XSol Diagnostic System

Welcome to the XSol Diagnostic System

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

Start Diagnostic Sequence

or choose a specific test below:

GREENSTAR I SYSTEM (NO ON/OFF SWITCH, NO DHW KNOB, HAS TRANSFORMER)

GLOBALLY REPLACED

Next: &1, *

APPLIANCE APPEARS SATISFACTORY

Next: nff

WORCESTER GREENSTAR I SYSTEM

CASE REMOVAL<

Next: &470, !f2

PUMP OVERRUN

CH TEMPERATURE CONTROL SET TO MAX

Next: &185, !f184

SYPHON OPERATION

Next: &nff, !f186

OBSERVATION BURNER IGNITION & ESTABLISH

ENSURE PRIMARY HEAT EXCHANGER IS COOL

Next: &1826, ?318, ?322, ?986, ?1509, ?2996

ENHANCED FAULT CODES

Next: &1052, !f467

TYPE OF DIAGNOSTIC PROCEDURE

PLEASE SELECT FROM O

Next: &2286, !f471

MAXIMUM OUTPUT MODE

INSTRUCTIONS TO S

Next: &nff, !f701

FURTHER INVESTIGATION OVERHEAT

NOT USED

Next: &nff, f911

POWER UP

Next: &2663, f1053

FURTHER INVESTIGATION FUSE BLOWN

NOT USED

Next: &nff, f2792

FAN PRESSURE TEST

ATTACH PRESSURE GAUGE TO FAN PRESSURE TEST POINT

Next: &1833, f2981

INLET PRESSURE

ATTACH PRESSURE GAUGE TO INLET PRESSURE TEST POINT ON GAS VALVE

Next: &1835, !f1834

COMBUSTION ANALYSIS MAX AND MIN

Next: &2702, ?1836, ?1838

OPERATIONAL SEQUENCE

NOT USED

Next: &466, !f2288

INTERNAL FAULT

NOT USED

Next: &nff, f2335

VOLATILE LOCK OUT

NOT USED

Next: &nff, f2339

BURNER SEAL CHECK FOR OVERHEAT

OUTSIDE MODEL

Next: &nff, f2501

OBSERVATION PUMP RUNS

Next: &317, f2664

OPERATION CH

CH TEMPERATURE CONTROL SET TO MAX

Next: &2741, ?2703, ?2705, ?2707, ?2709

OPERATION DHW

CH TEMPERATURE CONTROL SET TO MAX

Next: &183, ?2742, ?2744

INFORMATION FAN PCB REMOVAL

Next: &nff, !f3108

INFORMATION FAN DEMAND VOLTAGE

THE PWM OR (DEMAND/S

Next: &nff, !f3205

BURNER BAFFLES OUT

FLUE

Next: End

BLOWN STAND BY MODE AT POWER UP

FUSE (FUSED SPUR)

Next: End

LED AT POWER UP

PCB

Next: End

FAN DOES NOT RUN

Z DIRECTION

Next: End

BLOWN STANDBY MODE

FUSE - MAINS

Next: End

BLOWN STANDBY MODE

FUSE

Next: End

FURTHER IN VESTIGATION F2

Z DIRECTION

Next: End

BURNER IGNITION

TRANSFORMER

Next: End

OVERHEAT

DIRECTION CHOICE OR CONTINUE

Next: End

OVERHEAT

SENSOR - CONTROL

Next: End

PRIMARY TEST

INLET PRESSURE

Next: End

PUMP OVERRUN

PCB

Next: End

SYPHON

SIPHON ASSEMBLY

Next: End

OVERHEAT

LIMITER 120°C - TEMPERATURE

Next: End

ELECTRICAL SAFETY

ELECTRICAL SAFETY CHECKS

Next: End

BAFFLES OUT

TUBE GAS SUPPLY

Next: End

PUMP - DHW COOL RADS COOLPUMP RUNNING PRE TEST OVERHEAT

PCB

Next: End

DHW COOL RADS COOLPUMP RUNNING PRE TEST OVERHEAT

CABLE - PUMP

Next: End

OPERATIONAL SEQUENCE

DIRECTION CHOICE OR CONTINUE

Next: End

INTERNAL FAULT

Z DIRECTION

Next: End

COMBUSTION INCORRECT

TUBE GAS SUPPLY

Next: End

DROPS OUT MIN MODE

TUBE GAS SUPPLY

Next: End

BURNER SEAL FOR OVERHEAT

FLUE / BURNER SEALS

Next: End

BURNER DOES NOT ESTABLISH

SIPHON ASSEMBLY

Next: End

FAN DOES NOT RUNFAULT CODE

CODE PLUG

Next: End

FAN DOES NOT RUN 1FAULT CODE

SENSOR - CONTROL

Next: End

FAN DOES NOT RUN

CODE PLUG

Next: End

OBSERVATION PUMP RUNS - NO VOLTAGE TO PUMP

PCB

Next: End

OBSERVATION PUMP RUNS

CABLE - PUMP

Next: End

FAN DOES NOT RUN

SENSOR - CONTROL

Next: End

DHW COOL

SYSTEM PRESSURE

Next: End

BOILER AND RADS ONLY GET WARM

PUMP

Next: End

BOILER AND RADS ONLY GET WARM

SENSOR - CONTROL

Next: End

EXPANSION VESSEL

EXPANSION VESSEL

Next: End

RADS DO NOT HEAT

SYSTEM PRESSURE

Next: End

RADS DO NOT HEAT

ISOLATION VALVES

Next: End

RADS DO NOT HEAT

PUMP

Next: End

RADS COLD

VALVE - BYPASS

Next: End

CH NOISY

SYSTEM PRESSURE

Next: End

CH NOISY

PUMP

Next: End

CH NOISY

SENSOR - CONTROL

Next: End

OVERHEAT INVESTIGATION

SYSTEM RESTRICTION OR BLOCKAGE

Next: End

FURTHER INVESTIGATION

GAS VALVE

Next: End

FURTHER INVESTIGATION FUSE F1 FURTHER INVESTIGATION

PUMP

Next: End

FURTHER INVESTIGATION FURTHER INVESTIGATION

TRANSFORMER

Next: End

OBSERVATION PUMP RUNS - NO INTERNAL CLOCK - NO VOLTAGE TO EXT CONTROLS

PCB

Next: End

FAN RUNS OVERHEAT 1

LIMITER 120°C - TEMPERATURE

Next: End

FLUE OVERHEAT

BURNER

Next: End

FLUE OVERHEAT

PRIMARY HEAT EXCHANGER

Next: End

DOES NOT ESTABLISH

TUBE GAS SUPPLY

Next: End

BURNER IGNITES BUT NOT ESTABLISH

FLUE

Next: End

DOES NOT ESTABLISH

BURNER

Next: End

DOES NOT ESTABLISH - FLAME SENSE SHORTING TO EARTH

HARNESS - MAINS

Next: End

FLAME SENSE BURNER IGNITES

HARNESS - MAINS

Next: End

BURNER IGNITES

ELECTRODE

Next: End

DOES NOT ESTABLISH 2

BURNER

Next: End

BURNER BAFFLES OUT 1

FLUE

Next: End

BAFFLES OUT 2

TUBE GAS SUPPLY

Next: End

BURNER BAFFLES OUT

BURNER

Next: End

FAN RUNS

LIMITER 120°C - TEMPERATURE

Next: End

BURNER IGNITION

LIMITER - TEMPERATURE

Next: End

BURNER IGNITES

SIPHON ASSEMBLY

Next: End

BURNER IGNITES

INLET PRESSURE

Next: End

BURNER DOES NOT IGNITE NO DROPFAN RUNS OVERHEAT 1

LIMITER 120°C - TEMPERATURE

Next: End

BURNER DOES NOT IGNITE NO DROP

LIMITER - TEMPERATURE

Next: End

NO VOLTAGE 1

PCB AND GAS VALVE

Next: End

BURNER DOES NOT IGNITE

PCB-HARNESS (MAIN)

Next: End

BURNER DOES IGNITE FAULTY SOLENOID

GAS VALVE

Next: End

BURNER DOES NOT IGNITE

FLUE

Next: End

DOES NOT IGNITE 2

TUBE GAS SUPPLY

Next: End

BURNER DOES NOT IGNITE

BURNER

Next: End

DOES NOT IGNITE

TUBE GAS SUPPLY

Next: End

BURNER IGNITES

LEAD - IGNITION

Next: End

BURNER DOES NOT IGNITE

TUBE GAS SUPPLY

Next: End

BURNER IGNITES

ELECTRODE

Next: End

DOES NOT IGNITE PRESSURE DROPS

BURNER

Next: End

DOES NOT IGNITE

PRIMARY HEAT EXCHANGER

Next: End

FAN PRESSURE TEST

SIPHON ASSEMBLY

Next: End

FAN PRESSURE PRIMARY TEST

FLUE

Next: End

FAN PRESSURE TEST

TUBE GAS SUPPLY

Next: End

PRIMARY PRE TEST FAN PRESSURE

BURNER

Next: End

DHW BURNER IGNITION ESTABLISH - INTERMITTENT - LOW PRESSURE

SIPHON ASSEMBLY

Next: End

DHW BURNER IGNITION ESTABLISH - INTERMITTENT

FLUE

Next: End

DHW BURNER IGNITION ESTABLISH - INTERMITTENT 3

TUBE GAS SUPPLY

Next: End

DHW BURNER IGNITION ESTABLISH - INTERMITTENT

BURNER

Next: End

DHW BURNER IGNITION ESTABLISH - INTERMITTENT

INLET PRESSURE

Next: End

DHW BURNER IGNITION ESTABLISH - INTERMITTENT WRONG COMBUSTION

TUBE GAS SUPPLY

Next: End

DHW BURNER IGNITION ESTABLISH - INTERMITTENT WRONG COMBUSTION DROPS MINIMUM

TUBE GAS SUPPLY

Next: End

DHW BURNER IGNITION ESTABLISH - INTERMITTENT - POOR SPARK

PCB

Next: End

DHW BURNER IGNITION ESTABLISH - INTERMITTENT

SIPHON ASSEMBLY

Next: End

DHW BURNER IGNITION ESTABLISH - INTERMITTENT- HIGH RESIST

LIMITER - TEMPERATURE (CORROSION)

Next: End

DHW BURNER IGNITION ESTABLISH - INTERMITTENT 2

TUBE GAS SUPPLY

Next: End

DHW BURNER IGNITION ESTABLISH - INTERMITTENT

HARNESS - MAINS

Next: End

DHW BURNER IGNITION ESTABLISH - INTERMITTENT

LEAD - IGNITION

Next: End

DHW BURNER IGNITION ESTABLISH - INTERMITTENT

ELECTRODE

Next: End

FAN DOES NOT RUN - NEW STYLE

CABLE FAN CONNECTOR ASSEMBLY

Next: End

FAN VOLTAGE PCB - NEW STYLE FAN

PCB

Next: End

FAN RUNS - NEW STYLE

CABLE FAN CONNECTOR ASSEMBLY

Next: End

FAN RUNS

CABLE FAN CONNECTOR ASSEMBLY

Next: End

DOES NOT RUN

FAN

Next: End

FAN VOLTAGE PCB

PCB

Next: End

FAN DOES NOT RUN

CABLE FAN CONNECTOR ASSEMBLY

Next: End

FAN RUNS

FAN

Next: End

BETWEEN 125 VAC AND 135 VAC - NEW STYLE

CABLE FAN CONNECTOR ASSEMBLY

Next: End

ABOVE 135 VAC - NEW STYLE

CABLE FAN CONNECTOR ASSEMBLY

Next: End

STSLOW THEN TO TO HIGH SPEED - NEW STYLE

CABLE FAN CONNECTOR ASSEMBLY

Next: End

BETWEEN 125 VAC AND 135 VAC

CABLE FAN CONNECTOR ASSEMBLY

Next: End

ABOVE 135 VAC

CABLE FAN CONNECTOR ASSEMBLY

Next: End

SLOW THEN TO HIGH SPEED

FAN

Next: End

STSLOW THEN TO TO HIGH SPEED

CABLE FAN CONNECTOR ASSEMBLY

Next: End

BELOW 124 VAC

FAN

Next: End

INFORMATION FAN PCB REMOVAL

Z DIRECTION

Next: End

FUSE INVESTIGATION - INCOMPATIBLE

FAN

Next: End

FURTHER INVESTIGATION FUSE F1

FAN

Next: End

VOLATILE LOCKOUT BETWEEN 125 VAC AND 135 VAC - NEW STYLE

CABLE FAN CONNECTOR ASSEMBLY

Next: End

VOLATILE LOCKOUT ABOVE 135 VAC - NEW STYLE

CABLE FAN CONNECTOR ASSEMBLY

Next: End

VOLATILE LOCKOUT STSLOW THEN TO TO HIGH SPEED - NEW STYLE

CABLE FAN CONNECTOR ASSEMBLY

Next: End

VOLATILE LOCKOUT BETWEEN 125 VAC AND 135 VAC

CABLE FAN CONNECTOR ASSEMBLY

Next: End

VOLATILE LOCKOUT ABOVE 135 VAC

CABLE FAN CONNECTOR ASSEMBLY

Next: End

VOLATILE LOCKOUT SLOW THEN TO HIGH SPEED

FAN

Next: End

VOLATILE LOCKOUT STSLOW THEN TO TO HIGH SPEED

CABLE FAN CONNECTOR ASSEMBLY

Next: End

VOLATILE LOCKOUT BELOW 124 VAC

FAN

Next: End

VOLATILE LOCKOUT FAN RUNS 1 - NEW STYLE

CABLE FAN CONNECTOR ASSEMBLY

Next: End

VOLATILE LOCKOUT FAN RUNS 1 - NEW STYLE FAN

PCB

Next: End

VOLATILE LOCKOUT FAN RUNS - NEW STYLE

CABLE FAN CONNECTOR ASSEMBLY

Next: End

FAN RUNS1 FAULT CODE

CABLE FAN CONNECTOR ASSEMBLY

Next: End

FAN VOLTAGE PCB1 FAULT CODE

PCB

Next: End

FAN DOES NOT RUN1 FAULT CODE

CABLE FAN CONNECTOR ASSEMBLY

Next: End

FAN RUNS1 FAULT CODE

FAN

Next: End

DOES NOT RUN1 FAULT CODE

FAN

Next: End

240V ON ALL FAN CONNECTIONS

PCB

Next: End

240V ON ALL FAN CONNECTIONS 2

PCB

Next: End

240V ON ALL FAN CONNECTIONS 3

PCB

Next: End

240V ON ALL FAN CONNECTIONS 4

PCB

Next: End

BLANK FOR FAN DEMAND VOLTAGE INFORMATION

Z DIRECTION

Next: End

DOES NOT ESTABLISH

INLET PRESSURE

Next: End

FAULT CODES

ENHANCED FAULT CODES

Next: End

FOR TYPE DIAG PROCEDURE

DIRECTION CHOICE OR CONTINUE

Next: End

MAXIMUM OUTPUT INSTRUCTIONS

MAXIMUM OUTPUT INSTRUCTIONS

Next: End

OVERHEAT

SYSTEM PRESSURE

Next: End

OVERHEAT

PUMP

Next: End

BURNER BAFFLES OUT

SIPHON ASSEMBLY

Next: End

BURNER BAFFLES OUT

INLET PRESSURE

Next: End

BURNER BAFFLES OUT

GAS VALVE

Next: End

SUPPLY FAULT AT POWER UP

Next: End

FURTHER INVESTIGATION FUSED SPUR

Z DIRECTION

Next: End

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

Z DIRECTION

Next: End

FURTHER INVESTIGATION F1

Z DIRECTION

Next: End

FURTHER INVESTIGATION F3

Z DIRECTION

Next: End

BLOWN STANDBY MODE AT POWER UP

FUSE

Next: End

TRANSFORMER

PCB

Next: End

OVERHEAT

PCB

Next: End

OVERHEAT 2

LIMITER - TEMPERATURE

Next: End

DHW COOL RADIATORS COOLPUMP RUNNING PRE TEST OVERHEAT

PUMP

Next: End

INTERNAL FAULT

DIRECTION CHOICE OR CONTINUE

Next: End

CO2 SETTINGS INCORRECT

GAS VALVE SETTING RETEST

Next: End

DROPS OUT ON MINIMUM

GAS VALVE SETTING

Next: End

OVERHEAT OCCURED

NORMAL OPERATION

Next: End

FAN DOES NOT RUNFAULT CODE

HARNESS - MAINS

Next: End

OBSERVATION PUMP RUNS

PUMP

Next: End

FLOW SENSOR FAN RUNS 2

HARNESS - MAINS

Next: End

BOILER AND RADS ONLY GET WARM

PCB

Next: End

EXCESSIVE SYSTEM PRESSURE

HOSE - FLEXIBLE

Next: End

OPERATION CH UP TO TEMP RADS DO NOT HEAT

Next: End

CH NOISY

PCB

Next: End

CH NOISY

HEAT EXCHANGER ASSEMBLY

Next: End

CH NOISY

Next: End

OPERATION DHW DOES NOT RESPOND

Next: End

OPERATION DHW UNSATISFACTORY

Next: End

FAN DOES NOT RUN 1FAULT CODE

PCB

Next: End

GAS VALVE BURNER IGNITES 1FURTHER INVESTIGATION

HARNESS - MAINS

Next: End

FURTHER INVESTIGATION FUSE F1 FURTHER INVESTIGATION

CABLE - PUMP

Next: End

FURTHER INVESTIGATION FUSE F1 FURTHER INVESTIGATION

CABLE FAN CONNECTOR ASSEMBLY

Next: End

FURTHER INVESTIGATION FURTHER INVESTIGATION

PCB

Next: End

OBSERVATION PUMP RUNS - NO INTERNAL CLOCK - IGNORING EXT DEMAND

PCB

Next: End

OBSERVATION PUMP RUNS - INTERNAL CLOCK

Next: End

GAS VALVE OVERHEAT 1

PCB

Next: End

DOES NOT IGNITE2

LIMITER - TEMPERATURE (CORROSION)

Next: End

APS/FLUE/OH OVERHEAT 1

HARNESS - MAINS

Next: End

BURNER IGNITION OVERHEAT 1

LIMITER - TEMPERATURE

Next: End

BURNER DOES NOT IGNITE

MEMBRANE

Next: End

BURNER DOES NOT IGNITE

FAN

Next: End

BURNER DOES NOT EST

PRIMARY HEAT EXCHANGER

Next: End

FLAME SENSE BURNER IGNITES DOES NOT ESTABLISH

PCB

Next: End

FLAME SENSE

PCB

Next: End

SHORTING TO EARTH

ELECTRODE

Next: End

BURNER DOES NOT ESTABLISH

GAS VALVE

Next: End

BAFFLES OUT

MEMBRANE

Next: End

BAFFLES OUT

FAN

Next: End

BURNER BAFFLES OUT

PRIMARY HEAT EXCHANGER

Next: End

DOES NOT IGNITE - OPEN CIRCUIT

LIMITER - TEMPERATURE (CORROSION)

Next: End

APS/FLUE/OH

HARNESS - MAINS

Next: End

DOES NOT IGNITE - HIGH RESIST

LIMITER - TEMPERATURE (CORROSION)

Next: End

BURNER DOES NOT IGNITE NO DROP OVERHEAT

HARNESS - MAINS

Next: End

VOLTAGE GAS VALVE 1

PCB

Next: End

BURNER DOES NOT IGNITE

HARNESS - MAINS

Next: End

NOT IGNITING NO DROP

MEMBRANE

Next: End

NOT IGNITING NO DROP

FAN

Next: End

BURNER DOES NOT IGNITE2

PRIMARY HEAT EXCHANGER

Next: End

BURNER DOES NOT IGNITE 2

GAS VALVE

Next: End

NOT IGNITING WITH DROP

MEMBRANE

Next: End

NOT IGNITING WITH DROP

FAN

Next: End

BURNER DOES NOT IGNITE

GAS VALVE

Next: End

FAN PRESSURE TEST

MEMBRANE

Next: End

FAN PRESSURE TEST

FAN

Next: End

PRIMARY PRE TEST FAN PRESSURE

PRIMARY HEAT EXCHANGER

Next: End

DHW BURNER IGNITION ESTABLISH - INTERMITTENT NO DROP

MEMBRANE

Next: End

DHW BURNER IGNITION ESTABLISH - INTERMITTENT NO DROP

FAN

Next: End

DHW BURNER IGNITION ESTABLISH - INTERMITTENT 2

PRIMARY HEAT EXCHANGER

Next: End

DHW BURNER IGNITION ESTABLISH - INTERMITTENT

GAS VALVE SETTING RETEST

Next: End

DHW BURNER IGNITION ESTABLISH - INTERMITTENT

GAS VALVE SETTING

Next: End

DHW BURNER IGNITION ESTABLISH - INTERMITTENT

NO FAULT INTERMITTENT IGNITION

Next: End

DHW BURNER IGNITION ESTABLISH - INTERMITTENT WITH DROP

MEMBRANE

Next: End

DHW BURNER IGNITION ESTABLISH - INTERMITTENT DROP

FAN

Next: End

FAN DOES NOT RUN - NEW STYLE FAN

PCB

Next: End

DOES NOT RUN - NEW STYLE

FAN

Next: End

FAN RUNS - NEW STYLE

FAN

Next: End

FAN DOES NOT RUN

PCB

Next: End

DOES NOT RUN

FAN PCB

Next: End

FAN RUNS

FAN PCB

Next: End

FAN REDUCES AND STOPS - NEW STYLE

PCB

Next: End

SLOW THEN TO HIGH SPEED - NEW STYLE

FAN

Next: End

BELOW 124 VAC - NEW STYLE

FAN

Next: End

FAN REDUCES AND STOPS

PCB

Next: End

SLOW THEN TO HIGH SPEED

FAN PCB

Next: End

BELOW 124 VAC

FAN PCB

Next: End

FUSE INVESTIGATION

FAN PCB

Next: End

VOLATILE LOCKOUT FAN REDUCES AND STOPS - NEW STYLE

PCB

Next: End

VOLATILE LOCKOUT SLOW THEN TO HIGH SPEED - NEW STYLE

FAN

Next: End

VOLATILE LOCKOUT BELOW 124 VAC - NEW STYLE

FAN

Next: End

VOLATILE LOCKOUT FAN REDUCES AND STOPS

PCB

Next: End

VOLATILE LOCKOUT SLOW THEN TO HIGH SPEED

FAN PCB

Next: End

VOLATILE LOCKOUT BELOW 124 VAC

FAN PCB

Next: End

VOLATILE LOCKOUT FAN RUNS - NEW STYLE FAN

PCB

Next: End

VOLATILE LOCKOUT FAN RUNS 1- NEW STYLE

FAN

Next: End

VOLATILE LOCKOUT FAN RUNS - NEW STYLE

FAN

Next: End

FAN DOES NOT RUN1 FAULT CODE

PCB

Next: End

FAN RUNS1 FAULT CODE

FAN PCB

Next: End

DOES NOT RUN1 FAULT CODE

FAN PCB

Next: End

FAN RUNS BUT BURNER DOES NOT IGNITE

CHARACTERISTIC TEST FROM OBSERVATION BURNER IGNITION & ESTABLISH

Next: p2886

CO2 SETTINGS INCORRECT

CHARACTERISTIC TEST FROM COMBUSTION ANALYSIS MAX AND MIN

Next: p2433

BURNER DROPS OUT IN MINIMUM MODE

CHARACTERISTIC TEST FROM COMBUSTION ANALYSIS MAX AND MIN

Next: p2437

VOLATILE LOCKOUT DISPLAYED WITHIN 10 SECONDS, FAN DOES NOT RUN

CHARACTERISTIC TEST FROM OBSERVATION BLUE LED - FAULT CODE

Next: p2593

VOLATILE LOCKOUT DISPLAYED AFTER MORE THAN 20 SECONDS, FAN DOES NOT RUN

CHARACTERISTIC TEST FROM OBSERVATION BLUE LED - FAULT CODE

Next: p3145

BOILER NOISY

CHARACTERISTIC TEST FROM OPERATION CH

Next: p2704

BOILER REACHES TEMPERATURE, RADS DO NOT HEAT OR ONLY GET WARM

CHARACTERISTIC TEST FROM OPERATION CH

Next: p2706

EXCESSIVE SYSTEM PRESSURE RISE

CHARACTERISTIC TEST FROM OPERATION CH

Next: p2708

BOILER AND RADIATORS ONLY GET WARM

CHARACTERISTIC TEST FROM OPERATION CH

Next: p2710

TEMPERATURE DIFFERENTIAL INCORRECT LOCAL NOISE

CHARACTERISTIC TEST FROM DIFFERENTIAL FLOW RETURN

Next: !p2738

DIFFERENTIAL OK SYSTEM NOISE

CHARACTERISTIC TEST FROM DIFFERENTIAL FLOW RETURN

Next: !p2740

BOILER DOES NOT RESPOND TO DHW DEMAND

CHARACTERISTIC TEST FROM OPERATION DHW

Next: !p2743

DHW OPERATION UNSATISFACTORY

CHARACTERISTIC TEST FROM OPERATION DHW

Next: !p2745

FLUE STAT CORRODED, DAMAGED AND/OR MOISTURE PRESENT

CHARACTERISTIC TEST FROM RESISTANCE SAFETY CIRCUIT

Next: !p2831

RESISTANCE NOT AS EXPECTED

CHARACTERISTIC TEST FROM RESISTANCE SAFETY CIRCUIT

Next: p2833

FAN MEMBRANE DAMAGED OR WORN

CHARACTERISTIC TEST FROM INSPECTION FAN MEMBRANE

Next: !p2852

FAN STIFF TO TURN OR SEIZED

CHARACTERISTIC TEST FROM INSPECTION FAN MEMBRANE

Next: !p2854

VOLTAGE PRESENT ON TEST 1 BUT DOES NOT DROP OR FLUCTUATES

CHARACTERISTIC TEST FROM RECTIFICATION VOLTAGE

Next: p2860

VOLTAGE ABSENT ON TEST 1

CHARACTERISTIC TEST FROM RECTIFICATION VOLTAGE

Next: p2862

FAN MEMBRANE DAMAGED OR WORN

CHARACTERISTIC TEST FROM INSPECTION FAN MEMBRANE

Next: !p2881

FAN STIFF TO TURN OR SEIZED

CHARACTERISTIC TEST FROM INSPECTION FAN MEMBRANE

Next: !p2883

FLUE STAT CORRODED, DAMAGED, OR MOISTURE PRESENT

CHARACTERISTIC TEST FROM RESISTANCE SAFETY CIRCUIT

Next: !p2891

RESISTANCE NOT AS EXPECTED

CHARACTERISTIC TEST FROM RESISTANCE SAFETY CIRCUIT

Next: p2893

FLUE STAT CORRODED, DAMAGED, OR MOISTURE PRESENT

CHARACTERISTIC TEST FROM RESISTANCE SAFETY CIRCUIT

Next: !p2920

RESISTANCE NOT AS EXPECTED

CHARACTERISTIC TEST FROM RESISTANCE SAFETY CIRCUIT

Next: p2922

FAN MEMBRANE DAMAGED OR WORN

CHARACTERISTIC TEST FROM INSPECTION FAN MEMBRANE

Next: !p2946

FAN STIFF TO TURN OR SEIZED

CHARACTERISTIC TEST FROM INSPECTION FAN MEMBRANE

Next: !p2948

FAN MEMBRANE DAMAGED OR WORN

CHARACTERISTIC TEST FROM INSPECTION FAN MEMBRANE

Next: !p2960

FAN STIFF TO TURN OR SEIZED

CHARACTERISTIC TEST FROM INSPECTION FAN MEMBRANE

Next: !p2962

FAN MEMBRANE DAMAGED OR WORN

CHARACTERISTIC TEST FROM INSPECTION FAN MEMBRANE

Next: !p2991

FAN STIFF TO TURN OR SEIZED

CHARACTERISTIC TEST FROM INSPECTION FAN MEMBRANE

Next: !p2993

BURNER DOES NOT IGNITE SMOOTHLY / INTERMITTENT IGNITION

CHARACTERISTIC TEST FROM OBSERVATION BURNER IGNITION & ESTABLISH

Next: p2997

FAN MEMBRANE DAMAGED OR WORN

CHARACTERISTIC TEST FROM INSPECTION FAN MEMBRANE

Next: !p3009

FAN STIFF TO TURN OR SEIZED

CHARACTERISTIC TEST FROM INSPECTION FAN MEMBRANE

Next: !p3011

BURNER DROPS OUT IN MINIMUM MODE

CHARACTERISTIC TEST FROM COMBUSTION ANALYSIS MAX AND MIN

Next: p3019

CO2 SETTINGS INCORRECT

CHARACTERISTIC TEST FROM COMBUSTION ANALYSIS MAX AND MIN

Next: p3021

FAN MEMBRANE DAMAGED OR WORN

CHARACTERISTIC TEST FROM INSPECTION FAN MEMBRANE

Next: !p3043

FAN STIFF TO TURN OR SEIZED

CHARACTERISTIC TEST FROM INSPECTION FAN MEMBRANE

Next: !p3045

240 VOLTS ABSENT BETWEEN PURPLE/BROWN

CHARACTERISTIC TEST FROM VOLTAGE FAN (AT PCB)

Next: !p3051

240 VOLTS PRESENT BETWEEN PURPLE/BROWN BUT OTHERS NOT AS ABOVE

CHARACTERISTIC TEST FROM VOLTAGE FAN (AT PCB)

Next: p3180

240 VOLTS ABSENT BETWEEN PURPLE/BROWN

CHARACTERISTIC TEST FROM VOLTAGE FAN (AT PCB)

Next: !p3063

240 VOLTS PRESENT BETWEEN PURPLE/BROWN BUT OTHERS NOT AS ABOVE

CHARACTERISTIC TEST FROM VOLTAGE FAN (AT PCB)

Next: p3184

VOLTAGE ABOVE 120 VAC

CHARACTERISTIC TEST FROM FAN VOLTAGE CONTROL (PCB) - NEW STYLE

Next: p3082

VOLTAGE BETWEEN 110 VAC AND 120 VAC

CHARACTERISTIC TEST FROM FAN VOLTAGE CONTROL (PCB) - NEW STYLE

Next: p3084

VOLTAGE ABOVE 135 VAC

CHARACTERISTIC TEST FROM FAN VOLTAGE CONTROL (PCB)

Next: p3094

VOLTAGE BETWEEN 124 VAC AND 135 VAC

CHARACTERISTIC TEST FROM FAN VOLTAGE CONTROL (PCB)

Next: p3096

VOLTAGE ABOVE 120 VAC

CHARACTERISTIC TEST FROM FAN VOLTAGE CONTROL (PCB) - NEW STYLE

Next: p3120

VOLTAGE BETWEEN 110 VAC AND 120 VAC

CHARACTERISTIC TEST FROM FAN VOLTAGE CONTROL (PCB) - NEW STYLE

Next: p3122

VOLTAGE ABOVE 135 VAC

CHARACTERISTIC TEST FROM FAN VOLTAGE CONTROL (PCB)

Next: p3132

VOLTAGE BETWEEN 124 VAC AND 135 VAC

CHARACTERISTIC TEST FROM FAN VOLTAGE CONTROL (PCB)

Next: p3134

240 VOLTS ABSENT BETWEEN PURPLE/BROWN

CHARACTERISTIC TEST FROM VOLTAGE FAN (AT PCB)

Next: !p3150

240 VOLTS PRESENT BETWEEN PURPLE/BROWN BUT OTHERS NOT AS ABOVE

CHARACTERISTIC TEST FROM VOLTAGE FAN (AT PCB)

Next: p3192

240 VOLTS ABSENT BETWEEN PURPLE/BROWN

CHARACTERISTIC TEST FROM VOLTAGE FAN (AT PCB)

Next: !p3162

240 VOLTS PRESENT BETWEEN PURPLE/BROWN BUT OTHERS NOT AS ABOVE

CHARACTERISTIC TEST FROM VOLTAGE FAN (AT PCB)

Next: p3196

BURNER IGNITES SMOOTHLY, BUT DOES NOT ESTABLISH

CHARACTERISTIC TEST FROM OBSERVATION BURNER IGNITION & ESTABLISH

Next: p319

FAN DOES NOT RUN

CHARACTERISTIC TEST FROM OBSERVATION BURNER IGNITION & ESTABLISH

Next: p1632

BURNER IGNITES BUT BAFFLES

CHARACTERISTIC TEST FROM OBSERVATION BURNER IGNITION & ESTABLISH

Next: p987

10/03/2022 13:59:47 2203_1_50_1 01/06/2022 12:27:13

16/05/2022 13:00:33

Next: End

VOLTAGE MAINS POWER INPUT TO APPLIANCE

{GAINPCBACS}

Next: p1054, f1055

RESISTANCE FUSE (FUSED SPUR)

REMOVE FUSE FROM FUSED SPUR

Next: !p1056, f1057

FUSE FURTHER INVESTIGATION

Next: !p1058, !f1059

FUSE F1

REMOVE CONTROL BOX COVER IF NECESSARY

Next: p1635, f1636

FUSE FURTHER INVESTIGATION F1

Next: !p1637, !f1638

FUSE FURTHER INVESTIGATION F3

Next: !p1641, !f1642

FUSE FURTHER INVESTIGATION F2

Next: !p1645, !f1646

RESISTANCE OH STAT

DISCONNECT ONE OF THE ORANGE LEADS FROM THE OVERHEAT STAT

Next: !p1990, !f1991

PUMP VOLTAGE

{GAINPCBACS}

Next: p2201, !f2202

INTERNAL FAULT RESET

Next: !p2336, !f2337

OBSERVATION BLUE LED - FAULT CODE

PREHEAT SWITCHED OFF (ECO BUTTON ILLUMINATED)

Next: p3115, ?2591, ?2604

INSPECTION SEAL INTEGRITY

Next: !p2505, !f2506

RESISTANCE SENSOR TEMP FLOW

DISCONNECT PLUG (RE

Next: !p2598, !f2599

OBSERVATION PUMP RUNS LOCKOUT

{GAINPCBACS}
DISCONNECT CONNECTOR ST9 FROM THE PCB AND MAKE SAFE

Next: p2807, f2666

VOLTAGE PUMP AT PCB (LOCKOUT)

{GAINPCBACS}
DISCONNECT CONNECTOR ST9 FROM THE PCB AND MAKE SAFE

Next: p2667, !f2668

RESISTANCE SENSOR TEMP FLOW

DISCONNECT PLUG (RE

Next: !p2688, !f2689

RESISTANCE SIT GAS VALVE AND HARNESS - FURTHER INVESTIGATION

REMOVE ST9 CONNECTOR

Next: p2793, f2794

RESISTANCE - SIT GAS VALVE SOLENOIDS

REMOVE THE TWO CONNECTORS FROM THE GAS VALVE

Next: !p2795, !f2796

RESISTANCE PUMP

DISCONNECT THE PUMP CONNECTOR
ENSURE PUMP SPEED SELECTOR IS SET TO POSITION 3

Next: !p2799, !f2800

RESISTANCE FAN

DISCONNECT FAN CONNECTOR AT FAN

Next: !p2803, f3109

EXTERNAL CONTROL VOLTAGE (SEND)

Next: !p2810, !f2811

RESISTANCE SAFETY CIRCUIT

DISCONNECT CONNECTOR

Next: !p2829, ?2830, ?2832

BURNER INSPECTION

REMOVE FAN/MANIFOLD ASSEMBLY
REMOVE THE BURNER/BAFFLES ASSEMBLY

Next: p2838, !f2839

INSPECTION FLUE

Next: p2847, !f2848

INSPECTION HARNESS ELECTRODE SENSE

DISCONNECT THE CONNECTOR FROM THE FLAME SENSE
ELECTRODE AT THE TOP OF THE APPLIANCE

Next: !p2865, !f2866

INSPECTION FLUE

Next: p2874, !f2875

RESISTANCE SAFETY CIRCUIT

DISCONNECT CONNECTOR

Next: p3077, ?2890, ?2892

RESISTANCE SAFETY CIRCUIT

DISCONNECT CONNECTOR

Next: p2918, ?2919, ?2921

RESISTANCE - SIT GAS VALVE SOLENOIDS

REMOVE THE TWO CONNECTORS FROM THE GAS VALVE

Next: p2929, !f2930

RESISTANCE - SIT GAS VALVE SOLENOIDS

REMOVE THE TWO CONNECTORS FROM THE GAS VALVE

Next: !p2935, !f2936

INSPECTION FLUE

Next: p2939, !f2940

CONDENSATE PIPE

Next: p2982, !f2983

CONDENSATE PIPE

Next: p3000, !f3001

VOLTAGE FAN (AT PCB) - NEW STYLE

MOVE CONNECTOR ST5 U

Next: p3049, ?3050, ?3052

FAN VOLTAGE CONTROL (PCB) - NEW STYLE

{GAINPCBACS}
MOVE CONNECTOR ST5 TO EXPOSE TERMINALS ON PCB

Next: p3080, ?3081, ?3083

OBSERVATION FAN TYPE

Next: p3110, !f3111

FAN VOLTAGE CONTROL (PCB) - NEW STYLE

{GAINPCBACS}
MOVE CONNECTOR ST5 TO EXPOSE TERMINALS ON PCB

Next: p3118, ?3119, ?3121

VOLTAGE FAN (AT PCB) - NEW STYLE

MOVE CONNECTOR ST5 U

Next: p3148, ?3149, ?3151

BOILER RESET - OVERHEAT

ENSURE BOILER HAS COOLED

Next: p923, f2828

FAN RUNS DHW DEMAND

Next: p1060, !f1139

FURTHER INVESTIGATION LED PROBLEM

Next: !p1072, !f1073

VOLTAGE AT PCB

{GAINPCBACS}

Next: p1633, f1634

INSPECTION CODE PLUG

LOWER THE FACIA PANEL

Next: p2685, !f2657

FUSE F3

REMOVE CONTROL BOX C

Next: p1639, f1640

FUSE F2

REMOVE CONTROL BOX C

Next: p1643, f1644

TRANSFORMER RESISTANCE

REMOVE THE BACK PLATE OF THE CONTROL BOX AND THE TRANSFORMER FROM THE PCB

Next: !p1647, !f1648

RUN BOILER TO MAX TEMP-DOES OVERHEAT OCCUR

ATTACH TEMPERATURE CLAMP TO FLOW PIPE
SET BOILER TEMPERATURE CONTROL TO MAX

Next: p1789, f1989

COOL APPLIANCE

ENSURE ALL RADS ARE TURNED ON
ATTACH TEMPERATURE CLAMP TO FLOW PIPE

Next: p1797, !f1798

PRIMARY SENSOR (HIGH FLAME)

DISCONNECT PLUG (RE

Next: !p1799, !f1800

INSPECTION GAS SUPPLY TUBE

Next: p992, !f2134

PUMP RUNNING

Next: p924, f2200

PUMP HARNESS CONTINUITY

REMOVE THE ELECTRICAL CONNECTOR FROM THE PUMP AND
THE PUMP CONNECTOR ST4 FROM THE PCB

Next: !p2203, !f2204

DIFFERENTIAL PRIMARY HEAT EXCHANGER

CH TEMPERATURE CONTR

Next: p1788, !f2777

INSPECTION GAS SUPPLY TUBE

Next: !p2434, !f2436

INSPECTION GAS SUPPLY TUBE

Next: !p2438, !f2439

CONDENSATE PIPE

Next: p2842, !f2560

INSPECTION CODE PLUG

LOWER THE FACIA PANEL

Next: p2594, !f2595

RESISTANCE SENSOR TEMP FLOW AND HARNESS

DISCONNECT CONNECTOR

Next: !p2779, f2597

PUMP HARNESS CONTINUITY

REMOVE THE ELECTRICAL CONNECTOR FROM THE PUMP AND
THE PUMP CONNECTOR ST4 FROM THE PCB

Next: !p2669, !f2670

RESISTANCE SENSOR TEMP FLOW AND HARNESS

DISCONNECT CONNECTOR

Next: p3046, f2687

INSPECTION SYSTEM FILLED AND VENTED

Next: p2729, !f2730

INSPECTION SYSTEM FILLED AND VENTED

Next: p2719, !f2720

INSPECTION VESSEL PRESSURE

CLOSE FLOW AND RETURN ISOLATION VALVES
DISCHARGE PRIMARY SYSTEM WATER

Next: !p2717, !f2718

INSPECTION SYSTEM FILLED AND VENTED

Next: p2711, !f2712

PUMP LIMPET TEST

Next: p2713, !f2714

RESISTANCE SENSOR TEMP FLOW

DISCONNECT PLUG (RE

Next: !p2715, !f2716

INSPECTION ISOLATION VALVES FLOW AND RETURN

Next: p2721, !f2722

PUMP LIMPET TEST

Next: p2723, !f2724

BYPASS (INTERNAL)

ENSURE RADS ARE OPEN AND WATER CAN CIRCULATE AROUND THE SYSTEM
USE AN FGA TEMPERATURE PROBE

Next: !p2725, !f2726

PUMP LIMPET TEST

Next: p2731, !f2732

PRIMARY SENSOR (HIGH FLAME)

DISCONNECT PLUG (RE

Next: p2733, !f2734

DIFFERENTIAL FLOW RETURN

TEMPERATURE CONTROL SET TO MAX
ATTACH TEMPERATURE CLAMPS TO FLOW AND RETURN PIPES

Next: !p2735, ?2737, ?2739

RESISTANCE PUMP AND HARNESS

REMOVE THE PUMP CONNECTOR ST4 FROM THE PCB
ENSURE PUMP SPEED SELECTOR IS SET TO POSITION 3

Next: p2797, f2798

RESISTANCE FAN AND HARNESS

DISCONNECT FAN CONNECTOR ST5 FROM THE PCB

Next: p2801, f2802

RESISTANCE TRANSFORMER

REMOVE THE BACK PLATE OF THE CONTROL BOX AND THE TRANSFORMER FROM THE PCB

Next: !p2805, !f2806

EXTERNAL CONTROLS VOLTAGE (RETURN)

{GAINPCBACS}
EXTERNAL CONTROLS CALLING FOR HEAT

Next: !p2808, f2809

RESISTANCE OH STAT

DISCONNECT ONE OF THE ORANGE LEADS FROM THE OVERHEAT STAT

Next: p2834, !f2835

RESISTANCE FLUE OH STAT

DISCONNECT ONE OF THE ORANGE LEADS FROM THE OVERHEAT STAT

Next: !p2836, f2837

INSPECTION HEAT EXCHANGER

REMOVE FAN/MANIFOLD

Next: !p2840, !f2841

INSPECTION GAS SUPPLY TUBE

Next: p2843, !f2844

FAN PRESSURE TEST (IGNITION)

ATTACH PRESSURE GAUGE TO FAN PRESSURE TEST POINT

Next: p2845, f2846

RECTIFICATION VOLTAGE

{GAINPCBACS}

Next: !p2857, ?2859, ?2861

INSPECTION FAN MEMBRANE

REMOVE FAN ASSEMBLY FROM APPLIANCE

Next: p2849, ?2851, ?2853

BURNER INSPECTION

REMOVE FAN/MANIFOLD ASSEMBLY
REMOVE THE BURNER/BAFFLES ASSEMBLY

Next: !p2855, !f2856

ELECTRODE SENSE HARNESS

DISCONNECT FLAME SEN

Next: p2867, !f2868

RESISTANCE HARNESS ELECTRODE SENSE TO EARTH

DISCONNECT CONNECTER

Next: !p2863, f2864

ELECTRODE SENSE

REMOVE THE ELECTRODE ASSEMBLY

Next: p2869, !f2870

BURNER INSPECTION

REMOVE FAN/MANIFOLD ASSEMBLY
REMOVE THE BURNER/BAFFLES ASSEMBLY

Next: !p2871, !f2872

INSPECTION GAS SUPPLY TUBE

Next: p2876, !f2877

INSPECTION FAN MEMBRANE

REMOVE FAN ASSEMBLY FROM APPLIANCE

Next: p2878, ?2880, ?2882

BURNER INSPECTION

REMOVE FAN/MANIFOLD ASSEMBLY
REMOVE THE BURNER/BAFFLES ASSEMBLY

Next: !p2884, !f2885

SPARKING PRESENT TEST

REMOVE SPARK LEADS F

Next: p2887, f2888

CONDENSATE PIPE

Next: p2912, !f2913

RESISTANCE OH STAT

DISCONNECT ONE OF THE ORANGE LEADS FROM THE OVERHEAT STAT

Next: p2894, !f2895

RESISTANCE FLUE OH STAT

DISCONNECT ONE OF THE ORANGE LEADS FROM THE OVERHEAT STAT

Next: !p2896, !f2897

INLET PRESSURE

ATTACH PRESSURE GAUGE TO INLET PRESSURE TEST POINT ON GAS VALVE

Next: p2914, !f2915

PRESSURE GAS INLET DROP

ATTACH PRESSURE GAUGE TO INLET PRESSURE TEST POINT ON GAS VALVE

Next: p2916, f2917

ELECTRODE SPARK HARNESS

REMOVE THE IGNITION HARNESS CONNECTION FROM THE
ELECTRODES TOP OF THE BURNER AND FROM THE PCB

Next: p2953, !f2954

VOLTAGE GAS VALVE AT PCB

{GAINPCBACS}
REMOVE THE GAS VALVE CONNECTORS FROM THE GAS VALVE AND MAKE SAFE

Next: p2927, f2928

RESISTANCE OH STAT

DISCONNECT ONE OF THE ORANGE LEADS FROM THE OVERHEAT STAT

Next: p2923, !f2924

RESISTANCE FLUE OH STAT

DISCONNECT ONE OF THE ORANGE LEADS FROM THE OVERHEAT STAT

Next: !p2925, !f2926

RESISTANCE - SIT GAS VALVE AND HARNESS

REMOVE ST9 CONNECTOR

Next: p2933, f2934

RESISTANCE GAS VALVE HARNESS

REMOVE THE CONNECTOR

Next: !p2931, !f2932

FAN PRESSURE TEST (IGNITION)

ATTACH PRESSURE GAUGE TO FAN PRESSURE TEST POINT

Next: p2937, f2938

INSPECTION GAS SUPPLY TUBE

Next: !p2951, !f2952

INSPECTION GAS SUPPLY TUBE

Next: p2941, !f2942

INSPECTION FAN MEMBRANE

REMOVE FAN ASSEMBLY FROM APPLIANCE

Next: p2943, ?2945, ?2947

BURNER INSPECTION

REMOVE FAN/MANIFOLD ASSEMBLY
REMOVE THE BURNER/BAFFLES ASSEMBLY

Next: !p2949, !f2950

INSPECTION GAS SUPPLY TUBE

Next: p2955, !f2956

INSPECTION FAN MEMBRANE

REMOVE FAN ASSEMBLY FROM APPLIANCE

Next: p2957, ?2959, ?2961

INSPECTION SPARK ELECTRODE

REMOVE THE ELECTRODE ASSEMBLY

Next: p2963, !f2964

BURNER INSPECTION

REMOVE FAN/MANIFOLD ASSEMBLY
REMOVE THE BURNER/BAFFLES ASSEMBLY

Next: p2965, !f2966

INSPECTION HEAT EXCHANGER

REMOVE FAN/MANIFOLD

Next: !p2967, !f2968

INSPECTION FLUE

Next: p2984, !f2985

INSPECTION GAS SUPPLY TUBE

Next: p2986, !f2987

INSPECTION FAN MEMBRANE

REMOVE FAN ASSEMBLY FROM APPLIANCE

Next: p2988, ?2990, ?2992

BURNER INSPECTION

REMOVE FAN/MANIFOLD ASSEMBLY
REMOVE THE BURNER/BAFFLES ASSEMBLY

Next: !p2994, !f2995

FAN PRESSURE TEST

ATTACH PRESSURE GAUGE TO FAN PRESSURE TEST POINT

Next: p2998, f2999

INLET PRESSURE

ATTACH PRESSURE GAUGE TO INLET PRESSURE TEST POINT ON GAS VALVE

Next: p3014, !f3015

INSPECTION FLUE

Next: p3002, !f3003

INSPECTION GAS SUPPLY TUBE

Next: p3004, !f3005

INSPECTION FAN MEMBRANE

REMOVE FAN ASSEMBLY FROM APPLIANCE

Next: p3006, ?3008, ?3010

BURNER INSPECTION

REMOVE FAN/MANIFOLD ASSEMBLY
REMOVE THE BURNER/BAFFLES ASSEMBLY

Next: !p3012, !f3013

COMBUSTION ANALYSIS MAX AND MIN

Next: p3016, ?3018, ?3020

SPARKING PRESENT TEST

REMOVE SPARK LEADS F

Next: p3026, !f3027

INSPECTION GAS SUPPLY TUBE

Next: !p3024, !f3025

INSPECTION GAS SUPPLY TUBE

Next: !p3022, !f3023

CONDENSATE PIPE

Next: p3028, !f3029

INSPECTION FLUE OH STAT

Next: p3030, !f3031

INSPECTION GAS SUPPLY TUBE

Next: p3032, !f3033

ELECTRODE SENSE HARNESS

DISCONNECT FLAME SEN

Next: p3034, !f3035

ELECTRODE SPARK HARNESS

REMOVE THE IGNITION HARNESS CONNECTION FROM THE
ELECTRODES TOP OF THE BURNER AND FROM THE PCB

Next: p3036, !f3037

INSPECTION ELECTRODES

REMOVE THE ELECTRODE ASSEMBLY

Next: p3038, !f3039

INSPECTION FAN MEMBRANE

REMOVE FAN ASSEMBLY FROM APPLIANCE

Next: !p3040, ?3042, ?3044

OBSERVATION FAN TYPE

Next: p3047, f3048

VOLTAGE FAN (AT PCB)

MOVE CONNECTOR ST5 U

Next: p3060, ?3062, ?3064

VOLTAGE FAN (PCB DEMAND)

DISCONNECT ELECTRICA

Next: p3056, !f3057

RESISTANCE FAN HARNESS

DISCONNECT CONNECTOR ST5 FROM THE PCB
DISCONNECT CONNECTOR FROM THE FAN ASSEMBLY

Next: !p3054, !f3055

RESISTANCE FAN HARNESS

DISCONNECT CONNECTOR ST5 FROM THE PCB
DISCONNECT CONNECTOR FROM THE FAN ASSEMBLY

Next: !p3058, !f3059

VOLTAGE FAN (PCB DEMAND)

DISCONNECT ELECTRICA

Next: p3070, !f3071

RESISTANCE FAN HARNESS

DISCONNECT CONNECTOR ST5 FROM THE PCB
DISCONNECT CONNECTOR FROM THE FAN ASSEMBLY

Next: p3066, !f3067

INSPECTION FAN

REMOVE PCB FROM FAN ASSEMBLY (FOR INSTRUCTIONS CLICK HERE)

Next: !p3068, !f3069

RESISTANCE FAN HARNESS

DISCONNECT CONNECTOR ST5 FROM THE PCB
DISCONNECT CONNECTOR FROM THE FAN ASSEMBLY

Next: p3072, !f3073

INSPECTION FAN

REMOVE PCB FROM FAN ASSEMBLY (FOR INSTRUCTIONS CLICK HERE)

Next: !p3074, !f3075

OBSERVATION FAN TYPE

Next: p3078, f3079

FAN VOLTAGE CONTROL (PCB)

{GAINPCBACS}
MOVE CONNECTOR ST5 TO EXPOSE TERMINALS ON PCB

Next: p3091, ?3093, ?3095

RESISTANCE FAN HARNESS

DISCONNECT CONNECTOR ST5 FROM THE PCB
DISCONNECT CONNECTOR FROM THE FAN ASSEMBLY

Next: !p3089, !f3090

RESISTANCE FAN HARNESS

DISCONNECT CONNECTOR ST5 FROM THE PCB
DISCONNECT CONNECTOR FROM THE FAN ASSEMBLY

Next: !p3087, !f3088

RESISTANCE FAN HARNESS

DISCONNECT CONNECTOR ST5 FROM THE PCB
DISCONNECT CONNECTOR FROM THE FAN ASSEMBLY

Next: !p3085, !f3086

RESISTANCE FAN HARNESS

DISCONNECT CONNECTOR ST5 FROM THE PCB
DISCONNECT CONNECTOR FROM THE FAN ASSEMBLY

Next: p3103, !f3104

RESISTANCE FAN HARNESS

DISCONNECT CONNECTOR ST5 FROM THE PCB
DISCONNECT CONNECTOR FROM THE FAN ASSEMBLY

Next: p3099, !f3100

RESISTANCE FAN HARNESS

DISCONNECT CONNECTOR ST5 FROM THE PCB
DISCONNECT CONNECTOR FROM THE FAN ASSEMBLY

Next: !p3097, !f3098

INSPECTION FAN

REMOVE PCB FROM FAN ASSEMBLY (FOR INSTRUCTIONS CLICK HERE)

Next: !p3101, !f3102

INSPECTION FAN

REMOVE PCB FROM FAN ASSEMBLY (FOR INSTRUCTIONS CLICK HERE)

Next: !p3105, !f3106

INSPECTION FAN

REMOVE PCB FROM FAN ASSEMBLY (FOR INSTRUCTIONS CLICK HERE)

Next: !p3112, !f3113

OBSERVATION FAN TYPE

Next: p3116, f3117

FAN VOLTAGE CONTROL (PCB)

{GAINPCBACS}
MOVE CONNECTOR ST5 TO EXPOSE TERMINALS ON PCB

Next: p3129, ?3131, ?3133

RESISTANCE FAN HARNESS

DISCONNECT CONNECTOR ST5 FROM THE PCB
DISCONNECT CONNECTOR FROM THE FAN ASSEMBLY

Next: !p3127, !f3128

RESISTANCE FAN HARNESS

DISCONNECT CONNECTOR ST5 FROM THE PCB
DISCONNECT CONNECTOR FROM THE FAN ASSEMBLY

Next: !p3125, !f3126

RESISTANCE FAN HARNESS

DISCONNECT CONNECTOR ST5 FROM THE PCB
DISCONNECT CONNECTOR FROM THE FAN ASSEMBLY

Next: !p3123, !f3124

RESISTANCE FAN HARNESS

DISCONNECT CONNECTOR ST5 FROM THE PCB
DISCONNECT CONNECTOR FROM THE FAN ASSEMBLY

Next: p3141, !f3142

RESISTANCE FAN HARNESS

DISCONNECT CONNECTOR ST5 FROM THE PCB
DISCONNECT CONNECTOR FROM THE FAN ASSEMBLY

Next: p3137, !f3138

RESISTANCE FAN HARNESS

DISCONNECT CONNECTOR ST5 FROM THE PCB
DISCONNECT CONNECTOR FROM THE FAN ASSEMBLY

Next: !p3135, !f3136

INSPECTION FAN

REMOVE PCB FROM FAN ASSEMBLY (FOR INSTRUCTIONS CLICK HERE)

Next: !p3139, !f3140

INSPECTION FAN

REMOVE PCB FROM FAN ASSEMBLY (FOR INSTRUCTIONS CLICK HERE)

Next: !p3143, !f3144

OBSERVATION FAN TYPE

Next: p3146, f3147

VOLTAGE FAN (AT PCB)

MOVE CONNECTOR ST5 U

Next: p3159, ?3161, ?3163

VOLTAGE FAN (PCB DEMAND)

DISCONNECT ELECTRICA

Next: p3155, !f3156

RESISTANCE FAN HARNESS

DISCONNECT CONNECTOR ST5 FROM THE PCB
DISCONNECT CONNECTOR FROM THE FAN ASSEMBLY

Next: !p3153, !f3154

RESISTANCE FAN HARNESS

DISCONNECT CONNECTOR ST5 FROM THE PCB
DISCONNECT CONNECTOR FROM THE FAN ASSEMBLY

Next: !p3157, !f3158

VOLTAGE FAN (PCB DEMAND)

DISCONNECT ELECTRICA

Next: p3171, !f3172

RESISTANCE FAN HARNESS

DISCONNECT CONNECTOR ST5 FROM THE PCB
DISCONNECT CONNECTOR FROM THE FAN ASSEMBLY

Next: p3177, !f3166

RESISTANCE FAN HARNESS

DISCONNECT CONNECTOR ST5 FROM THE PCB
DISCONNECT CONNECTOR FROM THE FAN ASSEMBLY

Next: p3173, !f3174

INSPECTION FAN

REMOVE PCB FROM FAN ASSEMBLY (FOR INSTRUCTIONS CLICK HERE)

Next: !p3175, !f3176

INSPECTION FAN

REMOVE PCB FROM FAN ASSEMBLY (FOR INSTRUCTIONS CLICK HERE)

Next: !p3178, !f3179

VOLTAGE MAINS GND PWM AND HALL

REMOVE THE CONNECTOR FROM THE FAN AND MAKE SAFE
ENSURE NO DEMANDS

Next: p3053, !f3191

VOLTAGE MAINS GND PWM AND HALL

REMOVE THE CONNECTOR FROM THE FAN AND MAKE SAFE
ENSURE NO DEMANDS

Next: p3065, !f3190

INLET PRESSURE

ATTACH PRESSURE GAUGE TO INLET PRESSURE TEST POINT ON GAS VALVE

Next: p2558, !f393

VOLTAGE MAINS GND PWM AND HALL

REMOVE THE CONNECTOR FROM THE FAN AND MAKE SAFE
ENSURE NO DEMANDS

Next: p3152, !f3203

VOLTAGE MAINS GND PWM AND HALL

REMOVE THE CONNECTOR FROM THE FAN AND MAKE SAFE
ENSURE NO DEMANDS

Next: p3164, !f3202

INSPECTION SYSTEM FILLED AND VENTED

Next: p2185, !f925

PUMP LIMPET TEST

Next: p2205, !f926

CONDENSATE PIPE

Next: p989, !f988

INLET PRESSURE

ATTACH PRESSURE GAUGE TO INLET PRESSURE TEST POINT ON GAS VALVE

Next: p990, !f991

FAN PRESSURE TEST (IGNITION)

ATTACH PRESSURE GAUGE TO FAN PRESSURE TEST POINT

Next: p2130, f2873

INSPECTION FLUE

Next: !p1020, !f1011

System Information

Total Tests: 507

Sequence Logic: Decoded from encrypted .seq file

Navigation: Dynamic based on pass/fail results

Source: 4731307 GW SWIFTFLOW 100 SIT Control