XSol Diagnostic System

IDEAL CLASSIC NF

GLOBALLY REPLACED

Next: &778, *

APPLIANCE APPEARS SATISFACTORY

Next: nff

OBSERVATION FAN RUNS

ENSURE BOILER IS COOL
ON/OFF SWITCH ON
BOILER STAT SET TO MAX (6)

Next: &70, f6

TYPE OF DIAGNOSTIC PROCEDURE

PLEASE SELECT FROM O

Next: &529, !f5

OBSERVATION PILOT & BURNER IGNITES

REFIT CASE IF IT WAS REMOVED PREVIOUSLY

Next: &743, ?71, ?73, ?415

OPERATION CH

Next: &288, ?226, ?228, ?230, ?245, ?389

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

COMBUSTION TEST

Next: &739, f761

OBSERVATION BOILER STANDBY

NO DEMANDS

Next: &3, ?530, ?532

BOTH LEDS ILLUMINATED TREE

OUTSIDE MODEL

Next: &nff, f612

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, f744

COMBUSTION TEST FROM DIAGNOSTIC PROCEDURE

Next: &nff, f756

INFORMATION CONTROL CASING POD

THE CONTROLS POD / P

Next: &4, !f779

INFORMATION CASE REMOVAL

Next: &nff, !f821

OBSERVATION PILOT & BURNER IGNITES - NO PILOT - STIFF

FAN ASSEMBLY

Next: End

OBSERVATION PILOT & BURNER IGNITES - NO PILOT

KIT - PRESSURE SENSING TUBES

Next: End

OBSERVATION PILOT & BURNER IGNITES - NO PILOT

PRESSURE SWITCH

Next: End

OBSERVATION PILOT & BURNER IGNITES - NO PILOT

FLUE

Next: End

OBSERVATION PILOT & BURNER IGNITES - NO PILOT

FAN ASSEMBLY - VENTURI

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

ELECTRODE - IGNITION C/W LEAD & BACKNUT

Next: End

OBSERVATION PILOT & BURNER IGNITES - NO PILOT

INJECTOR - PILOT BURNER / KIT - INJECTOR

Next: End

OBSERVATION PILOT & BURNER IGNITES - NO MAIN BURNER

BURNER

Next: End

OBSERVATION PILOT & BURNER IGNITES - NO MAIN BURNER

INJECTOR - PILOT 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 - 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 - SHUTS DOWN TOO EARLY

HARNESS - THERMOSTAT SENSOR

Next: End

OPERATION CH - SHUTS DOWN TOO EARLY

KIT - HARNESS - POTENTIOMETER

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

OBSERVATION PILOT & BURNER IGNITES - NO PILOT

HEAT EXCHANGER ASSEMBLY (FLUEWAYS)

Next: End

OBSERVATION PILOT & BURNER IGNITES - NO PILOT

AIR PRESSURE SENSING TUBE

Next: End

OPERATION CH - UP TO TEMP RADS COOL

PUMP - NOT RUNNING

Next: End

OBSERVATION PILOT BURNER IGNITES - BAFFLES - STIFF

FAN ASSEMBLY

Next: End

OBSERVATION PILOT & BURNER IGNITES - BAFFLES

BURNER

Next: End

OBSERVATION PILOT BURNER IGNITES - BAFFLES

KIT - INSULATION

Next: End

OBSERVATION PILOT & BURNER IGNITES - BAFFLES

INLET PRESSURE

Next: End

TYPE OF DIAGNOSTIC PROCEDURE

Z REDIRECT

Next: End

OBSERVATION PILOT BURNER IGNITES - BAFFLES

HEAT EXCHANGER ASSEMBLY (FLUEWAYS)

Next: End

OBSERVATION CH - SHUTS OFF FAN CONTINUES - MAIN SOLENOID

PCB 25E - PACTROL

Next: End

OBSERVATION CH - SHUTS OFF FAN CONTINUES - PILOT SOLENOID

PCB 25E - PACTROL

Next: End

OBSERVATION PILOT & BURNER IGNITES - NO MAIN BURNER

ELECTRODE - IGNITION C/W LEAD & BACKNUT

Next: End

OBSERVATION PILOT & BURNER IGNITES

Next: End

BOTH LEDS ILLUMINATED

PCB 25E - PACTROL

Next: End

BOTH LEDS ILLUMIANTED

KIT - HARNESS - FAN

Next: End

OBSERVATION FAN RUNS

BOARD 7 - 1A 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 - OVERHEAT INVESTIGATION

HARNESS - THERMOSTAT SENSOR

Next: End

OBSERVATION FAN RUNS - OVERHEAT INVESTIGATION

KIT - HARNESS - POTENTIOMETER

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 - LED ILLUMINATED - NO FAN

KIT - HARNESS - FAN

Next: End

OBSERVATION FAN RUNS

HARNESS - THERMOSTAT SENSOR

Next: End

OBSERVATION FAN RUNS

KIT - ON / OFF C/W ROCKER SWITCH

Next: End

OBSERVATION FAN RUNS - TRIPPING / BLOWING FUSES

Next: End

OBSERVATION RUN BOILER TO MAX TEMP

HARNESS - THERMOSTAT SENSOR

Next: End

PRESSURE BURNER

INLET PRESSURE

Next: End

OPERATION CH - NOISY

SYSTEM PRESSURE / AIR IN SYSTEM

Next: End

OPERATION CH - NOISY

PUMP

Next: End

OPERATION CH - RUNS BUT RADS COOL

BURNER

Next: End

COMBUSTION TEST FROM DIAGNOSTIC PROCEDURE

INLET PRESSURE

Next: End

COMBUSTION TEST

KIT - 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 CONTROL POD

Z REDIRECT

Next: End

OBSERVATION FAN RUNS

KIT - PRESSURE SENSING TUBES

Next: End

OBSERVATION FAN RUNS

FAN ASSEMBLY - VENTURI

Next: End

OBSERVATION PILOT & BURNER IGNITES - NO MAIN BURNER

GAS VALVE - MAIN SOLENOID

Next: End

FUSE INVESTIGATION - APPLIANCE

FAN ASSEMBLY

Next: End

FUSE INVESTIGATION - MAINS

FAN ASSEMBLY

Next: End

FUSE INVESTIGATION - MAINS

GAS VALVE - MAIN SOLENOID

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 - MAIN SOLENOID

Next: End

FUSE INVESTIGATION - APPLIANCE

GAS VALVE - PILOT SOLENOID

Next: End

INFORMATION CASE REMOVAL

Z REDIRECT

Next: End

OBSERVATION FAN RUNS

AIR PRESSURE SWITCH SENSING PIPES

Next: End

OBSERVATION PILOT & BURNER IGNITES - NO PILOT

AIR PRESSURE SWITCH SENSING PIPES

Next: End

OBSERVATION PILOT & BURNER IGNITES - NO PILOT

GAS VALVE - PILOT SOLENOID

Next: End

OBSERVATION PILOT & BURNER IGNITES - NO PILOT

HARNESS - PRESSURE SWITCH

Next: End

OBSERVATION PILOT & BURNER IGNITES - NO PILOT

GAS VALVE

Next: End

OBSERVATION PILOT & BURNER IGNITES - NO MAIN BURNER

INJECTOR - MAIN

Next: End

OBSERVATION PILOT & BURNER IGNITES - NO MAIN BURNER

HARNESS - WIRING - NO2 - PCB (GAS VALVE)

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 CH - SHUTS DOWN TOO EARLY

PCB 25E - PACTROL

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 PILOT & BURNER IGNITES - NO PILOT - SLOW

FAN ASSEMBLY

Next: End

OBSERVATION PILOT BURNER IGNITES - BAFFLES

FLUE

Next: End

OBSERVATION BOILER STANDBY

Next: End

OBSERVATION BOILER STANDBY

GAS VALVE

Next: End

OPERATION CH - SHUTS OFF FAN CONITNUES

GAS VALVE - PILOT SOLENOID

Next: End

BOTH LEDS ILLUMINATED

FAN ASSEMBLY

Next: End

FUSE FURTHER INVESTIGATION - INTERNAL

Z REDIRECT

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

OBSERVATION FAN RUNS - OVERHEAT INVESTIGATION

NO FAULT - OVERHEAT INVESTIGATION

Next: End

OBSERVATION FAN RUNS - OVERHEAT INVESTIGATION

KIT - LIMIT THERMOSTAT

Next: End

OBSERVATION FAN RUNS - OVERHEAT INVESTIGATION

PCB 25E - PACTROL

Next: End

FAULTY LED

Z REDIRECT

Next: End

OBSERVATION FAN RUNS - LED ILLUMINATED - NO FAN

FAN ASSEMBLY

Next: End

OBSERVATION FAN RUNS - ONLY I3 LED

PCB 25E - PACTROL

Next: End

OBSERVATION RUN BOILER TO MAX TEMP

PCB 25E - PACTROL

Next: End

PRESSURE BURNER

GAS VALVE - ADJUSTMENT

Next: End

OPERATION CH - NOISY

HEAT EXCHANGER ASSEMBLY (WATERWAYS)

Next: End

OPERATION CH - RUNS BUT RADS COOL

INJECTOR - MAIN

Next: End

COMBUSTION TEST FROM DIAGNOSTIC PROCEDURE

Z REDIRECT

Next: End

COMBUSTION TEST FROM DIAGNOSTIC PROCEDURE

GAS VALVE - ADJUSTMENT

Next: End

OBSERVATION PILOT BURNER IGNITES - NO PILOT - IGNORING APS

PCB 25E - PACTROL

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 FAN RUNS

HARNESS - PRESSURE SWITCH

Next: End

OBSERVATION FAN RUNS

PRESSURE SWITCH

Next: End

OPERATION - SHUTS OFF FAN CONTINUES

GAS VALVE - MAIN SOLENOID

Next: End

FUSE INVESTIGATION - APPLIANCE

KIT - HARNESS - FAN

Next: End

FUSE INVESTIGATION - MAINS

KIT - HARNESS - FAN

Next: End

FUSE INVESTIGATION - MAINS - MAIN SOLENOID

HARNESS - WIRING - NO2 - PCB (GAS VALVE)

Next: End

FUSE INVESTIGATION - MAINS - PILOT SOLENOID

HARNESS - WIRING - NO2 - PCB (GAS VALVE)

Next: End

FUSE INVESTIGATION - MAINS

Next: End

FUSE INVESTIGATION - APPLIANCE - MAIN SOLENOID

HARNESS - WIRING - NO2 - PCB (GAS VALVE)

Next: End

NO APPARENT FAULT

FUSE FURTHER INVESTIGATION (APPLIANCE)

Next: End

FUSE INVESTIGATION - APPLIANCE - PILOT SOLENOID

HARNESS - WIRING - NO2 - PCB (GAS VALVE)

Next: End

OBSERVATION PILOT & BURNER IGNITES - NO PILOT

HARNESS - WIRING - NO2 - PCB (GAS VALVE)

Next: End

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: p229

CH OPERATES SATISFACTORILY BUT BOILER IS NOISY

CHARACTERISTIC TEST FROM OPERATION CH

Next: p747

BOILER CONTINUES TO FIRE BUT RADIATORS ONLY GET WARM

CHARACTERISTIC TEST FROM OPERATION CH

Next: p270

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 SHUTS OFF EARLY BUT FAN CONTINUES TO RUN

CHARACTERISTIC TEST FROM OPERATION CH

Next: p390

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

OVERHEAT HAS TRIPPED BUT WILL NOT RESET

CHARACTERISTIC TEST FROM OBSERVATION HAS OVERHEAT TRIPPED

Next: !p654

OVERHEAT HAS TRIPPED BUT RESETS - INVESTIGATE CAUSE OF OVERHEAT

CHARACTERISTIC TEST FROM OBSERVATION HAS OVERHEAT TRIPPED

Next: p656

OVERHEAT TRIPS BEFORE 82 DEGREES

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

Next: !p672

BOILER SIGNIFICANTLY EXCEEDS 82 DEGREES AND BURNER REMAINS LIT

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

Next: !p674

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: p74

CORK GASKET DAMAGED

CHARACTERISTIC TEST FROM INSPECTION INJECTOR AND GASKET

Next: !p775

INJECTOR UNSATISFACTORY

CHARACTERISTIC TEST FROM INSPECTION INJECTOR AND GASKET

Next: !p777

02/08/2019 13:42:06 1906_1_50_1 08/08/2019 11:24:11

06/08/2019 09:35:02

Next: End

INSPECTION FAN FREE TO TURN

Next: p105, !f104

RESISTANCE AIR PRESSURE SWITCH WITH KIT

REMOVE THE WIRES AND

Next: !p109, !f110

SOCKET AND SEE POLARITY CHECK

{GAINPCBACS}

Next: p602, !f609

RESISTANCE GAS VALVE MAIN SOLENOID

DISCONNECT LEADS FROM MAIN SOLENOID (RIGHT HAND SIDE)

Next: !p219, !f789

RESISTANCE FAN AND HARNESS (FUSE INVESTIGATION)

DISCONNECT FAN PLUG FROM PCB (TOP LEFT MARKED FAN)

Next: p798, f795

RESISTANCE FAN AND HARNESS (FUSE INVESTIGATION)

DISCONNECT FAN PLUG FROM PCB (TOP LEFT MARKED FAN)

Next: p811, f792

VOLTAGE PILOT SOLENOID AT PCB (DROPPING OUT)

{GAINPCBACS}

Next: !p593, !f597

OBSERVATION WHAT LEDS ARE ILLUMINATED

{GAINPCBACS}

Next: p617, f644

VOLTAGE FAN AT PCB

Next: p613, !f614

FUSE FURTHER INVESTIGATION (PCB)

THE INFORMATION PROV

Next: !p620, !f621

VOLTAGE MAINS POWER IN

{GAINPCBACS}

Next: p645, f646

INFORMATION NO VOLTAGE TO APPLIANCE

THIS APPLIANCE DOES

Next: !p647, f648

OBSERVATION REMOVE PERMANENT MAINS SUPPLY TO APPLIANCE (NO FAN)

REMOVE THE MAINS SUPPLY TO THE APPLIANCE FROM THE LEFT HAND SIDE OF THE TERMINAL STRIP AND MAKE SAFE

Next: !p649, !f736

OBSERVATION DISCONNECT THERMISTOR

DISCONNECT PLUG FOR THERMISTOR AT THE PCB

Next: p714, !f715

RESISTANCE THERMISTOR

DISCONNECT THERMISTOR PLUG FROM PCB

Next: !p741, !f742

PRESSURE GAS INLET (OPERATION)

ATTACH A PRESSURE GAUGE TO THE INLET PRESSURE TEST POINT

Next: !p745, !f746

VOLTAGE AIR PRESSURE SWITCH (N/O)

{GAINPCBACS}

Next: !p76, f103

PRESSURE BURNER (COMBUSTION)

ATTACH A PRESSURE GAUGE TO THE BURNER PRESSURE TEST POINT

Next: !p757, f758

PRESSURE GAS INLET (OPERATION)

ATTACH A PRESSURE GAUGE TO THE INLET PRESSURE TEST POINT

Next: !p759, !f760

INSPECTION INSULATION PADS

Next: p762, !f763

RESISTANCE AIR PRESSURE SWITCH (N/C)

REMOVE THE WIRES FROM THE AIR PRESSURE SWITCH (NOTING THEIR LOCATIONS)

Next: !p781, f782

INSPECTION AIR PRESSURE SWITCH TUBES

Next: p822, !f784

RESISTANCE FAN (FUSE INVESTIGATION)

DISCONNECT LEADS FROM FAN (TAKE CARE NOT TO DAMAGE SPADES)

Next: !p793, !f794

RESISTANCE FAN (FUSE INVESTIGATION)

DISCONNECT LEADS FROM FAN (TAKE CARE NOT TO DAMAGE SPADES)

Next: !p796, !f797

RESISTANCE GAS VALVE MAIN SOLENOID (FUSE INVESTIGATION)

DISCONNECT LEADS FROM MAIN SOLENOID (RIGHT HAND SIDE)

Next: !p801, !f802

RESISTANCE GAS VALVE PILOT SOLENOID (FUSE INVESTIGATION)

DISCONNECT LEADS FROM PILOT SOLENOID (LEFT HAND SIDE)

Next: !p805, !f806

RESISTANCE GAS VALVE MAIN SOLENOID (FUSE INVESTIGATION)

DISCONNECT LEADS FROM MAIN SOLENOID (RIGHT HAND SIDE)

Next: !p814, !f815

RESISTANCE GAS VALVE PILOT SOLENOID (FUSE INVESTIGATION)

DISCONNECT LEADS FROM PILOT SOLENOID (LEFT HAND SIDE)

Next: !p818, !f819

RESISTANCE GAS VALVE PILOT SOLENOID

DISCONNECT LEADS FROM PILOT SOLENOID (LEFT HAND SIDE)

Next: !p95, !f96

INSPECTION AIR PRESSURE SWITCH TUBES

Next: p827, !f106

RESISTANCE AIR PRESSURE SWITCH AND HARNESS WITH KIT

REMOVE THE TUBES FRO

Next: p114, f108

INSPECTION FLUE

Next: p121, !f115

INSPECTION HEAT EXCHANGER

REMOVE FAN & HOOD ASSEMBLY
REMOVE HEAT EXCHANGER BAFFLES

Next: p118, !f394

INSPECTION SENSING TUBE

REMOVE FAN FROM HOOD ASSEMBLY

Next: !p393, !f396

INSPECTION FAN VENTURI

REMOVE FAN VENTURI FROM FAN

Next: p116, !f127

PRESSURE GAS INLET

ATTACH A PRESSURE GAUGE TO THE INLET PRESSURE TEST POINT

Next: p154, !f141

VOLTAGE PILOT SOLENOID AT PCB

{GAINPCBACS}

Next: p86, !f166

INSPECTION ELECTRODE AND LEAD

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

Next: p169, !f170

INSPECTION PILOT INJECTOR

REMOVE BURNER
REMOVE MAIN & PILOT INJECTOR ASSEMBLY
REMOVE PILOT INJECTOR

Next: !p171, !f172

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 (REFER TO PICTURES)

Next: !p223, f218

OBSERVATION PUMP RUNNING

LOCATE SYSTEM PUMP

Next: p263, !f397

RESISTANCE THERMISTOR

DISCONNECT THERMISTOR PLUG FROM PCB

Next: p240, !f242

PUMP LIMPET TEST

Next: p237, !f236

INSPECTION EXTERNAL BYPASS

Next: !p238, !f239

RESISTANCE POTENTIOMETER

DISCONNECT POTENTIOMETER PLUG FROM PCB

Next: !p258, !f244

INSPECTION SYSTEM FILLED AND VENTED

Next: p235, !f269

INSPECTION SYSTEM FILLED AND VENTED

Next: p752, !f278

OBSERVATION PILOT

Next: p591, f592

INSPECTION FAN FREE TO TURN

Next: p451, !f419

INSPECTION BURNER

REMOVE BURNER ASSEMBLY

Next: p498, !f450

INSPECTION INSULATION PADS

Next: p434, !f469

PRESSURE GAS INLET

ATTACH A PRESSURE GAUGE TO THE INLET PRESSURE TEST POINT

Next: p417, !f494

INSPECTION HEAT EXCHANGER

REMOVE FAN & HOOD ASSEMBLY
REMOVE HEAT EXCHANGER BAFFLES

Next: !p499, !f500

VOLTAGE MAIN SOLENOID AT PCB (DROPPING OUT)

{GAINPCBACS}

Next: !p790, !f596

INSPECTION ELECTRODE AND LEAD

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

Next: p204, !f608

VOLTAGE FAN AT FAN

REMOVE COMBUSTION CASE

Next: !p615, !f616

RESISTANCE PCB FUSE

REMOVE PCB FUSE FROM HOLDER

Next: p682, f619

OBSERVATION HAS OVERHEAT TRIPPED

ENSURE BOILER IS COOL

Next: p651, ?653, ?655

RESISTANCE OVERHEAT THERMOSTAT

DISCONNECT LEADS FROM OVERHEAT THERMOSTAT

Next: p675, !f676

OBSERVATION PUMP RUNNING

LOCATE SYSTEM PUMP

Next: p657, !f658

INSPECTION SYSTEM FILLED AND VENTED

Next: p659, !f660

PUMP LIMPET TEST

Next: p661, !f662

INSPECTION EXTERNAL BYPASS

Next: p663, !f664

RESISTANCE THERMISTOR

DISCONNECT THERMISTOR PLUG FROM PCB

Next: p665, !f666

RESISTANCE POTENTIOMETER

DISCONNECT POTENTIOMETER PLUG FROM PCB

Next: p667, !f668

OBSERVATION RUN BOILER TO MAX TEMP (OVERHEAT)

ATTACH A TEMPERATURE

Next: !p669, ?671, ?673

VOLTAGE MAINS POWER IN AT PCB

{GAINPCBACS}

Next: p679, !f678

INFORMATION FAULTY LED

Next: !p680, !f681

VOLTAGE FAN AT PCB

Next: p709, f713

VOLTAGE FAN AT FAN

REMOVE COMBUSTION CASE

Next: !p710, !f712

RESISTANCE AIR PRESSURE SWITCH AND HARNESS (N/C)

DISCONNECT PLUG FOR THE AIR PRESSURE SWITCH AT THE PCB (REFER TO PICTURE)

Next: p716, f780

RESISTANCE ON/OFF SWITCH AND HARNESS

DISCONNECT ON/OFF SWITCH PLUG FROM PCB (BOTTOM RIGHT)
ON/OFF SWITCH SET TO ON

Next: !p734, !f735

OBSERVATION DOES SPARKING STOP

{GAINPCBACS}

Next: p184, f203

OBSERVATION SPARKING AT PCB

{GAINPCBACS}
DISC

Next: p129, f75

INSPECTION SYSTEM FILLED AND VENTED

Next: p748, !f749

PUMP LIMPET TEST

Next: !p750, !f751

INSPECTION BURNER

REMOVE BURNER ASSEMBLY

Next: !p753, !f754

INSPECTION BURNER FITTED CORRECTLY

Next: p764, !f765

INSPECTION BURNER

REMOVE BURNER ASSEMBLY

Next: p766, !f767

INSPECTION HEAT EXCHANGER

REMOVE FAN & HOOD ASSEMBLY
REMOVE HEAT EXCHANGER BAFFLES

Next: p768, !f769

INSPECTION FLUE

Next: p770, !f771

INSPECTION INJECTOR AND GASKET

REMOVE BURNER ASSEMBLY

Next: !p772, ?774, ?776

INSPECTION FAN VENTURI

REMOVE FAN VENTURI FROM FAN

Next: !p785, !f786

RESISTANCE GAS VALVE MAIN SOLENOID AND HARNESS (FUSE INVESTIGATION)

DISCONNECT GAS VALVE PLUG FROM PCB (REFER TO PICTURES)

Next: p799, f800

RESISTANCE GAS VALVE PILOT SOLENOID AND HARNESS (FUSE INVESTIGATION)

DISCONNECT GAS VALVE PLUG FROM PCB (REFER TO PICTURES)

Next: p803, f804

RESISTANCE PUMP

REMOVE PUMP COVER / PLUG

Next: p807, !f808

OBSERVATION REMOVE PERMANENT MAINS SUPPLY TO APPLIANCE

REMOVE THE MAINS SUP

Next: !p809, !f810

RESISTANCE GAS VALVE MAIN SOLENOID AND HARNESS (FUSE INVESTIGATION)

DISCONNECT GAS VALVE PLUG FROM PCB (REFER TO PICTURES)

Next: p812, f813

RESISTANCE GAS VALVE PILOT SOLENOID AND HARNESS (FUSE INVESTIGATION)

DISCONNECT GAS VALVE PLUG FROM PCB (REFER TO PICTURES)

Next: !p816, f817

INSPECTION AIR PRESSURE SWITCH PIPES

Next: p783, !f826

INSPECTION AIR PRESSURE SWITCH PIPES

Next: p107, !f841

RESISTANCE GAS VALVE PILOT SOLENOID AND HARNESS

DISCONNECT GAS VALVE PLUG FROM PCB (REFER TO PICTURES)

Next: p168, f94

Welcome to the XSol Diagnostic System