN THERMISTOR

Next: !p1092, !f1093

RESISTANCE THERMISTOR FLOW

REMOVE LEFT HAND SIDE PANEL
REMOVE RED LEADS TO FLOW THERMISTOR

Next: p1111, !f1125

TEMPERATURE FLOW - FROST PROTECTION

REMOVE LEFT HAND SID

Next: p12, !f13

RESISTANCE THERMISTOR RETURN

REMOVE LEFT HAND SIDE PANEL
REMOVE BLUE LEADS TO RETURN THERMISTOR

Next: p1071, !f1126

RESET APPLIANCE - FAULT CODE

ENSURE NO DEMANDS ARE PRESENT

Next: !p1150, !f1151

OBSERVATION FAN RUNS - FAULT CODE F32

Next: !p1358, ?1340, ?1342

RESISTANCE LINK UNDER FLOOR HEATING CONNECTOR

{GAINPCBACS}
REMOVE UNDER FLOOR HEATING SENSOR CONNECTOR FROM X18 ON THE PCB

Next: p1183, !f1184

RESET APPLIANCE - FAULT CODE

ENSURE NO DEMANDS ARE PRESENT

Next: !p1189, !f1190

RESET APPLIANCE - FAULT CODE

ENSURE NO DEMANDS ARE PRESENT

Next: !p1191, !f1188

RESISTANCE THERMISTOR FLOW

REMOVE LEFT HAND SIDE PANEL
REMOVE RED LEADS TO FLOW THERMISTOR

Next: p1195, !f1196

RESET APPLIANCE - FAULT CODE

ENSURE NO DEMANDS ARE PRESENT

Next: !p1197, !f1198

RESISTANCE THERMISTOR FLOW

REMOVE LEFT HAND SIDE PANEL
REMOVE RED LEADS TO FLOW THERMISTOR

Next: p24, !f15

RESISTANCE THERMISTOR RETURN

REMOVE LEFT HAND SIDE PANEL
REMOVE BLUE LEADS TO RETURN THERMISTOR

Next: !p1204, !f1205

OBSERVATION SYSTEM PRESSURE

Next: p1240, f2508

OBSERVATION THERMISTORS CORRECTLY FITTED

Next: p1214, !f1215

OBSERVATION PUMP RUNS

Next: p1286, f2815

INSPECTION ISOLATION VALVES FLOW AND RETURN

Next: p1207, !f1268

PUMP LIMPET TEST

Next: p2583, !f1322

TEMPERATURE DIFFERENTIAL FLOW AND RETURN - CH

ATTACH TEMPERATURE C

Next: p2485, f2700

VOLTAGE FAN CONTROL PCB

{GAINPCBACS}
REMOVE ELECTRICAL CONNECTOR FROM FAN ASSEMBLY, LEAVE IN A SAFE LOCATION

Next: p1345, !f1355

VOLTAGE FAN 22 VDC AT PCB

REMOVE ELECTRICAL CONNECTOR FROM FAN ASSEMBLY, LEAVE IN A SAFE LOCATION

Next: p1351, !f1352

RESISTANCE HARNESS FAN

REMOVE ELECTRICAL CONNECTORS X20 FROM THE PCB AND TO THE FAN ASSEMBLY

Next: !p1353, !f1354

DISCONNECT EBUS CONTROLS

REMOVE CONNECTOR X17 FROM THE PCB

Next: !p1366, !f1367

RESET APPLIANCE - FAULT CODE

ENSURE NO DEMANDS ARE PRESENT

Next: !p1385, !f1386

FACTORY RESET - PCB MAIN

FACTORY RESET PRO

Next: !p1427, !f1428

VOLTAGE MAINS POWER INPUT AT PCB

{GAINPCBACS}

Next: p2065, f1603

DISCONNECT WATER PRESSURE SENSOR CONNECTOR

REMOVE WATER PRESSURE SENSOR CONNECTOR AND MAKE SAFE

Next: p1608, !f1609

DISCONNECT FAN CONNECTOR

REMOVE ELECTRICAL CONNECTOR TO FAN ASSEMBLY AND MAKE SAFE

Next: p1610, !f1611

VOLTAGE DISPLAY AT INTERFACE PCB

GAIN ACCESS TO INTERFACE PCB (USE INSULATION MAT AS REQUIRED)

Next: !p2096, !f2097

FAULT CODES

Next: !p1633, !f1634

OBSERVATION INTERNAL PROGRAMMER FITTED

Next: p1868, f1869

OBSERVATION EXTERNAL CONTROLS FITTED - SELF TEST

{GAINPCBACS}

Next: p1876, f1884

DISCONNECT EXTERNAL CONTROLS

REMOVE ALL EXTERNAL

Next: !p1877, f1878

DISCONNECT EXTERNAL CONTROLS

REMOVE ALL EXTERNAL

Next: !p1882, !f1883

OBSERVATION SYSTEM PRESSURE - LOW PRESSURE

Next: p1942, f2502

SYSTEM PRESSURE SET CORRECTLY

THE SYSTEM PRESSURE

Next: !p1949, !f1950

OBSERVATION SYSTEM PRESSURE

Next: p2138, f2514

PUMP LIMPET TEST

Next: p2010, !f2011

INSPECTION AIR BOX

REMOVE AIR BOX FROM GAS VALVE

Next: p2648, !f2013

RESISTANCE FUSE PCB

REMOVE FUSE FROM PCB

Next: p1602, f2091

RESET OPTIONS

Next: !p2112, !f2113

RESISTANCE HARNESS FAN

REMOVE ELECTRICAL CONNECTORS X20 FROM THE PCB AND TO THE FAN ASSEMBLY

Next: !p2123, !f2124

INSPECTION CONDENSATE PIPE

Next: p2127, !f2137

VOLTAGE RECTIFICATION AT PCB

{GAINPCBACS}
REMOVE ELECTRICAL CONNECTOR TO SPARK GENERATOR AND MAKE SAFE
ENSURE NO DEMANDS

Next: p2128, !f2129

VOLTAGE RECTIFICATION - BURNER IGNITED

Next: !p2130, f2131

RESISTANCE HARNESS SPARK GENERATOR

REMOVE ELECTRICAL CONNECTOR TO SPARK GENERATOR AND CONNECTOR X21 FROM THE PCB

Next: !p2134, !f2135

PRESSURE GAS VALVE INLET

ATTACH PRESSURE GAUGE TO GAS VALVE PRESSURE INLET TEST POINT

Next: p2009, !f2162

RESISTANCE THERMISTOR FLOW

REMOVE LEFT HAND SIDE PANEL
REMOVE RED LEADS TO FLOW THERMISTOR

Next: p2179, !f2195

RESISTANCE THERMISTOR RETURN

REMOVE LEFT HAND SIDE PANEL
REMOVE BLUE LEADS TO RETURN THERMISTOR

Next: p788, !f2196

RESISTANCE THERMISTOR RETURN

REMOVE LEFT HAND SIDE PANEL
REMOVE BLUE LEADS TO RETURN THERMISTOR

Next: !p2200, !f2201

OBSERVATION GAS VALVE CLOSURE

Next: !p2232, !f2233

OBSERVATION PCB CONNECTIONS

Next: p2240, !f2241

OBSERVATION DSN NUMBER

PARAMETER DSN NUM

Next: p2242, f2243

FACTORY RESET - PCB MAIN

FACTORY RESET PRO

Next: !p2246, !f2247

OBSERVATION EXTERNAL CONTROLS FITTED

{GAINPCBACS}

Next: p2256, ?2257, ?2259

BYPASS EXTERNAL CONTROLS - 240V

DISCONNECT 240V EXTE

Next: !p2269, f2270

BYPASS EXTERNAL CONTROLS - 24V

DISCONNECT 24V EXTER

Next: !p2263, f2264

DISCONNECT EBUS CONTROLS - CH DEMAND

DISCONNECT EBUS WIRING CONNECTIONS TO CONNECTOR X17 AND MAKE SAFE

Next: !p2261, f2275

DISCONNECT INTERNAL PROGRAMMER

GAIN ACCESS TO UPPER

Next: !p2267, f2296

DISCONNECT INTERNAL PROGRAMMER

GAIN ACCESS TO UPPER

Next: !p2273, f2310

RESISTANCE THERMISTOR FLOW

REMOVE LEFT HAND SIDE PANEL
REMOVE RED LEADS TO FLOW THERMISTOR

Next: p2278, !f2279

RESISTANCE THERMISTOR RETURN

REMOVE LEFT HAND SIDE PANEL
REMOVE BLUE LEADS TO RETURN THERMISTOR

Next: !p2280, !f2281

RESISTANCE THERMISTOR FLOW

REMOVE LEFT HAND SIDE PANEL
REMOVE RED LEADS TO FLOW THERMISTOR

Next: p2292, !f2293

RESISTANCE THERMISTOR RETURN

REMOVE LEFT HAND SIDE PANEL
REMOVE BLUE LEADS TO RETURN THERMISTOR

Next: !p2294, !f2295

RESISTANCE THERMISTOR FLOW

REMOVE LEFT HAND SIDE PANEL
REMOVE RED LEADS TO FLOW THERMISTOR

Next: p2299, !f2300

RESISTANCE THERMISTOR RETURN

REMOVE LEFT HAND SIDE PANEL
REMOVE BLUE LEADS TO RETURN THERMISTOR

Next: !p2301, !f2302

RESISTANCE THERMISTOR FLOW

REMOVE LEFT HAND SIDE PANEL
REMOVE RED LEADS TO FLOW THERMISTOR

Next: p2306, !f2307

RESISTANCE THERMISTOR RETURN

REMOVE LEFT HAND SIDE PANEL
REMOVE BLUE LEADS TO RETURN THERMISTOR

Next: !p2308, !f2309

RESISTANCE THERMISTOR FLOW

REMOVE LEFT HAND SIDE PANEL
REMOVE RED LEADS TO FLOW THERMISTOR

Next: p2313, !f2314

RESISTANCE THERMISTOR RETURN

REMOVE LEFT HAND SIDE PANEL
REMOVE BLUE LEADS TO RETURN THERMISTOR

Next: !p2315, !f2316

INSPECTION ISOLATION VALVES FLOW AND RETURN

Next: p2375, !f2320

PUMP LIMPET TEST

Next: p2354, !f2322

INSPECTION EXPANSION VESSEL PRESSURE

DISCHARGE PRIMARY SYSTEM WATER

Next: !p2337, !f2338

INSPECTION CONDENSATE PIPE

Next: p235, !f270

OBSERVATION SPARK AT ELECTRODE

Next: p236, f237

TEMPERATURE DIFFERENTIAL - INTERNAL BYPASS

ENSURE RADIATORS ARE

Next: !p2352, !f2353

INSPECTION EXTERNAL BYPASS

Next: p2351, !f2358

PRESSURE GAS VALVE INLET

ATTACH PRESSURE GAUGE TO GAS VALVE PRESSURE INLET TEST POINT

Next: p295, !f243

RESISTANCE THERMISTOR FLOW

REMOVE LEFT HAND SIDE PANEL
REMOVE RED LEADS TO FLOW THERMISTOR

Next: p2371, !f2372

RESISTANCE THERMISTOR RETURN

REMOVE LEFT HAND SIDE PANEL
REMOVE BLUE LEADS TO RETURN THERMISTOR

Next: !p2373, !f2374

OBSERVATION SYSTEM PRESSURE

Next: p2319, f2520

OBSERVATION SPARKING HEARD

REMOVE IGNITION LEAD FROM SPARK GENERATOR AND MAKE SAFE

Next: !p240, f2114

RESISTANCE THERMISTOR RETURN

REMOVE LEFT HAND SIDE PANEL
REMOVE BLUE LEADS TO RETURN THERMISTOR

Next: !p30, !f26

VOLTAGE GAS VALVE AT PCB

{GAINPCBACS}
REMOVE ELECTRICAL CONNECTOR FROM GAS VALVE AND MAKE SAFE

Next: p244, f245

RESISTANCE GAS VALVE AND HARNESS

{GAINPCBACS}
REMOVE CONNECTOR X20 FROM THE PCB

Next: p2550, f251

INSPECTION ISOLATION VALVES FLOW AND RETURN

Next: p1062, !f2478

OBSERVATION PUMP OVERRUN TIME

Next: p2486, !f2487

RUN BOILER TO MAX TEMP - FAULT CODE F20

REMOVE LEFT HAND SID

Next: !p2488, ?2490, ?2492

INSPECTION SENSOR SYSTEM PRESSURE AND MANIFOLD

DRAIN PRIMARY SYSTEM WATER FROM BOILER
REMOVE SYSTEM PRESSURE SENSOR FROM THE LEFT HAND MANIFOLD

Next: !p2527, ?2528, ?2530

INSPECTION ELECTRODE IGNITION

REMOVE IGNITION ELECTRODE

Next: p2554, !f2552

INSPECTION FLUE ASSEMBLY

Next: p2555, !f2556

INSPECTION BURNER ASSEMBLY

REMOVE COMBUSTION BLOCK FROM BOILER
REMOVE LEFT-HAND SIDE CASE IF REQUIRED

Next: p2557, !f2558

INSPECTION FLUEWAYS HEAT EXCHANGER

Next: !p2560, !f2559

RESISTANCE THERMISTOR FLOW

REMOVE LEFT HAND SIDE PANEL
REMOVE RED LEADS TO FLOW THERMISTOR

Next: p2604, !f2603

RESISTANCE THERMISTOR RETURN

REMOVE LEFT HAND SIDE PANEL
REMOVE BLUE LEADS TO RETURN THERMISTOR

Next: p1287, !f2624

OBSERVATION THERMISTORS CORRECTLY FITTED

Next: p2649, !f2650

RESISTANCE THERMISTOR FLOW

REMOVE LEFT HAND SIDE PANEL
REMOVE RED LEADS TO FLOW THERMISTOR

Next: p2651, !f2652

RESISTANCE THERMISTOR RETURN

REMOVE LEFT HAND SIDE PANEL
REMOVE BLUE LEADS TO RETURN THERMISTOR

Next: p2653, !f2654

TEMPERATURE DIFFERENTIAL FLOW AND RETURN - CH

ATTACH TEMPERATURE C

Next: p2655, f2705

GAS RATE

Next: p2657, ?2659, ?2661

OBSERVATION MAXIMUM HEATING POWER

Next: !p2685, f2686

OBSERVATION MAXIMUM HEATING POWER

Next: p2669, f2670

INSPECTION FLUE ASSEMBLY

Next: p2663, !f2664

INSPECTION BURNER ASSEMBLY

REMOVE COMBUSTION BLOCK FROM BOILER
REMOVE LEFT-HAND SIDE CASE IF REQUIRED

Next: p2665, !f2666

INSPECTION FLUEWAYS HEAT EXCHANGER

Next: !p2667, !f2668

INSPECTION FLUE ASSEMBLY

Next: p2679, !f2680

PARAMETER SET CORRECTLY - RADIATOR TEMPERATURE LOW

THE MAXIMUM HEATING

Next: !p2677, !f2678

INSPECTION BURNER ASSEMBLY

REMOVE COMBUSTION BLOCK FROM BOILER
REMOVE LEFT-HAND SIDE CASE IF REQUIRED

Next: p2681, !f2682

INSPECTION FLUEWAYS HEAT EXCHANGER

Next: !p2683, !f2684

PARAMETER SET CORRECTLY - RADIATOR TEMPERATURE LOW

THE MAXIMUM HEATING

Next: !p2693, !f2694

INSPECTION INTERNAL BYPASS

APPLIANCE DRAINED AND DISCHARGED

Next: !p2699, !f2698

INSPECTION INTERNAL BYPASS

APPLIANCE DRAINED AND DISCHARGED

Next: !p2703, !f2704

INSPECTION INTERNAL BYPASS

APPLIANCE DRAINED AND DISCHARGED

Next: !p2708, !f2709

INSPECTION INTERNAL BYPASS

APPLIANCE DRAINED AND DISCHARGED

Next: !p2713, !f2714

OBSERVATION PUMP RUNS

Next: p2719, f2848

PUMP LIMPET TEST

Next: p847, !f2723

OBSERVATION DS NUMBER RESET

SOMETIMES THE SOFTWA

Next: p1425, !f2734

RESISTANCE HARNESS FAN

REMOVE ELECTRICAL CONNECTORS X20 FROM THE PCB AND TO THE FAN ASSEMBLY

Next: p2739, !f2740

VOLTAGE FAN HALL SENSOR AT PCB

{GAINPCBACS}

Next: !p2741, !f2742

RESISTANCE HARNESS FAN

REMOVE ELECTRICAL CONNECTORS X20 FROM THE PCB AND TO THE FAN ASSEMBLY

Next: p2747, !f2748

VOLTAGE FAN HALL SENSOR AT PCB

{GAINPCBACS}

Next: !p2749, !f2750

INSPECTION CONDENSATE PIPE

Next: p284, !f281

RESISTANCE PUMP AND HARNESS ERP

{GAINPCBACS}
REMOVE X14 PUMP CONNECTOR FROM THE PCB

Next: !p2801, !f2802

PRESSURE GAS VALVE INLET

ATTACH PRESSURE GAUGE TO GAS VALVE PRESSURE INLET TEST POINT

Next: p282, !f283

RESISTANCE PUMP HARNESS ERP

REMOVE X14 PUMP CONNECTOR FROM THE PCB
DISCONNECT PLUG FROM THE PUMP

Next: p2811, !f2812

VOLTAGE PUMP AT PCB

{GAINPCBACS}

Next: !p2809, !f2810

VOLTAGE PUMP AT PCB ERP

{GAINPCBACS}

Next: !p2813, !f2814

RESISTANCE PUMP HARNESS ERP

REMOVE X14 PUMP CONNECTOR FROM THE PCB
DISCONNECT PLUG FROM THE PUMP

Next: p2822, !f2823

VOLTAGE PUMP AT PCB

{GAINPCBACS}

Next: !p2820, !f2821

INSPECTION FLUE ASSEMBLY

Next: p289, !f290

VOLTAGE PUMP AT PCB ERP

{GAINPCBACS}

Next: !p2824, !f2825

RESISTANCE PUMP HARNESS ERP

REMOVE X14 PUMP CONNECTOR FROM THE PCB
DISCONNECT PLUG FROM THE PUMP

Next: p2833, !f2834

VOLTAGE PUMP AT PCB

{GAINPCBACS}

Next: !p2831, !f2832

VOLTAGE PUMP AT PCB ERP

{GAINPCBACS}

Next: !p2835, !f2836

RESISTANCE PUMP HARNESS ERP

REMOVE X14 PUMP CONNECTOR FROM THE PCB
DISCONNECT PLUG FROM THE PUMP

Next: p2844, !f2845

INSPECTION AIR BOX

REMOVE AIR BOX FROM GAS VALVE

Next: p280, !f288

VOLTAGE PUMP AT PCB

{GAINPCBACS}

Next: !p2842, !f2843

VOLTAGE PUMP AT PCB ERP

{GAINPCBACS}

Next: !p2846, !f2847

RESISTANCE PUMP HARNESS ERP

REMOVE X14 PUMP CONNECTOR FROM THE PCB
DISCONNECT PLUG FROM THE PUMP

Next: p2855, !f2856

VOLTAGE PUMP AT PCB

{GAINPCBACS}

Next: !p2853, !f2854

VOLTAGE PUMP AT PCB ERP

{GAINPCBACS}

Next: !p2857, !f2858

INSPECTION BURNER ASSEMBLY

REMOVE COMBUSTION BLOCK FROM BOILER
REMOVE LEFT-HAND SIDE CASE IF REQUIRED

Next: p291, !f292

INSPECTION FLUEWAYS HEAT EXCHANGER

Next: !p293, !f294

INSPECTION AIR BOX

REMOVE AIR BOX FROM GAS VALVE

Next: p242, !f321

INSPECTION FLUE ASSEMBLY

Next: p486, !f487

INSPECTION COMBUSTION SEALS

Next: p488, !f489

ADJUSTMENT AIR/GAS RATIO

CONNECT FGA TO THE COMBUSTION TEST POINT ON THE BOILER
ENSURE CH SYSTEM IS COOL

Next: !p490, f548

INSPECTION AIR BOX

REMOVE AIR BOX FROM GAS VALVE

Next: p526, !f524

INSPECTION CONDENSATE PIPE

Next: p484, !f546

INSPECTION FLUEWAYS HEAT EXCHANGER

Next: !p551, !f552

RESET APPLIANCE - FAULT CODE

ENSURE NO DEMANDS ARE PRESENT

Next: !p738, !f739

RESET APPLIANCE - FAULT CODE

ENSURE NO DEMANDS ARE PRESENT

Next: !p752, !f753

OBSERVATION SYSTEM PRESSURE

Next: p786, f2544

OBSERVATION THERMISTORS CORRECTLY FITTED

Next: p2163, !f789

OBSERVATION PUMP RUNS

Next: p790, f2837

PUMP LIMPET TEST

Next: p797, !f1377

CH OPERATION - FAULT CODE F83

Next: !p799, f2710

RESISTANCE THERMISTOR FLOW

REMOVE LEFT HAND SIDE PANEL
REMOVE RED LEADS TO FLOW THERMISTOR

Next: p842, !f843

RESISTANCE THERMISTOR RETURN

REMOVE LEFT HAND SIDE PANEL
REMOVE BLUE LEADS TO RETURN THERMISTOR

Next: p846, !f845

RESET APPLIANCE - FAULT CODE

ENSURE NO DEMANDS ARE PRESENT

Next: p2715, !f848

CH OPERATION - FAULT CODE

Next: !p849, !f850

ADJUST PRIMARY SYSTEM PRESSURE

LOCATE PRIMARY SYSTEM FILLING LOOP

Next: p938, f2538

RESISTANCE HARNESS SENSOR SYSTEM PRESSURE

REMOVE CONNECTOR X2 FROM THE PCB
REMOVE CONNECTOR TO SYSTEM PRESSURE SENSOR

Next: !p936, !f937

RESET APPLIANCE - FAULT CODE

ENSURE NO DEMANDS ARE PRESENT

Next: !p945, !f946

RESET APPLIANCE - FAULT CODE

ENSURE NO DEMANDS ARE PRESENT

Next: !p1059, !f952

VOLTAGE FAN CONTROL PCB

{GAINPCBACS}
REMOVE ELECTRICAL CONNECTOR FROM FAN ASSEMBLY, LEAVE IN A SAFE LOCATION

Next: p100, f101

System Information

  • Total Tests: 717
  • Sequence Logic: Decoded from encrypted .seq file
  • Navigation: Dynamic based on pass/fail results
  • Source: 4731307 GW SWIFTFLOW 100 SIT Control

XSol Diagnostic System - Generated from extracted test data