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, HAS DHW KNOB, NO TRANSFORMER)

GLOBALLY REPLACED

Next: &1955, *

APPLIANCE APPEARS SATISFACTORY

Next: nff

PUMP OVERRUN

CH TEMPERATURE CONTROL SET TO MAX

Next: &185, !f184

OBSERVATION BURNER IGNITION & ESTABLISH

ENSURE PRIMARY HEAT EXCHANGER IS COOL

Next: &1826, ?318, ?986, ?1509, ?3612

MAXIMUM OUTPUT MODE

INSTRUCTIONS TO S

Next: &nff, !f701

FURTHER INVESTIGATION OVERHEAT

NOT USED

Next: &nff, f911

FURTHER INVESTIGATION FUSE BLOWN

NOT USED

Next: &nff, f1075

FAN PRESSURE TEST

ATTACH PRESSURE GAUGE TO FAN PRESSURE TEST POINT

Next: &1833, f3662

INLET PRESSURE

ATTACH PRESSURE GAUGE TO INLET PRESSURE TEST POINT ON GAS VALVE

Next: &1835, !f1834

COMBUSTION ANALYSIS MAX AND MIN

Next: &3310, ?1836, ?1838

WORCESTER GREENSTAR I SYSTEM

CASE REMOVAL<

Next: &1957, !f1956

POWER UP SELF TEST

NO DEMANDS

Next: &1990, ?1958, ?1960

TYPE OF DIAGNOSTIC PROCEDURE

PLEASE SELECT FROM O

Next: &1992, !f1991

OPERATIONAL SEQUENCE

NOT USED

Next: &3237, !f1993

FAN RUNS

Next: &317, f2895

VOLATILE LOCK OUT

NOT USED

Next: &nff, f3185

INTERNAL FAULT

NOT USED

Next: &nff, f2828

BURNER SEAL CHECK FOR OVERHEAT

OUTSIDE MODEL

Next: &nff, f3172

OBSERVATION PUMP RUNS

Next: &2362, f3238

OPERATION CH

CH TEMPERATURE CONTROL SET TO MAX

Next: &3349, ?3311, ?3313, ?3315, ?3317

OPERATION DHW

CH TEMPERATURE CONTROL SET TO MAX

Next: &183, ?3350, ?3352

INFORMATION FAN PCB REMOVAL

Next: &nff, !f3751

INFORMATION FAN DEMAND VOLTAGE

THE PWM OR (DEMAND/S

Next: &nff, !f3878

BURNER BAFFLES OUT

FLUE

Next: End

FURTHER INVESTIGATION FUSE F1

PUMP ASSEMBLY - 3 SPEED

Next: End

PRIMARY TEST

INLET PRESSURE

Next: End

PUMP OVERRUN

PCB

Next: End

SYPHON

SIPHON

Next: End

CASE REMOVAL

DIRECTION CHOICE OR CONTINUE

Next: End

FOR TYPE DIAG PROCEDURE

DIRECTION CHOICE OR CONTINUE

Next: End

OPERATIONAL SEQUENCE

DIRECTION CHOICE OR CONTINUE

Next: End

BLOWN STAND BY MODE AT POWER UP

FUSE (FUSED SPUR)

Next: End

LED AT POWER UP

PCB

Next: End

FAULT CODES

Z REDIRECTION

Next: End

NO BLUE LED

FUSE F1 (APPLIANCE PCB)

Next: End

BURNER BAFFLES OUT 1

FLUE

Next: End

PUMP - DHW COOL RADS COOLPUMP RUNNING PRE TEST 2

PCB

Next: End

DHW COOL RADS COOLPUMP RUNNING PRE TEST 2

CABLE - PUMP

Next: End

FURTHER INVESTIGATION

HARNESS - MK3 NO ON/OFF

Next: End

BAFFLES OUT

TUBE GAS SUPPLY

Next: End

BURNER BAFFLES OUT 2

BURNER

Next: End

INTERNAL FAULT

Z REDIRECTION

Next: End

NO BLUE LED 2

Z REDIRECTION

Next: End

FAN DOES NOT RUN

CODE PLUG

Next: End

BAFFLES OUT 2

TUBE GAS SUPPLY

Next: End

COMBUSTION INCORRECT

TUBE GAS SUPPLY

Next: End

DROP OUT MIN MODE

TUBE GAS SUPPLY

Next: End

BURNER DOES NOT ESTABLISH

SIPHON

Next: End

BURNER SEAL FOR OVERHEAT

FLUE / BURNER SEALS

Next: End

FAN DOES NOT RUNFAULT CODE

CODE PLUG

Next: End

FAN DOES NOT RUN 1FAULT CODE

SENSOR - CONTROL

Next: End

OBSERVATION PUMP RUNS - NO VOLTAGE TO PUMP

PCB

Next: End

OBSERVATION PUMP RUNS

CABLE - PUMP

Next: End

DHW COOL

SYSTEM PRESSURE

Next: End

BOILER AND RADS ONLY GET WARM

PUMP ASSEMBLY - 3 SPEED

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 ASSEMBLY - 3 SPEED

Next: End

RADS COLD

VALVE - BYPASS

Next: End

CH NOISY

SYSTEM PRESSURE

Next: End

CH NOISY

PUMP ASSEMBLY - 3 SPEED

Next: End

CH NOISY

SENSOR - CONTROL

Next: End

OVERHEAT INVESTIGATION

SYSTEM RESTRICTION OR BLOCKAGE

Next: End

OVERHEAT

LIMITER 120°C - TEMPERATURE

Next: End

OVERHEAT

DIRECTION CHOICE OR CONTINUE

Next: End

OVERHEAT

SENSOR - CONTROL

Next: End

FAN DOES NOT RUN

SENSOR - CONTROL

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

BURNER IGNITION OVERHEAT 1

LIMITER - TEMPERATURE

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 - MK3 NO ON/OFF

Next: End

FLAME SENSE BURNER IGNITES

HARNESS - MK3 NO ON/OFF

Next: End

BURNER IGNITES

ELECTRODES

Next: End

DOES NOT ESTABLISH 2

BURNER

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

Next: End

BURNER IGNITES

INLET PRESSURE

Next: End

BURNER DOES NOT IGNITEFAN RUNS OVERHEAT 1

LIMITER 120°C - TEMPERATURE

Next: End

BURNER DOES NOT IGNITEBURNER IGNITION OVERHEAT 1

LIMITER - TEMPERATURE

Next: End

NO VOLTAGE

PCB AND GAS VALVE

Next: End

BURNER DOES NOT IGNITE

PCB-HARNESS (MAIN)

Next: End

BURNER DOES NOT IGNITE 2

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

ELECTRODES

Next: End

DOES NOT IGNITE PRESSURE DROPS

BURNER

Next: End

DOES NOT IGNITE

HEAT EXCHANGER ASSEMBLY

Next: End

DHW BURNER IGNITION ESTABLISH - INTERMITTENT - LOW PRESSURE

SIPHON

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

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 - MK3 NO ON/OFF

Next: End

DHW BURNER IGNITION ESTABLISH - INTERMITTENT

LEAD - IGNITION

Next: End

DHW BURNER IGNITION ESTABLISH - INTERMITTENT

ELECTRODES

Next: End

FAN PRESSURE TEST

SIPHON

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

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 ASSEMBLY

Next: End

FAN VOLTAGE PCB

PCB

Next: End

FAN DOES NOT RUN

CABLE FAN CONNECTOR ASSEMBLY

Next: End

FAN RUNS

FAN ASSEMBLY

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 ASSEMBLY

Next: End

STSLOW THEN TO TO HIGH SPEED

CABLE FAN CONNECTOR ASSEMBLY

Next: End

BELOW 124 VAC

FAN ASSEMBLY

Next: End

INFORMATION FAN PCB REMOVAL

Z DIRECTION

Next: End

FUSE INVESTIGATION - INCOMPATIBLE

FAN ASSEMBLY

Next: End

FURTHER INVESTIGATION FUSE F1

FAN ASSEMBLY

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 ASSEMBLY

Next: End

VOLATILE LOCKOUT STSLOW THEN TO TO HIGH SPEED

CABLE FAN CONNECTOR ASSEMBLY

Next: End

VOLATILE LOCKOUT BELOW 124 VAC

FAN ASSEMBLY

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 ASSEMBLY

Next: End

DOES NOT RUN1 FAULT CODE

FAN ASSEMBLY

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 REDIRECTION

Next: End

DOES NOT ESTABLISH

INLET PRESSURE

Next: End

MAXIMUM OUTPUT INSTRUCTIONS

MAXIMUM OUTPUT INSTRUCTIONS

Next: End

OVERHEAT

SYSTEM PRESSURE

Next: End

OVERHEAT

PUMP ASSEMBLY - 3 SPEED

Next: End

BURNER BAFFLES OUT

SIPHON

Next: End

BURNER BAFFLES OUT

INLET PRESSURE

Next: End

FURTHER INVESTIGATION FUSE F1

CABLE - PUMP

Next: End

FURTHER INVESTIGATION FUSE F1

CABLE FAN CONNECTOR ASSEMBLY

Next: End

SUPPLY FAULT AT POWER UP

Next: End

FURTHER INVESTIGATION FUSED SPUR

Z REDIRECTION

Next: End

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

Z REDIRECTION

Next: End

FAULT CODES

DIRECTION CHOICE OR CONTINUE

Next: End

NO BLUE LED

Z REDIRECTION

Next: End

FURTHER INVESTIGATION

PCB

Next: End

DHW COOL RADIATORS COOLPUMP RUNNING PRE TEST 2

PUMP ASSEMBLY - 3 SPEED

Next: End

FURTHER INVESTIGATION

GAS VALVE

Next: End

BURNER BAFFLES OUT

GAS VALVE

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 RUN 1FAULT CODE

PCB

Next: End

FAN DOES NOT RUNFAULT CODE

HARNESS - MK3 NO ON/OFF

Next: End

OBSERVATION PUMP RUNS

PUMP ASSEMBLY - 3 SPEED

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

OVERHEAT 2

LIMITER - TEMPERATURE

Next: End

OVERHEAT

PCB

Next: End

FLOW SENSOR FAN RUNS 2

HARNESS - MK3 NO ON/OFF

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

FAULT CODE

LIMITER - TEMPERATURE (CORROSION)

Next: End

APS/FLUE/OH OVERHEAT 1

HARNESS - MK3 NO ON/OFF

Next: End

BURNER DOES NOT IGNITE

MEMBRANE

Next: End

BURNER DOES NOT IGNITE

FAN ASSEMBLY

Next: End

BURNER DOES NOT EST

HEAT EXCHANGER ASSEMBLY

Next: End

FLAME SENSE BURNER IGNITES DOES NOT ESTABLISH

PCB

Next: End

FLAME SENSE

PCB

Next: End

SHORTING TO EARTH

ELECTRODES

Next: End

BURNER DOES NOT ESTABLISH

GAS VALVE

Next: End

BAFFLES OUT

MEMBRANE

Next: End

BAFFLES OUT

FAN ASSEMBLY

Next: End

BURNER BAFFLES OUT

HEAT EXCHANGER ASSEMBLY

Next: End

DOES NOT IGNITE - OPEN CIRCUIT

LIMITER - TEMPERATURE (CORROSION)

Next: End

FLUE/OH

HARNESS - MK3 NO ON/OFF

Next: End

DOES NOT IGNITE - HIGH RESIST

LIMITER - TEMPERATURE (CORROSION)

Next: End

BURNER DOES NOT IGNITEAPS/FLUE/OH OVERHEAT 1

HARNESS - MK3 NO ON/OFF

Next: End

VOLTAGE GAS VALVE

PCB

Next: End

BURNER IGNITES 2

HARNESS - MK3 NO ON/OFF

Next: End

NOT IGNITING NO DROP

MEMBRANE

Next: End

NOT IGNITING NO DROP

FAN ASSEMBLY

Next: End

BURNER DOES NOT IGNITE2

HEAT EXCHANGER ASSEMBLY

Next: End

BURNER IGNITES

GAS VALVE

Next: End

NOT IGNITING WITH DROP

MEMBRANE

Next: End

NOT IGNITING WITH DROP

FAN ASSEMBLY

Next: End

BURNER DOES NOT IGNITE

GAS VALVE

Next: End

DHW BURNER IGNITION ESTABLISH - INTERMITTENT NO DROP

MEMBRANE

Next: End

DHW BURNER IGNITION ESTABLISH - INTERMITTENT NO DROP

FAN ASSEMBLY

Next: End

DHW BURNER IGNITION ESTABLISH - INTERMITTENT 2

HEAT EXCHANGER ASSEMBLY

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 ASSEMBLY

Next: End

FAN PRESSURE TEST

MEMBRANE

Next: End

FAN PRESSURE TEST

FAN ASSEMBLY

Next: End

PRIMARY PRE TEST FAN PRESSURE

HEAT EXCHANGER ASSEMBLY

Next: End

FAN DOES NOT RUN - NEW STYLE FAN

PCB

Next: End

DOES NOT RUN - NEW STYLE

FAN ASSEMBLY

Next: End

FAN RUNS - NEW STYLE

FAN ASSEMBLY

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 ASSEMBLY

Next: End

BELOW 124 VAC - NEW STYLE

FAN ASSEMBLY

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 ASSEMBLY

Next: End

VOLATILE LOCKOUT BELOW 124 VAC - NEW STYLE

FAN ASSEMBLY

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 ASSEMBLY

Next: End

VOLATILE LOCKOUT FAN RUNS - NEW STYLE

FAN ASSEMBLY

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

BURNER DOES NOT IGNITE

CHARACTERISTIC TEST FROM OBSERVATION BURNER IGNITION & ESTABLISH

Next: p3529

CO2 SETTINGS INCORRECT

CHARACTERISTIC TEST FROM COMBUSTION ANALYSIS MAX AND MIN

Next: p3007

BURNER DROPS OUT IN MINIMUM MODE

CHARACTERISTIC TEST FROM COMBUSTION ANALYSIS MAX AND MIN

Next: p3010

BLUE LED NOT ILLUMINATED

CHARACTERISTIC TEST FROM POWER UP SELF TEST

Next: p1994

BLUE LED FLASHING (FAULT CODE)

CHARACTERISTIC TEST FROM POWER UP SELF TEST

Next: p2007

BURNER IGNITES SMOOTHLY, BUT DOES NOT ESTABLISH

CHARACTERISTIC TEST FROM OBSERVATION BURNER IGNITION & ESTABLISH

Next: p319

VOLATILE LOCKOUT DISPLAYED WITHIN 10 SECONDS, FAN DOES NOT RUN

CHARACTERISTIC TEST FROM OBSERVATION BLUE LED - FAULT CODE

Next: p3188

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

CHARACTERISTIC TEST FROM OBSERVATION BLUE LED - FAULT CODE

Next: p3818

BOILER NOISY

CHARACTERISTIC TEST FROM OPERATION CH

Next: p3312

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

CHARACTERISTIC TEST FROM OPERATION CH

Next: p3314

EXCESSIVE SYSTEM PRESSURE RISE

CHARACTERISTIC TEST FROM OPERATION CH

Next: p3316

BOILER AND RADIATORS ONLY GET WARM

CHARACTERISTIC TEST FROM OPERATION CH

Next: p3318

TEMPERATURE DIFFERENTIAL INCORRECT LOCAL NOISE

CHARACTERISTIC TEST FROM DIFFERENTIAL FLOW RETURN

Next: !p3346

DIFFERENTIAL OK SYSTEM NOISE

CHARACTERISTIC TEST FROM DIFFERENTIAL FLOW RETURN

Next: !p3348

BOILER DOES NOT RESPOND TO DHW DEMAND

CHARACTERISTIC TEST FROM OPERATION DHW

Next: !p3351

DHW OPERATION UNSATISFACTORY

CHARACTERISTIC TEST FROM OPERATION DHW

Next: !p3353

FLUE STAT CORRODED, DAMAGED AND/OR MOISTURE PRESENT

CHARACTERISTIC TEST FROM RESISTANCE SAFETY CIRCUIT

Next: !p3422

RESISTANCE NOT AS EXPECRED

CHARACTERISTIC TEST FROM RESISTANCE SAFETY CIRCUIT

Next: p3425

FAN MEMBRANE DAMAGED OR WORN

CHARACTERISTIC TEST FROM INSPECTION FAN MEMBRANE

Next: !p3500

FAN STIFF TO TURN OR SEIZED

CHARACTERISTIC TEST FROM INSPECTION FAN MEMBRANE

Next: !p3502

VOLTAGE PRESENT ON TEST 1 BUT DOES NOT DROP OR FLUCTUATES

CHARACTERISTIC TEST FROM RECTIFICATION VOLTAGE

Next: p3508

VOLTAGE ABSENT ON TEST 1

CHARACTERISTIC TEST FROM RECTIFICATION VOLTAGE

Next: p3510

FAN MEMBRANE DAMAGED OR WORN

CHARACTERISTIC TEST FROM INSPECTION FAN MEMBRANE

Next: !p3524

FAN STIFF TO TURN OR SEIZED

CHARACTERISTIC TEST FROM INSPECTION FAN MEMBRANE

Next: !p3526

FLUE STAT CORRODED, DAMAGED, OR MOISTURE PRESENT

CHARACTERISTIC TEST FROM OBSERVATION BLUE LED - FAULT CODE

Next: !p3534

RESISTANCE NOT AS EXPECTED

CHARACTERISTIC TEST FROM OBSERVATION BLUE LED - FAULT CODE

Next: p3536

FLUE STAT CORRODED, DAMAGED, OR MOISTURE PRESENT

CHARACTERISTIC TEST FROM OBSERVATION BLUE LED - FAULT CODE

Next: !p3563

RESISTANCE NOT AS EXPECTED

CHARACTERISTIC TEST FROM OBSERVATION BLUE LED - FAULT CODE

Next: p3565

FAN MEMBRANE DAMAGED OR WORN

CHARACTERISTIC TEST FROM INSPECTION FAN MEMBRANE

Next: !p3589

FAN STIFF TO TURN OR SEIZED

CHARACTERISTIC TEST FROM INSPECTION FAN MEMBRANE

Next: !p3591

FAN MEMBRANE DAMAGED OR WORN

CHARACTERISTIC TEST FROM INSPECTION FAN MEMBRANE

Next: !p3603

FAN STIFF TO TURN OR SEIZED

CHARACTERISTIC TEST FROM INSPECTION FAN MEMBRANE

Next: !p3605

BURNER DOES NOT IGNITE SMOOTHLY / INTERMITTENT IGNITION

CHARACTERISTIC TEST FROM OBSERVATION BURNER IGNITION & ESTABLISH

Next: p3613

FAN MEMBRANE DAMAGED OR WORN

CHARACTERISTIC TEST FROM INSPECTION FAN MEMBRANE

Next: !p3625

FAN STIFF TO TURN OR SEIZED

CHARACTERISTIC TEST FROM INSPECTION FAN MEMBRANE

Next: !p3627

BURNER DROPS OUT IN MINIMUM MODE

CHARACTERISTIC TEST FROM COMBUSTION ANALYSIS MAX AND MIN

Next: p3635

CO2 SETTINGS INCORRECT

CHARACTERISTIC TEST FROM COMBUSTION ANALYSIS MAX AND MIN

Next: p3637

FAN MEMBRANE DAMAGED OR WORN

CHARACTERISTIC TEST FROM INSPECTION FAN MEMBRANE

Next: !p3659

FAN STIFF TO TURN OR SEIZED

CHARACTERISTIC TEST FROM INSPECTION FAN MEMBRANE

Next: !p3661

FAN MEMBRANE DAMAGED OR WORN

CHARACTERISTIC TEST FROM INSPECTION FAN MEMBRANE

Next: !p3672

FAN STIFF TO TURN OR SEIZED

CHARACTERISTIC TEST FROM INSPECTION FAN MEMBRANE

Next: !p3674

240 VOLTS ABSENT BETWEEN PURPLE/BROWN

CHARACTERISTIC TEST FROM VOLTAGE FAN (AT PCB)

Next: !p3694

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

CHARACTERISTIC TEST FROM VOLTAGE FAN (AT PCB)

Next: p3853

240 VOLTS ABSENT BETWEEN PURPLE/BROWN

CHARACTERISTIC TEST FROM VOLTAGE FAN (AT PCB)

Next: !p3706

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

CHARACTERISTIC TEST FROM VOLTAGE FAN (AT PCB)

Next: p3857

VOLTAGE ABOVE 120 VAC

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

Next: p3725

VOLTAGE BETWEEN 110 VAC AND 120 VAC

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

Next: p3727

VOLTAGE ABOVE 140 VAC

CHARACTERISTIC TEST FROM FAN VOLTAGE CONTROL (PCB)

Next: p3737

VOLTAGE BETWEEN 129 VAC AND 140 VAC

CHARACTERISTIC TEST FROM FAN VOLTAGE CONTROL (PCB)

Next: p3739

VOLTAGE ABOVE 120 VAC

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

Next: p3793

VOLTAGE BETWEEN 110 VAC AND 120 VAC

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

Next: p3795

VOLTAGE ABOVE 140 VAC

CHARACTERISTIC TEST FROM FAN VOLTAGE CONTROL (PCB)

Next: p3805

VOLTAGE BETWEEN 129 VAC AND 140 VAC

CHARACTERISTIC TEST FROM FAN VOLTAGE CONTROL (PCB)

Next: p3807

240 VOLTS ABSENT BETWEEN PURPLE/BROWN

CHARACTERISTIC TEST FROM VOLTAGE FAN (AT PCB)

Next: !p3823

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

CHARACTERISTIC TEST FROM VOLTAGE FAN (AT PCB)

Next: p3871

240 VOLTS ABSENT BETWEEN PURPLE/BROWN

CHARACTERISTIC TEST FROM VOLTAGE FAN (AT PCB)

Next: !p3835

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

CHARACTERISTIC TEST FROM VOLTAGE FAN (AT PCB)

Next: p3865

BURNER IGNITES BUT BAFFLES

CHARACTERISTIC TEST FROM OBSERVATION BURNER IGNITION & ESTABLISH

Next: p987

02/03/2022 09:33:35 2203_1_50_1 01/06/2022 12:08:45

17/05/2022 12:08:40

Next: End

RESISTANCE GAS VALVE MAIN AND HARNESS FURTHER INVESTIGATION

DISCONNECT ST9 CONNE

Next: p1076, f1077

RESISTANCE GAS VALVE HARNESS

REMOVE THE CONNECTOR

Next: !p2343, !f2344

RESISTANCE PUMP

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

Next: !p1082, !f1083

RESISTANCE FAN

DISCONNECT FAN CONNECTOR AT FAN

Next: !p1086, f3752

RESISTANCE FUSE (FUSED SPUR)

REMOVE FUSE FROM FUSED SPUR

Next: !p1997, f1998

FUSE FURTHER INVESTIGATION F1

Next: !p1999, !f2000

FUSE FURTHER INVESTIGATION F1

Next: !p2013, !f2014

INSPECTION FLUE

Next: p2990, !f2044

PUMP VOLTAGE

{GAINPCBACS}

Next: p2320, !f2321

INTERNAL FAULT RESET

Next: !p2829, !f2830

INSPECTION CODE PLUG

LOWER THE FACIA PANEL

Next: p3370, !f2897

INSPECTION SEAL INTEGRITY

Next: !p3173, !f3174

OBSERVATION BLUE LED - FAULT CODE

Next: p3788, ?3187, ?3189

RESISTANCE SENSOR TEMP FLOW

DISCONNECT PLUG (RE

Next: !p3206, !f3207

OBSERVATION PUMP RUNS LOCKOUT

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

Next: p3387, f3240

VOLTAGE PUMP AT PCB (LOCKOUT)

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

Next: p3241, !f3242

RESISTANCE OH STAT

DISCONNECT ONE OF THE ORANGE LEADS FROM THE OVERHEAT STAT

Next: !p3361, !f3362

RESISTANCE SENSOR TEMP FLOW

DISCONNECT PLUG (RE

Next: !p3373, !f3374

EXTERNAL CONTROL VOLTAGE (SEND)

Next: !p3390, !f3391

INSPECTION FLUE

Next: p3495, !f3496

INSPECTION HARNESS ELECTRODE SENSE

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

Next: !p3513, !f3514

RESISTANCE SAFETY CIRCUIT

REMOVE ST9 CONNECTOR

Next: p3720, ?3533, ?3535

RESISTANCE SAFETY CIRCUIT

REMOVE ST9 CONNECTOR

Next: p3561, ?3562, ?3564

RESISTANCE GAS VALVE

REMOVE THE TWO CONNECTORS FROM THE GAS VALVE

Next: p3572, !f3573

RESISTANCE GAS VALVE

REMOVE THE TWO CONNECTORS FROM THE GAS VALVE

Next: !p3578, !f3579

INSPECTION FLUE

Next: p3582, !f3583

CONDENSATE PIPE

Next: p3616, !f3617

CONDENSATE PIPE

Next: p3663, !f3664

VOLTAGE FAN (AT PCB) - NEW STYLE

MOVE CONNECTOR ST5 U

Next: p3692, ?3693, ?3695

FAN VOLTAGE CONTROL (PCB) - NEW STYLE

{GAINPCBACS}
MOVE CONNECTOR ST5 TO EXPOSE TERMINALS ON PCB

Next: p3723, ?3724, ?3726

OBSERVATION FAN TYPE

Next: p3753, !f3754

FAN VOLTAGE CONTROL (PCB) - NEW STYLE

{GAINPCBACS}
MOVE CONNECTOR ST5 TO EXPOSE TERMINALS ON PCB

Next: p3791, ?3792, ?3794

VOLTAGE FAN (AT PCB) - NEW STYLE

MOVE CONNECTOR ST5 U

Next: p3821, ?3822, ?3824

BOILER RESET

ENSURE BOILER HAS COOLED

Next: p923, f912

RESISTANCE SAFETY CIRCUIT

REMOVE ST9 CONNECTOR

Next: !p3416, ?3421, ?3423

RESISTANCE PUMP AND HARNESS

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

Next: p1080, f1081

RESISTANCE FAN AND HARNESS

DISCONNECT FAN CONNECTOR ST5 FROM THE PCB

Next: !p2288, f1085

VOLTAGE MAINS POWER INPUT TO APPLIANCE

{GAINPCBACS}

Next: p1995, f1996

FUSE F1

REMOVE CONTROL BOX COVER IF NECESSARY

Next: p2848, f2012

FURTHER INVESTIGATION LED PROBLEM

Next: !p2003, !f2004

FAULT CODES

Next: !p2008, !f2009

PUMP RUNNING

Next: p924, f2319

PUMP HARNESS CONTINUITY

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

Next: !p2322, !f2323

INSPECTION GAS SUPPLY TUBE

Next: p992, !f2571

BURNER INSPECTION

REMOVE FAN/MANIFOLD ASSEMBLY
REMOVE THE BURNER/BAFFLES ASSEMBLY

Next: !p2739, !f2740

OBSERVATION BOILER RESPONDS TO A DEMAND

Next: p2001, !f2852

INSPECTION GAS SUPPLY TUBE

Next: p3521, !f2994

INSPECTION GAS SUPPLY TUBE

Next: !p3009, !f3008

INSPECTION GAS SUPPLY TUBE

Next: !p3011, !f3012

CONDENSATE PIPE

Next: p3490, !f3139

INSPECTION CODE PLUG

LOWER THE FACIA PANEL

Next: p3202, !f3203

INLET PRESSURE

ATTACH PRESSURE GAUGE TO INLET PRESSURE TEST POINT ON GAS VALVE

Next: p3137, !f393

RESISTANCE SENSOR TEMP FLOW AND HARNESS

DISCONNECT CONNECTOR

Next: !p3204, f3205

PUMP HARNESS CONTINUITY

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

Next: !p3243, !f3244

INSPECTION SYSTEM FILLED AND VENTED

Next: p3337, !f3338

INSPECTION SYSTEM FILLED AND VENTED

Next: p3327, !f3328

INSPECTION VESSEL PRESSURE

CLOSE FLOW AND RETURN ISOLATION VALVES
DISCHARGE PRIMARY SYSTEM WATER

Next: !p3325, !f3326

INSPECTION SYSTEM FILLED AND VENTED

Next: p3319, !f3320

PUMP LIMPET TEST

Next: p3321, !f3322

RESISTANCE SENSOR TEMP FLOW

DISCONNECT PLUG (RE

Next: !p3323, !f3324

INSPECTION ISOLATION VALVES FLOW AND RETURN

Next: p3329, !f3330

PUMP LIMPET TEST

Next: p3331, !f3332

BYPASS (INTERNAL)

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

Next: !p3333, !f3334

PUMP LIMPET TEST

Next: p3339, !f3340

PRIMARY SENSOR (HIGH FLAME)

DISCONNECT PLUG (RE

Next: p3341, !f3342

DIFFERENTIAL FLOW RETURN

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

Next: !p3343, ?3345, ?3347

DIFFERENTIAL PRIMARY HEAT EXCHANGER

CH TEMPERATURE CONTR

Next: p3357, !f3358

RUN BOILER TO MAX TEMP-DOES OVERHEAT OCCUR

ATTACH TEMPERATURE CLAMP TO FLOW PIPE
CH TEMPERATURE CONTROL TO MAX

Next: p3359, f3360

COOL APPLIANCE

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

Next: p3363, !f3364

PRIMARY SENSOR (HIGH FLAME)

DISCONNECT PLUG (RE

Next: !p3365, !f3366

RESISTANCE SENSOR TEMP FLOW AND HARNESS

DISCONNECT CONNECTOR

Next: p3689, f3372

EXTERNAL CONTROLS VOLTAGE (RETURN)

{GAINPCBACS}
EXTERNAL CONTROLS CALLING FOR HEAT

Next: !p3388, f3389

RESISTANCE OH STAT

DISCONNECT ONE OF THE ORANGE LEADS FROM THE OVERHEAT STAT

Next: p3426, !f3427

RESISTANCE FLUE OH STAT

DISCONNECT ONE OF THE ORANGE LEADS FROM THE OVERHEAT STAT

Next: !p3428, !f3429

INSPECTION GAS SUPPLY TUBE

Next: p3491, !f3492

FAN PRESSURE TEST (IGNITION)

ATTACH PRESSURE GAUGE TO FAN PRESSURE TEST POINT

Next: p3493, f3494

RECTIFICATION VOLTAGE

{GAINPCBACS}

Next: !p3505, ?3507, ?3509

INSPECTION FAN MEMBRANE

REMOVE FAN ASSEMBLY FROM APPLIANCE

Next: p3497, ?3499, ?3501

BURNER INSPECTION

REMOVE FAN/MANIFOLD ASSEMBLY
REMOVE THE BURNER/BAFFLES ASSEMBLY

Next: !p3503, !f3504

ELECTRODE SENSE HARNESS

DISCONNECT FLAME SEN

Next: p3515, !f3516

RESISTANCE HARNESS ELECTRODE SENSE TO EARTH

DISCONNECT CONNECTER

Next: !p3511, f3512

ELECTRODE SENSE

REMOVE THE ELECTRODE ASSEMBLY

Next: p3517, !f3518

BURNER INSPECTION

REMOVE FAN/MANIFOLD ASSEMBLY
REMOVE THE BURNER/BAFFLES ASSEMBLY

Next: !p3519, !f3520

INSPECTION FAN MEMBRANE

REMOVE FAN ASSEMBLY FROM APPLIANCE

Next: p3522, ?3523, ?3525

BURNER INSPECTION

REMOVE FAN/MANIFOLD ASSEMBLY
REMOVE THE BURNER/BAFFLES ASSEMBLY

Next: !p3527, !f3528

SPARKING PRESENT TEST

REMOVE SPARK LEADS F

Next: p3530, f3531

CONDENSATE PIPE

Next: p3555, !f3556

RESISTANCE OH STAT

DISCONNECT ONE OF THE ORANGE LEADS FROM THE OVERHEAT STAT

Next: p3537, !f3538

RESISTANCE FLUE OH STAT

DISCONNECT ONE OF THE ORANGE LEADS FROM THE OVERHEAT STAT

Next: !p3539, !f3540

INLET PRESSURE

ATTACH PRESSURE GAUGE TO INLET PRESSURE TEST POINT ON GAS VALVE

Next: p3557, !f3558

PRESSURE GAS INLET DROP

ATTACH PRESSURE GAUGE TO INLET PRESSURE TEST POINT ON GAS VALVE

Next: p3559, f3560

ELECTRODE SPARK HARNESS

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

Next: p3596, !f3597

VOLTAGE GAS VALVE AT PCB

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

Next: p3570, f3571

RESISTANCE OH STAT

DISCONNECT ONE OF THE ORANGE LEADS FROM THE OVERHEAT STAT

Next: p3566, !f3567

RESISTANCE FLUE OH STAT

DISCONNECT ONE OF THE ORANGE LEADS FROM THE OVERHEAT STAT

Next: !p3568, !f3569

RESISTANCE GAS VALVE SOLENOID MAIN AND HARNESS

DISCONNECT ST9 CONNE

Next: p3576, f3577

RESISTANCE GAS VALVE HARNESS

REMOVE THE CONNECTOR

Next: !p3574, !f3575

FAN PRESSURE TEST (IGNITION)

ATTACH PRESSURE GAUGE TO FAN PRESSURE TEST POINT

Next: p3580, f3581

INSPECTION GAS SUPPLY TUBE

Next: !p3594, !f3595

INSPECTION GAS SUPPLY TUBE

Next: p3584, !f3585

INSPECTION FAN MEMBRANE

REMOVE FAN ASSEMBLY FROM APPLIANCE

Next: p3586, ?3588, ?3590

BURNER INSPECTION

REMOVE FAN/MANIFOLD ASSEMBLY
REMOVE THE BURNER/BAFFLES ASSEMBLY

Next: !p3592, !f3593

INSPECTION GAS SUPPLY TUBE

Next: p3598, !f3599

INSPECTION FAN MEMBRANE

REMOVE FAN ASSEMBLY FROM APPLIANCE

Next: p3600, ?3602, ?3604

INSPECTION SPARK ELECTRODE

REMOVE THE ELECTRODE ASSEMBLY

Next: p3606, !f3607

BURNER INSPECTION

REMOVE FAN/MANIFOLD ASSEMBLY
REMOVE THE BURNER/BAFFLES ASSEMBLY

Next: p3608, !f3609

INSPECTION HEAT EXCHANGER

REMOVE FAN/MANIFOLD

Next: !p3610, !f3611

FAN PRESSURE TEST

ATTACH PRESSURE GAUGE TO FAN PRESSURE TEST POINT

Next: p3614, f3615

INLET PRESSURE

ATTACH PRESSURE GAUGE TO INLET PRESSURE TEST POINT ON GAS VALVE

Next: p3630, !f3631

INSPECTION FLUE

Next: p3618, !f3619

INSPECTION GAS SUPPLY TUBE

Next: p3620, !f3621

INSPECTION FAN MEMBRANE

REMOVE FAN ASSEMBLY FROM APPLIANCE

Next: p3622, ?3624, ?3626

BURNER INSPECTION

REMOVE FAN/MANIFOLD ASSEMBLY
REMOVE THE BURNER/BAFFLES ASSEMBLY

Next: !p3628, !f3629

COMBUSTION ANALYSIS MAX AND MIN

Next: p3632, ?3634, ?3636

SPARKING PRESENT TEST

REMOVE SPARK LEADS F

Next: p3642, !f3643

INSPECTION GAS SUPPLY TUBE

Next: !p3640, !f3641

INSPECTION GAS SUPPLY TUBE

Next: !p3638, !f3639

CONDENSATE PIPE

Next: p3644, !f3645

INSPECTION FLUE OH STAT

Next: p3646, !f3647

INSPECTION GAS SUPPLY TUBE

Next: p3648, !f3649

ELECTRODE SENSE HARNESS

DISCONNECT FLAME SEN

Next: p3650, !f3651

ELECTRODE SPARK HARNESS

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

Next: p3652, !f3653

INSPECTION ELECTRODES

REMOVE THE ELECTRODE ASSEMBLY

Next: p3654, !f3655

INSPECTION FAN MEMBRANE

REMOVE FAN ASSEMBLY FROM APPLIANCE

Next: !p3656, ?3658, ?3660

INSPECTION FLUE

Next: p3665, !f3666

INSPECTION GAS SUPPLY TUBE

Next: p3667, !f3668

INSPECTION FAN MEMBRANE

REMOVE FAN ASSEMBLY FROM APPLIANCE

Next: p3669, ?3671, ?3673

BURNER INSPECTION

REMOVE FAN/MANIFOLD ASSEMBLY
REMOVE THE BURNER/BAFFLES ASSEMBLY

Next: !p3675, !f3676

OBSERVATION FAN TYPE

Next: p3690, f3691

VOLTAGE FAN (AT PCB)

MOVE CONNECTOR ST5 U

Next: p3703, ?3705, ?3707

VOLTAGE FAN (PCB DEMAND)

DISCONNECT ELECTRICA

Next: p3699, !f3700

RESISTANCE FAN HARNESS

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

Next: !p3697, !f3698

RESISTANCE FAN HARNESS

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

Next: !p3701, !f3702

VOLTAGE FAN (PCB DEMAND)

DISCONNECT ELECTRICA

Next: p3713, !f3714

RESISTANCE FAN HARNESS

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

Next: p3709, !f3710

INSPECTION FAN

REMOVE PCB FROM FAN ASSEMBLY (FOR INSTRUCTIONS CLICK HERE)

Next: !p3711, !f3712

RESISTANCE FAN HARNESS

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

Next: p3715, !f3716

INSPECTION FAN

REMOVE PCB FROM FAN ASSEMBLY (FOR INSTRUCTIONS CLICK HERE)

Next: !p3717, !f3718

OBSERVATION FAN TYPE

Next: p3721, f3722

FAN VOLTAGE CONTROL (PCB)

{GAINPCBACS}
MOVE CONNECTOR ST5 TO EXPOSE TERMINALS ON PCB

Next: p3734, ?3736, ?3738

RESISTANCE FAN HARNESS

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

Next: !p3732, !f3733

RESISTANCE FAN HARNESS

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

Next: !p3730, !f3731

RESISTANCE FAN HARNESS

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

Next: !p3728, !f3729

RESISTANCE FAN HARNESS

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

Next: p3746, !f3747

RESISTANCE FAN HARNESS

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

Next: p3742, !f3743

RESISTANCE FAN HARNESS

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

Next: !p3740, !f3741

INSPECTION FAN

REMOVE PCB FROM FAN ASSEMBLY (FOR INSTRUCTIONS CLICK HERE)

Next: !p3744, !f3745

INSPECTION FAN

REMOVE PCB FROM FAN ASSEMBLY (FOR INSTRUCTIONS CLICK HERE)

Next: !p3748, !f3749

INSPECTION FAN

REMOVE PCB FROM FAN ASSEMBLY (FOR INSTRUCTIONS CLICK HERE)

Next: !p3755, !f3756

OBSERVATION FAN TYPE

Next: p3789, f3790

FAN VOLTAGE CONTROL (PCB)

{GAINPCBACS}
MOVE CONNECTOR ST5 TO EXPOSE TERMINALS ON PCB

Next: p3802, ?3804, ?3806

RESISTANCE FAN HARNESS

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

Next: !p3800, !f3801

RESISTANCE FAN HARNESS

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

Next: !p3798, !f3799

RESISTANCE FAN HARNESS

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

Next: !p3796, !f3797

RESISTANCE FAN HARNESS

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

Next: p3814, !f3815

RESISTANCE FAN HARNESS

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

Next: p3810, !f3811

RESISTANCE FAN HARNESS

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

Next: !p3808, !f3809

INSPECTION FAN

REMOVE PCB FROM FAN ASSEMBLY (FOR INSTRUCTIONS CLICK HERE)

Next: !p3812, !f3813

INSPECTION FAN

REMOVE PCB FROM FAN ASSEMBLY (FOR INSTRUCTIONS CLICK HERE)

Next: !p3816, !f3817

OBSERVATION FAN TYPE

Next: p3819, f3820

VOLTAGE FAN (AT PCB)

MOVE CONNECTOR ST5 U

Next: p3832, ?3834, ?3836

VOLTAGE FAN (PCB DEMAND)

DISCONNECT ELECTRICA

Next: p3828, !f3829

RESISTANCE FAN HARNESS

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

Next: !p3826, !f3827

RESISTANCE FAN HARNESS

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

Next: !p3830, !f3831

VOLTAGE FAN (PCB DEMAND)

DISCONNECT ELECTRICA

Next: p3844, !f3845

RESISTANCE FAN HARNESS

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

Next: p3850, !f3839

RESISTANCE FAN HARNESS

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

Next: p3846, !f3847

INSPECTION FAN

REMOVE PCB FROM FAN ASSEMBLY (FOR INSTRUCTIONS CLICK HERE)

Next: !p3848, !f3849

INSPECTION FAN

REMOVE PCB FROM FAN ASSEMBLY (FOR INSTRUCTIONS CLICK HERE)

Next: !p3851, !f3852

VOLTAGE MAINS GND PWM AND HALL

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

Next: p3696, !f3864

VOLTAGE MAINS GND PWM AND HALL

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

Next: p3708, !f3863

VOLTAGE MAINS GND PWM AND HALL

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

Next: p3837, !f3875

VOLTAGE MAINS GND PWM AND HALL

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

Next: p3825, !f3876

INSPECTION SYSTEM FILLED AND VENTED

Next: p2307, !f925

PUMP LIMPET TEST

Next: p3356, !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: p2567, f2042

INSPECTION FLUE

Next: p2738, !f1011

System Information

Total Tests: 494

Sequence Logic: Decoded from encrypted .seq file

Navigation: Dynamic based on pass/fail results

Source: 4731307 GW SWIFTFLOW 100 SIT Control