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:

POTTERTON POWERMAX HE INTEGRAL PROGRAMMER

WARNING - IMPORTA

Next: &2, *

APPLIANCE APPEARS SATISFACTORY

Next: nff

SYSTEM CHECKS

PLEASE ENSURE THE FOLLOWING SYSTEM CHECKS ARE COMPLETED

Next: &666, !f4

POTTERTON POWERMAX HE INTEGRAL PROGRAMMER

{ISOLATEMAINSPOWER}<

Next: &1, !f3

CH OPERATION

Next: &nff, ?275, ?277, ?279, ?817

DHW OPERATION

Next: &431, ?265, ?267, ?269, ?281, ?350, ?518

FAN RUNS

DHW TEMPERATURE SELECTOR TO MAXIMUM POSITION

Next: &144, f784

BURNER IGNITES AND ESTABLISHES

Next: &14, ?941, ?943, ?994

CH DEMAND

ENSURE DHW IS SATISFIED I.E. STORAGE CYLINDER UP TO TEMPERATURE

Next: &5, f432

FAULT A02 A03 A04 E03 - OVERHEAT

OUTSIDE MODEL

Next: &nff, f626

FAULT A15 - PRESSURE SENSOR

OUTSIDE MODEL

Next: &nff, f623

FAULT E07 / E08 - DHW SENSOR

OUTSIDE MODEL

Next: &nff, f594

FAULT E04 / E06 - FLOW SENSOR

OUTSIDE MODEL

Next: &nff, f588

FAULT E21 - REVERSE POLARITY

OUTSIDE MODEL

Next: &nff, f606

FAULT E22 - INCORRECT FREQUENCY

OUTSIDE MODEL

Next: &nff, !f609

TYPE OF DIAGNOSTIC PROCEDURE

Next: &603, !f604

ENHANCED FAULT CODES

Next: &77, !f605

FAULT E29 - FAULT ON J11 / PRESSURE SENSOR

OUTSIDE MODEL

Next: &nff, f634

FAULT E40 / E41 - RETURN SENSOR

OUTSIDE MODEL

Next: &nff, f616

FAULT A05 / E42 - SAFETY RELAY FAILURE / INTERNAL ERROR

OUTSIDE MODEL

Next: &nff, f620

FAULT A33 - FAN SPEED INCORRECT

OUTSIDE MODEL

Next: &nff, f625

FAULT A20 / E20 - FALSE FLAME BEFORE IGNITION / NO DEMAND

OUTSIDE MODEL

Next: &nff, f847

FAULT A19 - FALSE FLAME AFTER DEMAND

OUTSIDE MODEL

Next: &nff, f715

DISPLAY ILLUMINATED

Next: &1154, f667

FAULT E01 - PRIMARY PRESSURE TOO HIGH

OUTSIDE MODEL

Next: &nff, f824

FAULT E00 - RECHECK AFTER LOCKOUT?

OUTSIDE MODEL

Next: &nff, f838

FAULT E03 - FLOW TEMPERATURE ABNORMALLY HIGH

OUTSIDE MODEL

Next: &nff, f842

FAULT A27

INTENTIONALLY BLANK HEADER FOR FAULT CODE

Next: &nff, f1146

SET INTEGRAL DEMAND

Next: &602, f1155

IGNITES BUT BAFFLES

CONDENSATE TRAP AND DRAIN

Next: End

IGNITES BUT BAFFLES

BURNER

Next: End

IGNITES BUT BAFFLES

HEAT EXCHANGER FLUE WAYS

Next: End

IGNITES BUT BAFFLES

HEAT EXCHANGER SUMP

Next: End

IGNITES BUT BAFFLES

DUCT - AIR INLET

Next: End

FAULT 1

ELECTRODE LEAD FLAME SENSE

Next: End

NOT ESTABLISHING

ELECTRODE FLAME SENSE

Next: End

NOT ESTABLISHING

GAS INLET PRESSURE

Next: End

DHW WATER COLD RADS HEAT

DIVERTER VALVE BODY

Next: End

EXHAUST

FLUE OUTLET

Next: End

BURNER IGNITES LOW FAN PRESSURE

CONDENSATE TRAP AND DRAIN

Next: End

BURNER IGNITES LOW FAN PRESSURE

BURNER

Next: End

FAULT 1

HEAT EXCHANGER FLUE WAYS

Next: End

BURNER IGNITES LOW PRESSURE

HEAT EXCHANGER SUMP

Next: End

FAULT 1

SENSOR OVERHEAT

Next: End

BURNER IGNITES

DUCT - AIR INLET

Next: End

SPARK PRESENT

ELECTRODE IGNITION LEAD

Next: End

FAULT 1

ELECTRODE IGNITION

Next: End

FAULT 1

CONDENSATE TRAP AND DRAIN

Next: End

BURNER IGNITES - PRESSURE OK

HEAT EXCHANGER FLUE WAYS

Next: End

BURNER IGNITES PRESSURE OK

HEAT EXCHANGER SUMP

Next: End

FAULT 2

BURNER

Next: End

FAULT 1

INJECTOR

Next: End

FAULT CODE E03

SYSTEM CHARGE PRESSURE

Next: End

FAULT CODE E03 - NO POWER TO PUMP

CONTROL PCB

Next: End

FAULT CODE E03

PUMP HARNESS

Next: End

FAULT CODE E03 - RUNNING SLOW

PUMP

Next: End

FAULT CODE E03

SENSOR RETURN

Next: End

FAULT CODE E03

SENSOR DHW

Next: End

FAULT CODE E03

Next: End

FAULT CODE E03

BYPASS

Next: End

FAULT CODE E03

HEAT EXCHANGER GAS/WATER

Next: End

FAULT CODE E03

Next: End

FAULT CODE A27

FLUE TEMPERATURE SENSOR

Next: End

CH OP UP TO TEMP RADS COLD

DIVERTER VALVE BODY

Next: End

FAULT 1

PCB SWITCH POSITION

Next: End

BLOWN

FUSE F1

Next: End

FAULT1

SPARK GENERATOR

Next: End

OPEN CIRCUIT

SPARK GENERATOR

Next: End

IGNITES BUT DOESNT ESTABLISH

DUCT - AIR INLET

Next: End

CALIBRATION 1

SENSOR DHW

Next: End

FAULT 2

PUMP

Next: End

FAULT

ELECTRICAL SAFETY CHECKS

Next: End

CALIBRATION 2

SENSOR DHW

Next: End

FAULT 1

PUMP HARNESS

Next: End

FAULT 4

PUMP

Next: End

FAULT 1

BYPASS

Next: End

CALIBRATION 3

SENSOR DHW

Next: End

CALIBRATION 4

SENSOR DHW

Next: End

PUMP FUNCTION 3

CONTROL PCB

Next: End

FAULT 2

PUMP HARNESS

Next: End

FAULT

SYSTEM CHECKS

Next: End

POOR SUPPLY 4

GAS INLET PRESSURE

Next: End

CALIBRATION 4

SENSOR FLOW

Next: End

CALIBRATION 4

SENSOR RETURN

Next: End

CALIBRATION 6

SENSOR DHW

Next: End

FAULT 3

CONDENSATE TRAP AND DRAIN

Next: End

FAULT 2

FLUE ASSEMBLY

Next: End

FAULT1

ROOM STAT/LINK

Next: End

FAULT 3

DIVERTER VALVE BODY

Next: End

FAULT 3

BYPASS

Next: End

CALIBRATION 6

SENSOR FLOW

Next: End

CH DEMAND FAULT 5

CONTROL PCB

Next: End

POOR SUPPLY 5

GAS INLET PRESSURE

Next: End

FAULT 2

INJECTOR

Next: End

FAULT 3

FLUE ASSEMBLY

Next: End

FAULT 3

FAN

Next: End

CALIBRATION 5

SENSOR FLOW

Next: End

CALIBRATION 5

SENSOR RETURN

Next: End

FAULT 1

SECONDARY EXPANSION VESSEL

Next: End

FAULT 2

BYPASS

Next: End

FAULT 5

PUMP

Next: End

CH DEMAND FAULT 2

CONTROL PCB

Next: End

FAULT 4

CONDENSATE TRAP AND DRAIN

Next: End

CALIBRATION 6

SENSOR RETURN

Next: End

FAULT CODE E04 / E06

SENSOR FLOW

Next: End

FAULT CODE E04 / E06

CONTROL PCB

Next: End

FAULT CODE E07 / E08

CONTROL PCB

Next: End

FAULT CODE E07 / E08

SENSOR DHW

Next: End

TYPE OF DIAGNOSTIC PROCEDURE

Z REDIRECT

Next: End

ENHANCED FAULT CODES

Z REDIRECT

Next: End

FAULT CODE E21

Next: End

FAULT CODE E22

CONTROL PCB

Next: End

FAULT CODE A05 / E42

CONTROL PCB

Next: End

FAULT CODE A03 - OPEN CCT

SENSOR OVERHEAT

Next: End

FAULT CODE A03

SYSTEM CHARGE PRESSURE

Next: End

FAULT CODE E40 / E41

SENSOR RETURN

Next: End

FAULT CODE E29

KIT - TRANSMITTER CONVERTER - HUBA

Next: End

FAULT CODE A33 - PERMANENT VOLTAGES ABSENT

CONTROL PCB

Next: End

FAULT CODE A33 - NO DEMAND TO FAN

CONTROL PCB

Next: End

FAULT CODE A33

CABLE - 5-WAY TO MVL FAN

Next: End

FAULT 1

Next: End

FAULT 1

ON/OFF SWITCH

Next: End

FAULT CODE A03 - NO POWER TO PUMP

CONTROL PCB

Next: End

FAULT CODE A03

PUMP HARNESS

Next: End

FAULT CODE A03

SENSOR FLOW

Next: End

FAULT CODE A03

SENSOR RETURN

Next: End

FAULT CODE A03 - RUNNING SLOW

PUMP

Next: End

FAULT CODE A03

SENSOR DHW

Next: End

FAULT CODE A03

Next: End

FAULT CODE A03

BYPASS

Next: End

FAULT CODE A03

HEAT EXCHANGER GAS/WATER

Next: End

FAULT CODE A19 - PASSING

GAS VALVE

Next: End

FAULT CODE A19

ELECTRODE FLAME SENSE

Next: End

FAULT CODE A19

CONDENSATE TRAP AND DRAIN

Next: End

FAULT CODE A19

FLUE ASSEMBLY

Next: End

FAULT CODE A19 - STUCK IN FAULT

CONTROL PCB

Next: End

FAULT CODE A15

SYSTEM CHARGE PRESSURE

Next: End

FAULT CODE A03

Next: End

FAULT CODE A19 - NOT SHUTTING AFTER DEMAND

GAS VALVE

Next: End

FAULT CODE A15 - NO POWER TO PRESSURE SWITCH

CONTROL PCB

Next: End

FAULT CODE A15

SYSTEM PRESSURE SENSOR

Next: End

FAN RUNS

SYSTEM CHARGE PRESSURE

Next: End

FAN RUNS - NO POWER TO PRESSURE SWITCH

CONTROL PCB

Next: End

FAN RUNS

SYSTEM PRESSURE SENSOR

Next: End

OPEN CIRCUIT

SENSOR DHW

Next: End

CALIBRATION 1

SENSOR FLOW

Next: End

CALIBRATION 1

SENSOR RETURN

Next: End

CH OPERATION

EXPANSION VESSEL 12 LITRE (CH)

Next: End

FAULT CODE E01

SYSTEM CHARGE PRESSURE TOO HIGH

Next: End

FAULT CODE E01

GAUGE - PRESSURE

Next: End

FAULT CODE E01

EXPANSION VESSEL 12 LITRE (CH)

Next: End

FAULT CODE E01 - NO POWER TO PRESSURE SWITCH

CONTROL PCB

Next: End

FAULT CODE E01

SYSTEM PRESSURE SENSOR

Next: End

FAULT CODE E00

CONTROL PCB

Next: End

FAULT CODE E03

SENSOR FLOW

Next: End

FAULT CODE E03

CONTROL PCB

Next: End

FAULT CODE A20 - PASSING

GAS VALVE

Next: End

FAULT CODE A20

ELECTRODE FLAME SENSE

Next: End

FAULT CODE A20

CONDENSATE TRAP AND DRAIN

Next: End

FAULT CODE A20

FLUE ASSEMBLY

Next: End

DHW OPERATION SEIZED

DIVERTER VALVE BODY

Next: End

FAULT CODE A19

HEAT EXCHANGER FLUE WAYS

Next: End

FAULT CODE A20

HEAT EXCHANGER FLUE WAYS

Next: End

FAULT CODE A20 / E20

HEAT EXCHANGER SUMP

Next: End

FAULT CODE A19

HEAT EXCHANGER SUMP

Next: End

FAN RUNS - PERMANENT VOLTAGES ABSENT

CONTROL PCB

Next: End

FAN RUNS - NO DEMAND TO FAN

CONTROL PCB

Next: End

FAN RUNS

CABLE - 5-WAY TO MVL FAN

Next: End

IGNITES BUT BAFFLES

GAS INLET PRESSURE

Next: End

IGNITES BUT BAFFLES

FLUE OUTLET

Next: End

IGNITES BUT BAFFLES

GAS VALVE

Next: End

FAULT 1

DIVERTER VALVE HEAD

Next: End

FAULT 2

FAN

Next: End

POOR SUPPLY 1

GAS INLET PRESSURE

Next: End

FAULT 1

GAS VALVE

Next: End

GAS VALVE FUNCTION

CONTROL PCB

Next: End

BURNER IGNITES - WITH PRESSURE DROP

GAS VALVE

Next: End

FAULT CODE E03 - NOT RUNNING

PUMP

Next: End

FAULT CODE E03

DHW CALORIFIER CIRCULATION

Next: End

FAULT CODE E03

NO FAULT FOUND OVERHEAT

Next: End

FAULT CODE E03 - TRIPPING EARLY

SENSOR OVERHEAT

Next: End

FAULT CODE E03 - NOT SHUTTING DOWN PROPERLY

CONTROL PCB

Next: End

FAULT CODE A27

CONTROL PCB

Next: End

FAULT A27

HARNESS FLUE SENSOR

Next: End

FAULT 3

DIVERTER VALVE HEAD

Next: End

DHW DEMAND FUNCTION 2

CONTROL PCB

Next: End

FLAME SENSE FUNCTION

CONTROL PCB

Next: End

POWER FUNCTION

CONTROL PCB

Next: End

DISPLAY FUNCTION

CONTROL PCB

Next: End

SPARK GEN FUNCTION

CONTROL PCB

Next: End

SPARK GEN FUNCTION 2

CONTROL PCB

Next: End

FAULT 1

DIVERTER VALVE BODY

Next: End

DIVERTER DHW FUNCTION

CONTROL PCB

Next: End

FAULT 2

DIVERTER VALVE BODY

Next: End

DIVERTER DHW FUNCTION 2

CONTROL PCB

Next: End

FAULT 1

PUMP

Next: End

FAULT 1

DHW CALORIFIER CIRCULATION

Next: End

FAULT 3

PUMP

Next: End

FAULT 1

HEAT EXCHANGER GAS/WATER

Next: End

PUMP FUNCTION 1

CONTROL PCB

Next: End

CIRCULATION 1

DHW SYSTEM/CYLINDER

Next: End

FAULT 4

BURNER

Next: End

FAULT 2

Next: End

FAULT 2

GAS VALVE

Next: End

CH DEMAND FAULT 1

CONTROL PCB

Next: End

FAULT 1

SECONDARY PRESSURE RELIEF VALVE

Next: End

FAULT 1

Next: End

CH DEMAND FAULT 6

CONTROL PCB

Next: End

FAULT CODE E04 / E06

Z REDIRECT

Next: End

FAULT CODE E07 / E08

Z REDIRECT

Next: End

FAULT CODE E21

CONTROL PCB

Next: End

FAULT CODE E40 / E41

CONTROL PCB

Next: End

FAULT CODE A05 / E42

Z REDIRECT

Next: End

FAULT CODE A03 - STUCK IN FAULT

CONTROL PCB

Next: End

FAULT CODE E29

CONTROL PCB

Next: End

FAULT CODE A33

FAN

Next: End

FAULT CODE A03 - NOT RUNNING

PUMP

Next: End

FAULT CODE A03

NO FAULT FOUND OVERHEAT

Next: End

FAULT CODE A03 - TRIPPING EARLY

SENSOR OVERHEAT

Next: End

FAULT CODE A03

DHW CALORIFIER CIRCULATION

Next: End

FAULT CODE A03 - NOT SHUTTING DOWN PROPERLY

CONTROL PCB

Next: End

FAULT CODE A15 - STUCK IN FAULT

CONTROL PCB

Next: End

CH OPERATION

HOSE - CONNECTING

Next: End

FAULT CODE E01

HOSE - CONNECTING

Next: End

FAULT CODE E01 - STUCK IN FAULT

CONTROL PCB

Next: End

FAULT CODE E00

Z REDIRECT

Next: End

FAULT 2

DIVERTER VALVE HEAD

Next: End

FAULT CODE A19 - RETURNING TO FAULT CODE

CONTROL PCB

Next: End

FAULT CODE A20 - RETURNING TO FAULT CODE

CONTROL PCB

Next: End

FAN RUNS

FAN

Next: End

INLET PRESSURE OK BUT NO DROP DURING IGNITION

CHARACTERISTIC TEST FROM PRESSURE GAS INLET AND DROP

Next: p1050

INLET PRESSURE ABSENT OR DIES AWAY DURING SPARKING

CHARACTERISTIC TEST FROM PRESSURE GAS INLET AND DROP

Next: !p1052

BOILER GOES TO OVERHEAT LOCKOUT BEFORE 80°C

CHARACTERISTIC TEST FROM OBSERVATION RUN BOILER TO MAXIMUM DOES OVERHEAT OCCUR

Next: !p1142

BOILER CONTINUES FIRING PAST 85°C

CHARACTERISTIC TEST FROM OBSERVATION RUN BOILER TO MAXIMUM DOES OVERHEAT OCCUR

Next: !p1144

Water cold, radiators heat

CHARACTERISTIC TEST FROM DHW OPERATION

Next: p266

Boiler reaches temperature but water cold

CHARACTERISTIC TEST FROM DHW OPERATION

Next: p268

Radiators heat when DHW only calling

CHARACTERISTIC TEST FROM DHW OPERATION

Next: p295

Boiler reaches temperature but radiators cold

CHARACTERISTIC TEST FROM CH OPERATION

Next: p276

Boiler kettling

CHARACTERISTIC TEST FROM DHW OPERATION

Next: p278

Boiler temperature low and system temperature low

CHARACTERISTIC TEST FROM CH OPERATION

Next: p280

Boiler kettling

CHARACTERISTIC TEST FROM DHW OPERATION

Next: p282

Appliance fires but shuts down before water reaches temperature

CHARACTERISTIC TEST FROM DHW OPERATION

Next: p405

Water heats OK but discharge on cylinder blows

CHARACTERISTIC TEST FROM DHW OPERATION

Next: p519

BOILER GOES TO OVERHEAT LOCKOUT BEFORE 80°C

CHARACTERISTIC TEST FROM OBSERVATION RUN BOILER TO MAXIMUM DOES OVERHEAT OCCUR

Next: !p708

BOILER CONTINUES FIRING PAST 85°C

CHARACTERISTIC TEST FROM OBSERVATION RUN BOILER TO MAXIMUM DOES OVERHEAT OCCUR

Next: !p717

EXCESSIVE SYSTEM PERSSURE RISE OR E01 OCCURS DURING OPERATION

CHARACTERISTIC TEST FROM CH OPERATION

Next: p818

BURNER IGNITES SMOOTHLY BUT DOES NOT ESTABLISH

CHARACTERISTIC TEST FROM BURNER IGNITES AND ESTABLISHES

Next: p1024

BURNER DOES NOT IGNITE

CHARACTERISTIC TEST FROM BURNER IGNITES AND ESTABLISHES

Next: p1035

BURNER IGNITES BUT BAFFLES OUT

CHARACTERISTIC TEST FROM BURNER IGNITES AND ESTABLISHES

Next: p995

20/02/2018 14:11:45 1802_1_50_1 06/03/2018 13:17:49

28/02/2018 13:19:22

Next: End

INSPECTION FLUE

Next: p1037, !f1038

SENSOR OVERHEAT RESISTANCE

{ISOLATEMAINSPOWER}<

Next: !p1055, !f1056

OBSERVATION SPARK GENERATOR TYPE

WHICH TYPE OF SPARK GENERATOR IS FITTED?

Next: p1170, f1169

VOLTAGE AT CONNECTOR J8

{ISOLATEMAINSPOWER}
GAIN ACCESS TO PCB AS NECESSARY

Next: p1096, !f1097

TEMPERATURE DIFFERENTIAL FLOW AND RETURN CH

{ISOLATEMAINSPOWER}
ATTACH TEMPERATURE CLAMPS TO FLOW AND RETURN PIPES AS SHOWN

Next: !p1135, !f1136

RESISTANCE FLUE SENSOR AND HARNESS

{ISOLATEMAINSPOWER}
DISCONNECT PLUG J11 FROM THE PCB

Next: !p1147, f1148

RESISTANCE FLUE SENSOR

{ISOLATEMAINSPOWER}<

Next: !p1149, !f1150

PANEL SWITCH POSITION

{ISOLATEMAINSPOWER}

Next: !p1156, !f1157

RESISTANCE SPARK GENERATOR PACTROL

{ISOLATEMAINSPOWER}<

Next: !p1171, !f1172

DIVERTER VALVE OPERATION VOLTS

{ISOLATEMAINSPOWER}<

Next: p1031, f286

SENSOR DHW

{ISOLATEMAINSPOWER}
REMOVE CONNECTOR J13 FROM THE PCB

Next: !p287, !f288

PUMP VOLTAGE

{ISOLATEMAINSPOWER}
GAIN ACCESS TO PCB CONNECTIONS AS NECESSARY

Next: p303, f352

DIVERTER VALVE OPERATION VOLTS

{ISOLATEMAINSPOWER}<

Next: p860, f299

SENSOR DHW

{ISOLATEMAINSPOWER}
REMOVE CONNECTOR J13 FROM THE PCB

Next: !p300, !f301

PUMP RUNS

DHW TEMPERATURE SELECTOR TO MAXIMUM POSITION

Next: p308, f309

PUMP VOLTAGE

{ISOLATEMAINSPOWER}
GAIN ACCESS TO PCB CONNECTIONS AS NECESSARY

Next: p310, !f358

SENSOR DHW

{ISOLATEMAINSPOWER}
REMOVE CONNECTOR J13 FROM THE PCB

Next: !p354, !f353

ROOM THERMOSTAT/LINK INPUT

Next: p433, !f528

DIVERTER VALVE VOLTAGE (CH)

{ISOLATEMAINSPOWER}<

Next: p1151, !f471

FAN PRESSURE CHECK

{ISOLATEMAINSPOWER}<

Next: p481, !f492

SENSOR FLOW

{ISOLATEMAINSPOWER}<

Next: p589, !f591

SENSOR DHW

{ISOLATEMAINSPOWER}
REMOVE CONNECTOR J13 FROM THE PCB

Next: p595, !f598

VOLTAGE MAINS POWER SUPPLY POLARITY

Next: !p607, !f608

SENSOR RETURN

{ISOLATEMAINSPOWER}<

Next: !p617, !f633

OBSERVATION BOILER RESET INTERNAL ERROR

Next: !p621, !f622

SYSTEM CHARGE PRESSURE

{ISOLATEMAINSPOWER}

Next: p772, !f746

VOLTAGE FAN AT PCB

{ISOLATEMAINSPOWER}
REMOVE THE CONNECTOR FROM THE FAN AND MAKE SAFE
NO DEMAND

Next: p661, !f660

OBSERVATION BOILER RESET OVERHEAT

ENSURE APPLIANCE IS COOL

Next: p627, f629

SENSOR OVERHEAT RESISTANCE

{ISOLATEMAINSPOWER}<

Next: !p630, !f631

INSPECTION JP11 LINK

{ISOLATEMAINSPOWER}

Next: !p635, !f636

MAINS POWER SUPPLY

Next: p668, !f669

RESISTANCE ON / OFF SWITCH

{ISOLATEMAINSPOWER}<

Next: p1163, !f673

VOLTAGE AT CONNECTOR J8

{ISOLATEMAINSPOWER}
GAIN ACCESS TO PCB AS NECESSARY

Next: p680, !f681

TEMPERATURE DIFFERENTIAL FLOW AND RETURN CH

{ISOLATEMAINSPOWER}
ATTACH TEMPERATURE CLAMPS TO FLOW AND RETURN PIPES AS SHOWN

Next: !p712, !f713

OBSERVATION BOILER RESET A19

Next: p718, !f731

SYSTEM CHARGE PRESSURE

{ISOLATEMAINSPOWER}

Next: p785, !f786

SYSTEM CHARGE PRESSURE (TOO HIGH)

{ISOLATEMAINSPOWER}

Next: p825, !f826

PRESSURE EXPANSION VESSEL (CH)

{ISOLATEMAINSPOWER}
DRAIN PRIMARY CIRCUIT OF WATER

Next: !p831, !f832

INFORMATION FAULT CODE E00

Next: !p839, !f840

SENSOR FLOW

{ISOLATEMAINSPOWER}<

Next: p843, !f844

PRESSURE TIGHTNESS TEST

{ISOLATEMAINSPOWER}
ATTACH U-GAUGE TO GAS VALVE INLET PRESSURE TEST POINT

Next: p848, !f849

BURNER

{ISOLATEMAINSPOWER}<

Next: p1002, !f1003

HEAT EXCHANGER FLUE WAYS

{ISOLATEMAINSPOWER}<

Next: p1004, !f1005

INSPECTION HEAT EXCHANGER SUMP

{ISOLATEMAINSPOWER}<

Next: !p1017, !f1007

INSPECTION AIR INTAKE

{ISOLATEMAINSPOWER}
REMOVE AIR INTAKE FROM BOILER

Next: p1000, !f1016

FLAME SENSE ELECTRODE LEAD

{ISOLATEMAINSPOWER}<

Next: p1175, !f1020

FLAME SENSE ELECTRODE

{ISOLATEMAINSPOWER}
REMOVE FLAME SENSE ELECTRODE

Next: !p1158, !f1023

GAS INLET PRESSURE

{ISOLATEMAINSPOWER}
ATTACH PRESSURE GAUGE TO INLET PRESSURE TEST POINT

Next: p1018, !f1030

DIVERTER VALVE BODY

{ISOLATEMAINSPOWER}
REMOVE DIVERTER VALVE ACTUATOR HEAD

Next: !p1032, !f1033

FAN PRESSURE

{ISOLATEMAINSPOWER}<

Next: p1047, f1036

CONDENSATE TRAP AND DRAIN

{ISOLATEMAINSPOWER}
DISCONNECT CONDENSATE TRAP

Next: p1082, !f1040

BURNER

{ISOLATEMAINSPOWER}<

Next: p1041, !f1042

HEAT EXCHANGER FLUE WAYS

{ISOLATEMAINSPOWER}<

Next: p1043, !f1044

INSPECTION HEAT EXCHANGER SUMP

{ISOLATEMAINSPOWER}<

Next: !p1045, !f1046

PRESSURE GAS INLET AND DROP

{ISOLATEMAINSPOWER}
ATTACH PRESSURE GAUGE TO INLET PRESSURE TEST POINT

Next: p1059, ?1049, ?1051

GAS VALVE VOLTAGE

Next: !p1053, f1054

SPARKING PRESENT

{ISOLATEMAINSPOWER}<

Next: p1060, f1061

INSPECTION AIR INTAKE

{ISOLATEMAINSPOWER}
REMOVE AIR INTAKE FROM BOILER

Next: p1066, !f1067

RESISTANCE IGNITION LEAD

{ISOLATEMAINSPOWER}<

Next: p1068, !f1069

IGNITION ELECTRODE

{ISOLATEMAINSPOWER}

Next: p1070, !f1071

CONDENSATE TRAP AND DRAIN

{ISOLATEMAINSPOWER}
DISCONNECT CONDENSATE TRAP

Next: p1072, !f1073

HEAT EXCHANGER FLUE WAYS

{ISOLATEMAINSPOWER}<

Next: p1074, !f1075

INSPECTION HEAT EXCHANGER SUMP

{ISOLATEMAINSPOWER}<

Next: p1076, !f1077

BURNER

{ISOLATEMAINSPOWER}<

Next: !p1078, !f1079

INJECTOR

{ISOLATEMAINSPOWER}
REMOVE GAS VALVE AND INJECTOR ASSEMBLY

Next: p1039, !f1090

SYSTEM CHARGE PRESSURE

{ISOLATEMAINSPOWER}

Next: p1092, !f1093

PUMP RUNS

DHW TEMPERATURE SELECTOR TO MAXIMUM POSITION

Next: p1094, f1095

PUMP LIMPET TEST

Next: p1124, !f1101

PUMP HARNESS

{ISOLATEMAINSPOWER}

Next: !p1098, !f1099

SENSOR RETURN

{ISOLATEMAINSPOWER}<

Next: p1125, !f1126

SENSOR DHW

{ISOLATEMAINSPOWER}
REMOVE CONNECTOR J13 FROM THE PCB

Next: p1127, !f1128

INSPECTION EXTERNAL BYPASS

Next: p1129, !f1130

BYPASS

{ISOLATEMAINSPOWER}<

Next: p1131, !f1132

TEMPERATURE DIFFERENTIAL FLOW AND RETURN DHW

{ISOLATEMAINSPOWER}<

Next: p1133, f1134

TEMPERATURE DIFFERENTIAL FLOW AND RETURN CH

{ISOLATEMAINSPOWER}
ATTACH TEMPERATURE CLAMPS TO FLOW AND RETURN PIPES AS SHOWN

Next: p1137, !f1138

OBSERVATION RUN BOILER TO MAXIMUM DOES OVERHEAT OCCUR

ATTACH TEMPERATURE CLAMP TO BOILER FLOW PIPE AS SHOWN

Next: !p1139, ?1141, ?1143

DIVERTER VALVE BODY

{ISOLATEMAINSPOWER}
REMOVE DIVERTER VALVE ACTUATOR HEAD

Next: !p1152, !f1153

RESISTANCE FUSE PCB

{ISOLATEMAINSPOWER}<

Next: !p1164, !f1165

RESISTANCE SPARK GENERATOR ERA

{ISOLATEMAINSPOWER}<

Next: !p1173, !f1174

INSPECTION AIR INTAKE

{ISOLATEMAINSPOWER}
REMOVE AIR INTAKE FROM BOILER

Next: p1021, !f1181

DIVERTER VALVE HEAD POSITION

DHW TEMPERATURE SELECTOR TO MAXIMUM POSITION

Next: !p271, f272

PUMP RUNS

DHW TEMPERATURE SELECTOR TO MAXIMUM POSITION

Next: p289, f290

DIVERTER VALVE HEAD POSITION

ENSURE DHW DEMAND IS SATISFIED I.E. CYLINDER UP TO TEMPERATURE

Next: p452, f453

BYPASS

{ISOLATEMAINSPOWER}<

Next: !p460, !f461

GAS RATE

Next: p462, f463

DIVERTER VALVE MANUAL POSITION

{ISOLATEMAINSPOWER}<

Next: !p306, f307

PUMP LIMPET TEST

Next: p355, !f292

DIVERTER VALVE HEAD POSITION

DHW TEMPERATURE SELECTOR TO MAXIMUM POSITION

Next: !p296, f297

PUMP HARNESS

{ISOLATEMAINSPOWER}

Next: !p304, !f305

PUMP LIMPET TEST

Next: p316, !f315

PUMP HARNESS

{ISOLATEMAINSPOWER}

Next: !p312, !f359

BYPASS

{ISOLATEMAINSPOWER}<

Next: !p317, !f318

SENSOR DHW

{ISOLATEMAINSPOWER}
REMOVE CONNECTOR J13 FROM THE PCB

Next: !p357, !f356

GAS INLET PRESSURE

{ISOLATEMAINSPOWER}
ATTACH PRESSURE GAUGE TO INLET PRESSURE TEST POINT

Next: p406, !f407

SENSOR FLOW

{ISOLATEMAINSPOWER}<

Next: p408, !f409

SENSOR RETURN

{ISOLATEMAINSPOWER}<

Next: p410, !f411

SENSOR DHW

{ISOLATEMAINSPOWER}
REMOVE CONNECTOR J13 FROM THE PCB

Next: p412, !f413

CONDENSATE TRAP AND DRAIN

{ISOLATEMAINSPOWER}
DISCONNECT CONDENSATE TRAP

Next: p414, !f415

FLUE

Next: !p416, !f417

ROOM STAT/LINK OUTPUT

Next: p509, !f450

DIVERTER VALVE BODY

{ISOLATEMAINSPOWER}
REMOVE DIVERTER VALVE ACTUATOR HEAD

Next: p522, !f455

SENSOR FLOW

{ISOLATEMAINSPOWER}<

Next: p464, !f465

SENSOR RETURN

{ISOLATEMAINSPOWER}<

Next: p530, !f533

GAS INLET PRESSURE

{ISOLATEMAINSPOWER}
ATTACH PRESSURE GAUGE TO INLET PRESSURE TEST POINT

Next: p482, !f483

BURNER INJECTOR

{ISOLATEMAINSPOWER}<

Next: p484, !f485

FLUE

Next: !p487, !f489

SENSOR FLOW

{ISOLATEMAINSPOWER}<

Next: p510, !f511

SENSOR RETURN

{ISOLATEMAINSPOWER}<

Next: !p514, !f513

SECONDARY EXPANSION VESSEL CHARGE PRESSURE

{ISOLATEMAINSPOWER}<

Next: !p520, !f521

BYPASS

{ISOLATEMAINSPOWER}<

Next: p523, !f524

PUMP LIMPET TEST

Next: !p525, !f526

CONDENSATE TRAP AND DRAIN

{ISOLATEMAINSPOWER}
DISCONNECT CONDENSATE TRAP

Next: !p531, !f532

OBSERVATION BOILER RESET

Next: !p592, !f593

OBSERVATION BOILER RESET

Next: !p596, !f597

SYSTEM CHARGE PRESSURE

{ISOLATEMAINSPOWER}

Next: p677, !f632

VOLTAGE FAN DEMAND AT PCB

{ISOLATEMAINSPOWER}<

Next: p663, !f662

RESISTANCE HARNESS FAN

{ISOLATEMAINSPOWER}
DISCONNECT FAN HARNESS FROM THE FAN AND PCB

Next: !p664, !f665

ON/OFF SWITCH VOLTAGE OUT

Next: !p1166, f671

PUMP RUNS

DHW TEMPERATURE SELECTOR TO MAXIMUM POSITION

Next: p689, f679

SENSOR FLOW

{ISOLATEMAINSPOWER}<

Next: p684, !f685

PUMP HARNESS

{ISOLATEMAINSPOWER}

Next: !p682, !f683

SENSOR RETURN

{ISOLATEMAINSPOWER}<

Next: p697, !f687

INSPECTION EXTERNAL BYPASS

Next: p696, !f701

PUMP LIMPET TEST

Next: p678, !f695

BYPASS

{ISOLATEMAINSPOWER}<

Next: p702, !f703

SENSOR DHW

{ISOLATEMAINSPOWER}
REMOVE CONNECTOR J13 FROM THE PCB

Next: p688, !f700

TEMPERATURE DIFFERENTIAL FLOW AND RETURN DHW

{ISOLATEMAINSPOWER}<

Next: p704, f711

TEMPERATURE DIFFERENTIAL FLOW AND RETURN CH

{ISOLATEMAINSPOWER}
ATTACH TEMPERATURE CLAMPS TO FLOW AND RETURN PIPES AS SHOWN

Next: p705, !f747

OBSERVATION RUN BOILER TO MAXIMUM DOES OVERHEAT OCCUR

ATTACH TEMPERATURE CLAMP TO BOILER FLOW PIPE AS SHOWN

Next: !p706, ?707, ?709

PRESSURE TIGHTNESS TEST

{ISOLATEMAINSPOWER}
ATTACH U-GAUGE TO GAS VALVE INLET PRESSURE TEST POINT

Next: p732, !f720

FLAME SENSE ELECTRODE

{ISOLATEMAINSPOWER}
REMOVE FLAME SENSE ELECTRODE

Next: p721, !f722

CONDENSATE TRAP AND DRAIN

{ISOLATEMAINSPOWER}
DISCONNECT CONDENSATE TRAP

Next: p723, !f724

INSPECTION FLUE

Next: p725, !f726

HEAT EXCHANGER FLUE WAYS

{ISOLATEMAINSPOWER}<

Next: p927, !f918

PRESSURE STANDING RETURN

{ISOLATEMAINSPOWER}
ATTACH U-GAUGE TO GAS VALVE INLET PRESSURE TEST POINT

Next: p719, !f748

SYSTEM PRESSURE SENSOR

{ISOLATEMAINSPOWER}
GAIN ACCESS TO PCB CONNECTIONS AS NECESSARY

Next: p775, !f774

SYSTEM PRESSURE SENSOR VOLTAGE

{ISOLATEMAINSPOWER}
GAIN ACCESS TO PCB CONNECTIONS AS NECESSARY

Next: !p782, !f783

SYSTEM PRESSURE SENSOR

{ISOLATEMAINSPOWER}
GAIN ACCESS TO PCB CONNECTIONS AS NECESSARY

Next: p787, !f788

SYSTEM PRESSURE SENSOR VOLTAGE

{ISOLATEMAINSPOWER}
GAIN ACCESS TO PCB CONNECTIONS AS NECESSARY

Next: p789, !f790

SENSOR DHW

{ISOLATEMAINSPOWER}
REMOVE CONNECTOR J13 FROM THE PCB

Next: p791, !f792

SENSOR FLOW

{ISOLATEMAINSPOWER}<

Next: p793, !f794

SENSOR RETURN

{ISOLATEMAINSPOWER}<

Next: p934, !f796

PRESSURE EXPANSION VESSEL (CH)

{ISOLATEMAINSPOWER}
DRAIN PRIMARY CIRCUIT OF WATER

Next: !p819, !f820

OBSERVATION SYSTEM PRESSURE RISE (E01)

{ISOLATEMAINSPOWER}

Next: p827, !f828

OBSERVATION SYSTEM PRESSURE RISE

Next: p829, f830

SYSTEM PRESSURE SENSOR

{ISOLATEMAINSPOWER}
GAIN ACCESS TO PCB CONNECTIONS AS NECESSARY

Next: p833, !f834

SYSTEM PRESSURE SENSOR VOLTAGE

{ISOLATEMAINSPOWER}
GAIN ACCESS TO PCB CONNECTIONS AS NECESSARY

Next: !p835, !f836

OBSERVATION BOILER RESET (E03)

Next: p1091, !f846

FLAME SENSE ELECTRODE

{ISOLATEMAINSPOWER}
REMOVE FLAME SENSE ELECTRODE

Next: p850, !f851

CONDENSATE TRAP AND DRAIN

{ISOLATEMAINSPOWER}
DISCONNECT CONDENSATE TRAP

Next: p852, !f853

INSPECTION FLUE

Next: p854, !f855

HEAT EXCHANGER FLUE WAYS

{ISOLATEMAINSPOWER}<

Next: p922, !f923

DIVERTER VALVE BODY

{ISOLATEMAINSPOWER}
REMOVE DIVERTER VALVE ACTUATOR HEAD

Next: !p861, !f862

INSPECTION HEAT EXCHANGER SUMP

{ISOLATEMAINSPOWER}<

Next: !p924, !f932

INSPECTION HEAT EXCHANGER SUMP

{ISOLATEMAINSPOWER}<

Next: !p919, !f933

VOLTAGE FAN AT PCB

{ISOLATEMAINSPOWER}
REMOVE THE CONNECTOR FROM THE FAN AND MAKE SAFE
NO DEMAND

Next: p935, !f936

VOLTAGE FAN DEMAND AT PCB

{ISOLATEMAINSPOWER}<

Next: p937, !f938

RESISTANCE HARNESS FAN

{ISOLATEMAINSPOWER}
DISCONNECT FAN HARNESS FROM THE FAN AND PCB

Next: !p939, !f940

GAS INLET PRESSURE

{ISOLATEMAINSPOWER}
ATTACH PRESSURE GAUGE TO INLET PRESSURE TEST POINT

Next: p997, !f996

INSPECTION FLUE

Next: p998, !f999

CONDENSATE TRAP AND DRAIN

{ISOLATEMAINSPOWER}
DISCONNECT CONDENSATE TRAP

Next: p1008, !f1001

System Information

  • Total Tests: 411
  • Sequence Logic: Decoded from encrypted .seq file
  • Navigation: Dynamic based on pass/fail results
  • Source: 4731307 GW SWIFTFLOW 100 SIT Control