XSol Diagnostic System

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:

VITODENS 100-W COMPACT

WARNING - IMPORTA

Next: &1, *

APPLIANCE APPEARS SATISFACTORY

Next: nff

INFORMATION CASE REMOVAL

Next: &3, !f2

OBSERVATION BOILER SELF CHECK

BOILER ON/OFF PUSHED IN, ON POSITION
ENSURE NO DEMANDS
LOCATE SYSTEM PUMP IF REQUIRED

Next: &71, ?4, ?6, ?8

BOILER CONTROLS SET UP & RESET INFORMATION

Next: &73, !f72

TYPE OF DIAGNOSTIC PROCEDURE

PLEASE SELECT FROM O

Next: &950, !f74

OBSERVATION BURNER IGNITION & ESTABLISH

Next: &356, ?217, ?219, ?221

PRESSURE GAS INLET (BOILER IGNITED)

ATTACH U-GAUGE TO GAS INLET PRESSURE TEST POINT

Next: &358, !f357

CH OPERATION

Next: &1180, ?361, ?363

DISPLAY CODE 30 38

NOT USED

Next: &nff, f528

DISPLAY CODE 60 68

GLOBAL PAGE

Next: &nff, f536

DISPLAY CODE A9

GLOBAL PAGE

Next: &nff, f1169

DISPLAY CODE B0 B8

NOT USED

Next: &nff, f562

DISPLAY CODE E5

NOT USED

Next: &nff, p1079

DISPLAY CODE F0

NOT USED

Next: &nff, f585

DISPLAY CODE F1

NOT USED

Next: &nff, f603

DISPLAY CODE F2

NOT USED

Next: &nff, f617

DISPLAY CODE F3

NOT USED

Next: &nff, f1113

DISPLAY CODE F8

NOT USED

Next: &nff, f654

DISPLAY CODE F9

NOT USED

Next: &nff, f668

DISPLAY CODE FD FF

NOT USED

Next: &nff, f678

FUSE FURTHER INVESTIGATION

NOT USED

Next: &nff, f686

OBSERVATION PUMP RUNS

LOCATE SYSTEM PUMP
ENSURE THAT SEVERAL RADIATORS ARE OPEN TO PROVIDE A CIRCULATION ROUTE

Next: &989, f951

OBSERVATION FAN RUNS

ENSURE BOILER IS COOL

Next: &216, f990

& DISPLAY CODE 10 18

GLOBAL PAGE

Next: &nff, f1119

& DISPLAY CODE 50 58

GLOBAL PAGE

Next: &nff, f1152

HOT WATER OPERATION

HW DEMAND

Next: &nff, ?1181, ?1183

FAN DOES NOT RUN

SENSOR - TEMPERATURE

Next: End

FAN DOES NOT RUN

Next: End

BURNER DOES NOT IGNITE

ELECTRODE - IGNITION AND IONIZATION

Next: End

BURNER DOES NOT ESTABLISH 2

ELECTRODE - IGNITION AND IONIZATION

Next: End

BURNER DOES NOT IGNITE 4

ELECTRODE - IGNITION AND IONIZATION

Next: End

BURNER DOES NOT ESTABLISH

ELECTRODE - IGNITION AND IONIZATION

Next: End

BOILER @ TEMP RADS COOL 2

Next: End

BOILER @ TEMP RADS COOL

MOTOR - PUMP

Next: End

BOILER @ TEMP RADS COOL

Next: End

BOILER TEMP LOW RADS COOL

Next: End

BOIER TEMP LOW RADS COOL 2

SENSOR - TEMPERATURE

Next: End

SERVICE MODE 2

Z REDIRECT

Next: End

BOILER TEMP LOW RADS COOL

FLUE

Next: End

FAULT CODE E5

ELECTRODE - IGNITION AND IONIZATION

Next: End

FAULT CODE E5

CONTROL UNIT

Next: End

FAULT CODE F1

Next: End

FAULT CODE F1 2

CONTROL UNIT

Next: End

FAULT CODE F2 2

CONTROL UNIT

Next: End

FAULT CODE F2

Next: End

FAULT CODE F2 3

CONTROL UNIT

Next: End

FAULT CODE FD FF 2

ELECTRODE - IGNITION AND IONIZATION

Next: End

FAULT CODE F3

CONTROL UNIT

Next: End

FAULT CODE 10/18 2

CONTROL UNIT

Next: End

FAULT CODE 10/18

CONTROL UNIT

Next: End

FAULT CODE 50 58 2

CONTROL UNIT

Next: End

FAULT CODE 50 58

CONTROL UNIT

Next: End

FAULT CODE FD FF

ELECTRODE - IGNITION AND IONIZATION

Next: End

FAULT CODE FD FF

CONTROL UNIT

Next: End

FAULT CDOE A9

CONTROL UNIT

Next: End

FAULT CDOE A9 2

CONTROL UNIT

Next: End

FUSE FURTHER INVESTIGATION

MOTOR - PUMP

Next: End

FAN DOES NOT RUN

MOTOR - PUMP

Next: End

BOILER TEMP LOW RADS COOL

FAN - NRG

Next: End

FAULT CODE F2 2

THERMOCOUPLE

Next: End

FAULT CODE F2

Next: End

DISPLAY DOES NOT OPERATE

FUSE 2.5A (SLOW) 250V

Next: End

CASE REMOVAL

Z REDIRECT

Next: End

BURNER BAFFLES OR NOISY

CONDENSATE PIPEWORK

Next: End

BURNER BAFFLES OR NOISY

GAS INLET PRESSURE

Next: End

BURNER BAFFLES OR NOISY

FLUE

Next: End

BURNER DOES NOT IGNITE 2

CONDENSATE PIPEWORK

Next: End

BURNER DOES NOT ESTABLISH

GAS INLET PRESSURE

Next: End

BURNER DOES NOT IGNITE

CONDENSATE PIPEWORK

Next: End

BURNER DOES NOT IGNITE

GAS VALVE AND CONTROL UNIT

Next: End

BURNER DOES NOT IGNITE

FLUE

Next: End

BURNER DOES NOT IGNITE 3

GAS VALVE

Next: End

GAS INLET DHW DEMAMD

GAS INLET PRESSURE

Next: End

BOILER TEMP LOW RADS COOL

MOTOR - PUMP

Next: End

BOILER TEMP LOW RADS COOL

SENSOR - TEMPERATURE

Next: End

FAULT CODE 30

SENSOR - TEMPERATURE

Next: End

FAULT CODE 30

CONTROL UNIT

Next: End

FAULT CODE 51

SENSOR - TEMPERATURE

Next: End

FAULT CODE 51

CONTROL UNIT

Next: End

FAULT CODE 80

SENSOR - TEMPERATURE - FLUE GAS

Next: End

FAULT CODE B0 B8

CONTROL UNIT

Next: End

FAULT CODE F0

CONTROL UNIT

Next: End

FAULT CODE F1

SENSOR - TEMPERATURE - FLUE GAS

Next: End

FAULT CODE F1

CONTROL UNIT

Next: End

FAULT CODE F1

MOTOR - PUMP

Next: End

FAULT CODE F1

SENSOR - TEMPERATURE

Next: End

FAULT CODE F1

HEAT EXCHANGER

Next: End

FAULT CODE F2

MOTOR - PUMP

Next: End

FAULT CODE E3

SENSOR - TEMPERATURE

Next: End

FAULT CODE F2

SENSOR - TEMPERATURE

Next: End

FAULT CODE F8

GAS VALVE

Next: End

NO DISPLAY

FUSE (FUSED SPUR)

Next: End

FAULT CODE F8

ELECTRODE - IGNITION AND IONIZATION

Next: End

FAULT CODE F8

CONTROL UNIT

Next: End

FAULT CODE F9 FA FC 2

CONTROL UNIT

Next: End

FAULT CODE FD FF

EMC FIELD

Next: End

FUSE FURTHER INVESTIGATION

FAN - NRG

Next: End

FUSE FURTHER INVESTIGATION

GAS VALVE

Next: End

FAULT CODE F9

CABLE HARNESS - FAN

Next: End

FAULT CODE F9 FA FC

HARNESS

Next: End

FAULT CODE F9

CONTROL UNIT

Next: End

USER CONTROLS

Z REDIRECT

Next: End

TYPE OF DIAGNOSTIC PROCEDURE

Z REDIRECT

Next: End

FAULT CODE 2

Z REDIRECT

Next: End

BOILER RESET INFORMATION 2

Z REDIRECT

Next: End

SELF CHECK 2

CONTROL UNIT

Next: End

SELF CHECK

SENSOR - TEMPERATURE

Next: End

PUMP DOES NOT RUN

Next: End

CH DOES NOT RESPOND

INTERNAL TIMER/PROGRAMMER

Next: End

PUMP DOES NOT RUN

CONTROL UNIT

Next: End

FAN DOES NOT RUN

HARNESS

Next: End

FAN DOES NOT RUN 2

CONTROL UNIT

Next: End

BURNER DOES NOT IGNITE 4

GAS VALVE

Next: End

BURNER DOES NOT IGNITE 1

GAS VALVE

Next: End

BURNER BAFFLES OR NOISEY

GAS VALVE

Next: End

BURNER DOES NOT IGNITE

GAS VALVE

Next: End

BURNER DOES NOT IGNITE

BURNER GAUZE ASSEMBLY

Next: End

BURNER DOES NOT IGNITE

HEAT EXCHANGER

Next: End

BURNER DOES NOT IGNITE 2

ELECTRODE - IGNITION AND IONIZATION

Next: End

BURNER DOES NOT ESTABLISH

CONTROL UNIT

Next: End

BURNER DOES NOT ESTABLISH

BURNER GAUZE ASSEMBLY

Next: End

BURNER DOES NOT ESTABLISH

HEAT EXCHANGER

Next: End

BURNER DOES NOT IGNITE 3

ELECTRODE - IGNITION AND IONIZATION

Next: End

BURNER DOES NOT IGNITE 3

CONTROL UNIT

Next: End

BOILER @ TEMP RADS COOL

Next: End

BOILER TEMP LOW RADS COOL

CONTROL UNIT

Next: End

SERVICE MODE

Z REDIRECT

Next: End

BOILER TEMP LOW RADS COOL

EXTENSION - VENTURI

Next: End

BOILER TEMP LOW RADS COOL

GAS VALVE

Next: End

FAULT CODE E5

FAULT CODE RESET - RETEST BOILER OPERATION

Next: End

FAULT CODE F1 2

MOTOR - PUMP

Next: End

FAULT CODE F1

PUMP WIRING

Next: End

FAULT CODE F2 2

MOTOR - PUMP

Next: End

FAULT CODE F2

PUMP WIRING

Next: End

FAULT CODE F2

FAULT CODE F2 - OVERHEAT

Next: End

FAULT CODE F3

FAULT CODE RESET - RETEST BOILER OPERATION

Next: End

FAULT CODE 10 OR 18

OUTDOOR SENSOR

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 50 58

FAULT CODE RESET - RETEST BOILER OPERATION

Next: End

FAULT CODE 50 58 2

FAULT CODE RESET - RETEST BOILER OPERATION

Next: End

FAULT CODE 50 58 2

CYLINDER DEMAND BOX

Next: End

FAULT CODE FD FF

FAULT CODE RESET - RETEST BOILER OPERATION

Next: End

FAULT CDOE A9 2

FAULT CODE RESET - RETEST BOILER OPERATION

Next: End

FAULT CDOE A9

FAULT CODE RESET - RETEST BOILER OPERATION

Next: End

FAULT CDOE A9

OPEN THERM DEVICE

Next: End

FUSE FURTHER INVESTIGATION

PUMP WIRING

Next: End

HW OPERATION

Next: End

HW OPERATION

Next: End

FAN DOES NOT RUN

SWITCH-FLOW

Next: End

BOILER TEMP LOW RADS COOL

BURNER GAUZE ASSEMBLY

Next: End

BOILER TEMP LOW RADS COOL

HEAT EXCHANGER

Next: End

BOILER TEMP LOW RADS COOL 2

CONTROL UNIT

Next: End

FAULT CODE F2 4

CONTROL UNIT

Next: End

FAULT CODE F2

HARNESS

Next: End

NO DISPLAY

CONTROL UNIT

Next: End

FUSE FURTHER INVESTIGATION

Z REDIRECT

Next: End

BURNER BAFFLES OR NOISY

SIPHON

Next: End

BURNER BAFFLES OR NOISY

EXTENSION - VENTURI

Next: End

BURNER BAFFLES OR NOISY

GAS VALVE

Next: End

BURNER BAFFLES OR NOISY

BURNER GAUZE ASSEMBLY

Next: End

BURNER BAFFLES OR NOISY

HEAT EXCHANGER

Next: End

BURNER DOES NOT IGNITE 2

SIPHON

Next: End

BURNER DOES NOT IGNITE

SIPHON

Next: End

BURNER DOES NOT IGNITE

CONTROL UNIT

Next: End

BURNER DOES NOT IGNITE

CABLE GAS VALVE AND CONTROL UNIT

Next: End

BURNER DOES NOT IGNITE

GAS INLET PRESSURE

Next: End

BURNER DOES NOT IGNITE

CABLE HARNESS - GAS SOLENOID VALVE

Next: End

BURNER DOES NOT IGNITE

EXTENSION - VENTURI

Next: End

BURNER DOES NOT IGNITE 2

GAS VALVE

Next: End

BURNER DOES NOT IGNITE 2

BURNER GAUZE ASSEMBLY

Next: End

BURNER DOES NOT IGNITE 2

HEAT EXCHANGER

Next: End

BURNER DOES NOT ESTABLISH 2

CONTROL UNIT

Next: End

FAULT CODE 30

HARNESS

Next: End

FAULT CODE 30

FAULT CODE RESET - RETEST BOILER OPERATION

Next: End

FAULT CODE 51

HARNESS

Next: End

FAULT CODE 51

FAULT CODE RESET - RETEST BOILER OPERATION

Next: End

FAULT CODE B0

HARNESS

Next: End

FAULT CODE B0

FAULT CODE RESET - RETEST BOILER OPERATION

Next: End

FAULT CODE F0

FAULT CODE RESET - RETEST BOILER OPERATION

Next: End

NO DISPLAY 2

CONTROL UNIT

Next: End

FAULT CODE F1

BOILER RESET - FAULT CODE F1

Next: End

NO DISPLAY

Next: End

FAULT CODE F2

THERMOCOUPLE

Next: End

FAULT CODE F2

CONTROL UNIT

Next: End

NO DISPLAY

Z REDIRECT

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

FAULT CODE F9 FA FC

FAN - NRG

Next: End

FUSE FURTHER INVESTIGATION

CONTROL UNIT - FUSE BLOWN

Next: End

FUSE FURTHER INVESTIGATION

CABLE HARNESS - FAN

Next: End

FUSE FURTHER INVESTIGATION 2

CABLE HARNESS - GAS SOLENOID VALVE

Next: End

FAULT CODE

Z REDIRECT

Next: End

BURNER DOES NOT IGNITE 2

EXTENSION - VENTURI

Next: End

SELF CHECK

Next: End

BOILER SELF CHECK

FROST PROTECTION NORMAL OPERATION

Next: End

SELF CHECK

CONTROL UNIT

Next: End

DISPLAY DOES NOT OPERATE 2

CONTROL UNIT

Next: End

PUMP DOES NOT RUN 2

CONTROL UNIT

Next: End

PUMP DOES NOT RUN 3

CONTROL UNIT

Next: End

PUMP DOES NOT RUN

MOTOR - PUMP

Next: End

PUMP DOES NOT RUN

PUMP WIRING

Next: End

BURNER RESTRICTED AND/OR DAMAGED

CHARACTERISTIC TEST FROM INSPECTION BURNER / HEAT EXCHANGER FLUEWAYS

Next: !p1014

HEAT EXCHANGER FLUEWAYS RESTRICTED AND/OR DAMAGED

CHARACTERISTIC TEST FROM INSPECTION BURNER / HEAT EXCHANGER FLUEWAYS

Next: !p1016

ELECTRODE GAP TO BURNER SURFACE INCORRECT

CHARACTERISTIC TEST FROM INSPECTION BURNER / HEAT EXCHANGER FLUEWAYS / ELECTRODE

Next: !p1018

BURNER RESTRICTED AND/OR DAMAGED

CHARACTERISTIC TEST FROM INSPECTION BURNER / HEAT EXCHANGER FLUEWAYS

Next: !p1025

HEAT EXCHANGER FLUEWAYS RESTRICTED AND/OR DAMAGED

CHARACTERISTIC TEST FROM INSPECTION BURNER / HEAT EXCHANGER FLUEWAYS

Next: !p1027

ELECTRODE GAP TO BURNER SURFACE INCORRECT

CHARACTERISTIC TEST FROM INSPECTION BURNER / HEAT EXCHANGER FLUEWAYS / ELECTRODE

Next: !p1029

GAS RATE INCORRECT @ 100% OUTPUT

Next: p1051

HOW TO SET BOILER TO 100% OUTPUT

CHARACTERISTIC TEST FROM BOILER OUTPUT

Next: p1053

AIR INTAKE RESTRICTED AND/OR BLOCKED

CHARACTERISTIC TEST FROM INSPECTION AIR INTAKE AND VENTURI

Next: !p1064

VENTURI RESTRICTED AND/OR BLOCKED

CHARACTERISTIC TEST FROM INSPECTION AIR INTAKE AND VENTURI

Next: !p1066

RESISTANCE NOT AS EXPECTED

CHARACTERISTIC TEST FROM RESISTANCE OUTSIDE TEMPERATURE SENSOR AND HARNESS

Next: !p1122

NO OUTDOOR SENSOR INSTALLED

CHARACTERISTIC TEST FROM RESISTANCE OUTSIDE TEMPERATURE SENSOR AND HARNESS

Next: p1124

HW DEMAND NOT RECOGNISED

CHARACTERISTIC TEST FROM HOT WATER OPERATION

Next: !p1182

HW OPERATION UNSATISFACTORY

CHARACTERISTIC TEST FROM HOT WATER OPERATION

Next: !p1184

BURNER RESTRICTED AND/OR DAMAGED

CHARACTERISTIC TEST FROM INSPECTION BURNER / HEAT EXCHANGER FLUEWAYS

Next: !p1192

HEAT EXCHANGER FLUEWAYS RESTRICTED AND/OR DAMAGED

CHARACTERISTIC TEST FROM INSPECTION BURNER / HEAT EXCHANGER FLUEWAYS

Next: !p1194

BURNER DOES NOT IGNITE

CHARACTERISTIC TEST FROM OBSERVATION BURNER IGNITION & ESTABLISH

Next: p218

BURNER IGNITES BUT DOES NOT ESTABLISH

CHARACTERISTIC TEST FROM OBSERVATION BURNER IGNITION & ESTABLISH

Next: p220

BURNER IGNITES BUT BAFFLES OR IS NOISY

CHARACTERISTIC TEST FROM OBSERVATION BURNER IGNITION & ESTABLISH

Next: p222

AIR INTAKE RESTRICTED AND/OR BLOCKED

CHARACTERISTIC TEST FROM INSPECTION AIR INTAKE AND VENTURI

Next: !p234

VENTURI RESTRICTED AND/OR BLOCKED

CHARACTERISTIC TEST FROM INSPECTION AIR INTAKE AND VENTURI

Next: !p1006

BURNER RESTRICTED AND/OR DAMAGED

CHARACTERISTIC TEST FROM INSPECTION BURNER / HEAT EXCHANGER FLUEWAYS

Next: !p239

HEAT EXCHANGER FLUEWAYS RESTRICTED AND/OR DAMAGED

CHARACTERISTIC TEST FROM INSPECTION BURNER / HEAT EXCHANGER FLUEWAYS

Next: !p241

NO PRESSURE DROP OBSERVED

CHARACTERISTIC TEST FROM PRESSURE GAS INLET DROP

Next: p279

PRESSURE DROPS BELOW 17.4MB N.G. / 25MB L.P.G.

CHARACTERISTIC TEST FROM PRESSURE GAS INLET DROP

Next: !p281

AIR INTAKE RESTRICTED AND/OR BLOCKED

CHARACTERISTIC TEST FROM INSPECTION AIR INTAKE AND VENTURI

Next: !p291

VENTURI RESTRICTED AND/OR BLOCKED

CHARACTERISTIC TEST FROM INSPECTION AIR INTAKE AND VENTURI

Next: !p1005

BURNER RESTRICTED AND/OR DAMAGED

CHARACTERISTIC TEST FROM INSPECTION BURNER / HEAT EXCHANGER FLUEWAYS

Next: !p296

HEAT EXCHANGER FLUEWAYS RESTRICTED AND/OR DAMAGED

CHARACTERISTIC TEST FROM INSPECTION BURNER / HEAT EXCHANGER FLUEWAYS

Next: !p298

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

CHARACTERISTIC TEST FROM CH OPERATION

Next: p362

BOILER TEMPERATURE AND SYSTEM TEMPERATURE LOW - BOILER REMAINS LIT

CHARACTERISTIC TEST FROM CH OPERATION

Next: p438

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

CHARACTERISTIC TEST FROM OBSERVATION BOILER SELF CHECK

Next: p927

FAULT CODE DISPLAYED

CHARACTERISTIC TEST FROM OBSERVATION BOILER SELF CHECK

Next: p835

BOILER GOES TO FAULT CODE F2 BEFORE MAXIMUM FLOW TEMP REACHED

CHARACTERISTIC TEST FROM OBSERVATION CH - OVERHEAT OCCUR

Next: !p639

TEMPERATURE EXCEEDS MAXIMUM FLOW TEMPERATURE 80°C & CONTINUES TO FIRE

CHARACTERISTIC TEST FROM OBSERVATION CH - OVERHEAT OCCUR

Next: !p641

DELAY IN RETURNING TO STANDING PRESSURE

CHARACTERISTIC TEST FROM PRESSURE STANDING RETURN

Next: !p660

BOILER DOES NOT RESET - FAULT CODE REMAINS THE SAME

CHARACTERISTIC TEST FROM PRESSURE STANDING RETURN

Next: p662

DISPLAY DOES NOT OPERATE CORRECTLY

CHARACTERISTIC TEST FROM OBSERVATION BOILER SELF CHECK

Next: p9

AIR INTAKE RESTRICTED AND/OR BLOCKED

CHARACTERISTIC TEST FROM INSPECTION AIR INTAKE AND VENTURI

Next: !p860

VENTURI RESTRICTED AND/OR BLOCKED

CHARACTERISTIC TEST FROM INSPECTION AIR INTAKE AND VENTURI

Next: !p1004

03/01/2018 10:28:57 1801_1_50_1 09/01/2018 08:24:27

04/01/2018 12:57:27

Next: End

INSPECTION ELECTRODE

REMOVE ELECTRODE ASSEMBLY FROM BOILER

Next: !p1031, !f1032

VOLTAGE AT PUMP

EXPOSE WIRING CONNEC

Next: !p1086, f1087

VOLTAGE PUMP AT PCB

{GAINPCBACS}

Next: !p1088, !f1089

VOLTAGE AT PUMP

EXPOSE WIRING CONNEC

Next: !p1091, f1092

VOLTAGE PUMP AT PCB

{GAINPCBACS}

Next: !p1093, !f1094

VOLTAGE FAN ASSEMBLY (MAINS VOLTAGE)

{GAINPCBACS}

Next: !p937, f13

INSPECTION ELECTRODE

REMOVE ELECTRODE ASSEMBLY FROM BOILER

Next: p1114, !f1115

RESISTANCE OUTSIDE TEMPERATURE SENSOR AND HARNESS

IF INSTALLED DISCONN

Next: p1120, ?1121, ?1123

OBSERVATION CYLINDER DEMAND BOX INSTALLED

{GAINPCBACS}

Next: p1153, f1154

RESET APPLIANCE - FAULT CODE

ENSURE NO DEMANDS ARE PRESENT

Next: !p1157, !f1158

DISCONNECT CYLINDER DEMAND BOX

DISCONNECT CYLINDER DEMAND BOX, CONNECTED TO 2X RED LEADS AS ILLUSTRATED & MAKE SAFE

Next: !p1162, !f1163

OBSERVATION OPEN THERM DEVICE INSTALLED

{GAINPCBACS}

Next: p1170, f1171

RESET APPLIANCE - FAULT CODE

ENSURE NO DEMANDS ARE PRESENT

Next: !p1172, !f1173

DISCONNECT OPEN THERM DEVICE

DISCONNECT OPEN THERM DEVICE, CONNECTIONS ARE 1 & 2 OF TERMINAL BLOCK & MAKE SAFE

Next: !p1176, !f1177

RESISTANCE OVERHEAT STAT AND HARNESS

ENSURE BOILER IS COOL
REMOVE CONNECTOR X20 FROM PCB

Next: !p1198, f1199

RESISTANCE OVERHEAT STAT

REMOVE 1 X SPADE CONNECTOR FROM OVERHEAT STAT

Next: !p1200, !f1201

RESISTANCE FUSE F4 (PCB)

REMOVE PCB FUSE

Next: p60, f15

FUSE FURTHER INVESTIGATION - (PCB)

Next: !p16, !f17

INSPECTION CONDENSATE PIPE

Next: !p225, !f226

INSPECTION CONDENSATE PIPE

Next: !p244, !f245

INSPECTION CONDENSATE PIPE

Next: !p268, !f269

RESISTANCE GAS VALVE AND HARNESS

REMOVE CONNECTOR 35 FROM THE PCB

Next: !p272, f273

RESISTANCE GAS VALVE

REMOVE CONNECTOR FROM GAS VALVE

Next: !p274, !f275

RESISTANCE GAS VALVE

REMOVE CONNECTOR FROM GAS VALVE

Next: !p286, !f287

VOLTAGE AT SPARK GENERATOR - SPARK ELECTRODE DISCONNECTED

REMOVE SPARK ELECTRODE LEAD FROM SPARK GENERATOR, MAKE SAFE
ENSURE NO DEMANDS

Next: !p352, !f1034

RESISTANCE FLOW TEMPERATURE SENSOR & HARNESS

REMOVE CONNECTOR X20 FROM THE PCB

Next: p529, f530

RESISTANCE FLOW TEMPERATURE SENSOR

REMOVE CONNECTORS FROM FLOW SENSOR

Next: !p531, !f532

RESISTANCE RETURN TEMPERATURE SENSOR & HARNESS

REMOVE CONNECTOR X20 FROM THE PCB

Next: p537, f538

RESISTANCE RETURN TEMPERATURE SENSOR

DISCONNECT INLINE CONNECTOR TO RETURN SENSOR

Next: !p539, !f540

RESISTANCE FLUE TEMPERATURE SENSOR AND HARNESS

REMOVE CONNECTOR X20 FROM THE PCB

Next: p563, f564

RESISTANCE FLUE TEMPERATURE SENSOR

DISCONNECT FLUE SENSOR INLINE CONNECTOR

Next: !p565, !f566

RESET APPLIANCE - FAULT CODE

ENSURE NO DEMANDS ARE PRESENT

Next: !p586, !f587

RESISTANCE FLUE TEMPERATURE SENSOR

DISCONNECT FLUE SENSOR INLINE CONNECTOR

Next: p604, !f605

RESET APPLIANCE - FAULT CODE F2

ENSURE NO DEMANDS ARE PRESENT
ENSURE BOILER IS COOL

Next: p618, f1197

RESISTANCE FUSED SPUR

REMOVE FUSE FROM FUSED SPUR

Next: !p63, f64

FUSE FURTHER INVESTIGATION - FUSED SPUR

Next: !p65, !f66

INSTALLATION TIGHTNESS TEST

Next: p655, !f656

VOLTAGE FAN ASSEMBLY (MAINS VOLTAGE)

{GAINPCBACS}

Next: p669, !f670

OBSERVATION - STRONG INTERFERENCE (EMC) FIELD PRESENT

Next: p1164, !f680

RESISTANCE FAN AND HARNESS

REMOVE CONNECTOR 100 FROM THE PCB

Next: p687, f688

RESISTANCE FAN

REMOVE MAINS VOLTAGE CONNECTOR TO FAN ASSEMBLY

Next: !p757, !f690

RESISTANCE GAS VALVE (FUSE)

REMOVE CONNECTOR FROM GAS VALVE

Next: !p758, !f698

RESISTANCE PUMP (FUSE INVESTIGATION)

REMOVE WIRING CONNECTIONS AT PUMP

Next: !p1179, !f1178

DISCONNECT EXTERNAL CONTROLS

{GAINPCBACS}
DISCONNECT SWITCHED LIVE (PIN1) FROM TERMINAL BLOCK & MAKE SAFE
NO DEMANDS

Next: !p930, !f931

RESISTANCE FLOW TEMPERATURE SENSOR

REMOVE CONNECTORS FROM FLOW SENSOR

Next: !p934, !f935

OBSERVATION DISPLAY CH DEMAND

Next: p952, f953

VOLTAGE SWITCHED LIVE

{GAINPCBACS}

Next: p954, !f955

DISCONNECT INTERNAL PROGRAMMER

DISCONNECT INTERNAL

Next: !p958, !f959

VOLTAGE PUMP AT PCB

{GAINPCBACS}

Next: !p962, !f963

RESISTANCE FLOW SWITCH

DISCONNECT INLINE CONNECTOR TO FLOW SWITCH

Next: p991, f995

OBSERVATION HEATING SYSTEM FILLED & VENTED

Next: p1185, !f1002

INSPECTION ELECTRODE

REMOVE ELECTRODE ASSEMBLY FROM BOILER

Next: p1009, !f1010

INSPECTION BURNER / HEAT EXCHANGER FLUEWAYS / ELECTRODE

REMOVE BURNER MODULE UNIT ASSEMBLY FROM BOILER

Next: !p1011, ?1013, ?1015, ?1017

INSPECTION ELECTRODE

REMOVE ELECTRODE ASSEMBLY FROM BOILER

Next: p1020, !f1021

INSPECTION BURNER / HEAT EXCHANGER FLUEWAYS / ELECTRODE

REMOVE BURNER MODULE UNIT ASSEMBLY FROM BOILER

Next: !p1022, ?1024, ?1026, ?1028

PUMP TEST

Next: p1037, !f1038

INSPECTION SYSTEM BYPASS

Next: !p1039, !f1041

RESISTANCE RETURN TEMPERATURE SENSOR

DISCONNECT INLINE CONNECTOR TO RETURN SENSOR

Next: p1048, !f1047

BOILER OUTPUT

SET BOILER TO 100% OUTPUT

Next: !p1049, ?1050, ?1052

INSPECTION FLUE

Next: p1056, !f1057

SERVICE MODE

Next: !p1054, !f1055

INSPECTION AIR INTAKE AND VENTURI

REMOVE AIR INTAKE MANIFOLD

Next: p1189, ?1063, ?1065

INSPECTION ELECTRODE

REMOVE ELECTRODE ASSEMBLY FROM BOILER

Next: p1080, !f1081

RESET APPLIANCE - FAULT CODE

ENSURE NO DEMANDS ARE PRESENT

Next: !p1082, !f1083

RESET APPLIANCE - FAULT CODE

ENSURE NO DEMANDS ARE PRESENT

Next: !p1116, !f1117

RESET APPLIANCE - FAULT CODE

ENSURE NO DEMANDS ARE PRESENT

Next: !p1127, !f1128

RESET APPLIANCE - FAULT CODE

ENSURE NO DEMANDS ARE PRESENT

Next: !p1125, !f1126

RESET APPLIANCE - FAULT CODE

ENSURE NO DEMANDS ARE PRESENT

Next: !p1155, f1156

INSPECTION ELECTRODE

REMOVE ELECTRODE ASSEMBLY FROM BOILER

Next: p1165, !f1166

RESET APPLIANCE - FAULT CODE

ENSURE NO DEMANDS ARE PRESENT

Next: !p1167, !f1168

RESET APPLIANCE - FAULT CODE

ENSURE NO DEMANDS ARE PRESENT

Next: !p1174, f1175

PUMP TEST

Next: !p1186, !f1187

INSPECTION BURNER / HEAT EXCHANGER FLUEWAYS

REMOVE BURNER MODULE UNIT ASSEMBLY FROM BOILER

Next: p1190, ?1191, ?1193

INSPECTION FAN - INTERNAL

REMOVE BURNER ASSEMBLY FROM BOILER
SEPARATE FAN ASSEMBLY FROM BURNER ASSEMBLY

Next: !p1195, !f1196

INSPECTION SYSTEM BYPASS

Next: p630, !f1225

INSPECTION CONDENSATE SYPHON

GAIN ACCESS TO CONDENSATE SYPHON

Next: p266, f267

INSPECTION CONDENSATE SYPHON

GAIN ACCESS TO CONDENSATE SYPHON

Next: p242, f243

INSPECTION CONDENSATE SYPHON

GAIN ACCESS TO CONDENSATE SYPHON

Next: p223, f224

PRESSURE GAS INLET

ATTACH U-GAUGE TO GAS INLET PRESSURE TEST POINT

Next: p227, !f228

INSPECTION FLUE

Next: p229, !f230

INSPECTION AIR INTAKE AND VENTURI

REMOVE AIR INTAKE MANIFOLD

Next: p231, ?233, ?235

INSPECTION BURNER / HEAT EXCHANGER FLUEWAYS

REMOVE BURNER MODULE UNIT ASSEMBLY FROM BOILER

Next: !p237, ?238, ?240

PRESSURE GAS INLET

ATTACH U-GAUGE TO GAS INLET PRESSURE TEST POINT

Next: p246, !f247

VOLTAGE RECTIFICATION AT SPARK GENERATOR (NO DEMAND)

{GAINPCBACS}
ENSURE NO DEMANDS

Next: p1019, f351

VOLTAGE GAS VALVE AT PCB

{GAINPCBACS}

Next: p270, f271

PRESSURE GAS INLET DROP

ATTACH U-GAUGE TO GAS INLET PRESSURE TEST POINT

Next: p276, ?278, ?280

OBSERVATION SPARKING OCCURS

REMOVE ELECTRODE LEA

Next: p845, f1030

INSPECTION FLUE

Next: p282, !f283

RESISTANCE GAS VALVE AND HARNESS

REMOVE CONNECTOR 35 FROM THE PCB

Next: p284, f285

INSPECTION AIR INTAKE AND VENTURI

REMOVE AIR INTAKE MANIFOLD

Next: p288, ?290, ?292

INSPECTION BURNER / HEAT EXCHANGER FLUEWAYS

REMOVE BURNER MODULE UNIT ASSEMBLY FROM BOILER

Next: !p294, ?295, ?297

OBSERVATION HEATING SYSTEM FILLED & VENTED

Next: p1036, !f1035

OBSERVATION HEATING SYSTEM FILLED & VENTED

Next: p439, !f1042

PUMP TEST

Next: p441, !f442

RESISTANCE FLOW TEMPERATURE SENSOR

REMOVE CONNECTORS FROM FLOW SENSOR

Next: p1043, !f444

RESET APPLIANCE - FAULT CODE

ENSURE NO DEMANDS ARE PRESENT

Next: !p533, !f534

RESET APPLIANCE - FAULT CODE

ENSURE NO DEMANDS ARE PRESENT

Next: !p541, !f542

RESET APPLIANCE - FAULT CODE

ENSURE NO DEMANDS ARE PRESENT

Next: !p567, !f569

VOLTAGE MAINS INPUT PCB

{GAINPCBACS}

Next: !p61, f62

RESET APPLIANCE - FAULT CODE F1

ENSURE NO DEMANDS ARE PRESENT
ENSURE BOILER IS COOL

Next: p606, !f607

OBSERVATION HEATING SYSTEM FILLED & VENTED

Next: p881, !f1084

PUMP TEST

Next: p610, !f611

RESISTANCE FLOW TEMPERATURE SENSOR

REMOVE CONNECTORS FROM FLOW SENSOR

Next: p612, !f613

OBSERVATION FLUE GAS TEMPERATURE

INSERT TEMPERATURE PROBE INTO FLUE GAS TEST POINT

Next: !p614, !f615

OBSERVATION HEATING SYSTEM FILLED & VENTED

Next: p622, !f1095

OBSERVATION PUMP RUNS

LOCATE SYSTEM PUMP
ENSURE THAT SEVERAL RADIATORS ARE OPEN TO PROVIDE A CIRCULATION ROUTE

Next: p624, f1090

PUMP TEST

Next: p1202, !f631

RESISTANCE FLOW TEMPERATURE SENSOR

REMOVE CONNECTORS FROM FLOW SENSOR

Next: p632, !f646

RESISTANCE RETURN TEMPERATURE SENSOR

DISCONNECT INLINE CONNECTOR TO RETURN SENSOR

Next: p634, !f635

OBSERVATION CH - OVERHEAT OCCUR

Next: p636, ?638, ?640

OBSERVATION PUMP OVERRUN

Next: !p1101, !f1102

PRESSURE STANDING RETURN

ATTACH U-GAUGE TO IN

Next: !p657, ?659, ?661

INSPECTION ELECTRODE

REMOVE ELECTRODE ASSEMBLY FROM BOILER

Next: p663, !f664

RESET APPLIANCE - FAULT CODE

ENSURE NO DEMANDS ARE PRESENT

Next: !p665, !f666

VOLTAGE FAN CONTROL

REMOVE 1 CONNECTOR F

Next: p671, !f708

RESISTANCE FAN CONTROL HARNESS

REMOVE FAN CONTROL CONNECTOR FROM FAN ASSEMBLY

Next: p673, !f707

RESISTANCE POWER CABLE FAN ASSEMBLY

REMOVE FAN POWER CONNECTOR TO FAN ASSEMBLY

Next: !p675, !f705

RESISTANCE PUMP AND HARNESS

REMOVE CONNECTOR 20 FROM THE PCB

Next: p691, f897

RESISTANCE GAS VALVE AND HARNESS (FUSE)

REMOVE CONNECTOR 35 FROM THE PCB

Next: !p710, f696

BOILER RESET INFORMATION

Next: p838, !f841

FAULT CODES

Next: !p839, !f840

INSPECTION AIR INTAKE AND VENTURI

REMOVE AIR INTAKE MANIFOLD

Next: p1008, ?859, ?861

OBSERVATION PUMP RUNS

LOCATE SYSTEM PUMP
ENSURE THAT SEVERAL RADIATORS ARE OPEN TO PROVIDE A CIRCULATION ROUTE

Next: p608, f1085

OBSERVATION FAN RUNS (NO DISPLAY)

REMOVE 1 CONNECTOR FROM OVERHEAT STAT AND MAKE SAFE

Next: !p1218, f11

OBSERVATION FLOW TEMPERATURE DISPLAYED (FROST PROTECTION)

NO DEMANDS

Next: p928, f929

TEMPERATURE FLOW PIPE (FROST PROTECTION)

ATTACH FGA TEMPERATURE SENSOR TO PRIMARY HEAT EXCHANGER FLOW CONNECTION

Next: !p932, f933

VOLTAGE AT PUMP

EXPOSE WIRING CONNEC

Next: !p960, f961

OBSERVATION INTERNAL OR EXTERNAL PROGRAMMER FITTED

Next: !p956, f957

RESISTANCE FLOW SWITCH HARNESS

DISCONNECT INLINE CONNECTOR TO FLOW SWITCH

Next: p999, !f994

RESISTANCE FLOW TEMPERATURE SENSOR

REMOVE CONNECTORS FROM FLOW SENSOR

Next: !p1000, !f1001

System Information

Total Tests: 375

Sequence Logic: Decoded from encrypted .seq file

Navigation: Dynamic based on pass/fail results

Source: 4731307 GW SWIFTFLOW 100 SIT Control