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:

41 590 43

WARNING - IMPORTA

Next: &584, *

NO FAULT FOUND

Next: nff

4159043 POTTERTON SUPRIMA 40 L

Next: &3, !f2

TYPE OF DIAGNOSTIC PROCEDURE

PLEASE SELECT FROM O

Next: &5, !f4

POWER UP

Next: &30, f6

FAN RUNS BURNER IGNITES AND ESTABLISHES CH DEMAND

ATTACH "U"GAUGE TO OUTLET PRESSURE TEST POINT

Next: &363, ?96, ?98, ?100, ?210, ?344

FURTHER INVESTIGATION FUSE (OBJECT) OUTSIDE MODEL

NOT CALLED IN MODEL

Next: &nff, ?1003, ?1034

FURTHER INVESTIGATION OVERHEAT (OBJECT)

NOT CALLED IN MODEL

Next: &nff, f274

OPERATION CH

CH DEMAND
BOILER THERMOSTAT SET TO MAX

Next: &525, ?364, ?366, ?370, ?437, ?439, ?526

ANTI CYCLE TIME

Next: &559, f552

OVERRUN FAN

APPLY CH DEMAND

Next: &545, !f547

OVERRUN PUMP

PUMP IS NOT AN INTEGRAL PART OF THE APPLIANCE AND WILL BE LOCATED ELSE WHERE

Next: &524, f549

FAULT CODE PAGE

Next: &nff, !f556

DIAGNOSIS BY FUNCTIONAL SEQUENCE

Next: &nff, !f558

DHW DEMAND

Next: &1267, !f1073

FAULT CODES

DOES NOT REQUIRE GRAPHICS NOT CALLED BY MODEL

Next: &nff, ?563, ?567, ?571

BOILER IDENTIFICATION

Next: &1, !f1074

TYPE OF DIAGNOSTIC PROCEDURE

PLEASE SELECT FROM O

Next: &1077, !f1076

POWER UP

Next: &1095, f1078

FAN RUNS BURNER IGNITES AND ESTABLISHES CH DEMAND

ATTACH "U"GAUGE TO OUTLET PRESSURE TEST POINT.

Next: &1194, ?1096, ?1098, ?1100, ?1102, ?1104

OPERATION CH

CH DEMAND
BOILER THERMOSTAT SET TO MAX

Next: &1255, ?1195, ?1197, ?1199, ?1201, ?1203, ?1205

OVERRUN FAN

APPLY CH DEMAND

Next: &1257, !f1256

OVERRUN PUMP

PUMP IS NOT AN INTEGRAL PART OF THE APPLIANCE AND WILL BE LOCATED ELSE WHERE

Next: &1261, f1258

ANTI CYCLE TIME

Next: &1265, f1262

DHW DEMAND

Next: &nff, !f1266

4159043 POTTERTON SUPRIMA 40 L

Next: &1075, !f1268

DIAGNOSIS BY FUNCTIONAL SEQUENCE

Next: &nff, !f1270

FAULT CODE PAGE

Next: &nff, !f1272

FURTHER INVESTIGATION OVERHEAT (OBJECT) MK1

NOT CALLED IN MODEL

Next: &nff, f1298

OPEN OR SHORTCIRCUIT

GAS VALVE

Next: End

FURTHER INVESTIGATION FUSE F1

PUMP

Next: End

FURTHER INVESTIGATION FUSE F1

FAN

Next: End

OPEN OR SHORTCIRCUITF2 APPLIANCE

GAS VALVE

Next: End

FURTHER INVESTIGATION FUSE F1F2 APPLIANCE

PUMP

Next: End

FURTHER INVESTIGATION FUSE F1F2 APPLIANCE

FAN

Next: End

DHW TEST EN D OF MODEL NFF

Z REDIRECTS BY HTML LINK

Next: End

BOILER TYPE ID

Z REDIRECTS BY HTML LINK

Next: End

FOR TYPE DIAG PROCEDURE

Z DIRECTION CHOICE OR CONTINUE MK1

Next: End

FAN RUNS CH DEMAND

Next: End

BLOWN STAND BY MODE

MAIN FUSE FUSED SPUR F1

Next: End

POWER UP_NO SWITCH LIVE

Next: End

BLOWN STANDBY MODE

FUSE MAIN PCB

Next: End

LED

PCB

Next: End

CONTAMINATION COMBSTION AIR

FLUE SEALS

Next: End

AIR INTAKE CONTAMINATION

COMBUSTION CHAMBER

Next: End

MECHANICAL PHYSICAL OPERATION

FAN

Next: End

FLUEWAYS

HEAT EXCHANGER PRIMARY

Next: End

BLOCKED OR DAMAGED

FLUE

Next: End

BURNER IGNITES BUT DOES NOT ESTABLISH

GAS VALVE INLET PRESSURE

Next: End

BURNER IGNITES BUT DOES NOT ESTABLISH

BURNER

Next: End

BURNER IGNITES BUT DOES NOT ESTABLISH

FLUE

Next: End

POOR SUPPLY

GAS VALVE INLET PRESSURE

Next: End

VOLTAGE TO GAS VALVE

PCB

Next: End

BLOCKED OR DAMAGED

BURNER

Next: End

GAP DAMAGE

ELECTRODE

Next: End

FAILS TO PROVE FAN RUNS

AIR PRESSURE SWITCH

Next: End

PUMP SU FAN RUNS SPARKING DOES NOT OCCUR

PCB

Next: End

WIRING TO PUMP

HARNESS WIRING TO PUMP

Next: End

LIMPET TEST

PUMP

Next: End

BYPASS SYSTEM SPARKING DOES NOT OCCUR LIMPET

Next: End

STICKING

PUMP

Next: End

BLOCKED OR DAMAGED FAN DOES NOT RUN

TUBE IMPULSE AIR PRESSURE

Next: End

IMPELLER

PUMP

Next: End

BYPASS SYSTEM SPARKING DOES NOT OCCUR

Next: End

BLOCKED OR DAMAGED FAN RUNS SPARKING DOES NOT OCCUR

TUBE IMPULSE AIR PRESSURE

Next: End

DAMAGED

HARNESS SPARK LEAD

Next: End

DAMAGED

ELECTRODE

Next: End

INCORRECT

ELECTRODE SPARK GAP

Next: End

FAN RUNS CH DEMAND

Next: End

BLOCKED OR DAMAGED FAN DOES NOT RUN

TUBE IMPULSE AIR PRESSURE

Next: End

FAN RUNS

SENSOR TEMP OVERHEAT STAT

Next: End

FAN RUNS

SENSOR - PRIMARY (CONTROL)

Next: End

BLOWN STAND BY MODE

MAIN FUSE FUSED SPUR F1

Next: End

UNDER PRESSURE

EXPANSION VESSEL

Next: End

FAILS TO PROVE FAN RUNS

AIR PRESSURE SWITCH

Next: End

CH OPERATION FAILURE TO REFIRE

Next: End

OPERATION CH OK TOO COLD BEFORE REFIRE

Next: End

OPERATION CH OK NO REFIRE

SENSOR - PRIMARY (CONTROL)

Next: End

OPERATION CH OK NO REFIRE

Next: End

CPERATION CH OK NO REFIRE FAN RUNS

SENSOR TEMP OVERHEAT STAT

Next: End

BOILER TEMP LOW SYSTEM TEMP LOW

GAS VALVE INLET PRESSURE

Next: End

BURNER PRESSURE

GAS VALVE ADJUSTMENT

Next: End

CALIBRATION LOW BOILER TEMP LOW SYSTEM TEMP LOW

SENSOR - PRIMARY (CONTROL)

Next: End

BOILER TO TEMP RADS COOL

PUMP

Next: End

CH OPERATION

Next: End

LOW BOILER TO TEMP RADS COOL

EXPANSION TANK LEVEL

Next: End

OPEN VENT SYSTEMBOILER TO TEMP RADS COOL

PUMP

Next: End

OPEN VENT SYSTEMCH OPERATION

Next: End

BOILR SHUTS DOWN PREMATURELY CHOPERATION

PUMP

Next: End

BOILER SHUTS DOWN PREMATURLEY BOILER NOISY

Next: End

CH OPERATION BOILER NOISY

SENSOR - PRIMARY (CONTROL)

Next: End

FAN VOERRUN FUNCTION

PCB

Next: End

OVERRUN FUNCTION

SENSOR - PRIMARY (CONTROL)

Next: End

ANTICYCLE TIME FUNCTION

SENSOR - PRIMARY (CONTROL)

Next: End

DHW DEMAND

Next: End

CASE REMOVAL

Z DIRECTION CHOICE OR CONTINUE MK1

Next: End

FUNCTIONAL SEQUENCE PAGE

Z DUMMYS FOREXTERNAL OBJECTS MK1

Next: End

FAULT CODE PAGE

Z DUMMYS FOREXTERNAL OBJECTS MK1

Next: End

BURNERIGNITES

HARNESS ELECTRODE SENSE

Next: End

BURNERIGNITES

HARNESS ELECTRODE SENSE

Next: End

CALIBRATION OPERATION CH

SENSOR - PRIMARY (CONTROL)

Next: End

OPERATIONCH BOILER NOISY

GAS RATE

Next: End

MK1 WITH POTFURTHER INVESTIGATION OVERHEAT BOILR SHUTS DOWN PREMATURELY

PUMP

Next: End

MK1 WITH POTFURTHER INVESTIGATION OVERHEAT BOILER NOISE

Next: End

MK1 WITH POTFAN RUNS LOW BOILER GOES TO OVERHEAT BOILER NOISEY

SENSOR - PRIMARY (CONTROL)

Next: End

CALIBRATION FURTHER INVESTIGATION OVERHEAY MK1

SENSOR - PRIMARY (CONTROL)

Next: End

MK1 WITH POTHIGH BOILER GOES TO OVER HEATBOILER SHUTS DOWN PREMATURELY

GAS RATE

Next: End

BLOCKED OR DAMAGED FAN RUNS SPARKING DOES NOT OCCUR

TUBE IMPULSE AIR PRESSURE

Next: End

DAMAGED

HARNESS SPARK LEAD

Next: End

DAMAGED

ELECTRODE

Next: End

INCORRECT

ELECTRODE SPARK GAP

Next: End

CASE REMOVAL

Z DIRECTION CHOICE OR CONTINUE

Next: End

BLOWN STANDBY MODE

FUSE MAIN PCB

Next: End

BLOCKED OR DAMAGED

BURNER

Next: End

GAP DAMAGE

ELECTRODE

Next: End

BURNER IGNITES BUT DOES NOT ESTABLISH

GAS VALVE INLET PRESSURE

Next: End

BURNER IGNITES BUT DOES NOT ESTABLISH

BURNER

Next: End

BURNER IGNITES BUT DOES NOT ESTABLISH

FLUE

Next: End

WIRING TO PUMP

HARNESS WIRING TO PUMP

Next: End

POOR SUPPLY

GAS VALVE INLET PRESSURE

Next: End

VOLTAGE TO GAS VALVE

PCB

Next: End

POWER UP_NO SWITCH LIVE

Next: End

PUMP SU FAN RUNS SPARKING DOES NOT OCCUR

PCB

Next: End

FURTHER INVESTIGATION OVERHEAT BOILR SHUTS DOWN PREMATURELY

PUMP

Next: End

FURTHER INVESTIGATION OVERHEAT BOILER NOISE

Next: End

FAN RUNS LOW BOILER GOES TO OVERHEAT BOILER NOISEY

SENSOR - PRIMARY (CONTROL)

Next: End

LED

PCB

Next: End

FAN RUNS

SENSOR TEMP OVERHEAT STAT

Next: End

HIGH BOILER GOES TO OVER HEATBOILER SHUTS DOWN PREMATURELY

GAS RATE

Next: End

LIMPET TEST

PUMP

Next: End

STICKING

PUMP

Next: End

IMPELLER

PUMP

Next: End

MECHANICAL PHYSICAL OPERATION

FAN

Next: End

FLUEWAYS

HEAT EXCHANGER PRIMARY

Next: End

BLOCKED OR DAMAGED

FLUE

Next: End

CONTAMINATION COMBSTION AIR

FLUE SEALS

Next: End

AIR INTAKE CONTAMINATION

COMBUSTION CHAMBER

Next: End

CALIBRATION LOW BOILER TEMP LOW SYSTEM TEMP LOW

SENSOR - PRIMARY (CONTROL)

Next: End

FOR TYPE DIAG PROCEDURE

Z DIRECTION CHOICE OR CONTINUE

Next: End

BOILR SHUTS DOWN PREMATURELY CHOPERATION

PUMP

Next: End

BOILER SHUTS DOWN PREMATURLEY BOILER NOISY

Next: End

CH OPERATION BOILER NOISY

SENSOR - PRIMARY (CONTROL)

Next: End

OPERATIONCH BOILER NOISY

GAS RATE

Next: End

CPERATION CH OK NO REFIRE FAN RUNS

SENSOR TEMP OVERHEAT STAT

Next: End

BYPASS SYSTEM SPARKING DOES NOT OCCUR

Next: End

BYPASS SYSTEM SPARKING DOES NOT OCCUR LIMPET

Next: End

CH OPERATION FAILURE TO REFIRE

Next: End

BURNER PRESSURE

GAS VALVE ADJUSTMENT

Next: End

BOILER TEMP LOW SYSTEM TEMP LOW

GAS VALVE INLET PRESSURE

Next: End

OPERATION CH OK NO REFIRE

SENSOR - PRIMARY (CONTROL)

Next: End

OPERATION CH OK NO REFIRE

Next: End

OPERATION CH OK TOO COLD BEFORE REFIRE

Next: End

UNDER PRESSURE

EXPANSION VESSEL

Next: End

BOILER TO TEMP RADS COOL

PUMP

Next: End

CH OPERATION

Next: End

LOW BOILER TO TEMP RADS COOL

EXPANSION TANK LEVEL

Next: End

OPEN VENT SYSTEMBOILER TO TEMP RADS COOL

PUMP

Next: End

OPEN VENT SYSTEMCH OPERATION

Next: End

FAN VOERRUN FUNCTION

PCB

Next: End

FAN RUNS

SENSOR - PRIMARY (CONTROL)

Next: End

OVERRUN FUNCTION

SENSOR - PRIMARY (CONTROL)

Next: End

ANTICYCLE TIME FUNCTION

SENSOR - PRIMARY (CONTROL)

Next: End

FAULT CODE PAGE

Z DUMMYS FOREXTERNAL OBJECTS

Next: End

FUNCTIONAL SEQUENCE PAGE

Z DUMMYS FOREXTERNAL OBJECTS

Next: End

POLARITY FAULT

PCB

Next: End

FAN RUNSFAULT CODE RED EVERY FIVE SECS

SENSOR - PRIMARY (CONTROL)

Next: End

INCORRECT POWER TO GAS VALVE

PCB

Next: End

FURTHER INVESTIGATION FUSE F1 PILOT SOLENOID

HARNESS GAS VALVE

Next: End

FURTHER INVESTIGATION FUSE F1

HARNESS PUMP

Next: End

FUSE F1

FURTHER INVESTIGATION CHOICE

Next: End

FURTHER INVESTIGATION FUSE F1

HARNESS - FAN

Next: End

FURTHER INVESTIGATION FUSE F1 PILOT SOLENOIDF2 APPLIANCE

HARNESS GAS VALVE

Next: End

FURTHER INVESTIGATION FUSE F1F2 APPLIANCE

HARNESS PUMP

Next: End

FUSE F2 APPLIANCE

FURTHER INVESTIGATION CHOICE

Next: End

FURTHER INVESTIGATION FUSE F1F2 APPLIANCE

HARNESS - FAN

Next: End

SUPPLY FAULT

Next: End

FURTHER INVESTIGATION F1

Z DIRECTION CHOICE OR CONTINUE MK1

Next: End

FAN RUNS BURNER IGNITES_VOLTAGE AT FAN

Z REDIRECTS BY HTML LINK MK1

Next: End

FAN DOES NOT RUN

FAN

Next: End

FURTHER IN VESTIGATION F2

Z DIRECTION CHOICE OR CONTINUE MK1

Next: End

FURTHER INVESTIGATION LED PCB FAULT TO FAN RUNS BURNER IGNITES AND ESTABLISHES

Z REDIRECTS BY HTML LINK MK1

Next: End

FURTHER INVESTIGATION F1

Z DIRECTION CHOICE OR CONTINUE

Next: End

FAULT

HARNESS - FAN

Next: End

AIR INTAKE CONTAMINATION

FLUE

Next: End

FLAME LIFT OFF

FLUE SEALS

Next: End

FLAME SENSE BURNER IGNITES DOES NOT ESTABLISH

PCB

Next: End

SPARKING OCCURS BURNER DOES NOT LIGHT

GAS VALVE

Next: End

SPARKING OCCURS BURNER DOES NOT LIGHT

HARNESS GAS VALVE

Next: End

BOCKED OR DAMAGED SPARKING OCCURS BURNER DOESNOT IGNITE

BURNER INJECTOR

Next: End

FAN DOES NOT RUN

AIR PRESSURE SWITCH

Next: End

CH DEMAND SPARKING DOES NOT OCCUR

PUMP

Next: End

FAN RUNS SPARKING DOES NOT OCCUR LIMPET

FLOW SWITCH

Next: End

PUMP CAVITATION

FAULT AIR/CAVITATION

Next: End

FAN RUNS SPARKING DOES NOT OCCUR

FLOW SWITCH

Next: End

FAN RUNS SPARKING DOES NOT OCCUR

PCB

Next: End

FAN DOES NOT RUN

FAN

Next: End

FAULT

HARNESS - FAN

Next: End

FAN DOES NOT RUN

AIR PRESSURE SWITCH

Next: End

OVER HEAT STAT FAN RUNS

HARNESS SENSOR TEMP OVERHEAT STAT

Next: End

FAN RUNS FURTHER INVESTIGATION OVERHEAT

Z DIRECTION CHOICE OR CONTINUE MK1

Next: End

OVER HEAT STAT FAN RUNS

HARNESS SENSOR TEMP OVERHEAT STAT

Next: End

FAN DOES NOT RUN

PCB

Next: End

FAN RUNS

HARNESS SENSOR TEMP PRIMARY

Next: End

EXPANSION CONNECTION

Next: End

OPERATION CH TOO LONG FOR REFIRECIRCULATION

Next: End

OPERATION CH OK NO REFIRE FAN DOES NOT RUN

PCB

Next: End

OPERATION CH OPERATION OK GOES TO OVER HEAT

Z REDIRECTS BY HTML LINK MK1

Next: End

LOW GAS RATE CH OPERATION

BURNER INJECTOR

Next: End

LOW SYSTEM TEMP POT

PCB

Next: End

CH OPERATION BOILER UP TO TEMP RADS COLD

Next: End

OPEN VENT SYSTEMCH OPERATION BOILER UP TO TEMP RADS COLD

Next: End

PUMP OVERRUN FUNCTION

PCB

Next: End

ANTICYCLE TIME FUNCTION

PCB

Next: End

FLAME SENSE

PCB

Next: End

BURNER IGNITES

ELECTRODE

Next: End

FLAME SENSE

PCB

Next: End

BURNER IGNITES

ELECTRODE

Next: End

POTENTIOMETER TEMP CONTROL CH OP BOILER NOISY 2

PCB

Next: End

CH OPERATION NOISY

HEAT EXCHANGER PRIMARY

Next: End

CH OPERATION NOISEY

Next: End

MK1 WITH POTPOTENTIOMETER TEMP CONTROL CH OP BOILER NOISY

PCB

Next: End

MK1 WITH POTNOISE

HEAT EXCHANGER PRIMARY

Next: End

MK1 WITH POTFURTHER INVESTIGATIONOVERHEAT

Next: End

FURTHER IN VESTIGATION F2

Z DIRECTION CHOICE OR CONTINUE

Next: End

SPARKING OCCURS BURNER DOES NOT LIGHT

HARNESS GAS VALVE

Next: End

BOCKED OR DAMAGED SPARKING OCCURS BURNER DOESNOT IGNITE

BURNER INJECTOR

Next: End

FLAME SENSE BURNER IGNITES DOES NOT ESTABLISH

PCB

Next: End

SPARKING OCCURS BURNER DOES NOT LIGHT

GAS VALVE

Next: End

CH DEMAND SPARKING DOES NOT OCCUR

PUMP

Next: End

FAN RUNS SPARKING DOES NOT OCCUR

PCB

Next: End

FAN RUNS BURNER IGNITES_VOLTAGE AT FAN

Z REDIRECTS BY HTML LINK

Next: End

FURTHER INVESTIGATION LED PCB FAULT TO FAN RUNS BURNER IGNITES AND ESTABLISHES

Z REDIRECTS BY HTML LINK

Next: End

FAN RUNS FURTHER INVESTIGATION OVERHEAT

Z DIRECTION CHOICE OR CONTINUE

Next: End

POTENTIOMETER TEMP CONTROL CH OP BOILER NOISY

PCB

Next: End

NOISE

HEAT EXCHANGER PRIMARY

Next: End

FURTHER INVESTIGATIONOVERHEAT

Next: End

FAN RUNS SPARKING DOES NOT OCCUR LIMPET

FLOW SWITCH

Next: End

PUMP CAVITATION

FAULT AIR/CAVITATION

Next: End

FAN RUNS SPARKING DOES NOT OCCUR

FLOW SWITCH

Next: End

FLAME LIFT OFF

FLUE SEALS

Next: End

AIR INTAKE CONTAMINATION

FLUE

Next: End

LOW SYSTEM TEMP POT

PCB

Next: End

POTENTIOMETER TEMP CONTROL CH OP BOILER NOISY 2

PCB

Next: End

CH OPERATION NOISY

HEAT EXCHANGER PRIMARY

Next: End

CH OPERATION NOISEY

Next: End

FAN RUNS

HARNESS SENSOR TEMP PRIMARY

Next: End

FAN DOES NOT RUN

PCB

Next: End

OPERATION CH OPERATION OK GOES TO OVER HEAT

Z REDIRECTS BY HTML LINK

Next: End

LOW GAS RATE CH OPERATION

BURNER INJECTOR

Next: End

OPERATION CH OK NO REFIRE FAN DOES NOT RUN

PCB

Next: End

EXPANSION CONNECTION

Next: End

CH OPERATION BOILER UP TO TEMP RADS COLD

Next: End

OPEN VENT SYSTEMCH OPERATION BOILER UP TO TEMP RADS COLD

Next: End

OPERATION CH TOO LONG FOR REFIRECIRCULATION

Next: End

PUMP OVERRUN FUNCTION

PCB

Next: End

ANTICYCLE TIME FUNCTION

PCB

Next: End

INCORRECT POLARITY

Next: End

FAN DOES NOT RUNFAULT CODE RED EVERY FIVE SECS

PCB

Next: End

FAN RUNSFAULT CODE RED EVERY FIVE SECS

HARNESS SENSOR TEMP PRIMARY

Next: End

FALSE FLAME SENSED

PCB

Next: End

LETTING BY SLOW SHUT OFF

GAS VALVE

Next: End

SUPPLY FAULT

Next: End

FAN RUNS SPARKING OCCURS BURNER DOES NOT IGNITE

CHARACTERISTIC TEST FROM FAN RUNS BURNER IGNITES AND ESTABLISHES CH DEMAND

Next: p190

F1

CHARACTERISTIC TEST FROM FURTHER INVESTIGATION FUSE (OBJECT)

Next: p1004

F2

CHARACTERISTIC TEST FROM FURTHER INVESTIGATION FUSE (OBJECT)

Next: p1035

FAN DOES NOT RUN

CHARACTERISTIC TEST FROM FAN RUNS BURNER IGNITES AND ESTABLISHES CH DEMAND

Next: p1097

FAN RUNS SPARKING DOES NOT OCCUR

CHARACTERISTIC TEST FROM FAN RUNS BURNER IGNITES AND ESTABLISHES CH DEMAND

Next: p1099

FAN RUNS SPARKING OCCURS BURNER DOES NOT IGNITE

CHARACTERISTIC TEST FROM FAN RUNS BURNER IGNITES AND ESTABLISHES CH DEMAND

Next: p1101

BURNER IGNITES BUT DOES NOT ESTABLISH

CHARACTERISTIC TEST FROM FAN RUNS BURNER IGNITES AND ESTABLISHES CH DEMAND

Next: p1103

BURNER IGNITES BUT BAFFLES OUT OR LIFTS OFF

CHARACTERISTIC TEST FROM FAN RUNS BURNER IGNITES AND ESTABLISHES CH DEMAND

Next: p1105

BOILER NOISY

CHARACTERISTIC TEST FROM OPERATION CH

Next: p1196

BOILER UP TO TEMP RADS COLD

CHARACTERISTIC TEST FROM OPERATION CH

Next: p1198

BOILER TEMP LOW SYSTEM TEMP LOW

CHARACTERISTIC TEST FROM OPERATION CH

Next: p1200

OPERATION OK BUT BOILER GOES TO OVER HEAT

CHARACTERISTIC TEST FROM OPERATION CH

Next: p1202

OPERATION OK BOILER AND SYSTEM REACHES TEMP BUT GETS TOO COOL BEFORE REFIRING

CHARACTERISTIC TEST FROM OPERATION CH

Next: p1204

SYSTEM PRESSURE RISE EXCESSIVE

CHARACTERISTIC TEST FROM OPERATION CH

Next: p1206

TEMP DIFF INCORRECT LOCAL BOILING

CHARACTERISTIC TEST

Next: !p1294

DIFFERENTIAL OK

CHARACTERISTIC TEST

Next: !p1296

TEMP DIFF INCORRECT LOCAL BOILING

CHARACTERISTIC TEST

Next: !p1321

DIFFERENTIAL OK

CHARACTERISTIC TEST

Next: !p1323

BURNER IGNITES BUT DOES NOT ESTABLISH

CHARACTERISTIC TEST FROM FAN RUNS BURNER IGNITES AND ESTABLISHES CH DEMAND

Next: p211

TEMP DIFF INCORRECT LOCAL BOILING

CHARACTERISTIC TEST

Next: !p308

DIFFERENTIAL OK

CHARACTERISTIC TEST

Next: !p310

BURNER IGNITES BUT BAFFLES OUT OR LIFTS OFF

CHARACTERISTIC TEST FROM FAN RUNS BURNER IGNITES AND ESTABLISHES CH DEMAND

Next: p345

BOILER NOISY

CHARACTERISTIC TEST FROM OPERATION CH

Next: p365

BOILER UP TO TEMP RADS COLD

CHARACTERISTIC TEST FROM OPERATION CH

Next: p530

BOILER TEMP LOW SYSTEM TEMP LOW

CHARACTERISTIC TEST FROM OPERATION CH

Next: p371

TEMP DIFF INCORRECT LOCAL BOILING

CHARACTERISTIC TEST

Next: !p428

DIFFERENTIAL OK

CHARACTERISTIC TEST

Next: !p430

OPERATION OK BUT BOILER GOES TO OVER HEAT

CHARACTERISTIC TEST FROM OPERATION CH

Next: p478

OPERATION OK BOILER AND SYSTEM REACHES TEMP BUT GETS TOO COOL BEFORE REFIRING

CHARACTERISTIC TEST FROM OPERATION CH

Next: p440

SYSTEM PRESSURE RISE EXCESSIVE

CHARACTERISTIC TEST FROM OPERATION CH

Next: p527

FLASHING ONCE EVERY FIVE SECONDS

CHARACTERISTIC TEST FROM FAULT CODES

Next: p575

FLASHING RED ORANGE ONCE EVERY 5 SECONDS

CHARACTERISTIC TEST FROM FAULT CODES

Next: p568

CONTINUOUS RED

CHARACTERISTIC TEST FROM FAULT CODES

Next: p572

FAN DOES NOT RUN

CHARACTERISTIC TEST FROM FAN RUNS BURNER IGNITES AND ESTABLISHES CH DEMAND

Next: p106

FAN RUNS SPARKING DOES NOT OCCUR

CHARACTERISTIC TEST FROM FAN RUNS BURNER IGNITES AND ESTABLISHES CH DEMAND

Next: p99

27/02/2014 14:50:42 1403_1_50_1 19/03/2014 12:54:05

27/02/2014 15:05:19

Next: End

FUSE FURTHER INVESTIGATION F1

Next: !p11, !f12

RESISTANCE GAS VALVE SOLENOID

DISCONNECT THE MOLEX PLUG FROM THE GAS VALVE

Next: !p1007, !f1008

RESISTANCE PUMP

THE PUMP IS NOT AN I

Next: !p1028, !f1029

RESISTANCE FAN

DISCONNECT VIOLET LEADS FROM THE FAN

Next: !p1032, !f1033

RESISTANCE GAS VALVE SOLENOID

DISCONNECT THE MOLEX PLUG FROM THE GAS VALVE

Next: !p1038, !f1039

RESISTANCE PUMP

THE PUMP IS NOT AN I

Next: !p1059, !f1060

RESISTANCE FAN

DISCONNECT VIOLET LEADS FROM THE FAN

Next: !p1063, !f1064

VOLTAGE MAINS POWER INPUT TO APPLIANCE

REMOVE CONTROL BOX COVER

Next: p1079, f1080

RESISTANCE FUSE F1 (FUSED SPUR)

REMOVE FUSE FROM FUSED SPUR

Next: !p1081, f1082

FUSE FURTHER INVESTIGATION F1

Next: !p1083, !f1084

VOLTAGE BOILER SWITCHED LIVE

THERMOSTAT TO OFF POSITION

Next: p1087, !f1088

FUSE FURTHER INVESTIGATION F2

Next: !p1091, !f1092

VOLTAGE FAN (AT PCB)

Next: !p111, f112

INSPECTION FLUE SEALS

Next: p1108, !f1109

RESISTANCE AIR PRESSURE SWITCH AND HARNESS OPEN CIRCUIT

DISCONNECT THE TWELVE PIN CONNECTOR FROM PCB

Next: p113, f114

RESISTANCE ELECTRODE SENSE AND HARNESS

REMOVE FLAME DETECTION ELECTRODE FROM ITS HOUSING
DISCONNECT ELECTRODE LEAD FROM PCB

Next: p1122, f1282

PRESSURE GAS INLET

ATTACH PRESSURE GAUGE TO THE INLET PRESSURE TEST POINT
APPLY CH DEMAND

Next: p1132, !f1133

VOLTAGE GAS VALVE (AT PCB)

Next: !p1136, !f1137

INSPECTION TUBES AIR PRESSURE

Next: !p115, !f116

PUMP RUNS CH DEMAND

THERMOSTAT TURNED TO OFF POSITION

Next: p1146, f1147

VOLTAGE PUMP AT PCB

APPLY HEATING DEMAND

Next: p1148, !f1149

LIMPET TEST

Next: p1154, !f1155

IS PUMP CAVITATING

Next: !p1162, !f1163

VOLTAGE FAN (AT PCB) MK1

Next: !p1178, f1179

RESISTANCE AIR PRESSURE SWITCH AND HARNESS OPEN CIRCUIT

DISCONNECT THE CONNECTOR PLUG MARKED J5 FROM PCB

Next: p1180, f1181

RESISTANCE SENSOR OVERHEAT STAT

DISCONNECT THE WHITE LEADS FROM THE OVERHEAT STAT

Next: !p119, f299

INSPECTION TUBES AIR PRESSURE

Next: !p1182, !f1183

RESISTANCE SENSOR OVERHEAT STAT

DISCONNECT THE WHITE LEADS FROM THE OVERHEAT STAT

Next: !p1186, f1187

FURTHER INVESTIGATION OVER HEAT PROBLEM

Next: !p1188, !f1189

RESISTANCE SENSOR TEMP FLOW

DISCONNECT THE YELLOW LEADS FROM PRIMARY SENSOR

Next: !p1192, !f1193

INSPECTION EXTERNAL BYPASS SYSTEM

Next: !p1213, !f1214

PRESSURE GAS BURNER

THERMOSTAT TURNED TO MAXIMUM
CONNECT A U-GAUGE TO THE BURNER GAS PRESSURE TEST POINT

Next: !p1225, !f1226

PUMP LIMPET TEST

Next: p1231, !f1232

PUMP RUNS CH DEMAND

THERMOSTAT TURNED TO OFF POSITION

Next: p329, f150

RESISTANCE SENSOR TEMP FLOW

DISCONNECT THE YELLOW LEADS FROM PRIMARY SENSOR

Next: !p1259, !f1260

RESISTANCE SENSOR TEMP FLOW

DISCONNECT THE YELLOW LEADS FROM PRIMARY SENSOR

Next: !p1263, !f1264

RESISTANCE ELECTRODE SENSE HARNESS

DISCONNECT ELECTRODE LEAD FROM ELECTRODE AND PCB

Next: !p1277, !f1278

RESISTANCE ELECTRODE SENSE HARNESS

DISCONNECT ELECTRODE LEAD FROM ELECTRODE AND PCB

Next: !p1283, !f1284

PUMP LIMPET TEST

Next: p1299, !f1300

VOLTAGE BOILER SWITCHED LIVE

THERMOSTAT TO OFF POSITION

Next: p15, !f262

VOLTAGE PUMP AT BOILER

APPLY HEATING DEMAND

Next: p151, !f271

FUSE FURTHER INVESTIGATION F2

Next: !p19, !f20

PRESSURE GAS INLET

ATTACH PRESSURE GAUGE TO THE INLET PRESSURE TEST POINT
APPLY CH DEMAND

Next: p196, !f256

VOLTAGE GAS VALVE (AT PCB)

Next: !p201, !f257

RESISTANCE ELECTRODE SENSE AND HARNESS

REMOVE FLAME DETECTION ELECTRODE FROM ITS HOUSING
DISCONNECT ELECTRODE LEAD FROM PCB

Next: p249, f1276

PUMP LIMPET TEST

Next: p275, !f276

FURTHER INVESTIGATION OVER HEAT PROBLEM

Next: !p300, !f301

LIMPET TEST

Next: p332, !f333

IS PUMP CAVITATING

Next: !p340, !f341

INSPECTION FLUE SEALS

Next: p359, !f356

RESISTANCE SENSOR TEMP FLOW

DISCONNECT THE YELLOW LEADS FROM PRIMARY SENSOR

Next: !p454, !f548

PRESSURE GAS BURNER

THERMOSTAT TURNED TO MAXIMUM
CONNECT A U-GAUGE TO THE BURNER GAS PRESSURE TEST POINT

Next: !p496, !f495

INSPECTION EXTERNAL BYPASS SYSTEM

Next: !p546, !f523

PUMP LIMPET TEST

Next: p535, !f536

RESISTANCE SENSOR TEMP FLOW

DISCONNECT THE YELLOW LEADS FROM PRIMARY SENSOR

Next: !p550, !f551

RESISTANCE SENSOR TEMP FLOW

DISCONNECT THE YELLOW LEADS FROM PRIMARY SENSOR

Next: !p553, !f554

RESISTANCE SENSOR TEMP FLOW

DISCONNECT THE YELLOW LEADS FROM PRIMARY SENSOR

Next: !p578, !f579

VOLTAGE GAS VALVE (AT VALVE SHUTDOWN)

Next: !p582, !f583

VOLTAGE MAINS POWER INPUT TO APPLIANCE

REMOVE CONTROL BOX COVER

Next: p7, f8

RESISTANCE FUSE F1 (FUSED SPUR)

REMOVE FUSE FROM FUSED SPUR

Next: !p9, f10

RESISTANCE GAS VALVE SOLENOID AND HARNESS

DISCONNECT GAS VALVE CONNECTOR
PLUG FROM THE PCB

Next: p1025, f1006

RESISTANCE PUMP AND HARNESS

DISCONNECT LEADS FRO

Next: p1026, f1027

RESISTANCE FAN AND HARNESS

DISCONNECT FAN CONNECTOR FROM PCB

Next: !p1030, f1031

RESISTANCE GAS VALVE SOLENOID AND HARNESS

DISCONNECT GAS VALVE CONNECTOR
PLUG FROM THE PCB

Next: p1056, f1037

RESISTANCE PUMP AND HARNESS

DISCONNECT LEADS FRO

Next: p1057, f1058

RESISTANCE FAN AND HARNESS

DISCONNECT FAN CONNECTOR FROM PCB

Next: !p1061, f1062

VOLTAGE BOILER SWITCHED LIVE

THERMOSTAT TO OFF POSITION

Next: p107, !f108

VOLTAGE FAN (AT FAN)

Next: !p109, f110

FAN RUNS

Next: p1085, f1086

FURTHER INVESTIGATION LED PROBLEM

Next: !p1093, !f1094

RESISTANCE FUSE F2 ( APPLIANCE)

REMOVE FUSE FROM FUSE AND HOLDER FROM PCB

Next: !p1089, f1090

VOLTAGE BOILER SWITCHED LIVE

THERMOSTAT TO OFF POSITION

Next: p1174, !f1175

AIR PRESSURE SWITCH PROVING

DISCONNECT LEADS FRO

Next: p1142, !f1143

PRESSURE GAS BURNER

THERMOSTAT TURNED TO MAXIMUM
CONNECT A U-GAUGE TO THE BURNER GAS PRESSURE TEST POINT

Next: p1130, f1131

PRESSURE GAS INLET

ATTACH PRESSURE GAUGE TO THE INLET PRESSURE TEST POINT
APPLY CH DEMAND

Next: p1118, !f1119

DID BURNER BAFFLE OR ROLL DOWN OR LIFT OFF

Next: p1106, f1107

INSPECTION FAN MECHANICAL

REMOVE FAN

Next: p1112, !f1113

INSPECTION COMBUSTION CHAMBER

REMOVE COMBUSTION CHAMBER COVER

Next: !p1110, !f1111

INSPECTION HEAT EXCHANGER PRIMARY (FLUE WAYS)

Next: p1114, !f1115

INSPECTION FLUE

Next: !p1116, !f1117

VOLTAGE RECTIFICATION

Next: !p1281, f1121

INSPECTION BURNER

Next: p1124, !f1125

INSPECTION FLUE

Next: !p1126, !f1127

RESISTANCE OVERHEAT STAT AND HARNESS

DISCONNECT THE TWELVE PIN CONNECTOR FROM PCB

Next: p452, f118

INSPECTION BURNER

Next: p1138, !f1139

VOLTAGE GAS VALVE (AT VALVE)

Next: !p1134, f1135

INSPECTION ELECTRODE AND GAP

Next: !p1140, !f1141

RESISTANCE FLOW SWITCH OPERATION

DISCONNECT THE WHITE

Next: p1144, f1145

INSPECTION TUBES AIR PRESSURE

Next: p1166, !f1167

METHOD OF PUMP DIAGNOSIS

Next: p1152, f1153

VOLTAGE PUMP AT PUMP

Next: !p1150, !f1151

DOES PUMP SPIN FREELY

THE PUMP IS NOT AN I

Next: p1158, !f1159

INSPECTION EXTERNAL BYPASS SYSTEM

Next: !p1156, !f1157

DOES PUMP STOP QUICKLY

PUMP IS NOT AN INTEG

Next: p1160, f1161

INSPECTION EXTERNAL BYPASS SYSTEM

Next: !p1164, !f1165

RESISTANCE ELECTRODE SPARK HARNESS

REMOVE FLAME DETECTION ELECTRODE FROM ITS HOUSING

Next: p1168, !f1169

RESISTANCE ELECTRODE SPARK

REMOVE THE IGNITION ELECTRODE

Next: p1170, !f1171

INSPECTION ELECTRODE SPARK GAP

Next: !p1172, !f1173

VOLTAGE FAN (AT FAN)

Next: !p1176, f1177

RESISTANCE OVERHEAT STAT AND HARNESS

DISCONNECT THE 9 PIN CONNECTOR MARKED J6 PCB

Next: p1184, f1185

RESISTANCE SENSOR TEMP PRIMARY AND HARNESS

DISCONNECT THE 3 PIN CONNECTOR MARKED J5 (YELLOW LEADS) FROM THE PCB

Next: !p1190, f1191

PUMP LIMPET TEST

Next: p1241, !f1242

TYPE OF SYSTEM

PLEASE SELECT FROM B

Next: p1229, f1230

GAS INLET PRESSURE

ATTACH PRESSURE GAUGE TO THE INLET PRESSURE TEST POINT
APPLY CH DEMAND

Next: p1221, !f1222

RESISTANCE OVERHEAT STAT AT TEMP

ALLOW APPLIANCE TO FIRE AND SYSTEM TO HEAT UNTIL BOILER SHUTS DOWN

Next: !p1219, !f1220

VOLTAGE BOILER SWITCHED LIVE OPERATION REFIRE

THERMOSTAT TO OFF POSITION

Next: p1209, !f1210

EXPANSION VESSEL PRESSURE

SYSTEM DISCHARGED

Next: !p1207, !f1208

TEMPERATURE SYSTEM FLOW MK1

BOILER STAT SET TO MID RANGE

Next: p1211, f1212

RESISTANCE SENSOR TEMP FLOW

DISCONNECT THE YELLOW LEADS FROM PRIMARY SENSOR

Next: p1215, !f1216

INSPECTION EXTERNAL BYPASS SYSTEM

Next: !p1217, !f1218

RESISTANCE FLOW SWITCH OPERATION

DISCONNECT THE WHITE

Next: p180, f124

GAS RATE

Next: p1223, f1224

RESISTANCE SENSOR TEMP FLOW

DISCONNECT THE YELLOW LEADS FROM PRIMARY SENSOR

Next: !p1227, !f1228

EXPANSION TANK LEVEL

IF EXPANSION TANK IS LOCATED IN THE LOFT AREA THE REQUIRED PRECAUTIONS AS PER TOPS MUST BE FOLLOWED.

Next: p1235, !f1236

INSPECTION EXTERNAL BYPASS SYSTEM

Next: !p1233, !f1234

PUMP LIMPET TEST

Next: p1237, !f1238

INSPECTION EXTERNAL BYPASS SYSTEM

Next: !p1239, !f1240

INSPECTION EXTERNAL BYPASS SYSTEM

Next: p1243, !f1244

RESISTANCE SENSOR TEMP FLOW

DISCONNECT THE YELLOW LEADS FROM PRIMARY SENSOR

Next: p1286, !f1246

RESISTANCE POTENTIOMETER TEMP FLOW

DISCONNECT MOLEX CONNECTOR J9 FROM PCB

Next: p1288, !f1287

GAS RATE

Next: p1289, !f1290

TEMPERATURE DIFFERENTIAL FLOW AND RETURN

BOILER STAT TO MID RANGE

Next: !p1291, ?1293, ?1295

INSPECTION EXTERNAL BYPASS SYSTEM

Next: p1301, !f1302

FURTHER INVESTIGATION LED PROBLEM

Next: !p298, !f297

RESISTANCE SENSOR TEMP FLOW

DISCONNECT THE YELLOW LEADS FROM PRIMARY SENSOR

Next: p1313, !f1304

RESISTANCE POTENTIOMETER TEMP FLOW

DISCONNECT MOLEX CONNECTOR J9 FROM PCB

Next: p1315, !f1314

GAS RATE

Next: p1316, !f1317

TEMPERATURE DIFFERENTIAL FLOW RETURN

BOILER STAT TO MID RANGE

Next: !p1318, ?1320, ?1322

RESISTANCE FUSE F2 ( APPLIANCE)

REMOVE FUSE FROM FUSE AND HOLDER FROM PCB

Next: !p272, f18

VOLTAGE PUMP AT PUMP

Next: !p261, !f255

INSPECTION TUBES AIR PRESSURE

Next: p182, !f181

RESISTANCE ELECTRODE SPARK HARNESS

REMOVE FLAME DETECTION ELECTRODE FROM ITS HOUSING

Next: p183, !f184

RESISTANCE ELECTRODE SPARK

REMOVE THE IGNITION ELECTRODE

Next: p185, !f186

INSPECTION ELECTRODE SPARK GAP

Next: !p263, !f188

PRESSURE GAS BURNER

THERMOSTAT TURNED TO MAXIMUM
CONNECT A U-GAUGE TO THE BURNER GAS PRESSURE TEST POINT

Next: p205, f192

VOLTAGE GAS VALVE (AT VALVE)

Next: !p260, f197

INSPECTION BURNER

Next: p207, !f206

INSPECTION ELECTRODE AND GAP

Next: !p209, !f208

PRESSURE GAS INLET

ATTACH PRESSURE GAUGE TO THE INLET PRESSURE TEST POINT
APPLY CH DEMAND

Next: p212, !f213

VOLTAGE RECTIFICATION

Next: !p1275, f248

INSPECTION BURNER

Next: p251, !f252

INSPECTION FLUE

Next: !p253, !f254

INSPECTION EXTERNAL BYPASS SYSTEM

Next: p277, !f278

RESISTANCE SENSOR TEMP FLOW

DISCONNECT THE YELLOW LEADS FROM PRIMARY SENSOR

Next: p302, !f280

GAS RATE

Next: p303, !f304

TEMPERATURE DIFFERENTIAL FLOW RETURN

BOILER STAT TO MID RANGE

Next: !p305, ?307, ?309

METHOD OF PUMP DIAGNOSIS

Next: p330, f331

DOES PUMP SPIN FREELY

THE PUMP IS NOT AN I

Next: p336, !f337

INSPECTION EXTERNAL BYPASS SYSTEM

Next: !p334, !f491

DOES PUMP STOP QUICKLY

PUMP IS NOT AN INTEG

Next: p338, f339

INSPECTION EXTERNAL BYPASS SYSTEM

Next: !p342, !f489

DID BURNER BAFFLE OR ROLL DOWN OR LIFT OFF

Next: p348, f355

INSPECTION FAN MECHANICAL

REMOVE FAN

Next: p350, !f349

INSPECTION HEAT EXCHANGER PRIMARY (FLUE WAYS)

Next: p352, !f351

INSPECTION FLUE

Next: !p354, !f353

INSPECTION COMBUSTION CHAMBER

REMOVE COMBUSTION CHAMBER COVER

Next: !p361, !f360

PUMP LIMPET TEST

Next: p400, !f401

GAS INLET PRESSURE

APPLY CH DEMAND
ATTACH PRESSURE GAUGE TO THE INLET PRESSURE TEST POINT

Next: p372, !f497

GAS RATE

Next: p374, f493

RESISTANCE SENSOR TEMP FLOW

DISCONNECT THE YELLOW LEADS FROM PRIMARY SENSOR

Next: !p384, !f385

INSPECTION EXTERNAL BYPASS SYSTEM

Next: p402, !f403

RESISTANCE SENSOR TEMP FLOW

DISCONNECT THE YELLOW LEADS FROM PRIMARY SENSOR

Next: p422, !f405

GAS RATE

Next: p423, !f424

TEMPERATURE DIFFERENTIAL FLOW RETURN

BOILER STAT TO MID RANGE

Next: !p425, ?427, ?429

VOLTAGE BOILER SWITCHED LIVE OPERATION REFIRE

THERMOSTAT TO OFF POSITION

Next: p515, !f492

RESISTANCE SENSOR TEMP PRIMARY AND HARNESS

DISCONNECT THE 4 PIN CONNECTOR WITH YELLOW LEADS FROM THE PCB

Next: !p456, f453

RESISTANCE OVERHEAT STAT AT TEMP

ALLOW APPLIANCE TO FIRE AND SYSTEM TO HEAT UNTIL BOILER SHUTS DOWN

Next: !p483, !f479

TEMPERATURE SYSTEM FLOW

BOILER STAT SET TO MID RANGE

Next: p517, f516

RESISTANCE SENSOR TEMP FLOW

DISCONNECT THE YELLOW LEADS FROM PRIMARY SENSOR

Next: p518, !f519

INSPECTION EXTERNAL BYPASS SYSTEM

Next: !p520, !f521

EXPANSION VESSEL PRESSURE

SYSTEM DISCHARGED

Next: !p528, !f529

TYPE OF SYSTEM

PLEASE SELECT FROM B

Next: p531, f534

EXPANSION TANK LEVEL

IF EXPANSION TANK IS LOCATED IN THE LOFT AREA THE REQUIRED PRECAUTIONS AS PER TOPS MUST BE FOLLOWED.

Next: p540, !f539

INSPECTION EXTERNAL BYPASS SYSTEM

Next: !p537, !f538

PUMP LIMPET TEST

Next: p541, !f542

INSPECTION EXTERNAL BYPASS SYSTEM

Next: !p543, !f544

GAS BURNER SHUT DOWN

APPLY CH DEMAND

Next: !p580, f581

VOLTAGE MAINS POWER INPUT TO APPLIANCE POLARITY

REMOVE CONTROL BOX COVER

Next: !p573, !f574

RESISTANCE SENSOR TEMP PRIMARY AND HARNESS

DISCONNECT THE 4 PIN CONNECTOR WITH YELLOW LEADS FROM THE PCB

Next: !p576, f577

FAN RUNS

Next: p13, f14

AIR PRESSURE SWITCH PROVING

DISCONNECT LEADS FRO

Next: p122, !f121

System Information

Total Tests: 479

Sequence Logic: Decoded from encrypted .seq file

Navigation: Dynamic based on pass/fail results

Source: 4731307 GW SWIFTFLOW 100 SIT Control