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:

HEATLINE CAPRIZPLUS / MONZA

GLOBALLY REPLACED

Next: &1, *

NO FAULT FOUND

Next: nff

CASE REMOVAL

Next: &1599, !f2

TYPE OF DIAGNOSTIC PROCEDURE

PLEASE SELECT FROM O

Next: &43, !f4

INITIAL SETUP AND STANDBY CHECK

ENSURE NO DEMANDS ARE PRESENT

Next: &3, ?10, ?1865

OBSERVATION PUMP RUNS

Next: &31, f2334

OBSERVATION BURNER IGNITION & ESTABLISH

Next: &1725, ?110, ?112, ?114, ?1635

DHW FLOW RATE

Next: &87, f44

OBSERVATION FAN RUNS - DHW DEMAND

ENSURE BOILER IS COOL
RUN HOT WATER TAP AT 3 LITRES PER MINUTE

Next: &29, ?88, ?90

CH OPERATION

Next: &2494, ?560, ?562, ?564

DHW OPERATION

Next: &333, ?336, ?338, ?340, ?342

DIAGNOSTICS CODE GUIDE

Next: &nff, !f2360

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 F72 / F84 / F85

NOT USED - HEADER FOR FAULT CODE

Next: &nff, f839

FAULT CODE F83

NOT USED

Next: &nff, f782

FAULT CODE F76

NOT USED

Next: &nff, f1378

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 F22

HEADER FOR FAULT CODE - OUTSIDE MODEL

Next: &nff, f2584

FUSE FURTHER INVESTIGATION

NOT USED

Next: &nff, f1579

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

OBSERVATION BOILER RESPONDS TO CH DEMAND

Next: &335, f1824

TRISELINKROOT

CHRIS PUT THIS HERE

Next: &nff, f2376

OBSERVATION PUMP OVERRUN TIME

Next: &nff, !f2495

FAULT CODE F73 - F74

HEADER FOR FAULT CODE - OUTSIDE MODEL

Next: &nff, f2626

FAN DOES NOT RUN

SENSOR - NTC

Next: End

FAN DOES NOT RUN 2

SENSOR - NTC

Next: End

FAN DOES NOT RUN

CIRCUIT BOARD

Next: End

FAULT CODE F23 - F24

SENSOR NTC (INSTALLATION)

Next: End

FAULT CODE F23 - F24

PUMP

Next: End

FAN DOES NOT RUN

HARNESS - WIRING (MAIN)

Next: End

FAULT CODE F23 - F24

SENSOR - NTC

Next: End

FAULT CODE F23 - F24 2

SENSOR - NTC

Next: End

FAULT CODE F23 - F24 4

SENSOR - NTC

Next: End

FAULT CODE F23 - F24 3

SENSOR - NTC

Next: End

FAULT CODE F26

GAS SECTION

Next: End

FAULT CODE F26

CIRCUIT BOARD

Next: End

FAULT CODE F71

SENSOR NTC (INSTALLATION)

Next: End

FAULT CODE F71

SENSOR - NTC

Next: End

FAULT CODE F71

CIRCUIT BOARD

Next: End

FAULT CODE F20

SENSOR - NTC

Next: End

FAULT CODE F20 2

SENSOR - NTC

Next: End

FAULT CODE F20

SENSOR NTC (INSTALLATION)

Next: End

FAULT CODE F20

SET - VALVES (CH FLOW AND RETURN)

Next: End

SELF TEST

FROST PROTECTION NORMAL OPERATION

Next: End

FAULT CODE F20 4

SENSOR - NTC

Next: End

FAULT CODE F20 3

SENSOR - NTC

Next: End

FAULT CODE F20 5

SENSOR - NTC

Next: End

FAULT CODE F20 6

SENSOR - NTC

Next: End

FAULT CODE F20

Next: End

FAULT CODE F20 4

PUMP

Next: End

FAULT CODE F20

PCB (PUMP OVERRUN)

Next: End

FAULT CODE F32 3

CIRCUIT BOARD

Next: End

FAULT CODE F32

CIRCUIT BOARD

Next: End

FAULT CODE F32

HARNESS - WIRING (MAIN)

Next: End

FAULT CODE F32 2

CIRCUIT BOARD

Next: End

FAULT CODE F49

CIRCUIT BOARD

Next: End

FAULT CODE F49 2

CIRCUIT BOARD

Next: End

FAULT CODE F83

PUMP

Next: End

FAULT CODE F76

CIRCUIT BOARD

Next: End

FAULT CODE F70

CIRCUIT BOARD

Next: End

SELF TEST

SENSOR - NTC

Next: End

FAULT CODE ERR

CABLE - USER INTERFACE

Next: End

FAULT CODE HISTORY

Z REDIRECTION

Next: End

NO DISPLAY

FUSE (FUSED SPUR)

Next: End

NO DISPLAY

SENSOR - PRESSURE

Next: End

NO DISPLAY

FAN

Next: End

FAULT CODES

Z REDIRECTION

Next: End

FAULT CODE F32 2

HARNESS - WIRING (MAIN)

Next: End

FAULT CODE F32 3

HARNESS - WIRING (MAIN)

Next: End

STATUS CODES

Z REDIRECTION

Next: End

CH DOES NOT RESPOND 1

CIRCUIT BOARD

Next: End

CH DOES NOT RESPOND 2

CIRCUIT BOARD

Next: End

CH DOES NOT RESPOND

CIRCUIT BOARD

Next: End

CH DOES NOT RESPOND 4

CIRCUIT BOARD

Next: End

CH DOES NOT RESPOND 3

CIRCUIT BOARD

Next: End

CASE OFF

Z REDIRECTION

Next: End

DHW COOL RADS COOL

PUMP

Next: End

DHW TOO HOT

SENSOR NTC (INSTALLATION)

Next: End

DHW TOO HOT

SENSOR - NTC

Next: End

DHW TOO HOT 2

SENSOR - NTC

Next: End

DHW RUNS HOT THEN COLD

PUMP

Next: End

DHW RUNS HOT COOL

SENSOR NTC (INSTALLATION)

Next: End

DHW RUNS HOT THEN COLD

SENSOR - NTC

Next: End

DHW RUNS HOT THEN COLD 2

SENSOR - NTC

Next: End

NO DISPLAY

FUSE PCB

Next: End

BURNER DOES NOT IGNITE 2

HARNESS - WIRING (MAIN)

Next: End

FAN DOES NOT RUN

SENSOR NTC (INSTALLATION)

Next: End

FAN DOES NOT RUN 4

SENSOR - NTC

Next: End

FAN DOES NOT RUN 3

SENSOR - NTC

Next: End

RESET OPTION

Z REDIRECTION

Next: End

BURNER DOES NOT IGNITE 3

HARNESS - WIRING (MAIN)

Next: End

BURNER DOES NOT IGNITE 4

HARNESS - WIRING (MAIN)

Next: End

BURNER DOES NOT ESTABLISH

CIRCUIT BOARD

Next: End

BURNER DOES NOT ESTABLISH

ELECTRODE

Next: End

BURNER DOES NOT ESTABLISH

HARNESS - WIRING (MAIN)

Next: End

DOES NOT EST

CONDENSATE TRAP / SYPHON

Next: End

DHW COOL RADS COOL

GAS INLET PRESSURE

Next: End

FAULT CODE F83 2

SENSOR - NTC

Next: End

FAULT CODE F83

SENSOR - NTC

Next: End

FAULT CODE F83 4

SENSOR - NTC

Next: End

FAULT CODE F83 3

SENSOR - NTC

Next: End

FAULT CODE F61-67

GAS SECTION

Next: End

FAULT CODE F61 - 67

PCB AND GAS VALVE

Next: End

FAULT CODE F61 - 67

PCB WIRING CONNECTIONS

Next: End

FAULT CODE F61 - 67

CIRCUIT BOARD

Next: End

DHW FLOW RATE

FLOW SWITCH

Next: End

DHW COOL RADS HEAT

CIRCUIT BOARD

Next: End

NO POWER FOR DHW

HARNESS - WIRING (DIVERTER VALVE)

Next: End

NO POWER TO DIVERTER FOR CH

CIRCUIT BOARD

Next: End

NO POWER FOR CH

HARNESS - WIRING (DIVERTER VALVE)

Next: End

STUCK IN DHW POSITION

BODY - 3 WAY VALVE

Next: End

NO POWER TO PUMP

HARNESS - WIRING (PUMP)

Next: End

NO POWER TO PUMP 2

HARNESS - WIRING (PUMP)

Next: End

NO POWER TO PUMP 3

HARNESS - WIRING (PUMP)

Next: End

NO POWER TO PUMP 4

HARNESS - WIRING (PUMP)

Next: End

NOT ENOUGH HEATING OUTPUT

PARAMETER HEATING POWER

Next: End

BLANK FOR DIAGNOSTICS CODE GUIDE

Z REDIRECTION

Next: End

FAULT CODE F61 - F67

PARAMETER DSN

Next: End

FAULT CODE F70

PARAMETER DSN

Next: End

DHW NOT RECOGNISED

FLOW SWITCH

Next: End

THERMAL FUSE SECTION

HARNESS - WIRING (MAIN)

Next: End

FAULT CODE F76

CABLE - SENSOR TO HARNESS - HEAT EXCHANGER

Next: End

BLANK DISPLAY

CABLE - USER INTERFACE

Next: End

TRISE2

Z REDIRECTION

Next: End

FUSE INVESTIGATION

HARNESS - WIRING (DIVERTER VALVE)

Next: End

WATER LEAK DAMAGED HEAD

DIVERTER VALVE MOTOR AND BODY

Next: End

FUSE INVESTIGATION SPARK GEN

HARNESS - WIRING (MAIN)

Next: End

BURNER DOES NOT IGNITE

GAS INLET PRESSURE

Next: End

SELF TEST 2

CIRCUIT BOARD

Next: End

BOILER FIRES SELF TEST 2

CIRCUIT BOARD

Next: End

FAULT CODE F23 - F24 2

SET - VALVES (CH FLOW AND RETURN)

Next: End

FAULT CODE F23 - F24

Next: End

FULL MODEL

PCB (PUMP OVERRUN)

Next: End

RESTRICTED / BLOCKED 2

PIPE - OUTLET (PRIMARY FLOW FILTER)

Next: End

RESTRICTED / BLOCKED 3

PIPE - OUTLET (PRIMARY FLOW FILTER)

Next: End

RESTRICTED / BLOCKED 5

PIPE - OUTLET (PRIMARY FLOW FILTER)

Next: End

RESTRICTED / BLOCKED 4

PIPE - OUTLET (PRIMARY FLOW FILTER)

Next: End

RESTRICTED / BLOCKED 6

PIPE - OUTLET (PRIMARY FLOW FILTER)

Next: End

RADS DO NOT HEAT

BYPASS GROUP

Next: End

RESTRICTED / BLOCKED

SET - VALVES (RETURN FILTER)

Next: End

OPEN TOO MUCH

Next: End

SHORTED

CLOCK

Next: End

CH DOES NOT RESPOND 8

CLOCK

Next: End

CH DOES NOT RESPOND 6

CLOCK

Next: End

INCORRECTLY DISPLAYING LOW PRESSURE

CIRCUIT BOARD

Next: End

PRESSURE SENSOR SECTION

HARNESS - WIRING (MAIN)

Next: End

SELF TEST 2

SENSOR - NTC

Next: End

INCORRECTLY DISPLAYING FAULT CODE F73/F74

CIRCUIT BOARD

Next: End

PRESSURE SENSOR SECTION FAULT CODE F73/F74

HARNESS - WIRING (MAIN)

Next: End

FAULT CODE F22 F73/F74

CIRCUIT BOARD

Next: End

FAULT CODE F22

CIRCUIT BOARD

Next: End

PRESSURE SENSOR SECTION FAULT CODE

HARNESS - WIRING (MAIN)

Next: End

INCORRECTLY DISPLAYING FAULT CODE

CIRCUIT BOARD

Next: End

BURNER DOES NOT IGNITE

CONDENSATE TRAP / SYPHON

Next: End

BURNER DOES NOT IGNITE

PCB AND GAS VALVE

Next: End

BURNER DOES NOT IGNITE 2

GAS SECTION

Next: End

BURNER DOES NOT IGNITE

FLUE

Next: End

BURNER DOES NOT IGNITE

BURNER

Next: End

BURNER DOES NOT IGNITE

AIR BOX

Next: End

BURNER DOES NOT IGNITE

HEAT EXCHANGER

Next: End

BURNER DOES NOT IGNITE 2

ELECTRODE

Next: End

BURNER NOISY/ BAFFLES OUT

GAS INLET PRESSURE

Next: End

BURNER NOISY/ BAFFLES OUT

FLUE

Next: End

BURNER NOISY/ BAFFLES OUT

BURNER

Next: End

BURNER NOISY/ BAFFLES OUT

AIR BOX

Next: End

BURNER NOISY/ BAFFLES OUT

HEAT EXCHANGER

Next: End

DHW COOL RADS COOL

SENSOR NTC (INSTALLATION)

Next: End

DHW COOL RADS COOL

SENSOR - NTC

Next: End

DHW COOL RADS COOL 2

SENSOR - NTC

Next: End

RESTRICTED / BLOCKED

PIPE - OUTLET (PRIMARY FLOW FILTER)

Next: End

POOR DHW

PARAMETER DSN - DHW

Next: End

FAULTY MIXTER TAP ETC

PLUMBING ISSUE

Next: End

LOW GAS RATE

CONDENSATE TRAP / SYPHON

Next: End

LOW GAS RATE

FLUE

Next: End

LOW GAS RATE

BURNER

Next: End

DHW COOL RADS COOL

AIR BOX

Next: End

LOW GAS RATE

FAN

Next: End

LOW GAS RATE

HEAT EXCHANGER

Next: End

FUSE FURTHER INVESTIGATION

PUMP

Next: End

DHW NOT RECOGNISED

CIRCUIT BOARD

Next: End

POOR HW

BYPASS (BLOCKED/DAMAGED)

Next: End

HW RUNS HOT THEN COLD

BYPASS (BLOCKED/DAMAGED)

Next: End

F20

BYPASS (BLOCKED/DAMAGED)

Next: End

F23/24

BYPASS (BLOCKED/DAMAGED)

Next: End

BURNER NOISY/ BAFFLES OUT

CONDENSATE TRAP / SYPHON

Next: End

TYPE DIAG PROCEDURE

Z REDIRECTION

Next: End

DHW FLOW RATE

SET VALVES (DHW ISOLATION VALVE)

Next: End

FLOW RATE

COLD WATER SUPPLY

Next: End

RADS DO NOT HEAT

SET - VALVES (CH FLOW AND RETURN)

Next: End

RADS DO NOT HEAT

PUMP

Next: End

SYSTEM PRESSURE RISES

EXPANSION VESSEL

Next: End

RAD TEMP LOW

SENSOR - NTC

Next: End

RAD TEMP LOW 2

SENSOR - NTC

Next: End

FAULT CODE F00/F10

CIRCUIT BOARD

Next: End

FAULT CODE F00/F10

SENSOR - NTC

Next: End

FAULT CODE F01/F11

SENSOR - NTC

Next: End

FAULT CODE F01/F11

CIRCUIT BOARD

Next: End

FAULT CODE F83

SENSOR NTC (INSTALLATION)

Next: End

FAULT CODE F84

SENSOR NTC (INSTALLATION)

Next: End

FAULT CODE F84

SENSOR - NTC

Next: End

FAULT CODE F84 2

SENSOR - NTC

Next: End

FAULT CODE F84

CIRCUIT BOARD

Next: End

FAULT CODE F84 2

CIRCUIT BOARD

Next: End

DHW NOT RECOGNISED

HARNESS - WIRING (MAIN)

Next: End

FAN DOES NOT RUN 2

CIRCUIT BOARD

Next: End

FAN DOES NOT RUN

FAN

Next: End

FAULT CODE F23 - F24 2

CIRCUIT BOARD

Next: End

FAULT CODE F26

HARNESS - WIRING (MAIN)

Next: End

FAULT CODE F26

FAULT CODE RESET

Next: End

FAULT CODE F71

FAULT CODE RESET

Next: End

FAULT CODE F20

CIRCUIT BOARD

Next: End

FAULT CODE F20

FAULT CODE RESET

Next: End

FAULT CODE F20 2

CIRCUIT BOARD

Next: End

FAULT CODE F20 3

CIRCUIT BOARD

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

FAULT CODE F70

FAULT CODE RESET

Next: End

FAULT CODE F70

FACTORY RESET

Next: End

FAULT CODE ERR

FAULT CODE RESET

Next: End

FAULT CODE ERR

FACTORY RESET

Next: End

FAULT CODE ERR

PCB (USER INTERFACE)

Next: End

FAULT CODE HISTORY 2

Z REDIRECTION

Next: End

NO DISPLAY

Next: End

FUSE FURTHER INVESTIGATION

Z REDIRECTION

Next: End

FAULT CODES 2

Z REDIRECTION

Next: End

FAULT CODE F32 4

CIRCUIT BOARD

Next: End

FAULT CODE F32 2

FAN

Next: End

FAULT CODE F32 3

FAN

Next: End

STATUS CODES 2

Z REDIRECTION

Next: End

CH DOES NOT RESPOND 4

Next: End

CH DOES NOT RESPOND

EBUS CONTROLS

Next: End

CH DOES NOT RESPOND 3

Next: End

DHW TOO HOT

CIRCUIT BOARD

Next: End

DHW RUNS HOT THEN COLD

CIRCUIT BOARD

Next: End

NO DISPLAY

Z REDIRECTION

Next: End

NO DISPLAY 2

PCB (USER INTERFACE)

Next: End

BURNER DOES NOT IGNITE 2

FAN

Next: End

DHW NOT RECOGNISED 2

CIRCUIT BOARD

Next: End

RESET OPTIONS

Z REDIRECTION

Next: End

BURNER DOES NOT IGNITE

TRANSFORMER IGNITION

Next: End

BURNER DOES NOT IGNITE 2

CIRCUIT BOARD

Next: End

FAULT CODE F32 5

CIRCUIT BOARD

Next: End

BURNER DOES NOT ESTABLISH 2

CIRCUIT BOARD

Next: End

BURNER DOES NOT ESTABLISH

TRANSFORMER IGNITION

Next: End

FAULT CODE F83

CIRCUIT BOARD

Next: End

FAULT CODE F61 - 67

FAULT CODE RESET

Next: End

FAULT CODE F61 - 67

PCB AND HARNESS - WIRING

Next: End

FAULT CODE F61 - 67

FACTORY RESET

Next: End

DHW COOL RADS HEAT

MOTOR - 3-WAY VALVE

Next: End

NOT MOVING TO CH POSITION

MOTOR - 3-WAY VALVE

Next: End

PUMP DOES NOT RUN 2

PUMP

Next: End

PUMP DOES NOT RUN

CIRCUIT BOARD

Next: End

PUMP DOES NOT RUN 2 2

PUMP

Next: End

PUMP DOES NOT RUN 2

CIRCUIT BOARD

Next: End

PUMP DOES NOT RUN 2 3

PUMP

Next: End

PUMP DOES NOT RUN 3

CIRCUIT BOARD

Next: End

PUMP DOES NOT RUN 2 4

PUMP

Next: End

PUMP DOES NOT RUN 4

CIRCUIT BOARD

Next: End

NOT RECOGNISING DEMAND

SENSOR - FLOW C/W CABLE

Next: End

HEAT EXCHANGER - THERMAL FUSE

HEAT EXCHANGER - THERMAL FUSE

Next: End

NO DISPLAY

CIRCUIT BOARD

Next: End

TRISE

Z REDIRECTION

Next: End

RESTRICTED OR BLOCKED

FILTER - INLET

Next: End

DHW FLOW RATE

RESTRICTOR

Next: End

RESTRICTED / BLOCKED

HEAT EXCHANGER - PLATE TO PLATE

Next: End

FUSE INVESTIGATION

MOTOR - 3-WAY VALVE

Next: End

FUSE INVESTIGATION

TRANSFORMER IGNITION

Next: End

BURNER DOES NOT IGNITE

ELECTRODE

Next: End

SELF TEST 2

EBUS CONTROLS

Next: End

BOILER FIRES SELF TEST 2

Next: End

FAULT CODE F23 - F24

FAULT CODE RESET

Next: End

FAULT CODE F20

HEAT EXCHANGER - WATER WAYS

Next: End

FAULT CODE F23 - F24

HEAT EXCHANGER - WATER WAYS

Next: End

FAULT CODE F83

HEAT EXCHANGER - WATER WAYS

Next: End

FAULT CODE F83

HEAT EXCHANGER - PLATE TO PLATE

Next: End

DHW RUNS HOT THEN COLD

HEAT EXCHANGER - WATER WAYS

Next: End

PCB BLOWING FUSE

PCB - FUSE BLOWN

Next: End

SHORTED

CABLE - CLOCK

Next: End

OPEN CIRCUIT

CABLE - CLOCK

Next: End

OPEN CIRUIT 2

CABLE - CLOCK

Next: End

INCORRECTLY REGISTERING LOW PRESURE

CIRCUIT BOARD

Next: End

FAILED ELECTRICALLY CAUSING LOW PRESSURE TO BE DISPLAYED

SENSOR - PRESSURE

Next: End

BLOCKED CAUSING LOW PRESSURE TO BE DISPLAYED

SENSOR - PRESSURE

Next: End

BLOCKED CAUSING LOW PRESSURE TO BE DISPLAYED

BODY - 3 WAY VALVE

Next: End

LOW PRESSURE

SYSTEM PRESSURE

Next: End

NOT REFLECTING SYSTEM PRESSURE

PRESSURE GAUGE

Next: End

LOW PRESSURE FAULT CODE F73/F74

SYSTEM PRESSURE

Next: End

NOT REFLECTING SYSTEM PRESSURE FAULT CODE F73/F74

PRESSURE GAUGE

Next: End

FAILED ELECTRICALLY FAULT CODE F73/F74

SENSOR - PRESSURE

Next: End

BLOCKED CAUSING FAULT CODE F73/F74

SENSOR - PRESSURE

Next: End

BLOCKED CAUSING FAULT CODE F73/F74

BODY - 3 WAY VALVE

Next: End

FAULT CODE F73/F74

FAULT CODE RESET

Next: End

BOILER RESET

SYSTEM PRESSURE LOSS - F22

Next: End

LOW PRESSURE 2

SYSTEM PRESSURE

Next: End

NOT REFLECTING SYSTEM PRESSURE 2

PRESSURE GAUGE

Next: End

LOW PRESSURE 3

SYSTEM PRESSURE

Next: End

NOT REFLECTING SYSTEM PRESSURE 3

PRESSURE GAUGE

Next: End

LOW PRESSURE 4

SYSTEM PRESSURE

Next: End

NOT REFLECTING SYSTEM PRESSURE 4

PRESSURE GAUGE

Next: End

LOW PRESSURE 5

SYSTEM PRESSURE

Next: End

NOT REFLECTING SYSTEM PRESSURE 5

PRESSURE GAUGE

Next: End

LOW PRESSURE 6

SYSTEM PRESSURE

Next: End

NOT REFLECTING SYSTEM PRESSURE 6

PRESSURE GAUGE

Next: End

NOT REFLECTING SYSTEM PRESSURE 7

PRESSURE GAUGE

Next: End

LOW PRESSURE 7

SYSTEM PRESSURE

Next: End

NOT REFLECTING SYSTEM PRESSURE FAULT CODE

PRESSURE GAUGE

Next: End

BLOCKED CAUSING FAULT CODE

BODY - 3 WAY VALVE

Next: End

BLOCKED CAUSING FAULT CODE

SENSOR - PRESSURE

Next: End

FAILED ELECTRICALLY FAULT CODE

SENSOR - PRESSURE

Next: End

LOW PRESSURE FAULT CODE

SYSTEM PRESSURE

Next: End

BURNER DOES NOT IGNITE

CIRCUIT BOARD

Next: End

BURNER DOES NOT IGNITE

PCB AND HARNESS - WIRING

Next: End

BURNER DOES NOT IGNITE

HARNESS - WIRING (MAIN)

Next: End

BURNER DOES NOT IGNITE

FAN

Next: End

BURNER DOES NOT IGNITE

GAS SECTION

Next: End

BURNER NOISY/ BAFFLES OUT

GAS SECTION

Next: End

DHW COOL RADS COOL

HEAT EXCHANGER - WATER WAYS

Next: End

DHW COOL RADS COOL

CIRCUIT BOARD

Next: End

LOW GAS RATE

CIRCUIT BOARD

Next: End

SHORTED BLOWING FUSES

HARNESS - WIRING (PUMP)

Next: End

INTERNALLY SHORTED

FLOW SWITCH

Next: End

DHW COOL RADS COOL

HEAT EXCHANGER - PLATE TO PLATE

Next: End

DHW RUNS HOT THEN COLD

HEAT EXCHANGER - PLATE TO PLATE

Next: End

FAULT CODE F20

HEAT EXCHANGER - PLATE TO PLATE

Next: End

FAULT CODE F23 - F24

HEAT EXCHANGER - PLATE TO PLATE

Next: End

SELF TEST

CIRCUIT BOARD

Next: End

DHW COOL RADS HEAT

BODY - 3 WAY VALVE

Next: End

SYSTEM PRESSURE RISES

HOSE - STAINLESS STEEL

Next: End

RADS DO NOT HEAT

Next: End

RAD TEMP LOW

CIRCUIT BOARD

Next: End

FAULT CODE F00/F10

FAULT CODE RESET

Next: End

FAULT CODE F00/F10

HARNESS - WIRING (MAIN)

Next: End

FAULT CODE F01/F11

HARNESS - WIRING (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

CH SYMBOL FLASHING AND CH FLOW TEMPERATURE BELOW 8 °C

CHARACTERISTIC TEST FROM INITIAL SETUP AND STANDBY CHECK

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

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

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

Next: p1302

BOILER FLOW TEMPERATURE EXCEEDS 80°C AND BOILER STILL FIRED

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

Next: p1304

FAN DOES NOT RUN - FAULT CODE F32 OCCURS

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: p1360

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: p1641

LOW SYSTEM PRESSURE DISPLAYED

CHARACTERISTIC TEST FROM OBSERVATION DISPLAY

Next: p1941

24 VOLT EXTERNAL CONTROLS FITTED

CHARACTERISTIC TEST FROM OBSERVATION EXTERNAL CONTROLS FITTED

Next: p1846

EBUS CONTROLS FITTED

CHARACTERISTIC TEST FROM OBSERVATION EXTERNAL CONTROLS FITTED

Next: p1854

CH SYMBOL FLASHING AND CH FLOW TEMP ABOVE 8°C

CHARACTERISTIC TEST FROM INITIAL SETUP AND STANDBY CHECK

Next: p2455

PREVIOUSLY UNRECORDED FAULT SHOWN

CHARACTERISTIC TEST FROM OBSERVATION DISPLAY

Next: p2111

FILTER RESTRICTED OR BLOCKED

CHARACTERISTIC TEST FROM INSPECTION DHW FILTER AND FLOW LIMITER

Next: !p2381

FLOW LIMITER RESTRICTED OR BLOCKED

CHARACTERISTIC TEST FROM INSPECTION DHW FILTER AND FLOW LIMITER

Next: !p2383

SENSOR RESTRICTED AND/OR BLOCKED

CHARACTERISTIC TEST FROM INSPECTION SENSOR SYSTEM PRESSURE AND MANIFOLD

Next: !p2563

MANIFOLD RESTRICTED AND/OR BLOCKED

CHARACTERISTIC TEST FROM INSPECTION SENSOR SYSTEM PRESSURE AND MANIFOLD

Next: !p2565

SYSTEM PRESSURE INCORRECT

CHARACTERISTIC TEST FROM OBSERVATION SYSTEM PRESSURE AND INCREASE

Next: !p2581

PRESSURE GAUGE DOES NOT REFLECT INCREASE

CHARACTERISTIC TEST FROM OBSERVATION SYSTEM PRESSURE AND INCREASE

Next: !p2583

SYSTEM PRESSURE INCORRECT

CHARACTERISTIC TEST FROM OBSERVATION SYSTEM PRESSURE AND INCREASE

Next: !p2692

PRESSURE GAUGE DOES NOT REFLECT INCREASE

CHARACTERISTIC TEST FROM OBSERVATION SYSTEM PRESSURE AND INCREASE

Next: !p2693

SENSOR RESTRICTED AND/OR BLOCKED

CHARACTERISTIC TEST FROM INSPECTION SENSOR SYSTEM PRESSURE AND MANIFOLD

Next: !p2695

MANIFOLD RESTRICTED AND/OR BLOCKED

CHARACTERISTIC TEST FROM INSPECTION SENSOR SYSTEM PRESSURE AND MANIFOLD

Next: !p2694

SYSTEM PRESSURE INCORRECT

CHARACTERISTIC TEST FROM OBSERVATION SYSTEM PRESSURE AND INCREASE

Next: !p2629

PRESSURE GAUGE DOES NOT REFLECT INCREASE

CHARACTERISTIC TEST FROM OBSERVATION SYSTEM PRESSURE AND INCREASE

Next: !p2631

SENSOR RESTRICTED AND/OR BLOCKED

CHARACTERISTIC TEST FROM INSPECTION SENSOR SYSTEM PRESSURE AND MANIFOLD

Next: !p2641

MANIFOLD RESTRICTED AND/OR BLOCKED

CHARACTERISTIC TEST FROM INSPECTION SENSOR SYSTEM PRESSURE AND MANIFOLD

Next: !p2643

SYSTEM PRESSURE INCORRECT

CHARACTERISTIC TEST FROM OBSERVATION SYSTEM PRESSURE AND INCREASE

Next: !p2649

PRESSURE GAUGE DOES NOT REFLECT INCREASE

CHARACTERISTIC TEST FROM OBSERVATION SYSTEM PRESSURE AND INCREASE

Next: !p2651

SYSTEM PRESSURE INCORRECT

CHARACTERISTIC TEST FROM OBSERVATION SYSTEM PRESSURE AND INCREASE

Next: !p2653

PRESSURE GAUGE DOES NOT REFLECT INCREASE

CHARACTERISTIC TEST FROM OBSERVATION SYSTEM PRESSURE AND INCREASE

Next: !p2655

SYSTEM PRESSURE INCORRECT

CHARACTERISTIC TEST FROM OBSERVATION SYSTEM PRESSURE AND INCREASE

Next: !p2677

PRESSURE GAUGE DOES NOT REFLECT INCREASE

CHARACTERISTIC TEST FROM OBSERVATION SYSTEM PRESSURE AND INCREASE

Next: !p2679

SYSTEM PRESSURE INCORRECT

CHARACTERISTIC TEST FROM OBSERVATION SYSTEM PRESSURE AND INCREASE

Next: !p2681

PRESSURE GAUGE DOES NOT REFLECT INCREASE

CHARACTERISTIC TEST FROM OBSERVATION SYSTEM PRESSURE AND INCREASE

Next: !p2683

SYSTEM PRESSURE INCORRECT

CHARACTERISTIC TEST FROM OBSERVATION SYSTEM PRESSURE AND INCREASE

Next: !p2685

PRESSURE GAUGE DOES NOT REFLECT INCREASE

CHARACTERISTIC TEST FROM OBSERVATION SYSTEM PRESSURE AND INCREASE

Next: !p2687

SYSTEM PRESSURE INCORRECT

CHARACTERISTIC TEST FROM OBSERVATION SYSTEM PRESSURE AND INCREASE

Next: !p2700

PRESSURE GAUGE DOES NOT REFLECT INCREASE

CHARACTERISTIC TEST FROM OBSERVATION SYSTEM PRESSURE AND INCREASE

Next: !p2691

TEMPERATURE RISE UNSATISFACTORY, RADIATORS HEAT WITH NO CH DEMAND

CHARACTERISTIC TEST FROM DHW OPERATION

Next: p346

TEMPERATURE RISE UNSATISFACTORY, RADIATORS REMAIN COOL

CHARACTERISTIC TEST FROM DHW OPERATION

Next: p1999

DHW TOO HOT

CHARACTERISTIC TEST FROM DHW OPERATION

Next: p2033

DHW RUNS HOT AND COLD

CHARACTERISTIC TEST FROM DHW OPERATION

Next: p2040

BOILER REACHES TEMPERATURE BUT RADIATORS DO NOT HEAT SUFFICIENTLY

CHARACTERISTIC TEST FROM CH OPERATION

Next: p2656

EXCESSIVE SYSTEM PRESSURE AS CH TEMPERATURE RISES

CHARACTERISTIC TEST FROM CH OPERATION

Next: p563

BOILER AND RADIATOR TEMPERATURE LOW

CHARACTERISTIC TEST FROM CH OPERATION

Next: p565

FAN DOES NOT RUN - DHW DEMAND RECOGNISED (TAP SYMBOL FLASHING)

CHARACTERISTIC TEST FROM OBSERVATION FAN RUNS - DHW DEMAND

Next: p99

FAN DOES NOT RUN - DHW DEMAND NOT RECOGNISED (TAP SYMBOL NOT FLASHING)

CHARACTERISTIC TEST FROM OBSERVATION FAN RUNS - DHW DEMAND

Next: p92

21/12/2020 10:58:35 2012_1_50_1 23/02/2021 10:12:10

25/01/2021 11:19:22

Next: End

RESISTANCE THERMISTOR FLOW

REMOVE RED LEADS TO FLOW THERMISTOR

Next: p102, !f103

RESET APPLIANCE - FAULT CODE F23 TO F24

ENSURE NO DEMANDS ARE PRESENT
ENSURE BOILER IS COOL

Next: p1061, f1089

RESISTANCE THERMISTOR FLOW

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

OBSERVATION THERMISTORS CORRECTLY FITTED

Next: p1193, !f1194

RESET APPLIANCE - FAULT CODE F20

ENSURE NO DEMANDS ARE PRESENT
ENSURE BOILER IS COOL

Next: p1206, f1201

RESISTANCE THERMISTOR FLOW

REMOVE RED LEADS TO FLOW THERMISTOR

Next: p1202, !f1203

TEMPERATURE DIFFERENTIAL FLOW AND RETURN - CH

ATTACH TEMPERATURE C

Next: p2798, f2499

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

Next: p2368, !f2369

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 DS NUMBER

Next: p1425, !f2363

RESISTANCE PUMP AND HARNESS (FUSE FURTHER INVESTIGATION)

REMOVE X14 PUMP CONNECTOR FROM THE PCB

Next: p2385, f2786

RESET APPLIANCE - FAULT CODE

ENSURE NO DEMANDS ARE PRESENT

Next: !p1583, f1584

FACTORY RESET - PCB MAIN

ENSURE NO DEMANDS

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

RESISTANCE HARNESS FAN

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

Next: !p1639, !f1640

RESISTANCE HARNESS FAN

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

Next: !p1644, !f1645

ACTIVATE STATUS CODES

STATUS CODES OF T

Next: !p1672, !f1673

OBSERVATION EXTERNAL CONTROLS FITTED

{GAINPCBACS}

Next: p1858, ?1845, ?1853

OBSERVATION INTERNAL TIMER FITTED

Next: p1849, !f1850

OBSERVATION INTERNAL TIMER FITTED

Next: p1861, !f1862

TEMPERATURE DIFFERENTIAL FLOW AND RETURN - CH

ATTACH TEMPERATURE C

Next: p2795, f2511

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 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

VOLTAGE PUMP

REMOVE COVER FROM PUMP ASSEMBLY

Next: !p2338, f2339

RESISTANCE HARNESS PUMP

REMOVE CONNECTOR X14 FROM THE PCB

Next: !p2343, !f2341

VOLTAGE PUMP

REMOVE COVER FROM PUMP ASSEMBLY

Next: !p2345, f2346

RESISTANCE HARNESS PUMP

REMOVE CONNECTOR X14 FROM THE PCB

Next: !p2347, !f2348

VOLTAGE PUMP

REMOVE COVER FROM PUMP ASSEMBLY

Next: !p2350, f2351

RESISTANCE HARNESS PUMP

REMOVE CONNECTOR X14 FROM THE PCB

Next: !p2352, !f2353

VOLTAGE PUMP

REMOVE COVER FROM PUMP ASSEMBLY

Next: !p2355, f2356

RESISTANCE HARNESS PUMP

REMOVE CONNECTOR X14 FROM THE PCB

Next: !p2357, !f2358

VOLTAGE SPARK GENERATOR AT PCB

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

Next: p238, f2098

RESISTANCE HARNESS INTERFACE

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

Next: !p2373, !f2374

DHWTRISE

CHRIS PUT THIS HERE

Next: !p2377, !f2378

RESISTANCE HARNESS DIVERTER VALVE

REMOVE CONNECTORS X15 AND X13 FROM THE PCB AND
ELECTRICAL CONNECTOR TO THE DIVERTER VALVE

Next: p2389, !f2390

RESISTANCE HARNESS SPARK GENERATOR

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

Next: !p2393, !f2394

DISCONNECT EBUS CONTROLS - SELF TEST

REMOVE CONNECTOR X17 FROM THE PCB

Next: !p2458, !f2459

TEMPERATURE DIFFERENTIAL FLOW AND RETURN - CH

ATTACH TEMPERATURE C

Next: p2801, f2502

INSPECTION FILTER PRIMARY FLOW

APPLIANCE PRIMARY SY

Next: !p2500, !f2501

INSPECTION FILTER PRIMARY FLOW

APPLIANCE PRIMARY SY

Next: !p2503, !f2504

INSPECTION FILTER PRIMARY FLOW

APPLIANCE PRIMARY SY

Next: !p2507, !f2508

INSPECTION FILTER PRIMARY FLOW

APPLIANCE PRIMARY SY

Next: !p2509, !f2510

INSPECTION FILTER PRIMARY FLOW

APPLIANCE PRIMARY SY

Next: !p2512, !f2513

RESISTANCE INTEGRAL TIMER (MOTOR)

REMOVE THE WIRES FROM TERMINALS 1 AND 2 ON THE TIMER

Next: !p2540, !f2541

VOLTAGE SENSOR SYSTEM PRESSURE - SEND

Next: p2572, !f2559

OBSERVATION SYSTEM PRESSURE AND INCREASE

Next: p2585, ?2586, ?2588

VOLTAGE SENSOR SYSTEM PRESSURE - SEND

Next: p2592, !f2699

OBSERVATION SYSTEM PRESSURE AND INCREASE

Next: p2627, ?2628, ?2630

VOLTAGE SENSOR SYSTEM PRESSURE - SEND

Next: p2634, !f2635

RESISTANCE GAS VALVE AND HARNESS

{GAINPCBACS}
REMOVE CONNECTOR X20 FROM THE PCB

Next: !p2710, f2711

RESISTANCE GAS VALVE

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

Next: !p2712, !f2713

RESISTANCE GAS VALVE

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

Next: !p2716, !f2717

INSPECTION FLUE ASSEMBLY

Next: p2720, !f2721

TEMPERATURE DIFFERENTIAL FLOW AND RETURN - CH

ATTACH TEMPERATURE C

Next: p2792, f2765

INSPECTION FILTER PRIMARY FLOW

APPLIANCE PRIMARY SY

Next: !p2766, !f2767

INSPECTION CONDENSATE PIPE

Next: p2774, !f2775

RESISTANCE PUMP

GAIN ACCESS TO PUMP TERMINALS
REMOVE WIRING FROM PUMP TERMINALS

Next: !p2787, !f2788

VOLTAGE FLOW SENSOR - SEND (FLOW SENSOR DISCONNECTED)

REMOVE THE CONNECTOR FROM THE DHW FLOW SENSOR AND MAKE SAFE

Next: !p2790, !f2791

VOLTAGE DIVERTER VALVE AT PCB - DHW

{GAINPCBACS}
REMOVE CONNECTOR X15 FROM THE PCB AND MAKE SAFE

Next: p2318, !f2317

OBSERVATION DHW ISOLATION VALVE

Next: p45, !f46

VOLTAGE DIVERTER VALVE AT PCB - CH

{GAINPCBACS}

Next: p2326, !f2325

RESISTANCE THERMISTOR FLOW AND HARNESS

{GAINPCBACS}
REMOVE CONNECTOR X20 FROM THE PCB

Next: p736, f737

RESISTANCE THERMISTOR FLOW

REMOVE RED LEADS TO FLOW THERMISTOR

Next: !p740, !f741

RESISTANCE THERMISTOR RETURN AND HARNESS

REMOVE CONNECTOR X20 FROM THE PCB

Next: p748, f749

RESISTANCE THERMISTOR RETURN

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 FLOW SENSOR - SEND

Next: p95, f2789

VOLTAGE FAN 22 VDC AT PCB

REMOVE ELECTRICAL CONNECTOR FROM FAN AND MAKE SAFE

Next: p106, !f107

RESISTANCE THERMISTOR RETURN

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 AND INCREASE

Next: p1062, ?2684, ?2686

OBSERVATION THERMISTORS CORRECTLY FITTED

Next: p2462, !f1070

OBSERVATION PUMP RUNS

Next: p1097, f2349

PUMP LIMPET

Next: p1077, !f1078

TEMPERATURE DIFFERENTIAL FLOW AND RETURN - DHW

ATTACH TEMPERATURE C

Next: p2488, f2491

RESISTANCE THERMISTOR RETURN

REMOVE BLUE LEADS TO RETURN THERMISTOR

Next: !p1092, !f1093

RESISTANCE THERMISTOR FLOW

REMOVE RED LEADS TO FLOW THERMISTOR

Next: p1111, !f1125

TEMPERATURE FLOW - FROST PROTECTION

ATTACH TEMPERATURE CLAMP TO THE FLOW PIPE AS CLOSE TO THE FLOW THERMISTOR AS POSSIBLE

Next: p12, !f13

RESISTANCE THERMISTOR RETURN

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 THERMISTOR FLOW

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 RED LEADS TO FLOW THERMISTOR

Next: p24, !f15

RESISTANCE THERMISTOR RETURN

REMOVE BLUE LEADS TO RETURN THERMISTOR

Next: !p1204, !f1205

OBSERVATION SYSTEM PRESSURE AND INCREASE

Next: p1240, ?2680, ?2682

OBSERVATION THERMISTORS CORRECTLY FITTED

Next: p1214, !f1215

OBSERVATION PUMP RUNS

Next: p1286, f2344

INSPECTION ISOLATION VALVES FLOW AND RETURN

Next: p1207, !f1268

PUMP LIMPET

Next: p1287, !f1322

TEMPERATURE DIFFERENTIAL FLOW AND RETURN - DHW

ATTACH TEMPERATURE C

Next: p1289, f1313

TEMPERATURE DIFFERENTIAL FLOW AND RETURN - CH

ATTACH TEMPERATURE C

Next: p1323, !f1319

RUN BOILER TO MAX TEMP - FAULT CODE F20

ATTACH TEMPERATURE CLAMP TO PRIMARY HEAT EXCHANGER
FLOW PIPE AS ILLUSTRATED

Next: !p1299, ?1301, ?1303

RESISTANCE THERMISTOR FLOW

REMOVE RED LEADS TO FLOW THERMISTOR

Next: p1305, !f1306

RESISTANCE THERMISTOR FLOW

REMOVE RED LEADS TO FLOW THERMISTOR

Next: p1309, !f1310

RESISTANCE THERMISTOR RETURN

REMOVE BLUE LEADS TO RETURN THERMISTOR

Next: !p1307, !f1308

RESISTANCE THERMISTOR RETURN

REMOVE BLUE LEADS TO RETURN THERMISTOR

Next: !p1311, !f1312

OBSERVATION PUMP OVERRUN TIME

Next: p1297, !f1338

VOLTAGE FAN CONTROL PCB

{GAINPCBACS}
REMOVE ELECTRICAL CONNECTOR FROM FAN AND MAKE SAFE

Next: p1345, !f1355

VOLTAGE FAN 22 VDC AT PCB

REMOVE ELECTRICAL CONNECTOR FROM FAN AND MAKE SAFE

Next: p1351, !f1352

RESISTANCE HARNESS FAN

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

Next: !p1353, !f1354

VOLTAGE FAN HALL SENSOR AT PCB

{GAINPCBACS}

Next: !p1637, f1638

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

ENSURE NO DEMANDS

Next: !p1427, !f1428

INSPECTION DHW FILTER AND FLOW LIMITER

ISOLATE AND DRAIN DHW
REMOVE THE DHW ISOLATION VALVE
REMOVE THE DHW FILTER

Next: !p2384, ?2380, ?2382

VOLTAGE MAINS POWER INPUT AT PCB

{GAINPCBACS}

Next: p2065, f1603

DISCONNECT WATER PRESSURE SENSOR CONNECTOR

REMOVE WATER PRESSURE SENSOR ELECTRICAL 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, f2372

FAULT CODES

Next: !p1633, !f1634

VOLTAGE FAN HALL SENSOR AT PCB

{GAINPCBACS}

Next: !p2125, f1643

BYPASS EXTERNAL CONTROLS - 24V

DISCONNECT 24V EXTER

Next: !p1847, f1848

DISCONNECT INTERNAL PROGRAMMER

GAIN ACCESS TO UPPER REAR OF THE PCB
REMOVE X31 (TIMER) CONNECTOR FROM THE PCB AND MAKE SAFE

Next: p2545, !f1852

DISCONNECT EBUS CONTROLS - CH DEMAND

DISCONNECT EBUS WIRING CONNECTIONS TO CONNECTOR X17 AND MAKE SAFE

Next: !p1855, !f1856

BYPASS EXTERNAL CONTROLS - 240V

REMOVE THE WIRE FROM

Next: !p1859, f1860

DISCONNECT INTERNAL PROGRAMMER

GAIN ACCESS TO UPPER REAR OF THE PCB
REMOVE X31 (TIMER) CONNECTOR FROM THE PCB AND MAKE SAFE

Next: p2542, !f1864

OBSERVATION SYSTEM PRESSURE AND INCREASE

Next: p2555, ?2580, ?2582

OBSERVATION SYSTEM PRESSURE AND INCREASE

Next: p2138, ?2648, ?2650

PUMP LIMPET

Next: p2755, !f2011

OBSERVATION THERMISTORS CORRECTLY FITTED

Next: p2034, !f2035

RESISTANCE THERMISTOR FLOW

REMOVE RED LEADS TO FLOW THERMISTOR

Next: p2036, !f2037

RESISTANCE THERMISTOR RETURN

REMOVE BLUE LEADS TO RETURN THERMISTOR

Next: !p2038, !f2039

OBSERVATION SYSTEM PRESSURE AND INCREASE

Next: p2041, ?2652, ?2654

PUMP LIMPET

Next: p2042, !f2043

OBSERVATION THERMISTORS CORRECTLY FITTED

Next: p2044, !f2045

TEMPERATURE DIFFERENTIAL FLOW AND RETURN - DHW

ATTACH TEMPERATURE C

Next: p2046, f2047

RESISTANCE THERMISTOR FLOW

REMOVE RED LEADS TO FLOW THERMISTOR

Next: p2052, !f2053

RESISTANCE THERMISTOR RETURN

REMOVE BLUE LEADS TO RETURN THERMISTOR

Next: !p2054, !f2055

RESISTANCE FUSE PCB

REMOVE FUSE FROM PCB

Next: p1602, f2091

OBSERVATION THERMISTORS CORRECTLY FITTED

Next: p2104, !f2105

RESISTANCE THERMISTOR FLOW

REMOVE RED LEADS TO FLOW THERMISTOR

Next: p2106, !f2107

RESISTANCE THERMISTOR RETURN

REMOVE BLUE LEADS TO RETURN THERMISTOR

Next: !p2108, !f2109

ACCESS PREVIOUSLY UNRECORDED FAULT

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

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 - DHW

ATTACH A PRESSURE GAUGE TO THE INLET PRESSURE TEST POINT

Next: p2009, !f2162

RESISTANCE THERMISTOR FLOW

REMOVE RED LEADS TO FLOW THERMISTOR

Next: p2179, !f2195

RESISTANCE THERMISTOR RETURN

REMOVE BLUE LEADS TO RETURN THERMISTOR

Next: p788, !f2196

RESISTANCE THERMISTOR RETURN

REMOVE BLUE LEADS TO RETURN THERMISTOR

Next: !p2200, !f2201

OBSERVATION GAS VALVE CLOSURE

Next: !p2232, !f2233

OBSERVATION PCB CONNECTIONS

Next: p2240, !f2241

OBSERVATION DS NUMBER

Next: p2242, !f2362

FACTORY RESET - PCB MAIN

ENSURE NO DEMANDS

Next: !p2246, !f2247

RESISTANCE HARNESS DIVERTER VALVE

REMOVE CONNECTORS X15 AND X13 FROM THE PCB AND
ELECTRICAL CONNECTOR TO THE DIVERTER VALVE

Next: !p2319, !f2320

INSPECTION DIVERTER VALVE BODY

REMOVE THE DIVERTER VALVE MOTOR FROM THE BODY

Next: p2515, !f2329

RESISTANCE HARNESS DIVERTER VALVE

REMOVE CONNECTORS X15 AND X13 FROM THE PCB AND
ELECTRICAL CONNECTOR TO THE DIVERTER VALVE

Next: !p2327, !f2328

INSPECTION CONDENSATE PIPE

Next: p235, !f270

OBSERVATION SPARK AT ELECTRODE

Next: p236, f237

PRESSURE GAS VALVE INLET

ATTACH A PRESSURE GAUGE TO THE INLET PRESSURE TEST POINT

Next: p2707, !f243

INSPECTION SENSOR FLOW - DHW

ISOLATE COLD FEED TO BOILER
DRAIN DHW CIRCUIT
REMOVE DHW HALL SENSOR
REMOVE FLOW TURBINE

Next: !p2366, !f2367

RESISTANCE HARNESS THERMAL FUSE TO MAIN HARNESS

REMOVE CONNECTOR FRO

Next: !p2370, !f2371

OBSERVATION SPARKING HEARD

REMOVE IGNITION LEAD FROM SPARK GENERATOR

Next: !p240, f2114

RESISTANCE DIVERTER VALVE AND HARNESS

REMOVE CONNECTORS X15 AND X13 FROM THE PCB

Next: p2386, f2387

RESISTANCE SPARK GENERATOR AND HARNESS

REMOVE CONNECTOR X21 FROM THE PCB

Next: p2537, f2388

INSPECTION DIVERTER VALVE SPINDLE - WATER LEAK

REMOVE THE DIVERTER VALVE MOTOR FROM THE BODY

Next: !p2391, !f2392

RESISTANCE THERMISTOR RETURN

REMOVE BLUE LEADS TO RETURN THERMISTOR

Next: !p30, !f26

OBSERVATION EXTERNAL CONTROLS FITTED - SELF TEST

{GAINPCBACS}

Next: p2456, f2457

DISCONNECT EXTERNAL CONTROLS

IF MAINS VOLTAGE EXT

Next: !p2460, !f2461

INSPECTION ISOLATION VALVES FLOW AND RETURN

Next: p1069, !f2487

TEMPERATURE DIFFERENTIAL FLOW AND RETURN - CH

ATTACH TEMPERATURE C

Next: !p2489, !f2490

INSPECTION RETURN FILTER

PRIMARY SYSTEM WATER

Next: p570, !f2519

INSPECTION EXTERNAL BYPASS

Next: p566, !f2536

RESISTANCE INTEGRAL TIMER AND HARNESS (MOTOR)

REMOVE CONNECTOR X12 FROM THE PCB

Next: !p2538, f2539

RESISTANCE TIMER (DEMAND)

REMOVE THE WIRES FROM TERMINALS 3 AND 5 ON THE TIMER
TIMER SET TO ON

Next: !p2543, !f2544

RESISTANCE TIMER (DEMAND)

REMOVE THE WIRES FROM TERMINALS 3 AND 5 ON THE TIMER
TIMER SET TO ON

Next: !p2546, !f2547

VOLTAGE PRESSURE SENSOR RETURN

{GAINPCBACS}

Next: !p2556, f2557

INSPECTION SENSOR SYSTEM PRESSURE AND MANIFOLD

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

Next: !p2560, ?2562, ?2564

RESISTANCE HARNESS SENSOR SYSTEM PRESSURE

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

Next: p2558, !f2579

VOLTAGE PRESSURE SENSOR RETURN

{GAINPCBACS}

Next: p2602, f2591

RESISTANCE HARNESS SENSOR SYSTEM PRESSURE

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

Next: p2594, !f2698

INSPECTION SENSOR SYSTEM PRESSURE AND MANIFOLD

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

Next: !p2696, ?2598, ?2600

RESET APPLIANCE - FAULT CODE

ENSURE NO DEMANDS ARE PRESENT

Next: !p2647, !f2697

VOLTAGE PRESSURE SENSOR RETURN

{GAINPCBACS}

Next: p2632, f2633

RESET APPLIANCE - FAULT CODE

ENSURE NO DEMANDS ARE PRESENT

Next: !p2646, !f2645

RESISTANCE HARNESS SENSOR SYSTEM PRESSURE

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

Next: p2636, !f2637

INSPECTION SENSOR SYSTEM PRESSURE AND MANIFOLD

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

Next: !p2638, ?2640, ?2642

OBSERVATION SYSTEM PRESSURE AND INCREASE

Next: p561, ?2676, ?2678

VOLTAGE GAS VALVE AT PCB

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

Next: p2708, f2709

RESISTANCE GAS VALVE AND HARNESS

{GAINPCBACS}
REMOVE CONNECTOR X20 FROM THE PCB

Next: p2714, f2715

PRESSURE FAN - IGNITION

ATTACH FGA TO GAS VALVE PRESSURE OUTLET TEST POINT

Next: p2718, f2719

INSPECTION ELECTRODE IGNITION

REMOVE IGNITION ELECTRODE

Next: !p2728, !f2729

INSPECTION BURNER ASSEMBLY

REMOVE COMBUSTION BLOCK FROM BOILER

Next: p2722, !f2723

INSPECTION AIR INLET PIPE

REMOVE AIR INLET PIPE FROM GAS VALVE

Next: p2724, !f2725

INSPECTION FLUEWAYS HEAT EXCHANGER

Next: !p2726, !f2727

PRESSURE GAS VALVE INLET

ATTACH A PRESSURE GAUGE TO THE INLET PRESSURE TEST POINT

Next: p2737, !f2738

INSPECTION FLUE ASSEMBLY

Next: p2739, !f2740

INSPECTION BURNER ASSEMBLY

REMOVE COMBUSTION BLOCK FROM BOILER

Next: p2741, !f2742

INSPECTION AIR INLET PIPE

REMOVE AIR INLET PIPE FROM GAS VALVE

Next: p2743, !f2744

INSPECTION FLUEWAYS HEAT EXCHANGER

Next: !p2745, !f2746

OBSERVATION THERMISTORS CORRECTLY FITTED

Next: p2756, !f2757

RESISTANCE THERMISTOR FLOW

REMOVE RED LEADS TO FLOW THERMISTOR

Next: p2758, !f2759

RESISTANCE THERMISTOR RETURN

REMOVE BLUE LEADS TO RETURN THERMISTOR

Next: p2760, !f2761

TEMPERATURE DIFFERENTIAL FLOW AND RETURN - DHW

ATTACH TEMPERATURE C

Next: p2762, f2763

OBSERVATION DS NUMBER

Next: p2768, !f2769

TEMPERATURE TAP AND BOILER DISCREPANCY

Next: p2770, !f2771

BOILER OUTPUT

Next: !p2772, f2773

INSPECTION FLUE ASSEMBLY

Next: p2776, !f2777

INSPECTION BURNER ASSEMBLY

REMOVE COMBUSTION BLOCK FROM BOILER

Next: p2778, !f2779

INSPECTION AIR INLET PIPE

REMOVE AIR INLET PIPE FROM GAS VALVE

Next: p2780, !f2781

INSPECTION FAN

Next: p2782, !f2783

INSPECTION FLUEWAYS HEAT EXCHANGER

Next: !p2784, !f2785

INSPECTION CONDENSATE PIPE

Next: p2736, !f281

INSPECTION INTERNAL BYPASS

APPLIANCE DRAINED AN

Next: !p2793, !f2804

INSPECTION INTERNAL BYPASS

APPLIANCE DRAINED AN

Next: !p2796, !f2805

INSPECTION INTERNAL BYPASS

APPLIANCE DRAINED AN

Next: !p2799, !f2806

INSPECTION INTERNAL BYPASS

APPLIANCE DRAINED AN

Next: !p2802, !f2807

OBSERVATION POSITION DIVERTER VALVE - DHW

REMOVE DIVERTER VALVE HEAD FROM THE BODY
AND POSITION IT SO THE SPINDLE IS VISIBLE

Next: !p368, f353

OBSERVATION COLD WATER SUPPLY

Next: p47, !f48

INSPECTION SENSOR FLOW - DHW

ISOLATE COLD FEED TO BOILER
DRAIN DHW CIRCUIT
REMOVE DHW HALL SENSOR
REMOVE FLOW TURBINE

Next: p1590, !f2309

INSPECTION ISOLATION VALVES FLOW AND RETURN

Next: p2520, !f567

INSPECTION EXPANSION VESSEL PRESSURE

DISCHARGE PRIMARY SYSTEM WATER

Next: !p581, !f582

OBSERVATION MAXIMUM HEATING POWER

NO DEMANDS

Next: p583, !f2359

PUMP LIMPET

Next: p568, !f569

OBSERVATION POSITION DIVERTER VALVE - CH

REMOVE DIVERTER VALVE HEAD FROM THE BODY

Next: p2321, f572

TEMPERATURE DIFFERENTIAL - INTERNAL BYPASS

ATTACH TEMPERATURE C

Next: !p593, !f2514

RESISTANCE THERMISTOR FLOW

REMOVE RED LEADS TO FLOW THERMISTOR

Next: p599, !f586

RESISTANCE THERMISTOR RETURN

REMOVE BLUE LEADS TO RETURN THERMISTOR

Next: !p600, !f601

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 AND INCREASE

Next: p786, ?2688, ?2690

OBSERVATION THERMISTORS CORRECTLY FITTED

Next: p2163, !f789

OBSERVATION PUMP RUNS

Next: p790, f2354

PUMP LIMPET

Next: p797, !f1377

CH OPERATION - FAULT CODE F83

Next: p799, f2505

DHW OPERATION - FAULT CODE F83

Next: !p807, f2506

RESISTANCE THERMISTOR FLOW

REMOVE RED LEADS TO FLOW THERMISTOR

Next: p842, !f843

RESISTANCE THERMISTOR RETURN

REMOVE BLUE LEADS TO RETURN THERMISTOR

Next: p846, !f845

RESET APPLIANCE - FAULT CODE

ENSURE NO DEMANDS ARE PRESENT

Next: p847, !f848

DHW OPERATION - FAULT CODE

Next: !p849, !f850

VOLTAGE FLOW SENSOR DHW - RETURN

{GAINPCBACS}
RUN HOT WATER TAP AT 3 LITRES PER MINUTE

Next: p2103, f94

RESISTANCE HARNESS FLOW SENSOR

REMOVE ELECTRICAL CONNECTORS X2 FROM THE PCB AND
TO THE DHW FLOW SENSOR

Next: p2365, !f98

VOLTAGE FAN CONTROL PCB

{GAINPCBACS}
REMOVE ELECTRICAL CONNECTOR FROM FAN AND MAKE SAFE

Next: p100, f101

System Information

  • Total Tests: 655
  • 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