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:

Z REDIRECT

Next: &18, *

APPLIANCE APPEARS SATISFACTORY

Next: nff

DHW OPERATION

Next: &1081, ?347, ?349, ?351, ?353

OBSERVATION BURNER IGNITION & ESTABLISH

Next: &357, ?155, ?157, ?159

OBSERVATION FAN RUNS

ENSURE BOILER IS COOL

Next: &10, f150

DHW FLOW RATE

Next: &161, f104

BOILER CONTROLS SET UP

Next: &41, !f24

OBSERVATION BOILER SELF CHECK

BOILER ON/OFF SWITCH SET TO ON POSITION
ENSURE NO DEMANDS

Next: &14, ?27, ?29, ?43

INFORMATION CASE REMOVAL

Next: &15, !f19

TYPE OF DIAGNOSTIC PROCEDURE

PLEASE SELECT FROM O

Next: &13, !f42

OBSERVATION PUMP RUNS

Next: &11, f162

PRESSURE GAS INLET (DHW DEMAND)

ATTACH U GAUGE TO GAS INLET PRESSURE TEST POINT

Next: &9, !f358

DISPLAY CODE 52 5A

NOT USED

Next: &nff, f852

DISPLAY CODE 51 59

NOT USED

Next: &nff, f517

DISPLAY CODE 30 38

NOT USED

Next: &nff, f510

DISPLAY CODE 10 18

NOT USED

Next: &nff, f657

DISPLAY CODE F9

NOT USED

Next: &nff, f687

DISPLAY CODE F8

Next: &nff, f1000

DISPLAY CODE F3

NOT USED

Next: &nff, f983

DISPLAY CODE F2

NOT USED

Next: &nff, f925

DISPLAY CODE F1

NOT USED

Next: &nff, f891

DISPLAY CODE F0

Next: &nff, f871

DISPLAY CODE E5

NOT USED

Next: &nff, f866

DISPLAY CODE E3

NOT USED

Next: &nff, f648

DISPLAY CODE B0 B8

NOT USED

Next: &nff, f616

DISPLAY CODE TRIANGLE

NOT USED

Next: &nff, f997

DISPLAY CODE FD FF

NOT USED

Next: &nff, f988

DISPLAY CODE A9

NOT USED

Next: &nff, f862

FUSE FURTHER INVESTIGATION

NOT USED

Next: &nff, f1006

CH OPERATION

Next: &nff, ?1082, ?1084, ?1086, ?1088

DISPLAY DOES NOT OPERATE 2

UNIT - PROGRAMMING

Next: End

FAULT CODE F8

GAS VALVE

Next: End

FUSE FURTHER INVESTIGATION

FAN - CENTRIFUGAL

Next: End

FUSE FURTHER INVESTIGATION

MOTOR - CIRCULATION PUMP

Next: End

DISPLAY DOES NOT OPERATE

FUSE (FUSED SPUR)

Next: End

DISPLAY DOES NOT OPERATE

HARNESS - CABLE - CONNECTING X21/GFA/PROGRAMMING

Next: End

FAULT CODE F9 FA FC

HARNESS - CABLE 100/35/54/ION

Next: End

FUSE FURTHER INVESTIGATION

GAS VALVE

Next: End

DHW FLOW RATE

ISOLATION VALVE DHW

Next: End

FUSE FURTHER INVESTIGATION

TRANSFORMER - IGNITION

Next: End

FAULT CODE F8

ELECTRODE - IONISATION / IGNITION

Next: End

FAULT CODE F8

UNIT - BURNER CONTROL

Next: End

DHW FLOW RATE

COLD WATER SUPPLY

Next: End

EXCESSIVE SYSTEM PRESSURE

EXPANSION VESSEL

Next: End

BOILER TEMP LOW RADS COOL

BOILER SETUP

Next: End

BOILER TEMP LOW RADS COOL

SYSTEM PRESSURE

Next: End

BOILER TEMP LOW RADS COOL

MOTOR - CIRCULATION PUMP

Next: End

BOILER TEMP LOW RADS COOL

SENSOR - TEMPERATURE PRIMARY

Next: End

BOILER @ TEMP RADS COOL

SYSTEM PRESSURE

Next: End

BOILER @ TEMP RADS COOL

SERVICE VALVES

Next: End

BOILER @ TEMP RADS COOL 3

CASING RETURN

Next: End

BOILER @ TEMP RADS COOL

MOTOR - CIRCULATION PUMP

Next: End

BOILER @ TEMP RADS COOL

CASING RETURN - BYPASS

Next: End

CH DOES NOT RESPOND

INTERNAL TIMER/PROGRAMMER

Next: End

CH DOES NOT RESPOND 4

UNIT - BURNER CONTROL

Next: End

CH DOES NOT RESPOND2

HARNESS - CABLE - CONNECTING X21/GFA/PROGRAMMING

Next: End

CH DOES NOT RESPOND

UNIT - BURNER CONTROL

Next: End

CH DOES NOT RESPOND

HARNESS - CABLE - CONNECTING X21/GFA/PROGRAMMING

Next: End

BURNER DOES NOT ESTAB

HARNESS - CABLE 100/35/54/ION

Next: End

DHW COOL RADS COOL

PLUMBING ISSUE

Next: End

DHW COOL RADS COOL

PLATE - HEAT EXCHANGER

Next: End

DHW COOL RADS COOL

Z REDIRECT

Next: End

DHW COOL RADS HEAT

MOTOR - STEPPER

Next: End

BOILER @ TEMP RADS COOL 2

MOTOR - STEPPER

Next: End

FAULT CODE F1 2

UNIT - BURNER CONTROL

Next: End

DHW COOL RADS COOL

FLUE

Next: End

DHW COOL RADS COOL 2

FAN - CENTRIFUGAL

Next: End

FAN DOES NOT RUN

SENSOR - TEMPERATURE PRIMARY

Next: End

FAN DOES NOT RUN

SENSOR - TEMPERATURE DHW

Next: End

PUMP DOES NOT RUN

UNIT - BURNER CONTROL

Next: End

PUMP DOES NOT RUN

HARNESS - CABLE X1/X17/STEPPER MOTOR

Next: End

PUMP DOES NOT RUN 3

UNIT - BURNER CONTROL

Next: End

CASE REMOVAL

Z REDIRECT

Next: End

BURNER DOES NOT IGNITE

ELECTRODE - IONISATION / IGNITION

Next: End

BURNER DOES NOT IGNITE

GAS VALVE / BURNER CONTROL UNIT

Next: End

BURNER DOES NOT IGNITE 3

GAS VALVE

Next: End

BURNER DOES NOT IGNITE 2

UNIT - BURNER CONTROL

Next: End

USER CONTROLS

Z REDIRECT

Next: End

BURNER DOES NOT IGNITE

FLUE

Next: End

BURNER DOES NOT IGNITE 2

HARNESS - CABLE 100/35/54/ION

Next: End

BURNER DOES NOT ESTABLISH

GAS INLET PRESSURE

Next: End

BURNER DOES NOT ESTABLISH

ELECTRODE - IONISATION / IGNITION

Next: End

BURNER DOES NOT ESTABLISH

UNIT - BURNER CONTROL

Next: End

BURNER DOES NOT ESTABLISH 2

ELECTRODE - IONISATION / IGNITION

Next: End

BURNER BAFFLES OR NOISY

GAS INLET PRESSURE

Next: End

BURNER BAFFLES OR NOISY

FLUE

Next: End

GAS INLET DHW DEMAMD

GAS INLET PRESSURE

Next: End

DHW COOL RADS COOL

SYSTEM PRESSURE

Next: End

DHW COOL RADS COOL

SENSOR - TEMPERATURE DHW

Next: End

DHW COOL RADS COOL

SENSOR - TEMPERATURE PRIMARY

Next: End

DHW COOL RADS COOL

MOTOR - CIRCULATION PUMP

Next: End

TYPE OF DIAGNOSTIC PROCEDURE

Z REDIRECT

Next: End

FAULT CODE 2

Z REDIRECT

Next: End

FAULT CODES 2

Z REDIRECT

Next: End

FAULT CODE 30

UNIT - BURNER CONTROL

Next: End

FAULT CODE 30

SENSOR - TEMPERATURE PRIMARY

Next: End

FAULT CODE 51

SENSOR - TEMPERATURE DHW

Next: End

FAULT CODE 51

UNIT - BURNER CONTROL

Next: End

SELF CHECK

INTERNAL TIMER/PROGRAMMER

Next: End

SELF CHECK

SENSOR - TEMPERATURE PRIMARY

Next: End

FAULT CODE 80

SENSOR - TEMPERATURE - FLUE GAS

Next: End

FAULT CODE B0

UNIT - BURNER CONTROL

Next: End

SELF CHECK

DOMESTIC PLUMBING

Next: End

FAULT CODE E3

THERMAL SWITCH

Next: End

FAULT CODE E3

UNIT - BURNER CONTROL

Next: End

FAULT CODE 10/18

UNIT - BURNER CONTROL

Next: End

SELF CHECK

SENSOR FLOW

Next: End

FAULT CODE 10/18 2

UNIT - BURNER CONTROL

Next: End

FAULT CODE F9 FA FC

UNIT - BURNER CONTROL

Next: End

FAULT CODE F9 FA FC

HARNESS - CABLE X1/X17/STEPPER MOTOR

Next: End

FAULT CODE F9 FA FC 2

UNIT - BURNER CONTROL

Next: End

DHW TOO HOT

SENSOR - TEMPERATURE DHW

Next: End

DISPLAY DOES NOT OPERATE

FUSE 2.5A (SLOW) 250V

Next: End

DHW COOL RADS HEAT 2

CASING RETURN

Next: End

DHW HOT COOL

SYSTEM PRESSURE

Next: End

DHW HOT COOL

SENSOR - TEMPERATURE DHW

Next: End

DHW HOT COOL

SENSOR - TEMPERATURE PRIMARY

Next: End

DISPLAY DOES NOT OPERATE 2

HARNESS - CABLE - CONNECTING X21/GFA/PROGRAMMING

Next: End

DHW HOT COOL

MOTOR - CIRCULATION PUMP

Next: End

DHW HOT COOL

PLATE - HEAT EXCHANGER

Next: End

FAULT CODE 52 5A

HARNESS - CABLE X1/X17/STEPPER MOTOR

Next: End

FAULT CODE 52 5A

UNIT - BURNER CONTROL

Next: End

FAULT CODE 52 5A 2

SENSOR FLOW

Next: End

FAULT CODE A9

UNIT - BURNER CONTROL

Next: End

FAULT CODE E5

ELECTRODE - IONISATION / IGNITION

Next: End

FAULT CODE E5

UNIT - BURNER CONTROL

Next: End

FAULT CODE F0

UNIT - BURNER CONTROL

Next: End

FAULT CODE F1

UNIT - BURNER CONTROL

Next: End

FAULT CODE F1

SYSTEM PRESSURE

Next: End

FAULT CODE F1

MOTOR - CIRCULATION PUMP

Next: End

FAULT CODE F1

SENSOR - TEMPERATURE PRIMARY

Next: End

FAULT CODE F1

HEAT EXCHANGER

Next: End

FAULT CODE F1

SENSOR - TEMPERATURE - FLUE GAS

Next: End

FAULT CODE E3

SYSTEM PRESSURE

Next: End

FAULT CODE E3 2

UNIT - BURNER CONTROL

Next: End

FAULT CODE E3 2

MOTOR - CIRCULATION PUMP

Next: End

FAULT CODE F2 2

THERMAL SWITCH

Next: End

FAULT CODE E3

SENSOR - TEMPERATURE PRIMARY

Next: End

FAULT CODE E3

SENSOR - TEMPERATURE DHW

Next: End

FAULT CODE F2

PLATE - HEAT EXCHANGER

Next: End

FAULT CODE E3 3

UNIT - BURNER CONTROL

Next: End

FAULT CODE F3

ELECTRODE - IONISATION / IGNITION

Next: End

FAULT CODE F3

UNIT - BURNER CONTROL

Next: End

FAULT CODE FD FF

ELECTRODE - IONISATION / IGNITION

Next: End

FAULT CODE FD FF

UNIT - BURNER CONTROL

Next: End

FAULT CODE FD FF

EMC FIELD

Next: End

FAULT CODE TRIANGLE

UNIT - BURNER CONTROL

Next: End

FUSE FURTHER INVESTIGATION

CABLE 20 - HEATING CIRCUIT PUMP

Next: End

DISPLAY DOES NOT OPERATE

Next: End

FUSE FURTHER INVESTIGATION FUSED SPUR

Z REDIRECT

Next: End

DISPLAY DOES NOT OPERATE 3

UNIT - BURNER CONTROL

Next: End

FUSE FURTHER INVESTIGATION

HARNESS - CABLE 100/35/54/ION

Next: End

FUSE FURTHER INVESTIGATION 2

HARNESS - CABLE 100/35/54/ION

Next: End

FUSE FURTHER INVESTIGATION

BURNER CONTROL UNIT - FUSE BLOWN

Next: End

FUSE FURTHER INVESTIGATION 3

HARNESS - CABLE 100/35/54/ION

Next: End

FAULT CODE F8

FAULT CODE RESET - RETEST BOILER OPERATION

Next: End

FAULT CODE F8 2

GAS VALVE

Next: End

FAULT CDOE F8

FAULT CODE RESET - RETEST BOILER OPERATION

Next: End

PUMP DOES NOT RUN

MOTOR - CIRCULATION PUMP

Next: End

FAULT CODE E3

MOTOR - CIRCULATION PUMP

Next: End

EXCESSIVE PRESSURE

LINE G3/8IN - CONNECTION

Next: End

DHW FLOW RATE

PLATE - HEAT EXCHANGER

Next: End

BOILER @ TEMP RADS COOL

UNIT - BURNER CONTROL

Next: End

BOILER @ TEMP RADS COOL 2

UNIT - BURNER CONTROL

Next: End

BOILER @ TEMP RADS COOL

MOTOR - STEPPER

Next: End

BOILER @ TEMP RADS COOL

Next: End

CH DOES NOT RESPOND 3

UNIT - BURNER CONTROL

Next: End

CH DOES NOT RESPOND2

Next: End

CH DOES NOT RESPOND2

UNIT - PROGRAMMING

Next: End

CH DOES NOT RESPOND 2

UNIT - BURNER CONTROL

Next: End

CH DOES NOT RESPOND

Next: End

CH DOES NOT RESPOND

UNIT - PROGRAMMING

Next: End

BURNER DOES NOT ESTABLISH

TRANSFORMER - IGNITION

Next: End

DHW FLOW RATE

SENSOR FLOW

Next: End

DHW COOL RADS COOL

UNIT - BURNER CONTROL

Next: End

DHW COOL RADS COOL 2

Z REDIRECT

Next: End

DHW FLOW RATE

FLOW LIMITER

Next: End

BOILER TEMP LOW RADS COOL

UNIT - BURNER CONTROL

Next: End

FAULT CODE F2

FAULT CODE F2 - OVERHEAT

Next: End

BURNER BAFFLES OR NOISY

SYPHON - SPLASH

Next: End

BURNER BAFFLES OR NOISY

CONDENSATE PIPEWORK

Next: End

BURNER DOES NOT IGNITE

SYPHON - SPLASH

Next: End

BURNER DOES NOT IGNITE

CONDENSATE PIPEWORK

Next: End

BURNER DOES NOT ESTABLISH

SYPHON - SPLASH

Next: End

BURNER DOES NOT IGNITE 2

CONDENSATE PIPEWORK

Next: End

DHW COOL

HARNESS - CABLE X1/X17/STEPPER MOTOR

Next: End

RADS DO NOT HEAT

HARNESS - CABLE X1/X17/STEPPER MOTOR

Next: End

BURNER DOES NOT IGNITE 2

EXTENSION - VENTURI

Next: End

BURNER DOES NOT IGNITE 2

FAN - CENTRIFUGAL

Next: End

FAULT CODE F1 2

MOTOR - CIRCULATION PUMP

Next: End

DHW COOL RADS COOL

EXTENSION - VENTURI

Next: End

DHW COOL RADS COOL

FAN - CENTRIFUGAL

Next: End

DHW COOL RADS COOL

CYLINDER BURNER GAUZE ASSEMBLY

Next: End

DHW COOL RADS COOL

HEAT EXCHANGER

Next: End

DHW COOL RADS COOL 2

UNIT - BURNER CONTROL

Next: End

FAN DOES NOT RUN

UNIT - BURNER CONTROL

Next: End

PUMP DOES NOT RUN 2

UNIT - BURNER CONTROL

Next: End

PUMP DOES NOT RUN

SENSOR FLOW

Next: End

BURNER DOES NOT IGNITE

GAS VALVE

Next: End

BURNER DOES NOT IGNITE

UNIT - BURNER CONTROL

Next: End

BURNER DOES NOT IGNITE 2

GAS VALVE

Next: End

BURNER DOES NOT IGNITE 2

CYLINDER BURNER GAUZE ASSEMBLY

Next: End

BURNER DOES NOT IGNITE 2

HEAT EXCHANGER

Next: End

BURNER DOES NOT IGNITE

CYLINDER BURNER GAUZE ASSEMBLY

Next: End

BURNER DOES NOT IGNITE

HEAT EXCHANGER

Next: End

BURNER DOES NOT IGNITE

TRANSFORMER - IGNITION

Next: End

BURNER DOES NOT IGNITE

EXTENSION - VENTURI

Next: End

BURNER DOES NOT IGNITE

FAN - CENTRIFUGAL

Next: End

BURNER DOES NOT IGNITE

GAS INLET PRESSURE

Next: End

BURNER DOES NOT IGNITE

HARNESS - CABLE 100/35/54/ION

Next: End

BURNER DOES NOT IGNITE 2

ELECTRODE - IONISATION / IGNITION

Next: End

BURNER DOES NOT IGNITE

HARNESS - CABLE 100/35/54/ION / BURNER CONTROL UNIT

Next: End

BURNER DOES NOT ESTABLISH

CYLINDER BURNER GAUZE ASSEMBLY

Next: End

BURNER DOES NOT ESTABLISH

HEAT EXCHANGER

Next: End

BURNER DOES NOT IGNITE 3

ELECTRODE - IONISATION / IGNITION

Next: End

BURNER DOES NOT ESTABLISH 2

TRANSFORMER - IGNITION

Next: End

BURNER DOES NOT ESTABLISH 2

UNIT - BURNER CONTROL

Next: End

BURNER BAFFLES OR NOISY

EXTENSION - VENTURI

Next: End

BURNER BAFFLES OR NOISY

FAN - CENTRIFUGAL

Next: End

BURNER BAFFLES OR NOISY

GAS VALVE

Next: End

BURNER BAFFLES OR NOISY

CYLINDER BURNER GAUZE ASSEMBLY

Next: End

BURNER BAFFLES OR NOISY

HEAT EXCHANGER

Next: End

FAULT CODE

Z REDIRECT

Next: End

FAULT CODE 30

FAULT CODE RESET - RETEST BOILER OPERATION

Next: End

FAULT CODE 30

HARNESS - CABLE X1/X17/STEPPER MOTOR

Next: End

FAULT CODE 51

HARNESS - CABLE X1/X17/STEPPER MOTOR

Next: End

FAULT CODE 51

FAULT CODE RESET - RETEST BOILER OPERATION

Next: End

SELF CHECK

Next: End

SELF CHECK 2

UNIT - BURNER CONTROL

Next: End

BOILER SELF CHECK

FROST PROTECTION NORMAL OPERATION

Next: End

SELF CHECK

UNIT - BURNER CONTROL

Next: End

FAULT CODE B0

HARNESS - CABLE X1/X17/STEPPER MOTOR

Next: End

FAULT CODE B0

FAULT CODE RESET - RETEST BOILER OPERATION

Next: End

FAULT CODE E3

HARNESS - CABLE X1/X17/STEPPER MOTOR

Next: End

FAULT CODE E3

FAULT CODE RESET - RETEST BOILER OPERATION

Next: End

SELF CHECK 3

UNIT - BURNER CONTROL

Next: End

FAULT CODE 10 OR 18

FAULT CODE RESET - RETEST BOILER OPERATION

Next: End

FAULT CODE 10 OR 18 2

FAULT CODE RESET - RETEST BOILER OPERATION

Next: End

FAULT CODE F9 FA FC

FAN - CENTRIFUGAL

Next: End

DISPLAY DOES NOT OPERATE 2

UNIT - BURNER CONTROL

Next: End

DHW TOO HOT

UNIT - BURNER CONTROL

Next: End

FUSE FURTHER INVESTIGATION

Z REDIRECT

Next: End

DHW FLOW RATE

CASING RETURN

Next: End

DHW COOL RADS HEAT 2

UNIT - BURNER CONTROL

Next: End

DHW COOL RADS HEAT

UNIT - BURNER CONTROL

Next: End

DHW COOL RADS HEAT 2

MOTOR - STEPPER

Next: End

DHW COOL RADS HEAT

CASING RETURN

Next: End

DISPLAY DOES NOT OPERATE

UNIT - BURNER CONTROL

Next: End

DHW HOT COOL

UNIT - BURNER CONTROL

Next: End

FAULT CODE 10 OR 18

OUTDOOR SENSOR

Next: End

FAULT CODE 52 5A

SENSOR FLOW

Next: End

FAULT CODE 52 5A

FAULT CODE RESET - RETEST BOILER OPERATION

Next: End

FAULT CODE A9

FAULT CODE RESET - RETEST BOILER OPERATION

Next: End

FAULT CODE E5

FAULT CODE RESET - RETEST BOILER OPERATION

Next: End

FAULT CODE F0

FAULT CODE RESET - RETEST BOILER OPERATION

Next: End

FAULT CODE F1

BOILER RESET - FAULT CODE F1

Next: End

DISPLAY DOES NOT OPERATE

UNIT - PROGRAMMING

Next: End

FAULT CODE F2

HARNESS - CABLE X1/X17/STEPPER MOTOR

Next: End

FAULT CODE F2

THERMAL SWITCH

Next: End

FAULT CODE F2

UNIT - BURNER CONTROL

Next: End

FAULT CODE F3

FAULT CODE RESET - RETEST BOILER OPERATION

Next: End

DISPLAY FURTHER INVESTIGATION

Z REDIRECT

Next: End

FAULT CODE FD FF

FAULT CODE RESET - RETEST BOILER OPERATION

Next: End

FAULT CODE TRIANGLE

FAULT CODE RESET - RETEST BOILER OPERATION

Next: End

DELAY IN RETURNING TO STANDING PRESSURE

CHARACTERISTIC TEST FROM PRESSURE STANDING RETURN

Next: !p1067

BOILER DOES NOT RESET - FAULT CODE REMAINS THE SAME

CHARACTERISTIC TEST FROM PRESSURE STANDING RETURN

Next: p1069

BOILER DOES NOT RESPOND TO CH DEMAND

CHARACTERISTIC TEST FROM CH OPERATION

Next: p1083

BOILER REACHES TEMPERATURE - RADIATORS DO NOT HEAT OR ONLY GET WARM

CHARACTERISTIC TEST FROM CH OPERATION

Next: p1085

BOILER TEMPERATURE AND SYSTEM TEMPERATURE LOW - BOILER REMAINS LIT

CHARACTERISTIC TEST FROM CH OPERATION

Next: p1087

EXCESSIVE SYSTEM PRESSURE RISE AS SYSTEM HEATS

CHARACTERISTIC TEST FROM CH OPERATION

Next: p1089

VOLTAGE NOT AS EXPECTED ON TEST 1.

CHARACTERISTIC TEST FROM VOLTAGE DIVERTER VALVE

Next: p1131

VOLTAGES NOT AS EXPECTED ON TESTS 2/3.

CHARACTERISTIC TEST FROM VOLTAGE DIVERTER VALVE

Next: !p1133

1 RETURN CASING BLOCKED OR RESTRICTED

CHARACTERISTIC TEST FROM INSPECTION DHW FLOW COMPONENTS

Next: !p753

2 FLOW SENSOR BLOCKED OR RESTRICTED

CHARACTERISTIC TEST FROM INSPECTION DHW FLOW COMPONENTS

Next: !p119

3 FLOW LIMITER BLOCKED OR RESTRICTED

CHARACTERISTIC TEST FROM INSPECTION DHW FLOW COMPONENTS

Next: !p121

GAS RATE INCORRECT @ 100% OUTPUT

Next: p1280

HOW TO SET BOILER TO 100% OUTPUT

CHARACTERISTIC TEST FROM BOILER OUTPUT

Next: p1204

SYPHON BLOCKED, RESTRICTED AND/OR CONDENSATE BACKED UP

CHARACTERISTIC TEST FROM INSPECTION CONDENSATE PIPE

Next: !p1232

CONDENSATE PIPEWORK BLOCKED, RESTRICTED

Next: !p1234

SYPHON BLOCKED, RESTRICTED AND/OR CONDENSATE BACKED UP

CHARACTERISTIC TEST FROM INSPECTION CONDENSATE PIPE

Next: !p1238

CONDENSATE PIPEWORK BLOCKED, RESTRICTED

Next: !p1240

SYPHON BLOCKED, RESTRICTED AND/OR CONDENSATE BACKED UP

CHARACTERISTIC TEST FROM INSPECTION CONDENSATE PIPE

Next: !p1243

CONDENSATE PIPEWORK BLOCKED, RESTRICTED

Next: !p1245

AIR INTAKE RESTRICTED AND/OR BLOCKED

CHARACTERISTIC TEST FROM INSPECTION AIR INTAKE AND VENTURI

Next: !p1265

VENTURI RESTRICTED AND/OR BLOCKED

CHARACTERISTIC TEST FROM INSPECTION AIR INTAKE AND VENTURI

Next: !p1267

AIR INTAKE RESTRICTED AND/OR BLOCKED

CHARACTERISTIC TEST FROM INSPECTION AIR INTAKE AND VENTURI

Next: !p1286

VENTURI RESTRICTED AND/OR BLOCKED

CHARACTERISTIC TEST FROM INSPECTION AIR INTAKE AND VENTURI

Next: !p1288

BURNER RESTRICTED AND/OR DAMAGED

CHARACTERISTIC TEST FROM INSPECTION BURNER / HEAT EXCHANGER FLUEWAYS / ELECTRODE

Next: !p1291

HEAT EXCHANGER FLUEWAYS RESTRICTED AND/OR DAMAGED

CHARACTERISTIC TEST FROM INSPECTION BURNER / HEAT EXCHANGER FLUEWAYS / ELECTRODE

Next: !p1293

BURNER DOES NOT IGNITE

CHARACTERISTIC TEST FROM OBSERVATION BURNER IGNITION & ESTABLISH

Next: p185

BURNER IGNITES BUT DOES NOT ESTABLISH

CHARACTERISTIC TEST FROM OBSERVATION BURNER IGNITION & ESTABLISH

Next: p158

BURNER IGNITES BUT BAFFLES OR IS NOISY

CHARACTERISTIC TEST FROM OBSERVATION BURNER IGNITION & ESTABLISH

Next: p160

NO PRESSURE DROP OBSERVED

CHARACTERISTIC TEST FROM PRESSURE GAS INLET DROP

Next: p210

PRESSURE DROPS BELOW 17.4 MB (N.G) OR 25 MB (L.P.G)

CHARACTERISTIC TEST FROM PRESSURE GAS INLET DROP

Next: !p245

BURNER RESTRICTED AND/OR DAMAGED

CHARACTERISTIC TEST FROM INSPECTION BURNER / HEAT EXCHANGER FLUEWAYS / ELECTRODE

Next: !p220

HEAT EXCHANGER FLUEWAYS RESTRICTED AND/OR DAMAGED

CHARACTERISTIC TEST FROM INSPECTION BURNER / HEAT EXCHANGER FLUEWAYS / ELECTRODE

Next: !p222

BURNER RESTRICTED AND/OR DAMAGED

CHARACTERISTIC TEST FROM INSPECTION BURNER / HEAT EXCHANGER FLUEWAYS / ELECTRODE

Next: !p224

HEAT EXCHANGER FLUEWAYS RESTRICTED AND/OR DAMAGED

CHARACTERISTIC TEST FROM INSPECTION BURNER / HEAT EXCHANGER FLUEWAYS / ELECTRODE

Next: !p226

AIR INTAKE RESTRICTED AND/OR BLOCKED

CHARACTERISTIC TEST FROM INSPECTION AIR INTAKE AND VENTURI

Next: !p241

VENTURI RESTRICTED AND/OR BLOCKED

CHARACTERISTIC TEST FROM INSPECTION AIR INTAKE AND VENTURI

Next: !p243

ELECTRODE GAP TO BURNER SURFACE INCORRECT

CHARACTERISTIC TEST FROM INSPECTION BURNER / HEAT EXCHANGER FLUEWAYS / ELECTRODE

Next: !p251

PUMP RUNS CONTINUOUSLY OR BOILER ATTEMPS TO FIRE AFTER SELF CHECK COMPLETE

CHARACTERISTIC TEST FROM OBSERVATION BOILER SELF CHECK

Next: p51

FAULT CODE DISPLAYED

CHARACTERISTIC TEST FROM OBSERVATION BOILER SELF CHECK

Next: p45

BURNER RESTRICTED AND/OR DAMAGED

CHARACTERISTIC TEST FROM INSPECTION BURNER / HEAT EXCHANGER FLUEWAYS / ELECTRODE

Next: !p318

HEAT EXCHANGER FLUEWAYS RESTRICTED AND/OR DAMAGED

CHARACTERISTIC TEST FROM INSPECTION BURNER / HEAT EXCHANGER FLUEWAYS / ELECTRODE

Next: !p320

ELECTRODE GAP TO BURNER SURFACE INCORRECT

CHARACTERISTIC TEST FROM INSPECTION BURNER / HEAT EXCHANGER FLUEWAYS / ELECTRODE

Next: !p322

AIR INTAKE RESTRICTED AND/OR BLOCKED

CHARACTERISTIC TEST FROM INSPECTION AIR INTAKE AND VENTURI

Next: !p338

VENTURI RESTRICTED AND/OR BLOCKED

CHARACTERISTIC TEST FROM INSPECTION AIR INTAKE AND VENTURI

Next: !p341

BURNER RESTRICTED AND/OR DAMAGED

CHARACTERISTIC TEST FROM INSPECTION BURNER / HEAT EXCHANGER FLUEWAYS / ELECTRODE

Next: !p344

HEAT EXCHANGER FLUEWAYS RESTRICTED AND/OR DAMAGED

CHARACTERISTIC TEST FROM INSPECTION BURNER / HEAT EXCHANGER FLUEWAYS / ELECTRODE

Next: !p346

DHW COOL - RADIATORS REMAIN COOL OR DO NOT INCREASE IN TEMPERATURE

CHARACTERISTIC TEST FROM DHW OPERATION

Next: p348

DHW COOL - RADIATORS BEGIN TO HEAT OR INCREASE IN TEMPERATURE

CHARACTERISTIC TEST FROM DHW OPERATION

Next: p350

DHW TOO HOT

CHARACTERISTIC TEST FROM DHW OPERATION

Next: p352

DHW RUNS HOT THEN COOL

CHARACTERISTIC TEST FROM DHW OPERATION

Next: p354

DISPLAY DOES NOT OPERATE CORRECTLY

CHARACTERISTIC TEST FROM OBSERVATION BOILER SELF CHECK

Next: p44

RESISTANCE NOT AS EXPECTED

CHARACTERISTIC TEST FROM RESISTANCE OUTSIDE TEMPERATURE SENSOR AND HARNESS

Next: !p844

NO OUTDOOR SENSOR INSTALLED

CHARACTERISTIC TEST FROM RESISTANCE OUTSIDE TEMPERATURE SENSOR AND HARNESS

Next: p674

VOLTAGE NOT AS EXPECTED ON TEST 1.

CHARACTERISTIC TEST FROM VOLTAGE DIVERTER VALVE

Next: p779

VOLTAGES NOT AS EXPECTED ON TESTS 2/3.

CHARACTERISTIC TEST FROM VOLTAGE DIVERTER VALVE

Next: !p781

TEST 1. VOLTAGE NOT AS EXPECTED - MAINS INPUT

CHARACTERISTIC TEST FROM VOLTAGE ON/OFF SWITCH (BOILER)

Next: p1016

TEST 2. VOLTAGE NOT AS EXPECTED - ON/OFF SWITCH OUTPUT

CHARACTERISTIC TEST FROM VOLTAGE ON/OFF SWITCH (BOILER)

Next: !p92

BOILER GOES TO FAULT CODE F2 BEFORE 80 °C

CHARACTERISTIC TEST FROM OBSERVATION CH - OVERHEAT OCCUR

Next: !p976

TEMPERATURE EXCEEDS 85 °C & CONTINUES TO FIRE

CHARACTERISTIC TEST FROM OBSERVATION CH - OVERHEAT OCCUR

Next: !p978

25/10/2017 10:39:53 1706_1_50_7 10/11/2017 11:35:09

25/10/2017 10:02:35

Next: End

INSTALLATION TIGHTNESS TEST

Next: p1001, !f1002

RESISTANCE FAN AND HARNESS

REMOVE CONNECTOR 100 FROM THE PCB

Next: p1007, f1008

RESISTANCE FAN

REMOVE MAINS VOLTAGE CONNECTOR TO FAN ASSEMBLY

Next: !p1052, !f1010

RESISTANCE HARNESS DISPLAY

REMOVE CONNECTOR X11 FROM DISPLAY PCB

Next: !p102, !f103

RESISTANCE PUMP

REMOVE ELECTRICAL CONNECTOR FROM PUMP ASSEMBLY

Next: !p1013, !f1014

FUSE FURTHER INVESTIGATION - FUSED SPUR

Next: !p1019, !f1020

OBSERVATION DHW INLET SERVICE VALVE

Next: p105, !f106

RESISTANCE GAS VALVE (FUSE)

REMOVE CONNECTOR FROM GAS VALVE.

Next: !p1056, !f1057

RESISTANCE SPARK GENERATOR

REMOVE ELECTRICAL CONNECTOR TO SPARK GENERATOR

Next: !p1062, !f1061

VOLTAGE DIVERTER VALVE

{GAINPCBACS}
NO DEMAND

Next: p1129, ?1130, ?1132

DISCONNECT INTERNAL PROGRAMMER

DISCONNECT INTERNAL PROGRAMMER FROM BOILER
CH DEMAND FROM EXTERNAL CONTROLS

Next: p1144, !f1145

VOLTAGE SEND EXTERNAL CONTROLS

Next: !p1148, f1149

VOLTAGE SEND EXTERNAL CONTROLS AT BURNER CONTROL UNIT

{GAINPCBACS}

Next: p1150, !f1151

VOLTAGE SEND EXTERNAL CONTROLS

Next: !p1156, f1157

VOLTAGE SEND EXTERNAL CONTROLS AT BURNER CONTROL UNIT

{GAINPCBACS}

Next: p1158, !f1159

RESISTANCE STEPPER MOTOR

REMOVE DIVERTER VALV

Next: !p1247, !f1248

RESISTANCE STEPPER MOTOR

REMOVE DIVERTER VALV

Next: !p1250, !f1251

VOLTAGE PUMP AT PCB

{GAINPCBACS}

Next: !p1277, !f1278

RESISTANCE FLOW TEMPERATURE SENSOR

REMOVE CONNECTORS FROM FLOW SENSOR

Next: p151, !f152

OBSERVATION DISPLAY DHW DEMAND

Next: p170, f163

VOLTAGE FLOW SENSOR - DEMAND

{GAINPCBACS}

Next: !p164, f165

VOLTAGE FLOW SENSOR - SUPPLY

REMOVE CONNECTOR FROM FLOW SENSOR

Next: p166, !f167

RESISTANCE GAS VALVE AND HARNESS

REMOVE CONNECTOR 35 FROM THE PCB

Next: !p198, f199

VOLTAGE SPARK GENERATOR AT PCB

{GAINPCBACS}

Next: p227, !f228

RESISTANCE GAS VALVE

REMOVE CONNECTOR FROM GAS VALVE.

Next: !p254, !f201

RESISTANCE GAS VALVE

REMOVE CONNECTOR FROM GAS VALVE.

Next: !p249, !f209

DISCONNECT SPARK ELECTRODE AT SPARK GENERATOR

REMOVE SPARK ELECTRODE LEAD FROM SPARK GENERATOR,
MAKE SAFE

Next: p281, !f282

INSPECTION ELECTRODE

REMOVE ELECTRODE ASSEMBLY FROM BOILER

Next: p313, !f314

RESISTANCE FLOW TEMPERATURE SENSOR & HARNESS

REMOVE CONNECTOR X1 FROM THE PCB

Next: p511, f512

RESISTANCE FLOW TEMPERATURE SENSOR

REMOVE CONNECTORS FROM FLOW SENSOR

Next: !p515, !f516

RESISTANCE DHW TEMPERATURE SENSOR & HARNESS

REMOVE CONNECTOR X17 FROM THE PCB

Next: p518, f519

RESISTANCE DHW TEMPERATURE SENSOR

REMOVE CONNECTIONS TO DHW THERMISTOR

Next: !p520, !f521

DISCONNECT EXTERNAL CONTROLS

GAIN ACCESS TO FRONT

Next: !p55, f56

DISCONNECT INTERNAL TIMER/PROGRAMMER

IF FITTED, DISCONNEC

Next: !p57, !f58

RESISTANCE FLOW TEMPERATURE SENSOR

REMOVE CONNECTORS FROM FLOW SENSOR

Next: !p61, !f62

RESISTANCE FLUE TEMPERATURE SENSOR AND HARNESS

REMOVE CONNECTOR X1 FROM THE PCB

Next: p617, f618

RESISTANCE FLUE TEMPERATURE SENSOR

DISCONNECT FLUE SENSOR INLINE CONNECTOR

Next: !p619, !f620

ISOLATE COLD FEED (BOILER)

ISOLATE COLD WATER FEED TO BOILER

Next: p64, !f65

RESISTANCE OVERHEAT STAT AND HARNESS

ENSURE BOILER IS COOL
REMOVE CONNECTOR X1 FROM PCB

Next: p653, f650

RESISTANCE OVERHEAT STAT

REMOVE 1 X SPADE CONNECTOR FROM OVERHEAT STAT

Next: !p651, !f652

RESISTANCE OUTSIDE TEMPERATURE SENSOR AND HARNESS

IF INSTALLED DISCONNECT OUTDOOR TEMPERATURE SENSOR
FROM TERMINAL BLOCK PINS 3 & 4

Next: p664, ?670, ?672

VOLTAGE FAN ASSEMBLY (MAINS VOLTAGE)

{GAINPCBACS}

Next: p688, !f708

VOLTAGE FAN ASSEMBLY (MAINS VOLTAGE)

{GAINPCBACS}

Next: !p713, f71

RESISTANCE FUSE F4 (PCB)

REMOVE PCB FUSE

Next: p72, f73

FUSE FURTHER INVESTIGATION - F4 (PCB)

Next: !p74, !f75

VOLTAGE DIVERTER VALVE

{GAINPCBACS}
NO DEMAND

Next: p777, ?778, ?780

INSPECTION WATER INGRESS - FLOW SENSOR

REMOVE ELECTRICAL CONNECTOR TO FLOW SENSOR

Next: p853, !f860

RESISTANCE FLOW SENSOR HARNESS

REMOVE ELECTRICAL CONNECTOR TO FLOW SENSOR
REMOVE CONNECTOR X17 FROM PCB

Next: !p856, !f857

RESET APPLIANCE - FAULT CODE

ENSURE NO DEMANDS ARE PRESENT

Next: !p865, !f864

INSPECTION ELECTRODE

REMOVE ELECTRODE ASSEMBLY FROM BOILER

Next: p867, !f868

RESET APPLIANCE - FAULT CODE

ENSURE NO DEMANDS ARE PRESENT

Next: !p872, !f873

RESISTANCE FLUE TEMPERATURE SENSOR

DISCONNECT FLUE SENSOR INLINE CONNECTOR

Next: p892, !f916

RESET APPLIANCE - FAULT CODE F2

ENSURE NO DEMANDS ARE PRESENT
ENSURE BOILER IS COOL

Next: p926, f960

VOLTAGE PUMP AT PCB

{GAINPCBACS}

Next: !p1080, !f932

RESISTANCE OVERHEAT STAT

REMOVE 1 X SPADE CONNECTOR FROM OVERHEAT STAT

Next: !p961, !f962

INSPECTION ELECTRODE

REMOVE ELECTRODE ASSEMBLY FROM BOILER

Next: p984, !f985

OBSERVATION - STRONG INTERFERENCE (EMC) FIELD PRESENT

Next: p991, !f996

RESET APPLIANCE - FAULT CODE

ENSURE NO DEMANDS ARE PRESENT

Next: !p998, !f999

PRESSURE STANDING RETURN

ATTACH U GAUGE TO IN

Next: !p1065, ?1066, ?1068

RESISTANCE PUMP AND HARNESS

REMOVE CONNECTOR 20 FROM THE PCB

Next: p1053, f1012

RESISTANCE FUSED SPUR

REMOVE FUSE FROM FUSED SPUR

Next: !p1017, f1018

OBSERVATION COLD WATER SUPPLY

Next: p107, !f108

RESISTANCE GAS VALVE AND HARNESS (FUSE)

REMOVE CONNECTOR 35 FROM THE PCB

Next: p1054, f1055

RESISTANCE SPARK GENERATOR AND HARNESS

REMOVE CONNECTOR 54 FROM THE PCB

Next: !p1058, f1059

INSPECTION ELECTRODE

REMOVE ELECTRODE ASSEMBLY FROM BOILER

Next: p1072, !f1071

INSPECTION DHW FLOW COMPONENTS

DRAIN THE DOMESTIC H

Next: !p110, ?116, ?118, ?120

RESET APPLIANCE - FAULT CODE

ENSURE NO DEMANDS ARE PRESENT

Next: !p1073, !f1074

OBSERVATION INTERNAL PROGRAMMER FITTED

Next: p1142, f1143

INSPECTION PRESSURE SYSTEM

Next: p1123, !f1124

OBSERVATION BOILER OUTPUT (CH)

Next: p1092, !f1093

PRESSURE EXPANSION VESSEL

BOILER DRAINED, PRIMARY SYSTEM WATER

Next: !p1090, !f1091

INSPECTION PRESSURE SYSTEM

Next: p1094, !f1095

PUMP TEST

Next: p1096, !f1097

RESISTANCE FLOW TEMPERATURE SENSOR

REMOVE CONNECTORS FROM FLOW SENSOR

Next: !p1223, !f1099

INSPECTION SERVICE VALVES

Next: p1125, !f1126

OBSERVATION DIVERTER VALVE OPERATION (CH)

Next: p1127, f1128

PUMP TEST

Next: p1138, !f1139

OBSERVATION DIVERTER VALVE PADDLE

REMOVE DIVERTER VALV

Next: !p1136, !f1137

RESISTANCE STEPPER MOTOR AND HARNESS

REMOVE CONNECTOR X3 FROM THE PCB

Next: !p1134, f1249

OBSERVATION INTERNAL BY-PASS

POSITION TEMPERATURE

Next: !p1140, !f1141

VOLTAGE RETURN EXTERNAL CONTROLS

GAIN ACCESS TO TERMINAL BLOCK, LOCATED UNDERNEATH BOILER
USE INSULATION MAT AS REQUIRED

Next: !p1154, f1155

VOLTAGE RETURN EXTERNAL CONTROLS

GAIN ACCESS TO TERMINAL BLOCK, LOCATED UNDERNEATH BOILER
USE INSULATION MAT AS REQUIRED

Next: !p1146, f1147

RESISTANCE HARNESS DISPLAY

REMOVE CONNECTOR X11 FROM DISPLAY PCB

Next: !p1152, !f1153

RESISTANCE HARNESS DISPLAY

REMOVE CONNECTOR X11 FROM DISPLAY PCB

Next: !p1160, !f1161

RESISTANCE RECTIFICATION LEAD

REMOVE RECTIFICATION

Next: !p1163, !f1164

OBSERVATION DHW OUTPUT (MIXER TAP PASSING)

Next: p1194, !f1195

INSPECTION PLATE HEAT EXCHANGER

ISOLATE COLD WATER S

Next: p1199, !f1197

BOILER OUTPUT

SET BOILER TO 100% OUTPUT

Next: !p1200, ?1201, ?1203

SERVICE MODE

Next: !p1205, !f1206

INSPECTION AIR INTAKE AND VENTURA

REMOVE AIR INTAKE MA

Next: p191, ?1264, ?1266

OBSERVATION PUMP RUNS

Next: p900, f1276

INSPECTION FLUE

Next: p1281, !f1282

INSPECTION AIR INTAKE AND VENTURI (OUTPUT)

REMOVE AIR INTAKE MA

Next: p1294, ?1285, ?1287

INSPECTION BURNER / HEAT EXCHANGER FLUEWAYS

REMOVE BURNER MODULE UNIT ASSEMBLY FROM BOILER

Next: !p1302, ?1290, ?1292

INSPECTION FAN - INTERNAL

WITH AIR INTAKE MANIFOLD AND FAN VENTURI REMOVED FROM PREVIOUS TEST

Next: p1283, !f1301

RESISTANCE DHW TEMPERATURE SENSOR

REMOVE CONNECTIONS TO DHW THERMISTOR

Next: !p153, !f154

INSPECTION CONDENSATE PIPE

Next: p276, ?1242, ?1244

INSPECTION CONDENSATE PIPE

Next: p328, ?1231, ?1233

RESISTANCE HARNESS FLOW SENSOR

REMOVE CONNECTOR FROM FLOW SENSOR

Next: !p168, !f169

VOLTAGE PUMP AT PCB

{GAINPCBACS}

Next: !p1077, !f174

INSPECTION CONDENSATE PIPE

Next: p186, ?1237, ?1239

VOLTAGE GAS VALVE AT PCB

{GAINPCBACS}

Next: p187, f188

PRESSURE GAS INLET DROP

ATTACH U GAUGE TO GAS INLET PRESSURE TEST POINT

Next: p189, ?202, ?204

OBSERVATION SPARKING OCCURS

REMOVE ELECTRODE LEA

Next: p1252, f192

INSPECTION ELECTRODE

REMOVE ELECTRODE ASSEMBLY FROM BOILER

Next: p193, !f194

INSPECTION BURNER / HEAT EXCHANGER FLUEWAYS / ELECTRODE

REMOVE BURNER MODULE UNIT ASSEMBLY FROM BOILER

Next: !p195, ?223, ?225, ?250

RESISTANCE GAS VALVE AND HARNESS

REMOVE CONNECTOR 35 FROM THE PCB

Next: p231, f207

INSPECTION BURNER / HEAT EXCHANGER FLUEWAYS

REMOVE BURNER MODULE UNIT ASSEMBLY FROM BOILER

Next: !p217, ?219, ?221

INSPECTION FLUE

Next: p203, !f244

RESISTANCE HARNESS SPARK GENERATOR

REMOVE CONNECTORS FROM SPARK GENERATOR

Next: !p229, !f253

INSPECTION AIR INTAKE AND VENTURA

REMOVE AIR INTAKE MA

Next: p206, ?240, ?242

PRESSURE GAS INLET

ATTACH U GAUGE TO GAS INLET PRESSURE TEST POINT

Next: p277, !f278

VOLTAGE RECTIFICATION AT SPARK GENERATOR (NO DEMAND)

SLIGHTLY MOVE SPARK GENERATORS TOP CONNECTOR TO EXPOSE TERMINAL

Next: p299, f280

DISCONNECT RECTIFICATION LEAD AT PCB

REMOVE RECTIFICATION LEAD FROM X6 AT THE PCB & MAKE SAFE

Next: p1162, !f284

VOLTAGE RECTIFICATION AT SPARK GENERATOR (DEMAND)

SLIGHTLY MOVE SPARK GENERATORS TOP CONNECTOR TO EXPOSE TERMINAL

Next: !p324, f312

INSPECTION BURNER / HEAT EXCHANGER FLUEWAYS / ELECTRODE

REMOVE BURNER MODULE UNIT ASSEMBLY FROM BOILER

Next: !p323, ?317, ?319, ?321

PRESSURE GAS INLET

ATTACH U GAUGE TO GAS INLET PRESSURE TEST POINT

Next: p332, !f333

INSPECTION FLUE

Next: p334, !f335

INSPECTION AIR INTAKE AND VENTURA

REMOVE AIR INTAKE MA

Next: p336, ?337, ?339

INSPECTION BURNER / HEAT EXCHANGER FLUEWAYS

REMOVE BURNER MODULE UNIT ASSEMBLY FROM BOILER

Next: !p342, ?343, ?345

INSPECTION PRESSURE SYSTEM

Next: p359, !f360

OBSERVATION DIVERTER VALVE OPERATION (DHW)

Next: !p786, f776

RESISTANCE DHW TEMPERATURE SENSOR

REMOVE CONNECTIONS TO DHW THERMISTOR

Next: !p714, !f715

INSPECTION PRESSURE SYSTEM

Next: p833, !f834

RESISTANCE DHW TEMPERATURE SENSOR

REMOVE CONNECTIONS TO DHW THERMISTOR

Next: p361, !f362

RESISTANCE FLOW TEMPERATURE SENSOR

REMOVE CONNECTORS FROM FLOW SENSOR

Next: p363, !f364

PUMP TEST

Next: p1193, !f366

OBSERVATION FAN RUNS (NO DISPLAY)

REMOVE 1 CONNECTOR FROM OVERHEAT STAT AND MAKE SAFE

Next: p68, f69

FAULT CODES 1

Next: p48, !f47

FAULT CODES 2

Next: !p49, !f50

OBSERVATION DISPLAY CH OR DHW SYMBOL

ENSURE NO DEMANDS

Next: p52, f63

RESET APPLIANCE - FAULT CODE

ENSURE NO DEMANDS ARE PRESENT

Next: !p513, !f514

RESET APPLIANCE - FAULT CODE

ENSURE NO DEMANDS ARE PRESENT

Next: !p522, !f523

OBSERVATION FLOW TEMPERATURE DISPLAYED (FROST PROTECTION)

NO DEMANDS

Next: p53, f54

TEMPERATURE FLOW PIPE (FROST PROTECTION)

ATTACH FGA TEMPERATURE SENSOR TO PRIMARY HEAT EXCHANGER FLOW CONNECTION

Next: !p59, f60

RESET APPLIANCE - FAULT CODE

ENSURE NO DEMANDS ARE PRESENT

Next: !p621, !f622

DISCONNECT FLOW SENSOR (DHW)

REMOVE ELECTRICAL CONNECTOR TO DHW FLOW SENSOR AND MAKE SAFE

Next: !p66, !f67

RESET APPLIANCE - FAULT CODE E3

ENSURE BOILER IS COOL
ENSURE NO DEMANDS ARE PRESENT

Next: !p654, !f656

RESET APPLIANCE - FAULT CODE

ENSURE NO DEMANDS ARE PRESENT

Next: !p677, !f667

RESET APPLIANCE - FAULT CODE

ENSURE NO DEMANDS ARE PRESENT

Next: !p675, !f676

VOLTAGE INPUT DISPLAY PCB

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

Next: p87, f101

VOLTAGE FAN CONTROL

REMOVE 1 CONNECTOR F

Next: p702, !f703

RESISTANCE FAN CONTROL HARNESS

REMOVE FAN CONTROL CONNECTOR FROM FAN ASSEMBLY

Next: p704, !f705

RESISTANCE POWER CABLE FAN ASSEMBLY

REMOVE FAN POWER CONNECTOR TO FAN ASSEMBLY

Next: !p706, !f1051

VOLTAGE ON/OFF SWITCH (BOILER)

{GAINPCBACS}
BOILER ON/OFF SWITCH SET TO ON POSITION

Next: p76, ?81, ?91

RESISTANCE CABLE - POWER

REMOVE CONNECTOR X2 FROM PCB

Next: !p83, !f84

OBSERVATION DIVERTER VALVE PADDLE

REMOVE DIVERTER VALV

Next: !p784, !f785

RESISTANCE STEPPER MOTOR AND HARNESS

REMOVE CONNECTOR X3 FROM THE PCB

Next: !p782, f1246

RESISTANCE DHW TEMPERATURE SENSOR

REMOVE CONNECTIONS TO DHW THERMISTOR

Next: p835, !f836

RESISTANCE FLOW TEMPERATURE SENSOR

REMOVE CONNECTORS FROM FLOW SENSOR

Next: p837, !f838

PUMP TEST

Next: p839, !f840

INSPECTION PLATE HEAT EXCHANGER

ISOLATE COLD WATER S

Next: !p841, !f842

RESISTANCE FLOW SENSOR AND HARNESS

REMOVE CONNECTOR X17 FROM PCB

Next: p854, f855

RESET APPLIANCE - FAULT CODE

ENSURE NO DEMANDS ARE PRESENT

Next: !p858, !f859

RESET APPLIANCE - FAULT CODE

ENSURE NO DEMANDS ARE PRESENT

Next: !p869, !f870

FURTHER INVESTIGATION DISPLAY OPERATION

Next: !p99, !f100

RESET APPLIANCE - FAULT CODE F1

ENSURE NO DEMANDS ARE PRESENT

Next: p899, !f897

INSPECTION PRESSURE SYSTEM

Next: p1268, !f901

PUMP TEST

Next: p910, !f903

RESISTANCE FLOW TEMPERATURE SENSOR

REMOVE CONNECTORS FROM FLOW SENSOR

Next: p911, !f912

OBSERVATION FLUE GAS TEMPERATURE

INSERT TEMPERATURE PROBE INTO FLUE GAS TEST POINT,
ENSURE A GOOD FIT SO NO FLUE GASES CAN ESCAPE

Next: !p917, !f914

INSPECTION PRESSURE SYSTEM

Next: p927, !f928

OBSERVATION PUMP RUNS

Next: p929, f930

PUMP TEST

Next: p968, !f936

RESISTANCE FLOW TEMPERATURE SENSOR

REMOVE CONNECTORS FROM FLOW SENSOR

Next: p969, !f970

RESISTANCE DHW TEMPERATURE SENSOR

REMOVE CONNECTIONS TO DHW THERMISTOR

Next: p971, !f972

OBSERVATION CH - OVERHEAT OCCUR

Next: p973, ?975, ?977

OBSERVATION DHW - OVERHEAT OCCUR

Next: p979, !f980

OBSERVATION PUMP OVERRUN

Next: !p1228, !f982

RESET APPLIANCE - FAULT CODE

ENSURE NO DEMANDS ARE PRESENT

Next: !p986, !f987

INSPECTION ELECTRODE

REMOVE ELECTRODE ASSEMBLY FROM BOILER

Next: p992, !f993

RESET APPLIANCE - FAULT CODE

ENSURE NO DEMANDS ARE PRESENT

Next: !p994, !f995

System Information

  • Total Tests: 496
  • Sequence Logic: Decoded from encrypted .seq file
  • Navigation: Dynamic based on pass/fail results
  • Source: 4731307 GW SWIFTFLOW 100 SIT Control