XSol Diagnostic System

IDEAL CLASSIC / OPTICA HE

GLOBALLY REPLACED

Next: &1, *

APPLIANCE APPEARS SATISFACTORY

Next: nff

INFORMATION CASE REMOVAL

Next: &4, !f19

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: &889, ?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, f907

OBSERVATION BOILER STANDBY

NO DEMANDS

Next: &3, ?530, ?532

BOTH LEDS ILLUMINATED TREE

NOT USED - 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, f890

COMBUSTION TEST FROM DIAGNOSTIC PROCEDURE

INTENTIONALLY BLANK - NOT USED

Next: &nff, f902

COMBUSTION TEST

FLUE

Next: End

COMBUSTION TEST

PACK - BOILER HARDWARE

Next: End

OBSERVATION PILOT & BURNER IGNITES - NO PILOT - STIFF

FAN ASSEMBLY

Next: End

OBSERVATION PILOT & BURNER IGNITES - NO PILOT

KIT - TUBES - PRESSURE SENSING

Next: End

OBSERVATION PILOT & BURNER IGNITES - NO PILOT

KIT - SWITCH - AIR PRESSURE

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

KIT - IGNITION ELECTRODE

Next: End

OBSERVATION PILOT & BURNER IGNITES - NO PILOT

INJECTOR - PILOT BURNER / KIT - INJECTOR

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 - 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 - SHUTS DOWN TOO EARLY

KIT - HARNESS - THERMOSTAT

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

FUSE INVESTIGATION - APPLIANCE

GAS VALVE

Next: End

FUSE INVESTIGATION - APPLIANCE

GAS VALVE - PILOT SOLENOID

Next: End

FUSE INVESTIGATION - MAINS

GAS VALVE - PILOT SOLENOID

Next: End

FUSE INVESTIGATION - MAINS

GAS VALVE

Next: End

FUSE INVESTIGATION - MAINS

PUMP

Next: End

NO APPARENT FAULT

FUSE FURTHER INVESTIGATION (MAINS)

Next: End

OBSERVATION PILOT & BURNER IGNITES - NO PILOT

HEAT EXCHANGER ASSEMBLY (FLUEWAYS)

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

FUSE INVESTIGATION - MAINS

FAN ASSEMBLY

Next: End

FUSE INVESTIGATION (MAINS)

KIT - FIXINGS - GENERAL

Next: End

FUSE INVESTIGATION - APPLIANCE

FAN ASSEMBLY

Next: End

FUSE INVESTIGATION (APPLIANCE)

KIT - FIXINGS - GENERAL

Next: End

OBSERVATION CH - SHUTS OFF FAN CONTINUES - MAIN SOLENOID

PCB 25E - PACTROL

Next: End

OBSERVATION PILOT & BURNER IGNITES

Next: End

BOTH LEDS ILLUMINATED

PCB 25E - PACTROL

Next: End

BOTH LEDS ILLUMIANTED

HARNESS - PRESSURE SWITCH/FAN/LIMITSTAT/FLUESTAT

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

KIT - HARNESS - THERMOSTAT

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

KIT - HARNESS - MAINS

Next: End

OBSERVATION FAN RUNS - NO LED

PCB 25E - PACTROL

Next: End

OBSERVATION FAN RUNS - LED ILLUMINATED - NO FAN

HARNESS - PRESSURE SWITCH/FAN/LIMITSTAT/FLUESTAT

Next: End

OBSERVATION FAN RUNS

KIT - HARNESS - THERMOSTAT

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

KIT - HARNESS - THERMOSTAT

Next: End

OBSERVATION FAN RUNS

THERMOSTAT - LIMIT - SPARE

Next: End

OBSERVATION FAN RUNS

KIT - THERMOSTAT - FLUE PROTECTION

Next: End

OBSERVATION FAN RUNS - PLASTIC KIT FITTED

KIT - TUBES - PRESSURE SENSING

Next: End

OBSERVATION FAN RUNS - WITH PLASTIC KIT

FAN ASSEMBLY - VENTURI

Next: End

OBSERVATION FAN RUNS

KIT - SYPHON

Next: End

OBSERVATION PILOT & BURNER IGNITES - NO PILOT

KIT - SYPHON

Next: End

FLUE OVERHEAT

PUMP - NOT RUNNING

Next: End

FLUE OVERHEAT

SYSTEM PRESSURE / AIR IN SYSTEM

Next: End

OBSERVATION FAN RUNS - FLUE OVERHEAT

PUMP

Next: End

FLUE OVERHEAT

HEAT EXCHANGER ASSEMBLY (FLUEWAYS)

Next: End

OBSERVATION FAN RUNS - FLUE STAT TRIPPED

FLUE

Next: End

FLUE OVERHEAT

Next: End

OBSERVATION PILOT BURNER IGNITES - BAFFLES

FLUE

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

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

OBSERVATION PILOT & BURNER IGNITES - NO MAIN BURNER

KIT - IGNITION ELECTRODE

Next: End

OBSERVATION PILOT & BURNER IGNITES - NO MAIN BURNER

INJECTOR - PILOT BURNER / KIT - INJECTOR

Next: End

OBSERVATION CH - SHUTS OFF FAN CONTINUES - PILOT SOLENOID - PLASTIC KIT

PCB 25E - PACTROL

Next: End

OBSERVATION CH - SHUTS OFF FAN CONTINUES

KIT - THERMOSTAT - FLUE PROTECTION

Next: End

FLUE OVERHEAT PRESSURE BURNER

INLET PRESSURE

Next: End

OBSERVATION PILOT & BURNER IGNITES - NO PILOT

GAS VALVE - PILOT SOLENOID

Next: End

COMBUSTION TEST

HEAT EXCHANGER ASSEMBLY (CONDENSING FLUEWAYS)

Next: End

FLUE OVERHEAT

HEAT EXCHANGER ASSEMBLY (CONDENSING FLUEWAYS)

Next: End

OBSERVATION PILOT & BURNER IGNITES - BAFFLES

HEAT EXCHANGER ASSEMBLY (CONDENSING FLUEWAYS)

Next: End

OBSERVATION PILOT & BURNER IGNITES - NO PILOT

HEAT EXCHANGER ASSEMBLY (CONDENSING FLUEWAYS)

Next: End

COMBUSTION TEST

NO FAULT - COMBUSTION TEST

Next: End

COMBUSTION TEST

KIT - GASKET & GROMMET

Next: End

COMBUSTION TEST

INJECTOR - MAIN

Next: End

OBSERVATION PILOT & BURNER IGNITES - NO PILOT

HARNESS - PRESSURE SWITCH/FAN/LIMITSTAT/FLUESTAT

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

KIT - LEAD HARNESS - 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

FUSE INVESTIGATION - APPLIANCE - MAIN SOLENOID

KIT - LEAD HARNESS - GAS VALVE

Next: End

FUSE INVESTIGATION - APPLIANCE - PILOT SOLENOID

KIT - LEAD HARNESS - GAS VALVE

Next: End

NO APPARENT FAULT

FUSE FURTHER INVESTIGATION (APPLIANCE)

Next: End

FUSE INVESTIGATION - MAINS - PILOT SOLENOID

KIT - LEAD HARNESS - GAS VALVE

Next: End

FUSE INVESTIGATION - MAINS - MAIN SOLENOID

KIT - LEAD HARNESS - GAS VALVE

Next: End

OPERATION DHW - DOES NOT RESPOND

Next: End

FUSE INVESTIGATION - MAINS

Next: End

OBSERVATION BOILER STANDBY

Next: End

OBSERVATION BOILER STANDBY

GAS VALVE

Next: End

FUSE INVESTIGATION - MAINS

HARNESS - PRESSURE SWITCH/FAN/LIMITSTAT/FLUESTAT

Next: End

FUSE INVESTIGATION - APPLIANCE

HARNESS - PRESSURE SWITCH/FAN/LIMITSTAT/FLUESTAT

Next: End

OPERATION CH - SHUTS OFF FAN CONITNUES

GAS VALVE

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

OBSERVATION PILOT BURNER IGNITES - NO PILOT - IGNORING APS

PCB 25E - PACTROL

Next: End

OBSERVATION FAN RUNS - PLASTIC KIT

HARNESS - PRESSURE SWITCH/FAN/LIMITSTAT/FLUESTAT

Next: End

OBSERVATION FAN RUNS - TRIPPED

KIT - THERMOSTAT - FLUE PROTECTION

Next: End

OBSERVATION FAN RUNS - WITH PLASTIC KIT

KIT - SWITCH - AIR PRESSURE

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

GAS VALVE - ADJUSTMENT

Next: End

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

PCB 25E - PACTROL

Next: End

OBSERVATION CH - SHUTS OFF FAN CONTINUES

THERMOSTAT - LIMIT - SPARE

Next: End

OPERATION CH - SHUTS OFF FAN CONITNUES

GAS VALVE - PILOT SOLENOID

Next: End

OPERATION CH - SHUTS OFF FAN CONTINUES

Z REDIRECT

Next: End

OBSERVATION PILOT & BURNER IGNITES - NO PILOT

KIT - LEAD HARNESS - GAS VALVE

Next: End

FLUE OVERHEAT PRESSURE BURNER

GAS VALVE - ADJUSTMENT

Next: End

OBSERVATION FAN RUNS

KIT - THERMOSTAT - FLUE PROTECTION - TRIPPING EARLY

Next: End

OBSERVATION PILOT & BURNER IGNITES - BAFFLES

FAN ASSEMBLY

Next: End

OBSERVATION PILOT & BURNER IGNITES - NO PILOT - RUNNING SLOW

FAN ASSEMBLY

Next: End

CORK GASKET DAMAGED

CHARACTERISTIC TEST FROM INSPECTION INJECTOR AND GASKET

Next: !p1015

INJECTOR UNSATISFACTORY

CHARACTERISTIC TEST FROM INSPECTION INJECTOR AND GASKET

Next: !p1017

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: p893

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

FLUE STAT HAS TRIPPED BUT WILL NOT RESET

Next: !p770

FLUE STAT HAS TRIPPED BUT RESETS - INVESTIGATE CAUSE

Next: p843

05/08/2019 08:30:30 1907_1_50_1 08/08/2019 11:22:13

06/08/2019 09:30:26

Next: End

INSPECTION FAN FREE TO TURN

Next: p800, !f104

RESISTANCE AIR PRESSURE SWITCH WITH KIT

REMOVE THE WIRES AND

Next: !p109, !f110

SOCKET AND SEE POLARITY CHECK

{GAINPCBACS}

Next: p924, !f609

RESISTANCE GAS VALVE MAIN SOLENOID

DISCONNECT LEADS FROM MAIN SOLENOID (RIGHT HAND SIDE)

Next: !p219, !f220

INSPECTION PCB FITTED SECURELY

Next: p534, !f551

INSPECTION PCB FITTED SECURELY

Next: p552, !f565

RESISTANCE GAS VALVE MAIN SOLENOID (FUSE INVESTIGATION)

DISCONNECT LEADS FROM MAIN SOLENOID (RIGHT HAND SIDE)

Next: !p327, !f328

RESISTANCE GAS VALVE PILOT SOLENOID (FUSE INVESTIGATION)

DISCONNECT LEADS FROM PILOT SOLENOID (LEFT HAND PLUG)

Next: !p334, !f335

RESISTANCE GAS VALVE PILOT SOLENOID (FUSE INVESTIGATION)

DISCONNECT LEADS FROM PILOT SOLENOID (LEFT HAND PLUG)

Next: !p348, !f349

RESISTANCE GAS VALVE MAIN SOLENOID (FUSE INVESTIGATION)

DISCONNECT LEADS FROM MAIN SOLENOID (RIGHT HAND SIDE)

Next: !p351, !f352

RESISTANCE FAN (FUSE INVESTIGATION)

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

Next: !p549, !f550

RESISTANCE FAN (FUSE INVESTIGATION)

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

Next: !p563, !f564

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

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 LIVE, NEU

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

VOLTAGE AIR PRESSURE SWITCH (N/O)

Next: !p76, f103

OBSERVATION HAS FLUE STAT TRIPPED

Next: p758, ?769, ?771

INSPECTION CONDENSATE

Next: p793, !f798

PRESSURE GAS INLET (OPERATION)

ATTACH A PRESSURE GAUGE TO THE INLET PRESSURE TEST POINT

Next: !p891, !f892

PRESSURE BURNER (COMBUSTION)

ATTACH A PRESSURE GAUGE TO THE BURNER PRESSURE TEST POINT

Next: !p903, f904

PRESSURE GAS INLET (OPERATION)

ATTACH A PRESSURE GAUGE TO THE INLET PRESSURE TEST POINT

Next: !p905, !f906

INSPECTION INSULATION PADS

Next: p908, !f909

RESISTANCE AIR PRESSURE SWITCH AND HARNESS (N/C)

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

Next: p940, f937

OBSERVATION HAS FLUE STAT TRIPPED (OPERATION)

Next: !p938, f944

RESISTANCE GAS VALVE PILOT SOLENOID

DISCONNECT LEADS FROM PILOT SOLENOID (LEFT HAND PLUG)

Next: !p95, !f96

FLUE STAT FURTHER INVESTIGATION

Next: !p945, !f946

PRESSURE GAS INLET (OPERATION)

ATTACH A PRESSURE GAUGE TO THE INLET PRESSURE TEST POINT

Next: !p958, !f959

INSPECTION FLUE ADAPTOR

REMOVE FAN ASSEMBLY AND CONDENSING HEAT EXCHANGER ADAPTOR

Next: p1010, !f1011

INSPECTION INJECTOR AND GASKET

REMOVE BURNER ASSEMBLY

Next: !p1012, ?1014, ?1016

INSPECTION AIR PRESSURE SWITCH TUBES

Next: p107, !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: p988, !f394

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

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

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

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: p898, !f278

RESISTANCE GAS VALVE MAIN SOLENOID AND HARNESS (FUSE INVESTIGATION)

DISCONNECT GAS VALVE PLUG FROM PCB (RIGHTMOST PLUG)

Next: p339, f350

RESISTANCE GAS VALVE MAIN SOLENOID AND HARNESS (FUSE INVESTIGATION)

DISCONNECT GAS VALVE PLUG FROM PCB (RIGHTMOST PLUG)

Next: p329, f326

RESISTANCE GAS VALVE PILOT SOLENOID AND HARNESS (FUSE INVESTIGATION)

DISCONNECT GAS VALVE PLUG FROM PCB (RIGHTMOST PLUG)

Next: !p336, f333

RESISTANCE GAS VALVE PILOT SOLENOID AND HARNESS (FUSE INVESTIGATION)

DISCONNECT GAS VALVE PLUG FROM PCB (RIGHTMOST PLUG)

Next: p384, f347

RESISTANCE PUMP

REMOVE PUMP COVER / PLUG

Next: p385, !f386

OBSERVATION REMOVE PERMANENT MAINS SUPPLY TO APPLIANCE

REMOVE THE MAINS SUP

Next: !p387, !f388

OBSERVATION PILOT

Next: p591, f929

INSPECTION FAN FREE TO TURN

Next: p451, !f419

INSPECTION BURNER

REMOVE BURNER ASSEMBLY

Next: p883, !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: p985, !f500

RESISTANCE FAN AND HARNESS (FUSE INVESTIGATION)

DISCONNECT FAN PLUG FROM PCB (TOP LEFT MARKED FAN)

Next: p297, f548

RESISTANCE FAN AND HARNESS (FUSE INVESTIGATION)

DISCONNECT FAN PLUG FROM PCB (TOP LEFT MARKED FAN)

Next: p311, f562

VOLTAGE MAIN SOLENOID AT PCB (DROPPING OUT)

{GAINPCBACS}

Next: !p595, !f596

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

RESISTANCE HARNESS MAINS

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

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 (RHS, REFER TO PICTURE)

Next: p716, f756

RESISTANCE ON/OFF SWITCH AND HARNESS

DISCONNECT ON/OFF SWITCH PLUG FROM PCB (BOTTOM LEFT)
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

RESISTANCE AIR PRESSURE SWITCH (N/C)

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

Next: p759, f787

RESISTANCE LIMIT THERMOSTAT

DISCONNECT WIRES FROM LIMIT THERMOSTAT
TAKE CARE AS APPLIANCE MAY BE HOT

Next: p765, !f766

RESISTANCE FLUE STAT

DISCONNECT WIRES FROM FLUE THERMOSTAT
ENSURE BOILER IS COOL

Next: !p767, !f768

INSPECTION AIR PRESSURE SWITCH TUBES

Next: p794, !f795

INSPECTION FAN VENTURI

REMOVE FAN VENTURI FROM FAN

Next: !p796, !f797

INSPECTION CONDENSATE

Next: p105, !f816

OBSERVATION PUMP RUNNING

LOCATE SYSTEM PUMP

Next: p844, !f845

INSPECTION SYSTEM FILLED AND VENTED

Next: p947, !f847

PUMP LIMPET TEST

Next: p848, !f849

INSPECTION EXTERNAL BYPASS

Next: p875, !f880

RESISTANCE GAS VALVE PILOT SOLENOID AND HARNESS

DISCONNECT GAS VALVE PLUG FROM PCB (RIGHTMOST PLUG)

Next: p168, f94

INSPECTION HEAT EXCHANGER

REMOVE FAN & HOOD ASSEMBLY
REMOVE HEAT EXCHANGER BAFFLES

Next: p982, !f873

INSPECTION FLUE

Next: p869, !f879

INSPECTION FLUE

Next: p498, !f888

INSPECTION SYSTEM FILLED AND VENTED

Next: p894, !f895

PUMP LIMPET TEST

Next: !p896, !f897

INSPECTION BURNER

REMOVE BURNER ASSEMBLY

Next: !p899, !f900

INSPECTION BURNER FITTED CORRECTLY

Next: p910, !f911

INSPECTION BURNER

REMOVE BURNER ASSEMBLY

Next: p991, !f913

INSPECTION HEAT EXCHANGER

REMOVE FAN & HOOD ASSEMBLY
REMOVE HEAT EXCHANGER BAFFLES

Next: p968, !f915

INSPECTION ELECTRODE AND LEAD

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

Next: p925, !f926

INSPECTION PILOT INJECTOR

REMOVE BURNER
REMOVE MAIN & PILOT INJECTOR ASSEMBLY
REMOVE PILOT INJECTOR

Next: !p927, !f928

VOLTAGE PILOT SOLENOID AT PCB (DROPPING OUT)

{GAINPCBACS}

Next: !p941, !f942

PRESSURE BURNER

ATTACH A PRESSURE GAUGE TO THE BURNER PRESSURE TEST POINT

Next: p846, f957

INSPECTION CONDENSING HEAT EXCHANGER

REMOVE FAN & HEAT EXCHANGER ADAPTOR
REMOVE SUMP

Next: p1009, !f980

INSPECTION CONDENSING HEAT EXCHANGER

REMOVE FAN & HEAT EXCHANGER ADAPTOR
REMOVE SUMP

Next: !p983, !f984

INSPECTION CONDENSING HEAT EXCHANGER

REMOVE FAN & HEAT EXCHANGER ADAPTOR
REMOVE SUMP

Next: !p986, !f987

INSPECTION CONDENSING HEAT EXCHANGER

REMOVE FAN & HEAT EXCHANGER ADAPTOR
REMOVE SUMP

Next: !p989, !f990

INSPECTION FLUE

Next: p912, !f1007

Welcome to the XSol Diagnostic System