XSol Diagnostic System

IDEAL CLASSIC RS

GLOBALLY REPLACED

Next: &1, *

APPLIANCE APPEARS SATISFACTORY

Next: nff

INFORMATION CASE REMOVAL

Next: &4, !f19

TYPE OF DIAGNOSTIC PROCEDURE

PLEASE SELECT FROM O

Next: &529, !f5

OBSERVATION PILOT & BURNER IGNITES

REFIT CASE IF IT WAS REMOVED PREVIOUSLY

Next: &994, ?71, ?73, ?415

OPERATION CH

THERMOSTAT SET TO 6 (MAXIMUM)

Next: &288, ?226, ?228, ?230, ?245

OPERATION DHW

Next: &501, ?289, ?291

FUSE INVESTIGATION (MAINS)

INTENTIONALLY BLANK - HEADER FOR MAINS FUSE INVESTIGATION

Next: &nff, f296

FUSE INVESTIGATION (APPLIANCE)

INTENTIONALLY BLANK - HEADER FOR APPLIANCE FUSE INVESTIGATION

Next: &nff, f310

INFORMATION PROGRAMMER

Next: &nff, !f468

COMBUSTION TEST

Next: &739, f1012

OBSERVATION BOILER STANDBY

NO DEMANDS
THERMOSTAT SET TO 6 (MAXIMUM)

Next: &70, ?530, ?532

BOTH LEDS ILLUMINATED TREE

OUTSIDE MODEL

Next: &nff, f962

OBSERVATION RUN BOILER TO MAX TEMP

ATTACH A TEMPERATURE

Next: &nff, !f740

PRESSURE BURNER

ATTACH A PRESSURE GAUGE TO THE BURNER PRESSURE TEST POINT

Next: &224, f995

COMBUSTION TEST FROM DIAGNOSTIC PROCEDURE

INTENTIONALLY BLANK - HEADER FOR COMBUSTION TEST

Next: &nff, f1007

OPERATION CH - RUNS BUT RADS COOL

BURNER

Next: End

OPERATION CH - NOISY

SYSTEM PRESSURE / AIR IN SYSTEM

Next: End

OPERATION CH - NOISY

PUMP

Next: End

COMBUSTION TEST

INLET PRESSURE

Next: End

COMBUSTION TEST

KIT - COMBUSTION CHAMBER INSULATION

Next: End

COMBUSTION TEST

BURNER FITMENT

Next: End

COMBUSTION TEST

BURNER

Next: End

COMBUSTION TEST

HEAT EXCHANGER ASSEMBLY (FLUEWAYS)

Next: End

COMBUSTION TEST

FLUE

Next: End

INFORMATION CASE REMOVAL

Z REDIRECT

Next: End

OBSERVATION PILOT & BURNER IGNITES - NO MAIN BURNER

BURNER

Next: End

OBSERVATION PILOT & BURNER IGNITES - NO MAIN BURNER

KIT - INJECTOR

Next: End

OBSERVATION PILOT BURNER IGNITES - NO MAIN BURNER - NO PRESSURE

INLET PRESSURE

Next: End

OBSERVATION PILOT & BURNER IGNITES - NO MAIN BURNER

PCB 25E - PACTROL

Next: End

OBSERVATION PILOT BURNER IGNITES - NO MAIN BURNER - MAIN SOLENOID

GAS VALVE

Next: End

OBSERVATION PILOT & BURNER IGNITES - NO MAIN BURNER - LOW PRESSURE

INLET PRESSURE

Next: End

OPERATION CH - UP TO TEMP RADS COOL - RUNNING SLOW

PUMP

Next: End

OPERATION CH - UP TO TEMP RADS COOL

Next: End

OPERATION CH - UP TO TEMP RADS COOL

SYSTEM PRESSURE / AIR IN SYSTEM

Next: End

OPERATION CH - RUNS BUT RADS COOL

SYSTEM PRESSURE / AIR IN SYSTEM

Next: End

OPERATION CH - UP TO TEMP RADS COOL

PUMP - NOT RUNNING

Next: End

INFORMATION PROGRAMMER

Z REDIRECT

Next: End

OBSERVATION PILOT & BURNER IGNITES - BAFFLES

INLET PRESSURE

Next: End

TYPE OF DIAGNOSTIC PROCEDURE

Z REDIRECT

Next: End

FUSE INVESTIGATION (MAINS)

KIT - FIXINGS - GENERAL

Next: End

FUSE INVESTIGATION (APPLIANCE)

KIT - FIXINGS - GENERAL

Next: End

OBSERVATION PILOT & BURNER IGNITES - NO MAIN BURNER

KIT - IGNITION ELECTRODE

Next: End

OBSERVATION PILOT & BURNER IGNITES

Next: End

OBSERVATION RUN BOILER TO MAX TEMP

KIT - THERMOSTAT - BOILER

Next: End

OBSERVATION FAN RUNS - TRIPPING / BLOWING FUSES

Next: End

OBSERVATION FAN RUNS - OVERHEAT INVESTIGATION

PUMP - NOT RUNNING

Next: End

OBSERVATION FAN RUNS - OVERHEAT INVESTIGATION

SYSTEM PRESSURE / AIR IN SYSTEM

Next: End

OBSERVATION FAN RUNS - OVERHEAT INVESTIGATION - RUNNING SLOW

PUMP

Next: End

OBSERVATION FAN RUNS - OVERHEAT INVESTIGATION

Next: End

OBSERVATION FAN RUNS - OPEN CIRCUIT

KIT - LIMIT THERMOSTAT

Next: End

OBSERVATION FAN RUNS

HARNESS - INCOMING MAINS

Next: End

OBSERVATION FAN RUNS - NO LED

PCB 25E - PACTROL

Next: End

OBSERVATION FAN RUNS

BOARD 7 - 1A FUSES

Next: End

OBSERVATION PILOT & BURNER IGNITES - NO PILOT

INLET PRESSURE

Next: End

OBSERVATION PILOT & BURNER IGNITES - NO VOLTAGE TO PILOT SOLENOID

PCB 25E - PACTROL

Next: End

OBSERVATION PILOT & BURNER IGNITES - NO PILOT

GAS VALVE - PILOT SOLENOID

Next: End

OBSERVATION PILOT & BURNER IGNITES - NO PILOT

KIT - IGNITION ELECTRODE

Next: End

OBSERVATION PILOT & BURNER IGNITES - NO PILOT

KIT - INJECTOR

Next: End

OBSERVATION PILOT & BURNER IGNITES - NO PILOT

PCB LINKS

Next: End

OBSERVATION PILOT BURNER IGNITES - BAFFLES

KIT - COMBUSTION CHAMBER INSULATION

Next: End

OBSERVATION PILOT & BURNER IGNITES - BAFFLES

BURNER

Next: End

OBSERVATION PILOT BURNER IGNITES - BAFFLES

HEAT EXCHANGER ASSEMBLY (FLUEWAYS)

Next: End

OBSERVATION PILOT & BURNER IGNITES - NO PILOT

KIT - THERMOSTAT - BOILER

Next: End

OBSERVATION CH - SHUTS OFF FAN CONTINUES - MAIN SOLENOID

PCB 25E - PACTROL

Next: End

OPERATION CH - SHUTS DOWN TOO EARLY

KIT - THERMOSTAT - BOILER

Next: End

OBSERVATION CH - SHUTS OFF FAN CONTINUES - PILOT SOLENOID

PCB 25E - PACTROL

Next: End

FUSE INVESTIGATION - MAINS

GAS VALVE

Next: End

FUSE INVESTIGATION - MAINS

GAS VALVE - PILOT SOLENOID

Next: End

FUSE INVESTIGATION - MAINS

PUMP

Next: End

NO APPARENT FAULT

FUSE FURTHER INVESTIGATION (MAINS)

Next: End

FUSE INVESTIGATION - APPLIANCE

GAS VALVE

Next: End

FUSE INVESTIGATION - APPLIANCE

GAS VALVE - PILOT SOLENOID

Next: End

BOTH LEDS ILLUMINATED - NO PILOT

INLET PRESSURE

Next: End

BOTH LEDS ILLUMINATED - NO VOLTAGE TO PILOT SOLENOID

PCB 25E - PACTROL

Next: End

BOTH LEDS ILLUMINATED

GAS VALVE - PILOT SOLENOID

Next: End

BOTH LEDS ILLUMINATED OBSERVATION - NO PILOT

KIT - IGNITION ELECTRODE

Next: End

BOTH LEDS ILLUMINATED - NO PILOT

KIT - INJECTOR

Next: End

BOTH LEDS ILLUMINATED - NO SPARKING

PCB 25E - PACTROL

Next: End

OPERATION CH - CONTINUES TO FIRE BUT RADS ONLY WARM

PUMP - NOT RUNNING

Next: End

PRESSURE BURNER

INLET PRESSURE

Next: End

OPERATION CH - NOISY

HEAT EXCHANGER ASSEMBLY (WATERWAYS)

Next: End

COMBUSTION TEST

GAS VALVE - ADJUSTMENT

Next: End

COMBUSTION TEST FROM DIAGNOSTIC PROCEDURE

Z REDIRECT

Next: End

COMBUSTION TEST

NO FAULT - COMBUSTION TEST

Next: End

COMBUSTION TEST

KIT - GASKET GROMMET & BUSH

Next: End

COMBUSTION TEST

INJECTOR - MAIN

Next: End

OBSERVATION PILOT & BURNER IGNITES - NO MAIN BURNER

INJECTOR - MAIN

Next: End

OBSERVATION PILOT & BURNER IGNITES - NO MAIN BURNER

KIT - GAS VALVE PLUG C/W LEAD

Next: End

OBSERVATION PILOT & BURNER IGNITES - NO MAIN BURNER

GAS VALVE - ADJUSTMENT

Next: End

OBSERVATION PILOT & BURNER IGNITES - NO MAIN BURNER

GAS VALVE

Next: End

OPERATION CH - UP TO TEMP RADS COOL

Next: End

OPERATION DHW - UNSATISFACTORY

Next: End

OPERATION DHW - DOES NOT RESPOND

Next: End

OBSERVATION PILOT & BURNER IGNITES - NO MAIN BURNER - IGNORING RECTIFICATION

PCB 25E - PACTROL

Next: End

OBSERVATION BOILER STANDBY

Next: End

OBSERVATION BOILER STANDBY

GAS VALVE

Next: End

NO FAN - MAINS SUPPLY 2

Z REDIRECT

Next: End

FUSE FURTHER INVESTIGATION - MAINS

Z REDIRECT

Next: End

OBSERVATION FAN RUNS - WILL NOT RESET

KIT - LIMIT THERMOSTAT

Next: End

FAULTY LED

Z REDIRECT

Next: End

FUSE FURTHER INVESTIGATION - INTERNAL

Z REDIRECT

Next: End

OBSERVATION PILOT & BURNER IGNITES - NO PILOT

KIT - GAS VALVE PLUG C/W LEAD

Next: End

OBSERVATION PILOT & BURNER IGNITES - NO PILOT

GAS VALVE

Next: End

OBSERVATION FAN RUNS - ONLY I3 LED

PCB 25E - PACTROL

Next: End

OBSERVATION PILOT BURNER IGNITES - BAFFLES

FLUE

Next: End

OBSERVATION FAN RUNS - OVERHEAT INVESTIGATION

NO FAULT - OVERHEAT INVESTIGATION

Next: End

OBSERVATION FAN RUNS - OVERHEAT INVESTIGATION

KIT - LIMIT THERMOSTAT

Next: End

OVERHEAT INVESTIGATION

KIT - THERMOSTAT - BOILER

Next: End

OPERATION CH - SHUTS OFF FAN CONITNUES

GAS VALVE

Next: End

OPERATION CH - SHUTS OFF FAN CONITNUES

GAS VALVE - PILOT SOLENOID

Next: End

FUSE INVESTIGATION - MAINS - MAIN SOLENOID

KIT - GAS VALVE PLUG C/W LEAD

Next: End

FUSE INVESTIGATION - MAINS - PILOT SOLENOID

KIT - GAS VALVE PLUG C/W LEAD

Next: End

FUSE INVESTIGATION - MAINS

Next: End

FUSE INVESTIGATION - APPLIANCE - MAIN SOLENOID

KIT - GAS VALVE PLUG C/W LEAD

Next: End

NO APPARENT FAULT

FUSE FURTHER INVESTIGATION (APPLIANCE)

Next: End

FUSE INVESTIGATION - APPLIANCE - PILOT SOLENOID

KIT - GAS VALVE PLUG C/W LEAD

Next: End

BOTH LEDS ILLUMINATED

KIT - GAS VALVE PLUG C/W LEAD

Next: End

BOTH LEDS ILLUMINATED

GAS VALVE

Next: End

PRESSURE BURNER

GAS VALVE - ADJUSTMENT

Next: End

OPERATION CH - RUNS BUT RADS COOL

INJECTOR - MAIN

Next: End

CORK GASKET DAMAGED

CHARACTERISTIC TEST FROM INSPECTION INJECTOR AND GASKET

Next: !p1026

INJECTOR UNSATISFACTORY

CHARACTERISTIC TEST FROM INSPECTION INJECTOR AND GASKET

Next: !p1028

NO BURNER PRESSURE MEASURED

CHARACTERISTIC TEST FROM OPERATION DHW

Next: p213

BURNER PRESSURE PRESENT BUT LOW

CHARACTERISTIC TEST FROM OPERATION DHW

Next: p212

BOILER REACHES TEMPERATURE BUT RADIATORS REMAIN COOL

CHARACTERISTIC TEST FROM OPERATION CH

Next: p227

BOILER SHUTS DOWN BEFORE REACHING TEMPERATURE

CHARACTERISTIC TEST FROM OPERATION CH

Next: p917

CH OPERATES SATISFACTORILY BUT BOILER IS NOISY

CHARACTERISTIC TEST FROM OPERATION CH

Next: p1001

BOILER CONTINUES TO FIRE BUT RADIATORS ONLY GET WARM

CHARACTERISTIC TEST FROM OPERATION CH

Next: p983

DHW OPERATION UNSATISFACTORY

CHARACTERISTIC TEST FROM OPERATION DHW

Next: !p290

BOILER DOES NOT RUN WITH DHW DEMAND

CHARACTERISTIC TEST FROM OPERATION DHW

Next: !p380

BURNER LIGHTS BUT BAFFLES OUT

CHARACTERISTIC TEST FROM OBSERVATION PILOT & BURNER IGNITES

Next: p482

BOILER FIRES WITH NO DEMAND

CHARACTERISTIC TEST FROM OBSERVATION BOILER STANDBY

Next: !p531

PILOT STUCK ON

CHARACTERISTIC TEST FROM OBSERVATION BOILER STANDBY

Next: !p533

PILOT IGNITES BUT MAIN BURNER DOES NOT

CHARACTERISTIC TEST FROM OBSERVATION PILOT & BURNER IGNITES

Next: p72

PILOT DOES NOT IGNITE

CHARACTERISTIC TEST FROM OBSERVATION PILOT & BURNER IGNITES

Next: p748

OVERHEAT HAS TRIPPED BUT WILL NOT RESET

CHARACTERISTIC TEST FROM OBSERVATION HAS OVERHEAT TRIPPED

Next: !p760

OVERHEAT HAS TRIPPED BUT RESETS - INVESTIGATE CAUSE OF OVERHEAT

CHARACTERISTIC TEST FROM OBSERVATION HAS OVERHEAT TRIPPED

Next: p762

OVERHEAT TRIPS BEFORE 82 DEGREES

CHARACTERISTIC TEST FROM OBSERVATION RUN BOILER TO MAX TEMP (OVERHEAT)

Next: !p905

BOILER SIGNIFICANTLY EXCEEDS 82 DEGREES AND BURNER REMAINS LIT

CHARACTERISTIC TEST FROM OBSERVATION RUN BOILER TO MAX TEMP (OVERHEAT)

Next: !p907

23/07/2019 09:07:39 1905_1_50_1 08/08/2019 11:14:47

06/08/2019 09:18:50

Next: End

PRESSURE BURNER (COMBUSTION)

ATTACH A PRESSURE GAUGE TO THE BURNER PRESSURE TEST POINT

Next: !p1011, f1008

PRESSURE GAS INLET (OPERATION)

ATTACH A PRESSURE GAUGE TO THE INLET PRESSURE TEST POINT

Next: !p1009, !f1010

INSPECTION INSULATION PADS

Next: p1013, !f1014

SOCKET AND SEE POLARITY CHECK

{GAINPCBACS}

Next: p602, !f609

RESISTANCE GAS VALVE MAIN SOLENOID

DISCONNECT LEAD FROM

Next: !p219, !f220

INSPECTION PCB FITTED SECURELY

Next: p940, !f551

INSPECTION PCB FITTED SECURELY

Next: p953, !f565

VOLTAGE MAINS POWER IN

Next: p751, f752

INFORMATION NO VOLTAGE TO APPLIANCE

THIS APPLIANCE DOES

Next: !p753, f754

OBSERVATION REMOVE PERMANENT MAINS SUPPLY TO APPLIANCE (NO PILOT)

REMOVE THE LIVE, NEU

Next: !p755, !f756

FUSE FURTHER INVESTIGATION (PCB)

THE INFORMATION PROV

Next: !p789, !f790

RESISTANCE GAS VALVE PILOT SOLENOID

DISCONNECT LEAD FROM

Next: !p825, !f826

INSPECTION PCB LINKS

Next: p859, !f858

RESISTANCE THERMOSTAT AND HARNESS

DISCONNECT THERMOSTAT PLUG FROM PCB (BOTTOM LEFT)
THERMOSTAT SET TO 6 (MAXIMUM)

Next: p932, !f930

RESISTANCE GAS VALVE MAIN SOLENOID (FUSE INVESTIGATION)

DISCONNECT LEAD FROM

Next: !p943, !f944

RESISTANCE GAS VALVE PILOT SOLENOID (FUSE INVESTIGATION)

DISCONNECT LEAD FROM

Next: !p947, !f948

RESISTANCE GAS VALVE MAIN SOLENOID (FUSE INVESTIGATION)

DISCONNECT LEAD FROM

Next: !p956, !f957

RESISTANCE GAS VALVE PILOT SOLENOID (FUSE INVESTIGATION)

DISCONNECT LEAD FROM

Next: !p960, !f961

OBSERVATION SPARKING AT PCB

{GAINPCBACS}
DISC

Next: p963, !f982

RESISTANCE GAS VALVE PILOT SOLENOID

DISCONNECT LEAD FROM

Next: !p975, !f976

PRESSURE GAS INLET (OPERATION)

ATTACH A PRESSURE GAUGE TO THE INLET PRESSURE TEST POINT

Next: !p996, !f997

INSPECTION SYSTEM FILLED AND VENTED

Next: p1002, !f1003

PUMP LIMPET TEST

Next: !p1004, !f1005

INSPECTION BURNER FITTED CORRECTLY

Next: p1015, !f1016

INSPECTION BURNER

REMOVE BURNER ASSEMBLY

Next: p1017, !f1018

INSPECTION HEAT EXCHANGER

REMOVE FAN & HOOD ASSEMBLY
REMOVE HEAT EXCHANGER BAFFLES

Next: p1019, !f1020

INSPECTION FLUE

Next: p1021, !f1022

INSPECTION INJECTOR AND GASKET

REMOVE BURNER ASSEMBLY

Next: !p1023, ?1025, ?1027

INSPECTION BURNER

REMOVE BURNER ASSEMBLY

Next: !p200, !f201

PRESSURE BURNER

ATTACH A PRESSURE GAUGE TO THE BURNER PRESSURE TEST POINT

Next: p173, ?209, ?211

INSPECTION PILOT INJECTOR

REMOVE BURNER
REMOVE MAIN & PILOT INJECTOR ASSEMBLY
REMOVE PILOT INJECTOR

Next: !p381, !f207

PRESSURE GAS INLET

ATTACH A PRESSURE GAUGE TO THE INLET PRESSURE TEST POINT

Next: !p221, !f222

PRESSURE GAS INLET

ATTACH A PRESSURE GAUGE TO THE INLET PRESSURE TEST POINT

Next: p214, !f215

VOLTAGE MAIN SOLENOID AT PCB

{GAINPCBACS}

Next: p216, !f217

RESISTANCE GAS VALVE MAIN SOLENOID AND HARNESS

DISCONNECT GAS VALVE PLUG FROM PCB (RIGHTMOST PLUG)

Next: !p223, f218

OBSERVATION PUMP RUNNING

LOCATE SYSTEM PUMP

Next: p263, !f397

PUMP LIMPET TEST

Next: p237, !f236

INSPECTION EXTERNAL BYPASS

Next: !p238, !f239

INSPECTION SYSTEM FILLED AND VENTED

Next: p235, !f269

INSPECTION SYSTEM FILLED AND VENTED

Next: p998, !f278

PRESSURE GAS INLET

ATTACH A PRESSURE GAUGE TO THE INLET PRESSURE TEST POINT

Next: p886, !f494

INSPECTION ELECTRODE AND LEAD

DISCONNECT LEAD MARKED "HT" FROM THE PCB
REMOVE BURNER ASSEMBLY
REMOVE INJECTOR ASSEMBLY

Next: p204, !f608

OBSERVATION DOES SPARKING STOP

{GAINPCBACS}

Next: p184, f203

OBSERVATION WHAT LEDS ARE ILLUMINATED

{GAINPCBACS}

Next: p749, f750

RESISTANCE PCB FUSE

REMOVE PCB FUSE FROM HOLDER

Next: p817, f788

OBSERVATION HAS OVERHEAT TRIPPED

ENSURE BOILER IS COOL

Next: p757, ?759, ?761

RESISTANCE OVERHEAT THERMOSTAT

DISCONNECT LEADS FROM OVERHEAT THERMOSTAT

Next: p781, !f782

OBSERVATION PUMP RUNNING

LOCATE SYSTEM PUMP

Next: p763, !f764

INSPECTION SYSTEM FILLED AND VENTED

Next: p765, !f766

PUMP LIMPET TEST

Next: p767, !f768

INSPECTION EXTERNAL BYPASS

Next: p902, !f770

RESISTANCE HARNESS MAINS

DISCONNECT MAINS IN LIVE PLUG (BOTTOM LEFT)
DISCONNECT MAINS IN NEUTRAL PLUG (TOP CENTRE)

Next: p783, !f784

INFORMATION FAULTY LED

Next: !p785, !f786

OBSERVATION SPARKING AT PCB

{GAINPCBACS}
DISC

Next: p818, f831

PRESSURE GAS INLET

ATTACH A PRESSURE GAUGE TO THE INLET PRESSURE TEST POINT

Next: p819, !f820

VOLTAGE PILOT SOLENOID AT PCB

Next: p821, !f822

RESISTANCE GAS VALVE PILOT SOLENOID AND HARNESS

DISCONNECT GAS VALVE PLUG FROM PCB (RIGHTMOST PLUG)

Next: p823, f824

INSPECTION ELECTRODE AND LEAD

DISCONNECT LEAD MARKED "HT" FROM THE PCB
REMOVE BURNER ASSEMBLY
REMOVE INJECTOR ASSEMBLY

Next: p827, !f828

INSPECTION PILOT INJECTOR

REMOVE BURNER
REMOVE MAIN & PILOT INJECTOR ASSEMBLY
REMOVE PILOT INJECTOR

Next: !p829, !f830

RESISTANCE THERMOSTAT AND HARNESS

DISCONNECT THERMOSTAT PLUG FROM PCB (BOTTOM LEFT)
THERMOSTAT SET TO 6 (MAXIMUM)

Next: !p883, !f910

INSPECTION INSULATION PADS

Next: p887, !f888

INSPECTION BURNER

REMOVE BURNER ASSEMBLY

Next: p889, !f890

INSPECTION HEAT EXCHANGER

REMOVE FAN & HOOD ASSEMBLY
REMOVE HEAT EXCHANGER BAFFLES

Next: !p891, !f892

OBSERVATION RUN BOILER TO MAX TEMP (OVERHEAT)

ATTACH A TEMPERATURE

Next: !p903, ?904, ?906

OBSERVATION PILOT

Next: p918, f928

VOLTAGE MAIN SOLENOID AT PCB (DROPPING OUT)

{GAINPCBACS}

Next: !p926, !f927

VOLTAGE PILOT SOLENOID AT PCB (DROPPING OUT)

{GAINPCBACS}

Next: !p933, !f934

RESISTANCE GAS VALVE MAIN SOLENOID AND HARNESS (FUSE INVESTIGATION)

DISCONNECT GAS VALVE PLUG FROM PCB (RIGHTMOST PLUG)

Next: p941, f942

RESISTANCE GAS VALVE PILOT SOLENOID AND HARNESS (FUSE INVESTIGATION)

DISCONNECT GAS VALVE PLUG FROM PCB (RIGHTMOST PLUG)

Next: p945, f946

RESISTANCE PUMP

REMOVE PUMP COVER / PLUG

Next: p949, !f950

OBSERVATION REMOVE PERMANENT MAINS SUPPLY TO APPLIANCE

REMOVE THE MAINS SUP

Next: !p951, !f952

RESISTANCE GAS VALVE MAIN SOLENOID AND HARNESS (FUSE INVESTIGATION)

DISCONNECT GAS VALVE PLUG FROM PCB (RIGHTMOST PLUG)

Next: p954, f955

RESISTANCE GAS VALVE PILOT SOLENOID AND HARNESS (FUSE INVESTIGATION)

DISCONNECT GAS VALVE PLUG FROM PCB (RIGHTMOST PLUG)

Next: !p958, f959

PRESSURE GAS INLET

ATTACH A PRESSURE GAUGE TO THE INLET PRESSURE TEST POINT

Next: p969, !f970

VOLTAGE PILOT SOLENOID AT PCB

Next: p971, !f972

RESISTANCE GAS VALVE PILOT SOLENOID AND HARNESS

DISCONNECT GAS VALVE PLUG FROM PCB (RIGHTMOST PLUG)

Next: p973, f974

INSPECTION ELECTRODE AND LEAD

DISCONNECT LEAD MARKED "HT" FROM THE PCB
REMOVE BURNER ASSEMBLY
REMOVE INJECTOR ASSEMBLY

Next: p977, !f978

INSPECTION PILOT INJECTOR

REMOVE BURNER
REMOVE MAIN & PILOT INJECTOR ASSEMBLY
REMOVE PILOT INJECTOR

Next: !p979, !f980

OBSERVATION PUMP RUNNING

LOCATE SYSTEM PUMP

Next: p270, !f993

INSPECTION BURNER

REMOVE BURNER ASSEMBLY

Next: !p999, !f1000

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