XSol Diagnostic System

Interactive Test Sequence Navigator

Welcome to the XSol Diagnostic System

This system provides interactive diagnostic tests with proper sequence navigation based on the decoded .seq file logic.

Start Diagnostic Sequence

or choose a specific test below:

POTTERTON GOLD FSB 30 HE GBM

GLOBALLY REPLACED

Next: &1, *

APPLIANCE APPEARS SATISFACTORY

Next: nff

CASE OFF

OUTER CASE REMOVAL

Next: &2184, !f2

SPARKING PRESENT

Next: &74, f176

BURNER IGNITES AND ESTABLISHES

Next: &117, ?75, ?77, ?79, ?1911

BOILER OPERATION

Next: &711, ?118, ?120, ?122, ?124, ?1402, ?2449

DIAGNOSTIC OPTION

Next: &589, !f588

FAULT CODES

Next: &939, !f590

FAULT MAINS SUPPLY

THIS PAGE IS NOT USED

Next: &nff, f596

FAULT_DRY FIRE

THIS PAGE IS NOT USED
LINKS TO FLOW AND RETURN REVERSED

Next: &nff, f609

FAULT REVERSED POLARITY

THIS PAGE IS NOT USED
LINKS TO MAINS SUPPLY INTO BOILER

Next: &nff, f613

FAULT PCB ERROR

THIS PAGE IS NOT USED
LINKS TO FAULT FOUND-PCB MAIN

Next: &nff, !f632

FAULT_ INSUFFICIENT ELECTRIC SUPPLY

THIS PAGE IS NOT USED
LINKS TO MAINS POWER TO BOILER

Next: &nff, f631

FAULT LOW VOLTAGE HARNESS

THIS PAGE IS NOT USED
LINKS TO -HARNESS LOW VOLTAGE

Next: &nff, f1499

DHW DEMAND

EXTERNAL DHW CONTROLS CALLING FOR HEAT

Next: &nff, !f712

FAN RUNS

Next: &68, f2368

PCB FURTHER INVESTIGATION

OK TO BE BLANK

Next: &nff, f1150

FUSE FURTHER INVESTIGATION

HEADER FOR FUSE INVESTIGATION

Next: &nff, f1027

OBSERVATION MAINS LED ILLUMINATED

Next: &587, f2193

FAULT_FAN FAULT

OUTSIDE MODEL

Next: &nff, f2498

HEADER FOR INTERMITTENT IGNITION INVESTIGATION

HEADER FOR INTERMITTENT IGNITION LOCKOUT INVESTIGATION - NOT USED

Next: &nff, f2520

LITE DIAGNOSTIC

DIAGNOSIS RELIES ON

Next: &nff, !f2657

QUICK ACCESS DATA AND INFORMATION

THE TABLE BELOW SHOW

Next: &nff, !f2659

HEADER FOR QADAI FLOW THERMISTOR RESISTANCE

Next: &nff, f2661

HEADER FOR QADAI GAS VALVE RESISTANCE

Next: &nff, f2665

HEADER FOR QADAI GAS VALVE VOLTAGE

Next: &nff, f2669

HEADER FOR QADAI FAN RESISTANCE

Next: &nff, f2673

_PCB_MAINS FAULT CODE

FUSE

Next: End

FURTHER INVESTIGATION FAN

PCB + HARNESS MAIN

Next: End

OVERHEAT

SEAL COMBUSTION

Next: End

OVERHEAT DURING OP

THERMISTOR - FLOW TEMPERATURE

Next: End

OVERHEAT WILL NOT RESET

THERMISTOR - FLOW TEMPERATURE

Next: End

OVERHEATING

PUMP

Next: End

_OPEN OR SHORT CIRCUIT_MAINS FAULT CODE

Next: End

RADS TOO HOT

THERMISTOR - FLOW TEMPERATURE

Next: End

RADS TOO MUCH HEAT

PCB CONTROL JUMPERS

Next: End

OC_MAINS FAULT CODE

FILTER - EMC

Next: End

BOILER NOISEY

PUMP

Next: End

PRIMARY13

THERMISTOR - FLOW TEMPERATURE

Next: End

BOILER NOISY_BOILER OPERATION

PCB CONTROL JUMPERS

Next: End

BOILER OUTPUT INSUFFICIENT15

FAN

Next: End

FAN_BOILER OUTPUT INSUFFICIENT15

HARNESS MAIN

Next: End

RADIATORS PROVIDE INSUFFICIENT HEAT15

GAS INLET PRESSURE

Next: End

RADIATORS PROVIDE INSUFFICIENT HEAT15

PIPE - FEED - BURNER

Next: End

RESTRICTED_BOILER OUTPUT INSUFFICIENT15

VENTURI

Next: End

PRIMARY14

THERMISTOR - FLOW TEMPERATURE

Next: End

POOR HEAT

PCB CONTROL JUMPERS

Next: End

BOILER TO TEMPERATURE RADIATORS COOL

PUMP

Next: End

PCB NOT READING_FAULT LOW VOLTAGE HARNESS

HARNESS MAIN

Next: End

BOILER TO TEMPERATURE RADIATORS COOL

Next: End

FAN DOES NOT RUNFAULT DRY FIRE

HARNESS MAIN

Next: End

LOW VOLTAGE_FAULT INSUFFICIENT SUPPLY

KIT - PCB ENCLOSURE

Next: End

BOILER AND RADS ONLY GET WARM

PUMP

Next: End

NO SPARKING

KIT - ELECTRODE - 1 SHORT AND 2 LONG

Next: End

NO SPARKING

KIT - ELECTRODE - 3 SHORT WIRES

Next: End

NO SPARKING

KIT - ELECTRODE (NO WIRES)

Next: End

NO SPARKING

HARNESS IGNITION

Next: End

NO SPARKING

HARNESS IGNITION (3 SHORT WIRES)

Next: End

BURNER DOES NOT IGNITE

KIT - PCB ENCLOSURE

Next: End

BURNER DOES NOT IGNITE

VALVE - GAS

Next: End

BURNER DOES NOT IGNITE

PIPE - FEED - BURNER

Next: End

NO GAS FLOW

PIPE 5MM

Next: End

SPARKING PRESENT CH

KIT - ELECTRODE

Next: End

WRONG GAS RATE

HARNESS MAIN

Next: End

RADIATORS PROVIDE INSUFFICIENT HEAT

GAS INLET PRESSURE

Next: End

BURNER DOES NOT IGNITE POOR IGNITION

KIT - ELECTRODE

Next: End

DOES NOT IGNITE POOR IGNITION

KIT - ELECTRODE - 1 SHORT AND 2 LONG

Next: End

DOES NOT IGNITE POOR IGNITION

KIT - ELECTRODE - 3 SHORT WIRES

Next: End

DOES NOT IGNITE POOR IGNITION

HARNESS IGNITION (3 SHORT WIRES)

Next: End

DOES NOT IGNITE POOR IGNITION

KIT - ELECTRODE (NO WIRES)

Next: End

BURNER DOES NOT IGNITE POOR IGNITION

HARNESS IGNITION

Next: End

BURNER DOES NOT IGNITE POOR IGNITION

BURNER ASSEMBLY

Next: End

POOR IGNITION

GAS INLET PRESSURE

Next: End

POOR IGNITION

PIPE - FEED - BURNER

Next: End

IGNITION SETTING

PCB CONTROL JUMPERS

Next: End

POOR IGNITION

PIPE 5MM

Next: End

RADS ONLY GET WARM

FLUE

Next: End

RESTRICTED_BOILER OUTPUT INSUFFICIENT

VENTURI

Next: End

RADIATORS PROVIDE INSUFFICIENT HEAT

PIPE - FEED - BURNER

Next: End

BOILER OUTPUT INSUFFICIENT

FAN

Next: End

RADS ONLY GET WARM

BURNER ASSEMBLY

Next: End

RADS ONLY GET WARM

HEAT EXCHANGER FLUE WAYS

Next: End

CASE OFF

Z REDIRECTION BY HTML LINK

Next: End

FUSE OR RCD

HARNESS MAIN

Next: End

FUSE OR RCD

VALVE - GAS

Next: End

RESTRICTED / BLOCKED

KIT - CONDENSATE TRAP

Next: End

POOR IGNITION

KIT - CONDENSATE TRAP

Next: End

DOES NOT IGNITE

KIT - CONDENSATE TRAP

Next: End

BURNER DOES NOT IGNITE

VENTURI

Next: End

BURNER DOES NOT IGNITE

PIPE 5MM

Next: End

BURNER DOES NOT IGNITE

KIT - ELECTRODE

Next: End

DOES NOT IGNITE

KIT - ELECTRODE - 1 SHORT AND 2 LONG

Next: End

DOES NOT IGNITE

KIT - ELECTRODE - 3 SHORT WIRES

Next: End

DOES NOT IGNITE

HARNESS IGNITION (3 SHORT WIRES)

Next: End

DOES NOT IGNITE

KIT - ELECTRODE (NO WIRES)

Next: End

BURNER DOES NOT IGNITE

HARNESS IGNITION

Next: End

BURNER DOES NOT IGNITE

BURNER ASSEMBLY

Next: End

BURNER DOES NOT IGNITE

FLUE

Next: End

BAFFLES

KIT - CONDENSATE TRAP

Next: End

BURNER BAFFLES

PIPE 5MM

Next: End

BAFFLES

VENTURI

Next: End

BAFFLES

SEAL COMBUSTION

Next: End

LEVEL SWITCH FAULTY

PUMP ASSEMBLY - CONDENSATE

Next: End

NO POWER TO CONDESE PUMP 2

KIT - PCB ENCLOSURE

Next: End

CONDENSE PUMP NOT EMPTYING

CONDENSATE PIPE

Next: End

CONDENSATE TRAP

HARNESS MAIN

Next: End

POOR SUPPLY_BURNER IGNITES BUT DOES BNOT ESTABLISH

GAS INLET PRESSURE

Next: End

BURNER IGNITES BUT DOES NOT ESTABLISH

KIT - ELECTRODE

Next: End

RESTRICTED_BURNER LIGHTS BUT DOESNT ESTABLISH

FLUE

Next: End

BURNER IGNITES BUT DOES NOT ESTABLISH

PIPE 5MM

Next: End

PATH TO EARTH

THERMISTOR - FLOW TEMPERATURE

Next: End

SHORTED TO EARTH

THERMOSTAT - FAN PROTECTION

Next: End

SHORTED TO EARTH

THERMOSTAT - SAFETY

Next: End

MOTOR BLOWING FUSE

PUMP ASSEMBLY - CONDENSATE

Next: End

FAN RUNS

FILTER - EMC

Next: End

FAN RUNS

FUSE

Next: End

NO POWER TO PUMP

Next: End

FLOW SWITCH OC_PUMP FED BY BOILER

PUMP

Next: End

FAN DOES NOT RUN 2

HARNESS MAIN

Next: End

FAN RUNS

HARNESS MAIN

Next: End

SEIZED

FAN

Next: End

RESISTANCE

FAN

Next: End

NO POWER ON SWITCHED LIVE

Next: End

FAN RUNS

THERMOSTAT - SAFETY

Next: End

FAN RUNS

THERMOSTAT - FAN PROTECTION

Next: End

FAN RUNS

THERMISTOR - FLOW TEMPERATURE

Next: End

FAN RUNS RESISTOR DAMAGED

HARNESS MAIN

Next: End

FAN RUNS

RESET BUTTON

Next: End

NO POWER TO PUMP OVERHEAT

Next: End

FLOW SWITCH OC_PUMP FED BY BOILER OVERHEAT

PUMP

Next: End

BOILER LOCKS OUT AFTER 3 MINS

KIT - CONDENSATE TRAP

Next: End

FAULTY LEVEL SWITCH 2

PUMP ASSEMBLY - CONDENSATE

Next: End

NO VOLTAGE TO CONDENSE PUMP 3

KIT - PCB ENCLOSURE

Next: End

LOCKING OUT AFTER 3

CONDENSATE PIPE

Next: End

BLOWN

FUSE MAINS

Next: End

BURRED_BOILER_NOISY

VENTURI

Next: End

FURTHER INVESTIGATION

PCB + GAS VALVE

Next: End

MOTOR DAMAGING PCB

PUMP ASSEMBLY - CONDENSATE

Next: End

_LOW VOLTAGE_FAULT INSUFFICIENT SUPPLY

Next: End

BURNER IGNITES BUT DOES NOT ESTABLISH

BURNER ASSEMBLY

Next: End

BURNER IGNITES BUT DOES NOT ESTABLISH

HEAT EXCHANGER FLUE WAYS

Next: End

BURNER IGNITES BUT DOES NOT ESTABLISH REAR

HEAT EXCHANGER FLUE WAYS

Next: End

BURNER BAFFLES

FLUE

Next: End

BURNER BAFFLES OUT

HEAT EXCHANGER FLUE WAYS

Next: End

BURNER BAFFLES OUT REAR

HEAT EXCHANGER FLUE WAYS

Next: End

RADS ONLY GET WARM REAR

HEAT EXCHANGER FLUE WAYS

Next: End

FAN FAULT FAN RUNS

HARNESS MAIN

Next: End

FAN FAULT SEIZED

FAN

Next: End

FAN FAULT RESISTANCE

FAN

Next: End

FAN FAULT

HARNESS MAIN

Next: End

INTERMITTENT IGNITION

GAS INLET PRESSURE

Next: End

NO SPARKING INTERMITTENT IGNITION

KIT - ELECTRODE - 1 SHORT AND 2 LONG

Next: End

NO SPARKING INTERMITTENT IGNITION

KIT - ELECTRODE - 3 SHORT WIRES

Next: End

NO SPARKING INTERMITTENT IGNITION

HARNESS IGNITION (3 SHORT WIRES)

Next: End

NO SPARKING INTERMITTENT IGNITION

KIT - ELECTRODE (NO WIRES)

Next: End

NO SPARKING INTERMITTENT IGNITION

HARNESS IGNITION

Next: End

INTERMITTENT IGNITION

HARNESS MAIN

Next: End

NO SPARKING INTERMITTENT

KIT - ELECTRODE - 1 SHORT AND 2 LONG

Next: End

INTERMITTENT IGNITION1 SHORT WIRE 2 LONG

KIT - CONDENSATE TRAP

Next: End

INTERMITTENT IGNITION1 SHORT WIRE 2 LONG

PIPE 5MM

Next: End

RADS ONLY GET WARMINTERMITTENT1 SHORT WIRE 2 LONG

FLUE

Next: End

RESTRICTED_BOILER OUTPUT INSUFFICIENTINTERMITTENT1 SHORT WIRE 2 LONG

VENTURI

Next: End

RADIATORS PROVIDE INSUFFICIENT HEATINTERMITTENT1 SHORT WIRE 2 LONG

PIPE - FEED - BURNER

Next: End

RADS ONLY GET WARMINTERMITTENT1 SHORT WIRE 2 LONG

BURNER ASSEMBLY

Next: End

NO SPARKING INTERMITTENT

KIT - ELECTRODE - 3 SHORT WIRES

Next: End

NO SPARKING INTERMITTENT

HARNESS IGNITION (3 SHORT WIRES)

Next: End

INTERMITTENT IGNITION3 SHORT WIRES

KIT - CONDENSATE TRAP

Next: End

INTERMITTENT IGNITION3 SHORT WIRES

PIPE 5MM

Next: End

RADS ONLY GET WARMINTERMITTENT3 SHORT WIRES

FLUE

Next: End

RESTRICTED_BOILER OUTPUT INSUFFICIENTINTERMITTENT3 SHORT WIRES

VENTURI

Next: End

RADIATORS PROVIDE INSUFFICIENT HEATINTERMITTENT3 SHORT WIRES

PIPE - FEED - BURNER

Next: End

RADS ONLY GET WARMINTERMITTENT3 SHORT WIRES

BURNER ASSEMBLY

Next: End

NO SPARKING INTERMITTENT

KIT - ELECTRODE (NO WIRES)

Next: End

NO SPARKING INTERMITTENT

HARNESS IGNITION

Next: End

INTERMITTENT IGNITION

KIT - CONDENSATE TRAP

Next: End

INTERMITTENT IGNITION

PIPE 5MM

Next: End

RADS ONLY GET WARMINTERMITTENT

FLUE

Next: End

RESTRICTED_BOILER OUTPUT INSUFFICIENTINTERMITTENT

VENTURI

Next: End

RADIATORS PROVIDE INSUFFICIENT HEATINTERMITTENT

PIPE - FEED - BURNER

Next: End

RADS ONLY GET WARMINTERMITTENT

BURNER ASSEMBLY

Next: End

NOT RECOGNISING HALL SENSOR WHITE LABEL

KIT - PCB ENCLOSURE

Next: End

FAN NEUTAL FAULT WHITE LABEL

KIT - PCB ENCLOSURE

Next: End

NOT RECOGNISING HALL SENSOR

KIT - PCB ENCLOSURE

Next: End

FAN NEUTAL FAULT

KIT - PCB ENCLOSURE

Next: End

NO VOLTAGE TO FAN HALL SENSOR (WHITE LABEL)

KIT - PCB ENCLOSURE

Next: End

FAN FAULT - HALL SENSOR (WHITE LABEL)

FAN

Next: End

NO VOLTAGE TO FAN HALL SENSOR

KIT - PCB ENCLOSURE

Next: End

FAN FAULT - HALL SENSOR

FAN

Next: End

NOT RECOGNISING HALL SENSOR WHITE LABEL FAN FAULT CODE

KIT - PCB ENCLOSURE

Next: End

FAN NEUTAL FAULT WHITE LABEL FAN FAULT CODE

KIT - PCB ENCLOSURE

Next: End

NOT RECOGNISING HALL SENSOR FAN FAULT CODE

KIT - PCB ENCLOSURE

Next: End

FAN NEUTAL FAULT FAN FAULT CODE

KIT - PCB ENCLOSURE

Next: End

NO SPARKING

VALVE - GAS

Next: End

INTERMITTENT IGNITION

HEAT EXCHANGER FLUE WAYS

Next: End

INTERMITTENT IGNITION 1

HEAT EXCHANGER FLUE WAYS

Next: End

INTERMITTENT IGNITION 2

HEAT EXCHANGER FLUE WAYS

Next: End

LITE DIAGNOSTIC

Z REDIRECTION BY HTML LINK

Next: End

BLANK FOR QADAI

Z REDIRECT

Next: End

QADAI

THERMISTOR - FLOW TEMPERATURE

Next: End

QADAI

VALVE - GAS

Next: End

QADAI

KIT - PCB ENCLOSURE

Next: End

QADAI

FAN

Next: End

DIAGNOSTIC OPTION

Z REDIRECTION BY HTML LINK

Next: End

_FAULT CODES

Z REDIRECTION BY HTML LINK

Next: End

REVERSED_DRY FIRE

FLOW AND RETURN

Next: End

POLARITY_FAULT REVERSED POLARITY

Next: End

ERROR_FAULT PCB

KIT - PCB ENCLOSURE

Next: End

LOW VOLTAGE_INSUFFICIENT SUPPLY

HARNESS MAIN

Next: End

DHW DEMAND

Next: End

DIES AWAY

GAS INLET PRESSURE

Next: End

PRIMARY1

THERMISTOR - FLOW TEMPERATURE

Next: End

PUMP WIRED VIA BOILER PUMP FEED26

THERMOSTAT - SAFETY

Next: End

PUMP WIRED VIA BOILER PUMP FEED16

THERMOSTAT - FAN PROTECTION

Next: End

SYSTEM TEST

Next: End

PUMP WIRED VIA BOILER PUMP FEED2

THERMOSTAT - SAFETY

Next: End

PUMP WIRED VIA BOILER PUMP FEED1

THERMOSTAT - FAN PROTECTION

Next: End

2PRIMARY1

THERMISTOR - FLOW TEMPERATURE

Next: End

NO POWER_MAINS FAULT CODE

KIT - PCB ENCLOSURE

Next: End

MAINS SUPPLY FUSE

Z REDIRECTION BY HTML LINK

Next: End

FURTHER INVESTIGATION

PCB + FAN

Next: End

BOILER NOISY_BOILER OPERATION

KIT - PCB ENCLOSURE

Next: End

BOILER NOISY_BOILER OPERATION6

KIT - PCB ENCLOSURE

Next: End

BOILER TOO HOT_BOILER OPERATION

KIT - PCB ENCLOSURE

Next: End

RADS TOO MUCH HEAT

KIT - PCB ENCLOSURE

Next: End

NO POWER_MAINS FAULT CODE

HARNESS MAIN

Next: End

THERMISTOR_FAN RUNS13

HARNESS MAIN

Next: End

HALL SENSOR_BOILER OUTPUT INSUFFICIENT15

KIT - PCB ENCLOSURE

Next: End

RADIATORS PROVIDE INSUFFICIENT HEAT15

VALVE - GAS

Next: End

THERMISTOR_FAN RUNS14

HARNESS MAIN

Next: End

GAS RATE_BOILER OUTPUT INSUFFICIENT

KIT - PCB ENCLOSURE

Next: End

FAULT LOW VOLTAGE HARNESS

KIT - PCB ENCLOSURE

Next: End

BOILER TO TEMPERATURE RADIATORS COOL

Next: End

IGNORING FLOW SWITCH FAULT DRY FIRE

KIT - PCB ENCLOSURE

Next: End

MAINS SUPPLY LOW

BOILER RESET

Next: End

NO SPARKING - ELEC 1 SHORT 2 LONG

KIT - PCB ENCLOSURE

Next: End

NO SPARKING - ELEC 3 SHORT

KIT - PCB ENCLOSURE

Next: End

NO SPARKING

KIT - PCB ENCLOSURE

Next: End

BURNER DOES NOT IGNITE

GAS INLET PRESSURE

Next: End

PCB FAULT NO POWER TO GAS VALVE

Z REDIRECTION BY HTML LINK

Next: End

GAS VALVE_BURNER DOES NOT IGNITE

HARNESS MAIN

Next: End

MECHANICAL FAILURE

VALVE - GAS

Next: End

DOES NOT IGNITE POOR SPARK - ELEC 1 SHORT 2 LONG POOR IGNITION

KIT - PCB ENCLOSURE

Next: End

DOES NOT IGNITE POOR SPARK - ELEC 3 SHORT POOR IGNITION

KIT - PCB ENCLOSURE

Next: End

BURNER DOES NOT IGNITE POOR SPARK POOR IGNITION

KIT - PCB ENCLOSURE

Next: End

DOES NOT IGNITE /W GAS USE POOR IGNITION

VALVE - GAS

Next: End

FUSE OR RCD

FAN

Next: End

FUSE OR RCD 2

HARNESS MAIN

Next: End

DOES NOT IGNITE POOR SPARK - ELEC 1 SHORT 2 LONG

KIT - PCB ENCLOSURE

Next: End

DOES NOT IGNITE POOR SPARK - ELEC 3 SHORT

KIT - PCB ENCLOSURE

Next: End

BURNER DOES NOT IGNITE POOR SPARK

KIT - PCB ENCLOSURE

Next: End

DOES NOT IGNITE /W GAS USE

VALVE - GAS

Next: End

CONDENSE PUMP NOT EMPTYING

PUMP ASSEMBLY - CONDENSATE

Next: End

BURNER IGNITES BUT DOES NOT ESTABLISH

KIT - CONDENSATE TRAP

Next: End

SHORTED TO EARTH 2

HARNESS MAIN

Next: End

PCB BLOWING FUSE

PCB - FUSE INVESTIGATION

Next: End

SHORTED TO EARTH

HARNESS MAIN

Next: End

FAN DOES NOT RUN

HARNESS MAIN

Next: End

FUSE BLOWN

Z REDIRECTION BY HTML LINK

Next: End

LED FAULTY

KIT - PCB ENCLOSURE

Next: End

NOT RUNNING

PUMP

Next: End

OPENCIRCUIT PUMP RUNNING BOILKER FED PUMP

FLOW SWITCH

Next: End

FAN DOES NOT RUN

LOCKOUT

Next: End

FAN RUNS 1

KIT - PCB ENCLOSURE

Next: End

STATS

HARNESS MAIN

Next: End

THERMISTOR

HARNESS MAIN

Next: End

LOCKOUT

KIT - PCB ENCLOSURE

Next: End

NOT RUNNING OVERHEAT

PUMP

Next: End

OPENCIRCUIT PUMP RUNNING BOILKER FED PUMP OVERHEAT

FLOW SWITCH

Next: End

LOCKING OUT AFTER 3 MINS

PUMP ASSEMBLY - CONDENSATE

Next: End

NO POWER TO APPLIANCE

Next: End

BLANK FOR FUSE INVESTIGATION

Z REDIRECTION BY HTML LINK

Next: End

HEAT EXCHANGER_BOILER NOISY

HEAT EXCHANGER ASSEMBLY

Next: End

FURTHER INVESTIGATION GAS VALVE

PCB + HARNESS MAIN

Next: End

FURTHER INVESTIGATION

KIT - PCB ENCLOSURE

Next: End

NO RECTIFICATION_BURNER IGNITES BUT DOESNT ESTABLISH

KIT - PCB ENCLOSURE

Next: End

BAFFLES OUT

VALVE - GAS

Next: End

LOW TEMP OUTPUT

KIT - PCB ENCLOSURE

Next: End

FAN FAULT FAN RUNS 1

KIT - PCB ENCLOSURE

Next: End

NO SPARKING - ELEC 1 SHORT 2 LONG INTERMITTENT IGNITION

KIT - PCB ENCLOSURE

Next: End

NO SPARKING - ELEC 3 SHORT INTERMITTENT IGNITION

KIT - PCB ENCLOSURE

Next: End

NO SPARKING INTERMITTENT IGNITION

KIT - PCB ENCLOSURE

Next: End

ELECTRICAL FAULT PREVENTING RUNNING WHITE LABEL

FAN

Next: End

ELECTRICAL FAULT PREVENTING RUNNING

FAN

Next: End

NOT RECOGNISING HALL SENSOR FAULT CODE (WHITE LABEL)

KIT - PCB ENCLOSURE

Next: End

NOT RECOGNISING HALL SENSOR FAULT CODE

KIT - PCB ENCLOSURE

Next: End

ELECTRICAL FAULT PREVENTING RUNNING WHITE LABEL FAN FAULT CODE

FAN

Next: End

ELECTRICAL FAULT PREVENTING RUNNING FAN FAULT CODE

FAN

Next: End

NO SPARKING

HARNESS MAIN

Next: End

NO FAULT FOUND

INTERMITTENT IGNITION INVESTIGATION

Next: End

NO FAULT FOUND3 SHORT WIRES

INTERMITTENT IGNITION INVESTIGATION

Next: End

NO FAULT FOUND1 SHORT WIRE 2 LONG

INTERMITTENT IGNITION INVESTIGATION

Next: End

FLOW THERMISTOR RESISTANCE

RESULT AS EXPECTED

Next: End

GAS VALVE RESISTANCE

RESULT AS EXPECTED

Next: End

GAS VALVE VOLTAGE

RESULT AS EXPECTED

Next: End

FAN RESISTANCE

RESULT AS EXPECTED

Next: End

POLARITY_FAULT REVERSED POLARITY

KIT - PCB ENCLOSURE

Next: End

PUMP WIRED VIA BOILER PUMP FEED1

KIT - PCB ENCLOSURE

Next: End

THERMISTOR_FAN RUNS1

HARNESS MAIN

Next: End

STAT_PUMP RUNS26

HARNESS MAIN

Next: End

STAT_PUMP RUNS2

HARNESS MAIN

Next: End

2THERMISTOR_FAN RUNS1

HARNESS MAIN

Next: End

BOILER TO TEMPERATURE, RADIATORS COOL

CHARACTERISTIC TEST FROM BOILER OPERATION

Next: p119

OVERHEAT OCCURS DURING OPERATION

CHARACTERISTIC TEST FROM BOILER OPERATION

Next: p849

Boiler noisy

CHARACTERISTIC TEST FROM BOILER OPERATION

Next: p1427

BOILER AND RADIATORS ONLY GET WARM

CHARACTERISTIC TEST FROM BOILER OPERATION

Next: p1454

BOILER AND RADIATORS PROVIDE TOO MUCH HEAT

CHARACTERISTIC TEST FROM BOILER OPERATION

Next: p1403

ELECTRODE HAS 3 SHORT WIRES

CHARACTERISTIC TEST FROM OBSERVATION TYPE OF ELECTRODE FITTED

Next: p1728

ELECTRODE HAS 1 SHORT WIRE AND 2 LONG WIRES

CHARACTERISTIC TEST FROM OBSERVATION TYPE OF ELECTRODE FITTED

Next: p1730

NO DROP OR VERY MINOR DROP IN THE STANDING PRESSURE OBSERVED

CHARACTERISTIC TEST FROM GAS USAGE

Next: p2018

INLET PRESSURE DROPS BELOW 18MB

CHARACTERISTIC TEST FROM GAS USAGE

Next: !p1777

BURNER IGNITES BUT IGNITION POOR (HEAVY / DELAYED / EXPLOSIVE / SLOW)

CHARACTERISTIC TEST FROM BURNER IGNITION

Next: p1940

ELECTRODE HAS 3 SHORT WIRES

CHARACTERISTIC TEST FROM OBSERVATION TYPE OF ELECTRODE FITTED

Next: p1921

ELECTRODE HAS 1 SHORT WIRE AND 2 LONG WIRES

CHARACTERISTIC TEST FROM OBSERVATION TYPE OF ELECTRODE FITTED

Next: p1923

ELECTRODE HAS 3 SHORT WIRES

CHARACTERISTIC TEST FROM OBSERVATION TYPE OF ELECTRODE FITTED

Next: p2080

ELECTRODE HAS 1 SHORT WIRE AND 2 LONG WIRES

CHARACTERISTIC TEST FROM OBSERVATION TYPE OF ELECTRODE FITTED

Next: p2082

APPLIANCE ESTABLISHES AFTER CONDENSE TRAP LEAD DISCONNECTED

CHARACTERISTIC TEST FROM DISCONNECT LEADS FROM CONDENSATE PUMP AND TRAP

Next: p2135

APPLIANCE ESTABLISHES AFTER 6 WAY LEAD TO CONDENSATE PUMP DISCONNECTED

CHARACTERISTIC TEST FROM DISCONNECT LEADS FROM CONDENSATE PUMP AND TRAP

Next: p2137

BOILER GOES TO IGNITION LOCKOUT AFTER ABOUT 3 MINUTES

CHARACTERISTIC TEST FROM BOILER OPERATION

Next: p2451

ELECTRODE HAS 3 SHORT WIRES

CHARACTERISTIC TEST FROM OBSERVATION TYPE OF ELECTRODE FITTED

Next: p2527

ELECTRODE HAS 1 SHORT WIRE AND 2 LONG WIRES

CHARACTERISTIC TEST FROM OBSERVATION TYPE OF ELECTRODE FITTED

Next: p2529

ELECTRODE HAS 3 SHORT WIRES

CHARACTERISTIC TEST FROM OBSERVATION TYPE OF ELECTRODE FITTED

Next: p2545

ELECTRODE HAS 1 SHORT WIRE AND 2 LONG WIRES

CHARACTERISTIC TEST FROM OBSERVATION TYPE OF ELECTRODE FITTED

Next: p2547

Burner does not ignite

CHARACTERISTIC TEST FROM BURNER IGNITION

Next: p76

Burner ignites BUT DOES NOT ESTABLISH

CHARACTERISTIC TEST FROM BURNER IGNITION

Next: p2132

Burner igniteS, SPARKING CEASES but flame baffles out or dies away

CHARACTERISTIC TEST FROM BURNER IGNITION

Next: p80

11/08/2023 07:15:57 2304_1_50_1 29/11/2023 12:56:56

11/08/2023 07:25:32

Next: End

RESISTANCE GAS VALVE AND HARNESS

UNPLUG THE 6 WAY CONNECTOR FROM THE PCB

Next: p1028, f1042

RESISTANCE GAS VALVE

DISCONNECT GAS VALVE ELECTRICAL CONNECTOR PLUG FROM GAS VALVE

Next: !p2003, !f2002

HARNESS FAN (SHORT)

REMOVE THE FAN HARNE

Next: !p2000, !f2001

RESISTANCE FAN AND HARNESS

DISCONNECT FAN CONNECTOR (RED AND BLUE WIRES) FROM THE PCB

Next: p2471, f1152

HARNESS FAN (SHORT)

REMOVE THE FAN HARNE

Next: !p1236, !f1237

FURTHER INVESTIGATION FUSE

Next: !p1205, !f1208

PCB CONTROL JUMPERS

HINGE DOWN THE PCB HOUSING

Next: !p1408, !f1409

EMC FILTER CONTINUITY

THE BOILER MAY NOT H

Next: !p1411, !f1412

RESISTANCE THERMISTOR FLOW

DISCONNECT ONE OF THE RED WIRES FROM THE THERMISTOR

Next: !p1432, !f1433

PCB CONTROL JUMPERS

HINGE DOWN THE PCB HOUSING

Next: p1436, !f1437

MECHANICAL FAN AND HALL SENSOR OPERATION

REMOVE THE WING NUTS

Next: p1440, !f1441

RESISTANCE THERMISTOR FLOW

DISCONNECT ONE OF THE RED WIRES FROM THE THERMISTOR

Next: !p1457, !f1458

PCB CONTROL JUMPERS

HINGE DOWN THE PCB HOUSING

Next: p1802, !f1462

RESISTANCE LOW VOLTAGE HARNESS RESISTORS

HINGE DOWN THE PCB HOUSING
REMOVE 8 WAY CONNECTOR FROM PCB

Next: !p1500, !f1501

SPARK ELECTRODE ASSEMBLY

REMOVE THE SPARK ELECTRODE ASSEMBLY

Next: p2627, !f182

FURTHER INVESTIGATION PCB

Next: !p1781, !f1782

GAS VALVE RESISTANCE

DISCONNECT GAS VALVE ELECTRICAL CONNECTOR PLUG FROM GAS VALVE

Next: !p1785, !f1786

SPARK ELECTRODE ASSEMBLY

REMOVE THE SPARK ELECTRODE ASSEMBLY

Next: p1916, !f1917

SPARK ELECTRODE ASSEMBLY

REMOVE THE SPARK ELECTRODE ASSEMBLY

Next: p2075, !f2076

RESISTANCE THERMISTOR TO EARTH

DISCONNECT ONE OF THE RED WIRES FROM THE THERMISTOR

Next: !p2175, !f2176

RESISTANCE FAN THERMOSTAT TO EARTH

DISCONNECT ONE OF THE BLACK WIRES FROM THE FAN THERMOSTAT LOCATED ADJACENT TO THE FAN

Next: p2179, !f2180

PCB VOLTAGE IN

Next: p2194, f2195

MAINS POWER SUPPLY AT BOILER

Next: p2196, f2460

FURTHER INVESTIGATION FUSE

Next: !p2204, !f2205

VOLTAGE SWITCHED LIVE

GAIN ACCESS TO INCOMING MAINS TERMINAL STRIP AS NECESSARY

Next: p2396, !f2423

OBSERVATION PUMP RUNNING

LOCATE THE PUMP ON THE SYSTEM

Next: p2399, f2400

VOLTAGE AT PUMP

LOCATE THE EXTERNAL PUMP
REMOVE THE COVER FROM THE PUMP

Next: !p2401, !f2402

RESET LOCKOUT

Next: !p2409, f2424

RESISTANCE FAN AND HARNESS

DISCONNECT FAN CONNECTOR (RED AND BLUE WIRES) FROM THE PCB

Next: !p2417, !f2418

THERMOSTATS

DISCONNECT THE SIX WAY CONNECTOR FROM THE TOP OF THE PCB HOUSING

Next: p2425, f2426

THERMOSTAT - SAFETY

DISCONNECT ONE OF TH

Next: p2427, !f2428

RESISTANCE THERMISTOR FLOW

DISCONNECT ONE OF THE RED WIRES FROM THE THERMISTOR

Next: !p2433, !f2434

OBSERVATION PUMP RUNNING

LOCATE THE PUMP ON THE SYSTEM

Next: p2440, f2441

VOLTAGE AT PUMP

LOCATE THE EXTERNAL PUMP
REMOVE THE COVER FROM THE PUMP

Next: !p2442, !f2443

RESISTANCE MAINS FUSE

REMOVE FUSE FROM FUSED SPUR

Next: !p2465, f2462

FURTHER INVESTIGATION FUSE (MAINS)

THE INFORMATION PROV

Next: !p2466, !f2467

RESISTANCE GAS VALVE

DISCONNECT GAS VALVE ELECTRICAL CONNECTOR PLUG FROM GAS VALVE

Next: !p2474, !f2475

FAN RUNS

Next: p2499, f2500

HARNESS FAN

REMOVE THE FAN HARNE

Next: p2501, !f2502

RESISTANCE FAN AND HARNESS

DISCONNECT FAN CONNECTOR (RED AND BLUE WIRES) FROM THE PCB

Next: !p2507, !f2508

GAS INLET PRESSURE - INTERMITTENT

ATTACH PRESSURE GAUGE TO THE INLET PRESSURE TEST POINT

Next: p2521, !f2522

OBSERVATION TYPE OF ELECTRODE FITTED

PLEASE SELECT WHICH TYPE OF ELECTRODE IS FITTED TO THE APPLIANCE.

Next: p2525, ?2526, ?2528

VOLTAGE PCB FAN SENSOR (WHITE LABEL)

DISCONNECT FAN CONNECTOR AT THE FAN AND MAKE SAFE

Next: p2597, !f2598

VOLTAGE PCB FAN SENSOR (WHITE LABEL)

DISCONNECT FAN CONNECTOR AT THE FAN AND MAKE SAFE

Next: p2608, !f2609

VOLTAGE PCB FAN SENSOR (WHITE LABEL)

DISCONNECT FAN CONNECTOR AT THE FAN AND MAKE SAFE

Next: p2619, !f2620

RESISTANCE GAS VALVE

DISCONNECT GAS VALVE ELECTRICAL CONNECTOR PLUG FROM GAS VALVE

Next: !p2645, !f2646

RESISTANCE THERMISTOR FLOW AND HARNESS

REMOVE 8 WAY CONNECTOR FROM PCB

Next: !p2662, !f2663

GAS VALVE RESISTANCE

DISCONNECT GAS VALVE ELECTRICAL CONNECTOR PLUG FROM GAS VALVE

Next: !p2666, !f2667

GAS VALVE VOLTAGE

RESET LOCKOUT AS NECESSARY

Next: !p2670, !f2671

RESISTANCE FAN AND HARNESS

DISCONNECT FAN CONNECTOR (RED AND BLUE WIRES) FROM THE PCB

Next: !p2674, !f2675

MAINS POWER TO BOILER

Next: p597, !f1397

FLOW AND RETURN REVERSED

Next: p1563, !f611

MAINS SUPPLY INTO BOILER

Next: !p614, !f623

MAINS POWER SUPPLY LOW

Next: p640, !f2479

RESISTANCE THERMISTOR FLOW AND HARNESS

REMOVE 8 WAY CONNECTOR FROM PCB

Next: !p858, f859

RESISTANCE THERMISTOR FLOW

DISCONNECT ONE OF THE RED WIRES FROM THE THERMISTOR

Next: !p860, !f884

OVERHEAT

DISCONNECT THE SIX WAY CONNECTOR FROM THE TOP OF THE PCB HOUSING

Next: p1300, f893

THERMOSTAT - SAFETY

DISCONNECT ONE OF TH

Next: p894, !f895

THERMOSTAT - SAFETY

DISCONNECT ONE OF TH

Next: p911, !f912

RESISTANCE THERMISTOR FLOW

DISCONNECT ONE OF THE RED WIRES FROM THE THERMISTOR

Next: !p920, !f921

RESISTANCE FAN AND HARNESS

DISCONNECT FAN CONNECTOR (RED AND BLUE WIRES) FROM THE PCB

Next: p2171, f1043

MEASUREMENT BOILER SEALS INTEGRITY

Next: p850, !f1296

PUMP LIMPET TEST

Next: p147, !f148

THERMISTOR FLOW TEMPERATURE OVERHEAT

DISCONNECT THE LOW VOLTAGE MOLEX CONNECTOR FROM THE PCB

Next: !p1298, !f1299

THERMISTOR FLOW TEMPERATURE OVERHEAT

DISCONNECT THE LOW VOLTAGE MOLEX CONNECTOR FROM THE PCB

Next: !p1301, !f1302

PUMP LIMPET TEST

Next: p1090, !f1369

RESISTANCE THERMISTOR FLOW

DISCONNECT ONE OF THE RED WIRES FROM THE THERMISTOR

Next: p1404, !f1405

GAS RATE OUTPUT

Next: !p1406, f1407

PUMP LIMPET TEST

Next: p1428, !f1429

RESISTANCE THERMISTOR FLOW AND HARNESS

REMOVE 8 WAY CONNECTOR FROM PCB

Next: p1430, f1431

GAS RATE OUTPUT

Next: p2468, f1435

FAN PRESSURE

ENSURE GAS IS TURNED OFF AT SERVICE VALVE
ATTACH PRESSURE GAUGE TO BURNER PRESSURE TEST POINT

Next: p1438, f1439

GAS WORKING PRESSURE

ATTACH PRESSURE GAUGE TO THE INLET PRESSURE TEST POINT

Next: p1444, !f1445

FAN HARNESS CONTINUITY

REMOVE THE CONNECTORS FROM THE FAN AND THE PCB

Next: !p1442, !f1443

INJECTOR PIPE

Next: p1446, !f1447

VENTURI AIR INTAKE

REMOVE THE FAN AND INSPECT THE VENTURI

Next: !p1448, !f1449

RESISTANCE THERMISTOR FLOW AND HARNESS

REMOVE 8 WAY CONNECTOR FROM PCB

Next: p1670, f1456

GAS RATE

Next: !p1459, f1460

RESISTANCE THERMISTOR FLOW AND HARNESS

REMOVE 8 WAY CONNECTOR FROM PCB

Next: p149, f919

EXTERNAL BYPASS

Next: !p151, !f152

RESISTANCE FLOW SWITCH HARNESS

DISCONNECT THE FLOW

Next: p1564, f2439

RESISTANCE HARNESS FLOW SWITCH

DISCONNECT FLOW SWITCH PLUG AT THE PCB
DISCONNECT THE FLOW SWITCH AT THE INLINE CONNECTOR

Next: !p1625, !f1595

RESET LOCKOUT

Next: !p1629, !f1630

PUMP LIMPET TEST

Next: p1823, !f1694

OBSERVATION TYPE OF ELECTRODE FITTED

PLEASE SELECT WHICH TYPE OF ELECTRODE IS FITTED TO THE APPLIANCE.

Next: p1726, ?1727, ?1729

RESISTANCE SPARK ELECTRODE (NO WIRES)

DISCONNECT THE LEADS

Next: p1737, !f1738

RESISTANCE SPARK ELECTRODE (3 SHORT)

DISCONNECT THE LEADS

Next: p1733, !f1734

RESISTANCE SPARK ELECTRODE (1 SHORT 2 LONG)

CAREFULLY REMOVE THE ELECTRODE ASSEMBLY FROM THE COMBUSTION BOX DOOR

Next: !p1731, !f1732

RESISTANCE HARNESS SPARK ELECTRODE (3 SHORT)

Next: !p1735, !f1742

RESISTANCE HARNESS SPARK ELECTRODE (NO WIRES)

Next: !p1739, !f1741

GAS VALVE VOLTAGE

RESET LOCKOUT AS NECESSARY

Next: p1779, f1780

GAS VALVE AND HARNESS RESISTANCE

UNPLUG THE 6 WAY CONNECTOR FROM THE PCB

Next: p1783, f1784

INJECTOR PIPE

Next: !p1787, !f1788

CASE PRESSURE PIPE

Next: p1778, !f1801

RESISTANCE LOW VOLTAGE HARNESS RESISTORS

HINGE DOWN THE PCB HOUSING
REMOVE 8 WAY CONNECTOR FROM PCB

Next: p1982, !f1822

GAS WORKING PRESSURE

ATTACH PRESSURE GAUGE TO THE INLET PRESSURE TEST POINT

Next: p1455, !f1850

CASE PRESSURE PIPE

Next: p1913, !f1976

OBSERVATION SPARKING AT ELECTRODE

REMOVE THE TOP TWO S

Next: p1914, f1915

INSPECTION BURNER ASSEMBLY

Next: p1971, !f1935

OBSERVATION TYPE OF ELECTRODE FITTED

PLEASE SELECT WHICH TYPE OF ELECTRODE IS FITTED TO THE APPLIANCE.

Next: p1918, ?1920, ?1922

RESISTANCE SPARK ELECTRODE (NO WIRES)

DISCONNECT THE LEADS

Next: p1930, !f1931

RESISTANCE SPARK ELECTRODE (3 SHORT)

DISCONNECT THE LEADS

Next: p1926, !f1927

RESISTANCE SPARK ELECTRODE (1 SHORT 2 LONG)

CAREFULLY REMOVE THE ELECTRODE ASSEMBLY FROM THE COMBUSTION BOX DOOR

Next: !p1924, !f1925

RESISTANCE HARNESS SPARK ELECTRODE (3 SHORT)

Next: !p1928, !f1929

RESISTANCE HARNESS SPARK ELECTRODE (NO WIRES)

Next: !p1932, !f1933

GAS WORKING PRESSURE

ATTACH PRESSURE GAUGE TO THE INLET PRESSURE TEST POINT

Next: p2033, !f1969

INJECTOR PIPE

Next: p1972, !f1973

OBSERVATION PCB IGNITION JUMPER

HINGE DOWN THE PCB HOUSING
REMOVE BLUE JUMPER CN11 IF PRESENT
GAS ON

Next: !p1974, !f1975

INSPECTION FLUE

Next: p1984, !f1983

VENTURI AIR INTAKE

REMOVE THE FAN AND INSPECT THE VENTURI

Next: p1986, !f1985

INJECTOR PIPE

Next: p1988, !f1987

INSPECTION FAN SCROLL

UNDO THE TWO WING NUTS AND LOWER THE FAN ASSEMBLY

Next: p1990, !f1989

INSPECTION BURNER ASSEMBLY

Next: p1995, !f1992

HEAT EXCHANGER FLUE WAYS

REMOVE INNER PANEL

Next: p2494, !f1997

INSPECTION CONDENSATE PIPE

Next: p1789, !f2032

INSPECTION CONDENSATE PIPE

Next: p1912, !f2063

INSPECTION CONDENSATE PIPE

Next: p2068, !f2067

FAN ASSEMBLY AIR INTAKE

Next: p2069, !f2070

CASE PRESSURE PIPE

Next: p2071, !f2072

OBSERVATION SPARKING AT ELECTRODE

REMOVE THE TOP TWO S

Next: p2073, f2074

INSPECTION BURNER ASSEMBLY

Next: p2094, !f2093

OBSERVATION TYPE OF ELECTRODE FITTED

PLEASE SELECT WHICH TYPE OF ELECTRODE IS FITTED TO THE APPLIANCE.

Next: p2077, ?2079, ?2081

RESISTANCE SPARK ELECTRODE (NO WIRES)

DISCONNECT THE LEADS

Next: p2089, !f2090

RESISTANCE SPARK ELECTRODE (3 SHORT)

DISCONNECT THE LEADS

Next: p2085, !f2086

RESISTANCE SPARK ELECTRODE (1 SHORT 2 LONG)

CAREFULLY REMOVE THE ELECTRODE ASSEMBLY FROM THE COMBUSTION BOX DOOR

Next: !p2083, !f2084

RESISTANCE HARNESS SPARK ELECTRODE (3 SHORT)

Next: !p2087, !f2088

RESISTANCE HARNESS SPARK ELECTRODE (NO WIRES)

Next: !p2091, !f2092

FLUE

Next: !p2095, !f2096

INSPECTION CONDENSATE PIPE

Next: p2099, !f2098

CASE PRESSURE PIPE

Next: p2100, !f2101

FAN ASSEMBLY AIR INTAKE

Next: p2110, !f2102

MEASUREMENT BOILER SEALS INTEGRITY

Next: p2487, !f2112

DISCONNECT LEADS FROM CONDENSATE PUMP AND TRAP

Next: p2147, ?2134, ?2136

RESISTANCE CHECKS FLAME SENSE LEAD

HINGE DOWN THE PCB H

Next: !p2144, !f2145

RESISTANCE CONDENSE LEVEL SWITCH

DISCONNECT THE INLINE CONNECTOR TO THE CONDENSATE PUMP ASSEMBLY

Next: p2138, !f2139

VOLTAGE TO CONDENSE PUMP

GAIN ACCESS TO INCOMING MAINS TERMINAL STRIP AS NECESSARY

Next: p2140, !f2141

INSPECTION CONDENSATE PIPE

Next: !p2142, !f2143

GAS WORKING PRESSURE

ATTACH PRESSURE GAUGE TO THE INLET PRESSURE TEST POINT

Next: p2149, !f2148

INSPECTION DETECTION ELECTRODE

CAREFULLY REMOVE THE ELECTRODE ASSEMBLY FROM
THE COMBUSTION BOX DOOR

Next: p2162, !f2151

INSPECTION FLUE

Next: p2163, !f2164

CASE PRESSURE PIPE

Next: p2480, !f2166

RESISTANCE CONDENSATE PUMP MOTOR

REMOVE THE 7 WAY CONNECTOR FROM THE PCB
(ORANGE, BLUE AND BROWN WIRES)

Next: p2172, !f2183

RESISTANCE THERMISTOR AND HARNESS TO EARTH

REMOVE 8 WAY CONNECTOR FROM PCB

Next: p2173, f2174

RESISTANCE SAFETY CIRCUIT TO EARTH

DISCONNECT THE SIX WAY CONNECTOR FROM THE TOP OF THE PCB HOUSING

Next: !p2177, f2178

RESISTANCE OVERHEAT THERMOSTAT TO EARTH

DISCONNECT ONE OF TH

Next: !p2181, !f2182

FUSE T3.15A

REMOVE FUSE FROM THE PCB HOUSING

Next: !p2210, f2203

EMC FILTER CONTINUITY

THE BOILER MAY NOT H

Next: !p2200, !f2201

RESISTANCE FLOW SWITCH HARNESS

DISCONNECT THE FLOW

Next: p2397, f2398

RESISTANCE HARNESS FLOW SWITCH

DISCONNECT FLOW SWITCH PLUG AT THE PCB
DISCONNECT THE FLOW SWITCH AT THE INLINE CONNECTOR

Next: p2405, !f2406

PUMP LIMPET TEST

Next: !p2403, !f2404

LOCKOUT CHECK

Next: p2407, f2408

HARNESS FAN

REMOVE THE FAN HARNE

Next: p2411, !f2412

INSPECTION FAN FREE

Next: p2413, !f2414

OBSERVATION FAN

DISCONNECT FAN CONNECTOR ILLUSTRATED AND PLACE IN A SAFE POSITION

Next: p2594, f2416

RESISTANCE THERMISTOR FLOW AND HARNESS

REMOVE 8 WAY CONNECTOR FROM PCB

Next: p2431, f2432

THERMOSTAT - FAN

DISCONNECT ONE OF THE BLACK WIRES FROM THE FAN THERMOSTAT LOCATED ADJACENT TO THE FAN

Next: !p2429, !f2430

RESISTANCE LOW VOLTAGE HARNESS RESISTORS

HINGE DOWN THE PCB HOUSING
REMOVE 8 WAY CONNECTOR FROM PCB

Next: p2435, !f2436

INSPECTION RESET BUTTON

Next: !p2437, !f2438

PUMP LIMPET TEST

Next: !p2444, !f2445

INSPECTION CONDENSATE PIPE

Next: p2452, !f2453

RESISTANCE CONDENSE LEVEL SWITCH

DISCONNECT THE INLINE CONNECTOR TO THE CONDENSATE PUMP ASSEMBLY

Next: p2454, !f2455

VOLTAGE TO CONDENSE PUMP

GAIN ACCESS TO INCOMING MAINS TERMINAL STRIP AS NECESSARY

Next: p2456, !f2457

INSPECTION CONDENSATE PIPE

Next: !p2458, !f2459

VENTURI

REMOVE THE FAN, THERE IS NO NEED TO TAKE THE VENTURI
OFF THE FAN

Next: !p2469, !f2470

RESISTANCE GAS VALVE AND HARNESS

UNPLUG THE 6 WAY CONNECTOR FROM THE PCB

Next: p2472, f2473

RESISTANCE CONDENSATE PUMP MOTOR

REMOVE THE 7 WAY CONNECTOR FROM THE PCB
(ORANGE, BLUE AND BROWN WIRES)

Next: !p2476, !f2477

INSPECTION BURNER ASSEMBLY

Next: p2481, !f2482

HEAT EXCHANGER FLUE WAYS

REMOVE INNER PANEL

Next: p2483, !f2484

INSPECTION HEAT EXCHANGER REAR FLUE WAYS

REMOVE INNER PANEL,

Next: !p2485, !f2486

INSPECTION FLUE

Next: p2488, !f2489

HEAT EXCHANGER FLUE WAYS

REMOVE INNER PANEL

Next: p2490, !f2491

INSPECTION HEAT EXCHANGER REAR FLUE WAYS

REMOVE INNER PANEL,

Next: !p2492, !f2493

INSPECTION HEAT EXCHANGER REAR FLUE WAYS

REMOVE INNER PANEL,

Next: !p2495, !f2496

HARNESS FAN (LV)

REMOVE THE FAN HARNE

Next: p2605, !f2514

INSPECTION FAN FREE

Next: p2503, !f2504

OBSERVATION FAN

DISCONNECT FAN CONNECTOR ILLUSTRATED AND PLACE IN A SAFE POSITION

Next: p2616, f2506

OBSERVATION SPARKING AT ELECTRODE - INTERMITTENT

REMOVE THE TOP TWO S

Next: p2523, f2524

RESISTANCE RECTIFICATION HARNESS - INTERMITTENT

HINGE DOWN THE PCB H

Next: p2540, !f2541

RESISTANCE SPARK ELECTRODE (NO WIRES)

DISCONNECT THE LEADS

Next: p2536, !f2537

RESISTANCE SPARK ELECTRODE (3 SHORT)

DISCONNECT THE LEADS

Next: p2532, !f2533

RESISTANCE SPARK ELECTRODE (1 SHORT 2 LONG)

CAREFULLY REMOVE THE ELECTRODE ASSEMBLY FROM THE COMBUSTION BOX DOOR

Next: !p2530, !f2531

RESISTANCE HARNESS SPARK ELECTRODE (3 SHORT)

Next: !p2534, !f2535

RESISTANCE HARNESS SPARK ELECTRODE (NO WIRES)

Next: !p2538, !f2539

OBSERVATION TYPE OF ELECTRODE FITTED

PLEASE SELECT WHICH TYPE OF ELECTRODE IS FITTED TO THE APPLIANCE.

Next: p2542, ?2544, ?2546

INSPECTION ELECTRODE (NO WIRES) - INTERMITTENT IGNITION

DISCONNECT THE LEADS FROM THE ELECTRODES AND CAREFULLY REMOVE THEM FROM THE COMBUSTION BOX DOOR.

Next: p2578, !f2579

INSPECTION ELECTRODE (3 SHORT WIRES) - INTERMITTENT IGNITION

DISCONNECT THE LEADS

Next: p2562, !f2563

INSPECTION ELECTRODE (1 SHORT WIRE AND 2 LONG WIRES) - INTERMITTENT IGNITION

CAREFULLY REMOVE THE ELECTRODE ASSEMBLY FROM
THE COMBUSTION BOX DOOR

Next: p2548, !f2549

INSPECTION CONDENSATE PIPE

Next: p2550, !f2551

CASE PRESSURE PIPE

Next: p2552, !f2553

INSPECTION FLUE

Next: p2554, !f2555

VENTURI AIR INTAKE - INTERMITTENT

REMOVE THE FAN AND INSPECT THE VENTURI

Next: p2556, !f2557

INJECTOR PIPE

Next: p2558, !f2559

INSPECTION BURNER ASSEMBLY

Next: p2653, !f2561

RESISTANCE HARNESS SPARK ELECTRODE (3 SHORT) - INTERMITTENT

Next: p2564, !f2565

INSPECTION CONDENSATE PIPE

Next: p2566, !f2567

CASE PRESSURE PIPE

Next: p2568, !f2569

INSPECTION FLUE

Next: p2570, !f2571

VENTURI AIR INTAKE - INTERMITTENT

REMOVE THE FAN AND INSPECT THE VENTURI

Next: p2572, !f2573

INJECTOR PIPE

Next: p2574, !f2575

INSPECTION BURNER ASSEMBLY

Next: p2650, !f2577

RESISTANCE HARNESS SPARK ELECTRODE (NO WIRES) - INTERMITTENT

Next: p2580, !f2581

INSPECTION CONDENSATE PIPE

Next: p2582, !f2583

CASE PRESSURE PIPE

Next: p2584, !f2585

INSPECTION FLUE

Next: p2586, !f2587

VENTURI AIR INTAKE - INTERMITTENT

REMOVE THE FAN AND INSPECT THE VENTURI

Next: p2588, !f2589

INJECTOR PIPE

Next: p2590, !f2591

INSPECTION BURNER ASSEMBLY

Next: p2647, !f2593

OBSERVATION WHICH PCB VERSION IS FITTED

INSPECT THE BACK OF THE PCB.
WHAT COLOUR IS THE LABEL?

Next: p2595, f2596

VOLTAGE PCB FAN SENSOR

DISCONNECT FAN CONNECTOR AT THE FAN AND MAKE SAFE

Next: p2601, !f2602

RESISTANCE PCB NEUTRAL FOR FAN

POSITION PCB AS ILLUSTRATED IN IMAGE
DISCONNECT FAN CONNECTOR AT THE FAN AND MAKE SAFE

Next: !p2599, !f2600

RESISTANCE PCB NEUTRAL FOR FAN

POSITION PCB AS ILLUSTRATED IN IMAGE
DISCONNECT FAN CONNECTOR AT THE FAN AND MAKE SAFE

Next: !p2603, !f2604

OBSERVATION WHICH PCB VERSION IS FITTED

INSPECT THE BACK OF THE PCB.
WHAT COLOUR IS THE LABEL?

Next: p2606, f2607

VOLTAGE PCB FAN SENSOR

DISCONNECT FAN CONNECTOR AT THE FAN AND MAKE SAFE

Next: p2612, !f2613

VOLTAGE PCB FAN SENSOR FAN RUNNING (WHITE LABEL)

RECONNECT FAN CONNECTOR AT THE FAN IF YOU HAVE NOT ALREADY DONE SO

Next: !p2610, !f2611

VOLTAGE PCB FAN SENSOR (FAN RUNNING)

RECONNECT FAN CONNECTOR AT THE FAN IF YOU HAVE NOT ALREADY DONE SO

Next: !p2614, !f2615

OBSERVATION WHICH PCB VERSION IS FITTED

INSPECT THE BACK OF THE PCB.
WHAT COLOUR IS THE LABEL?

Next: p2617, f2618

VOLTAGE PCB FAN SENSOR

DISCONNECT FAN CONNECTOR AT THE FAN AND MAKE SAFE

Next: p2623, !f2624

RESISTANCE PCB NEUTRAL FOR FAN

POSITION PCB AS ILLUSTRATED IN IMAGE
DISCONNECT FAN CONNECTOR AT THE FAN AND MAKE SAFE

Next: !p2621, !f2622

RESISTANCE PCB NEUTRAL FOR FAN

POSITION PCB AS ILLUSTRATED IN IMAGE
DISCONNECT FAN CONNECTOR AT THE FAN AND MAKE SAFE

Next: !p2625, !f2626

RESISTANCE GAS VALVE AND HARNESS

UNPLUG THE 6 WAY CONNECTOR FROM THE PCB

Next: p1725, f2644

INSPECTION HEAT EXCHANGER REAR FLUE WAYS

REMOVE INNER PANEL,

Next: !p2648, !f2649

INSPECTION HEAT EXCHANGER REAR FLUE WAYS

REMOVE INNER PANEL,

Next: !p2651, !f2652

INSPECTION HEAT EXCHANGER REAR FLUE WAYS

REMOVE INNER PANEL,

Next: !p2654, !f2655

PCB - SUPPLY VOLTAGE

Next: p599, f1410

FUSE T3.15A

REMOVE FUSE FROM THE PCB HOUSING

Next: !p1201, f1202

PCB - SUPPLY VOLTAGE

Next: p1628, !f646

GAS VALVE OPERATION

ATTACH PRESSURE GAUGE TO THE INLET PRESSURE TEST POINT

Next: p2066, ?1774, ?1776

GAS WORKING PRESSURE

ATTACH PRESSURE GAUGE TO THE INLET PRESSURE TEST POINT

Next: p2097, !f82

RESET BOILER

ENSURE BOILER IS COOL

Next: p1349, f891

BOILER MODULATION

Next: p898, f857

THERMOSTAT - FAN

DISCONNECT ONE OF THE BLACK WIRES FROM THE FAN THERMOSTAT LOCATED ADJACENT TO THE FAN

Next: !p896, !f897

DOES OVERHEAT OCCUR

Next: p908, !f900

OVERHEAT OCCURS

DISCONNECT THE SIX WAY CONNECTOR FROM THE TOP OF THE PCB HOUSING

Next: p1297, f910

THERMOSTAT - FAN

DISCONNECT ONE OF THE BLACK WIRES FROM THE FAN THERMOSTAT LOCATED ADJACENT TO THE FAN

Next: !p913, !f914

System Information

  • Total Tests: 560
  • Sequence Logic: Decoded from encrypted .seq file
  • Navigation: Dynamic based on pass/fail results
  • Source: 4731307 GW SWIFTFLOW 100 SIT Control