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:

HALSTEAD CBX 38 LPG

47 260 15
1.

Next: &1, *

APPLIANCE APPEARS SATISFACTORY

Next: nff

HALSTEAD CBX 38 LPG

{ISOLATEMAINSPOWER}<

Next: &3, !f2

APPLIANCE INFORMATION

Next: &500, !f4

DHW FLOW RATE

Next: &19, f6

SELF CHECK SEQUENCE

DHW SELECTOR IN MAXI

Next: &42, ?20, ?22, ?24

DHW FAN RUNS AFTER SELF CHECK

DHW SELECTOR IN MAXI

Next: &429, f183

CH OPERATION

Next: &179, ?153, ?155, ?264

EXCESSIVE SYSTEM PRESSURE RISE

Next: &181, !f180

PUMP OVERRUN

Next: &nff, !f182

CH DEMAND

Next: &288, f254

DHW OPERATION

Next: &152, ?289, ?291, ?293

COMBUSTION TEST

{ISOLATEMAINSPOWER}<

Next: &253, f370

FURTHER INVESTIGATION GAS VALVE LEAD

INTENTIONALLY BLANK

Next: &nff, f404

SETTING MULTIMETER TO DIODE MODE

INTENTIONALLY BLANK

Next: &nff, f401

DHW BURNER IGNITES AND ESTABLISHES (GAS PRESSURE)

{ISOLATEMAINSPOWER}<

Next: &369, ?430, ?432, ?434, ?436, ?476

TYPE OF DIAGNOSTIC PROCEDURE

Next: &5, !f501

LITE DIAGNOSTIC

DIAGNOSIS RELIES ON

Next: &nff, !f503

QUICK ACCESS DATA AND INFORMATION

THE TABLE BELOW SHOW

Next: &nff, !f505

HEADER FOR QADAI FLOW SENSOR RESISTANCE

INTENTIONALLY BLANK - HEADER FOR QADA

Next: &nff, f507

HEADER FOR QADAI RETURN SENSOR RESISTANCE

INTENTIONALLY BLANK - HEADER FOR QADA

Next: &nff, f511

HEADER FOR QADAI FLUE SENSOR RESISTANCE

INTENTIONALLY BLANK - HEADER FOR QADA

Next: &nff, f515

HEADER FOR QADAI GAS VALVE RESISTANCE

INTENTIONALLY BLANK - HEADER FOR QADA

Next: &nff, f519

HEADER FOR QADAI GAS VALVE VOLTAGE

INTENTIONALLY BLANK - HEADER FOR QADA

Next: &nff, f523

HEADER FOR QADAI SPARK GENERATOR VOLTAGE

INTENTIONALLY BLANK - HEADER FOR QADA

Next: &nff, f527

HEADER FOR QADAI PUMP VOLTAGE

INTENTIONALLY BLANK - HEADER FOR QADA

Next: &nff, f531

HEADER FOR QADAI DIVERTER VALVE RESISTANCE

INTENTIONALLY BLANK - HEADER FOR QADA

Next: &nff, f535

HEADER FOR QADAI DHW TURBINE VOLTAGE

INTENTIONALLY BLANK - HEADER FOR QADA

Next: &nff, f539

BOILER HEATS BUT RADS COLD

VALVE - DIVERTED - MOTORISED HEAD

Next: End

CH OPERATION (BOILER HEATS RADS COLD)

PUMP 15/60

Next: End

CH OPERATION

SENSOR 18MM - WATER TEMPERATURE

Next: End

CH OPERATION

SENSOR - FLUE

Next: End

CH OPERATION

SENSOR 18MM - WATER TEMPERATURE

Next: End

CH OPERATION (CH NOISY)

PUMP 15/60

Next: End

FLOW RATE

CH FILTER - PLATE HEAT EXCHANGER

Next: End

SYSTEM PRESSURE RISE

VESSEL 8 LITRE - EXPANSION

Next: End

PUMP OVERRUN

PCB AND BOX ASSEMBLY

Next: End

TURBINE

PCB AND BOX ASSEMBLY

Next: End

TURBINE

HARNESS - LOW VOLTAGE

Next: End

FAN RUNS

SENSOR 18MM - WATER TEMPERATURE

Next: End

FAN RUNS

SENSOR 18MM - WATER TEMPERATURE

Next: End

ELECTRICAL SAFETY CHECKS

ELECTRICAL SAFETY

Next: End

FAN RUNS

SENSOR - FLUE

Next: End

LOCKOUT RESET (FAN RUNS)

PCB AND BOX ASSEMBLY

Next: End

CH OPERATION

EXTERNAL (LINK) CONTROLS

Next: End

CLOCK

PCB AND BOX ASSEMBLY

Next: End

DHW PUMP RUNS

FUSE 4 AMP 5 X 20 CERAMIC

Next: End

CH OPERATION BOILER COOL RADS COOL

SENSOR 18MM - WATER TEMPERATURE

Next: End

CH OPERATION BOILER COOL RADS COOL

SENSOR - FLUE

Next: End

CH OPERATIONBOILER COOL RADS COOL

SENSOR 18MM - WATER TEMPERATURE

Next: End

DHW PUMP RUNS

Next: End

DHW OPERATION (EFFICIENCY)

PUMP 15/60

Next: End

DHW OPERATION

HEAT EXCHANGER - PRIMARY

Next: End

FAN POWER

PCB AND BOX ASSEMBLY

Next: End

DHW OPERATION

VALVE - DIVERTED - MOTORISED HEAD

Next: End

DV

HARNESS - HIGH VOLTAGE

Next: End

FAN CONTROL

PCB AND BOX ASSEMBLY

Next: End

FAN

HARNESS - HIGH VOLTAGE

Next: End

MODULATION (DHW OPERATION)

PCB AND BOX ASSEMBLY

Next: End

DHW OPERATION (MODULATION)

GAS INLET SUPPLY

Next: End

DHW OPERATION

PUMP 15/60

Next: End

DHW OPERATION

SENSOR 18MM - WATER TEMPERATURE

Next: End

DHW OPERATION

SENSOR - FLUE

Next: End

DHW OPERATION

SENSOR 18MM - WATER TEMPERATURE

Next: End

FAN CONTROL

HARNESS - LOW VOLTAGE

Next: End

COMBUSTION TEST

BURNER

Next: End

COMBUSTION TEST

HEAT EXCHANGER - PRIMARY

Next: End

SYSTEM CHECKS

SYSTEM CHECKS

Next: End

MULTIMETER DIDOE MODE

Z DIRECTION

Next: End

DHW PUMP RUNS

PCB AND BOX ASSEMBLY

Next: End

FURTHER INVESTIGATION

LEAD - GAS VALVE

Next: End

BLANK FOR GAIN ACCESS PAGE

Z DIRECTION

Next: End

BRIDGE RECTIFIER AND RESISTOR

LEAD - GAS VALVE

Next: End

COMBUSTION TEST

FLUE

Next: End

DHW BURNER ESTABLISHED (FLAME SENSE)

IONISATION ELECTRODE AND GASKET

Next: End

DHW BURNER ESTABLISHED (FLAME SENSE)

PCB AND BOX ASSEMBLY

Next: End

FLAME SENSE

HARNESS - HIGH VOLTAGE

Next: End

BURNER IGNITES (ESTABLISH)

CONDENSATE ASSEMBLY

Next: End

DHW SPARKING

FLUE

Next: End

IGNITION

PCB AND BOX ASSEMBLY

Next: End

IGNITION

HARNESS - HIGH VOLTAGE

Next: End

DHW SPARKING

KIT - IGNITION ELECTRODE

Next: End

BURNER IGNITES (NO IGNITION)

CONDENSATE ASSEMBLY

Next: End

BURNER IGNITES (NO IGNITION)

FLUE

Next: End

GASVALVE VOLTAGE BURNER IGNITES

PCB AND BOX ASSEMBLY

Next: End

DHW BURNER IGNITES (ELECTRICAL)

GAS CONTROL VALVE ASSEMBLY

Next: End

DHW OPERATION

FLUE

Next: End

DHW OPERATION

CONDENSATE ASSEMBLY

Next: End

BURNER BAFFLES OUT

BURNER

Next: End

BURNER BAFFLES OUT

HEAT EXCHANGER - PRIMARY

Next: End

FOR TYPE DIAGNOSTIC PROCEDURE

Z DIRECTION

Next: End

BLANK FOR LITE DIAGNOSTIC

Z DIRECTION

Next: End

BLANK FOR QADAI

Z DIRECTION

Next: End

QADAI

SENSOR 18MM - WATER TEMPERATURE

Next: End

QADAI

SENSOR 18MM - WATER TEMPERATURE

Next: End

QADAI

SENSOR - FLUE

Next: End

QADAI

GAS CONTROL VALVE ASSEMBLY

Next: End

QADAI

PCB AND BOX ASSEMBLY

Next: End

QADAI SPARK GEN VOLTAGE ABSENT

PCB AND BOX ASSEMBLY

Next: End

QADAI PUMP VOLTS ABSENT

PCB AND BOX ASSEMBLY

Next: End

QADAI

VALVE - DIVERTED - MOTORISED HEAD

Next: End

QADAI TURBINE VOLTS INCORRECT

PCB AND BOX ASSEMBLY

Next: End

POOR HW

CH FILTER - PLATE HEAT EXCHANGER

Next: End

DHW COLD RADIATORS COLD

HEAT EXCHANGER - PRIMARY

Next: End

DHW FLOW RATE

VALVE - DHW COLD INLET

Next: End

DHW FLOW RATE

FILTER - CONICAL - MAINS INLET

Next: End

DHW FLOW FLOW RATE

REGULATOR 16 LITRE - FLOW

Next: End

DHW FLOW RATE

TURBINE - FLOW

Next: End

BOILER HEATS BUT RADS COLD

HYDROBLOCK PUMP ASSEMBLY (DIVERTER VALVE)

Next: End

DV CH

PCB AND BOX ASSEMBLY

Next: End

SCALED

HEAT EXCHANGER 20 PLATE

Next: End

BOILER HEATS BUT RADS COLD

Next: End

CH NOISY DHW OKAY

Next: End

DHW BURNER IGNITES

TURBINE - FLOW

Next: End

FLOW SENSOR FAN RUNS

HARNESS - LOW VOLTAGE

Next: End

RETURN SENSOR FAN RUNS

HARNESS - LOW VOLTAGE

Next: End

FLUE SENSOR FAN RUNS

HARNESS - LOW VOLTAGE

Next: End

DHW FAN RUNS

LOCKOUT

Next: End

EXTERNAL CONTROLS OUTPUT

Next: End

EXTERNAL CONTROLS

Next: End

SELF CHECK

PCB AND BOX ASSEMBLY

Next: End

TEMP CONTROL BOILER COOL RADS COOL

PCB AND BOX ASSEMBLY

Next: End

DHW NOISY OPERATION KETTLES

HEAT EXCHANGER 20 PLATE

Next: End

DHW OPERATION

HYDROBLOCK PUMP ASSEMBLY (DIVERTER VALVE)

Next: End

DV MOTOR OPERATION DHW

PCB AND BOX ASSEMBLY

Next: End

FAN SPEED (DHW OPERATION)

FAN ASSEMBLY

Next: End

DHW MOD (SLOW)

FAN ASSEMBLY

Next: End

MODULATION PRESSURE (DHW OPERATION)

GAS CONTROL VALVE ASSEMBLY

Next: End

DHW FAN RUNS

FAN ASSEMBLY

Next: End

DHW OPERATION

PCB AND BOX ASSEMBLY

Next: End

DHW PUMP RUNS

PUMP 15/60

Next: End

PUMP

HARNESS - HIGH VOLTAGE

Next: End

MULTIMETER DIODE SETTING

Z DIRECTION

Next: End

BRIDGE RECTIFIER AND RESISTOR

GAS CONTROL VALVE ASSEMBLY

Next: End

COMBUSTION TEST

GAS VALVE ADJUSTMENT

Next: End

DHW BURNER IGNITES

INLET PRESSURE

Next: End

DHW BURNER IGNITES

BURNER

Next: End

DHW SPARKING

SPARK GENERATOR C/W LEAD

Next: End

DHW BURNER IGNITES(NO IGNITION)

BURNER

Next: End

GAS PRESSURES INCORRECT

GAS VALVE LEAD AND GAS VALVE

Next: End

BURNER BAFFLES OUT

GAS CONTROL VALVE ASSEMBLY

Next: End

FLOW SENSOR

RESULT AS EXPECTED

Next: End

RETURN SENSOR

RESULT AS EXPECTED

Next: End

FLUE SENSOR

RESULT AS EXPECTED

Next: End

GAS VALVE RESISTANCE

RESULT AS EXPECTED

Next: End

GAS VALVE VOLTAGE

RESULT AS EXPECTED

Next: End

SPARK GENERATOR

RESULT AS EXPECTED

Next: End

PUMP

RESULT AS EXPECTED

Next: End

DIVERTER VALVE

RESULT AS EXPECTED

Next: End

DHW TURBINE

RESULT AS EXPECTED

Next: End

DHW COLD RADIATORS COLD

HEAT EXCHANGER 20 PLATE

Next: End

DHW INLET FILTER BLOCKED

CHARACTERISTIC TEST FROM FLOW LIMITER AND DHW FILTER

Next: !p12

FLOW LIMITER BLOCKED

CHARACTERISTIC TEST FROM FLOW LIMITER AND DHW FILTER

Next: !p14

TURBINE FAULT

CHARACTERISTIC TEST FROM FLOW LIMITER AND DHW FILTER

Next: !p16

CH NOISY, DHW OK

CHARACTERISTIC TEST FROM CENTRAL HEATING OPERATION

Next: p154

BOILER HEATS, BUT RADS COLD

CHARACTERISTIC TEST FROM CENTRAL HEATING OPERATION

Next: p156

PUMP DOES NOT RUN

CHARACTERISTIC TEST FROM SELF CHECK

Next: p21

FAN DOES NOT RUN

CHARACTERISTIC TEST FROM SELF CHECK

Next: p23

NEITHER FAN NOR PUMP RUNS

CHARACTERISTIC TEST FROM SELF CHECK

Next: p25

BOILER COOL RADS COOL

CHARACTERISTIC TEST FROM CENTRAL HEATING OPERATION

Next: p276

DHW COLD, RADIATORS COLD

CHARACTERISTIC TEST FROM DHW OPERATION

Next: p346

DHW COLD, RADIATORS HOT

CHARACTERISTIC TEST FROM DHW OPERATION

Next: p292

DHW NOISY OPERATION, KETTLES

CHARACTERISTIC TEST FROM DHW OPERATION

Next: p294

DROP IN PRESSURE OBSERVED BUT BURNER DOES NOT IGNITE

CHARACTERISTIC TEST FROM DHW BURNER IGNITES AND ESTABLISHES (GAS PRESSURE)

Next: p431

BURNER IGNITES BUT DOES NOT ESTABLISH

CHARACTERISTIC TEST FROM DHW BURNER IGNITES AND ESTABLISHES (GAS PRESSURE)

Next: p433

NO DROP IN PRESSURE OBSERVED

CHARACTERISTIC TEST FROM DHW BURNER IGNITES AND ESTABLISHES (GAS PRESSURE)

Next: p485

INLET PRESSURE LOW OR DROPS AWAY

CHARACTERISTIC TEST FROM DHW BURNER IGNITES AND ESTABLISHES (GAS PRESSURE)

Next: !p437

BURNER BAFFLES OUT

CHARACTERISTIC TEST FROM DHW BURNER IGNITES AND ESTABLISHES (GAS PRESSURE)

Next: p490

11/01/2023 09:07:39 2301_1_50_1 28/02/2023 13:55:15

27/01/2023 13:25:19

Next: End

DIVERTER VALVE ACTUATOR OPERATION

{ISOLATEMAINSPOWER}<

Next: !p165, f166

DIVERTER VALVE ACTUATOR RESISTANCE

{ISOLATEMAINSPOWER}<

Next: !p167, !f168

TURBINE RETURN VOLTAGE

{ISOLATEMAINSPOWER}<

Next: p184, f185

PCB TURBINE VOLTAGE

{ISOLATEMAINSPOWER}<

Next: p186, !f187

FLOW SENSOR RESISTANCE

{ISOLATEMAINSPOWER}
REMOVE THE LEAD FROM THE FLOW SENSOR

Next: !p192, !f193

RETURN SENSOR RESISTANCE

{ISOLATEMAINSPOWER}
REMOVE THE LEAD FROM THE RETURN SENSOR

Next: !p196, !f197

FLUE SENSOR RESISTANCE

{ISOLATEMAINSPOWER}
DISCONNECT THE GREY LEADS FROM THE FLUE TEMPERATURE THERMOSTAT

Next: !p200, !f201

EXTERNAL CONTROLS INPUT

{ISOLATEMAINSPOWER}<

Next: p255, f261

CLOCK CONTROL INPUT

Next: !p262, !f263

DIVERTER VALVE ACTUATOR RESISTANCE

{ISOLATEMAINSPOWER}<

Next: p309, !f310

FAN SPEED

Next: p349, f350

PCB FAN VOLTAGE (MODULATION)

Next: !p351, f352

PCB FAN VOLTAGE (CONTROL)

{ISOLATEMAINSPOWER}<

Next: !p353, !f354

DIFFERENTIAL PRIMARY HEAT EXCHANGER

{ISOLATEMAINSPOWER}<

Next: p543, !f546

BURNER INSPECTION

{ISOLATEMAINSPOWER}
GAIN ACCESS TO THE BURNER ASSEMBLY

Next: p371, !f372

PCB PUMP VOLTS

{ISOLATEMAINSPOWER}<

Next: !p40, !f41

HOW TO SWITCH THE MULTIMETER TO DIODE SETTING

Next: !p402, !f403

VOLTAGE TEST AT GAS VALVE LEAD

{ISOLATEMAINSPOWER}<

Next: p410, !f417

PCB VOLTS TO SPARK GENERATOR

Next: !p458, !f459

FLOW SENSOR RESISTANCE

{ISOLATEMAINSPOWER}
REMOVE THE LEAD FROM THE FLOW SENSOR

Next: !p508, !f509

RETURN SENSOR RESISTANCE

{ISOLATEMAINSPOWER}
REMOVE THE LEAD FROM THE RETURN SENSOR

Next: !p512, !f513

FLUE SENSOR RESISTANCE

{ISOLATEMAINSPOWER}
DISCONNECT THE GREY LEADS FROM THE FLUE TEMPERATURE THERMOSTAT

Next: !p516, !f517

MAIN GAS VALVE SOLENOID RESISTANCE

{ISOLATEMAINSPOWER}
REMOVE THE PLUG FROM THE GAS VALVE

Next: !p520, !f521

VOLTS TO GAS VALVE AT PCB

{ISOLATEMAINSPOWER}<

Next: !p524, !f525

VOLTS TO SPARK GENERATOR AT PCB

{ISOLATEMAINSPOWER}<

Next: !p528, !f529

PCB PUMP VOLTS

{ISOLATEMAINSPOWER}<

Next: !p532, !f533

DIVERTER VALVE ACTUATOR RESISTANCE

{ISOLATEMAINSPOWER}<

Next: !p536, !f537

PCB TURBINE VOLTAGE

{ISOLATEMAINSPOWER}<

Next: !p540, !f541

DHW ISOLATING VALVE

{ISOLATEMAINSPOWER}

Next: p7, !f8

PUMP RUNS (LIMPET TEST)

Next: !p177, !f178

DIVERTER VALVE OPERATION (CH)

ENSURE DHW HEAT EXCHANGER IS COOL

Next: p163, f164

PUMP RUNS (LIMPET TEST)

Next: p169, !f170

FLOW SENSOR RESISTANCE

{ISOLATEMAINSPOWER}
REMOVE THE LEAD FROM THE FLOW SENSOR

Next: p171, !f172

FLUE SENSOR RESISTANCE

{ISOLATEMAINSPOWER}
DISCONNECT THE GREY LEADS FROM THE FLUE TEMPERATURE THERMOSTAT

Next: p173, !f174

RETURN SENSOR RESISTANCE

{ISOLATEMAINSPOWER}
REMOVE THE LEAD FROM THE RETURN SENSOR

Next: !p175, !f176

HARNESS & FLOW SENSOR RESISTANCE

{ISOLATEMAINSPOWER}
REMOVE THE PLUG X6 FROM THE CONTROL BOX

Next: p190, f191

TURBINE HARNESS RESISTANCE

{ISOLATEMAINSPOWER}<

Next: !p188, !f189

HARNESS & RETURN SENSOR RESISTANCE

{ISOLATEMAINSPOWER}
REMOVE THE PLUG X6 FROM THE CONTROL BOX

Next: p194, f195

HARNESS & FLUE SENSOR RESISTANCE

{ISOLATEMAINSPOWER}
REMOVE THE PLUG X8 FROM THE CONTROL BOX

Next: p203, f199

LOCKOUT RESET

Next: !p205, !f204

PUMP VOLTAGE

DHW SELECTOR IN MAXI

Next: !p38, f39

PCB FAN VOLTAGE (POWER)

{ISOLATEMAINSPOWER}<

Next: p30, !f31

FUSE (4 AMP)

{ISOLATEMAINSPOWER}<

Next: p26, !f27

EXTERNAL CONTROLS OUTPUT

ENSURE THE EXTERNAL

Next: !p259, !f260

MAINS POWER SUPPLY

Next: !p28, !f29

FLOW SENSOR RESISTANCE

{ISOLATEMAINSPOWER}
REMOVE THE LEAD FROM THE FLOW SENSOR

Next: p277, !f278

FLUE SENSOR RESISTANCE

{ISOLATEMAINSPOWER}
DISCONNECT THE GREY LEADS FROM THE FLUE TEMPERATURE THERMOSTAT

Next: p279, !f280

RETURN SENSOR RESISTANCE

{ISOLATEMAINSPOWER}
REMOVE THE LEAD FROM THE RETURN SENSOR

Next: !p281, !f282

DIVERTER VALVE ACTUATOR OPERATION

{ISOLATEMAINSPOWER}<

Next: !p307, f308

PUMP RUNS (LIMPET TEST)

Next: p303, !f304

PCB FAN VOLTAGE (CONTROL)

{ISOLATEMAINSPOWER}<

Next: p32, !f33

CH OPERATION

Next: !p305, !f306

DIVERTER VALVE HARNESS RESISTANCE

{ISOLATEMAINSPOWER}<

Next: !p311, !f312

FAN HARNESS RESISTANCE (POWER)

{ISOLATEMAINSPOWER}<

Next: p34, !f35

FAN HARNESS RESISTANCE (CONTROL)

{ISOLATEMAINSPOWER}<

Next: !p36, !f37

MODULATION PRESSURE

{ISOLATEMAINSPOWER}<

Next: p347, f348

PUMP RUNS (LIMPET TEST)

Next: p357, !f358

GAS INLET PRESSURE

{ISOLATEMAINSPOWER}<

Next: !p355, !f356

DIFFERENTIAL SECONDARY HEAT EXCHANGER

{ISOLATEMAINSPOWER}<

Next: p359, f360

FLOW SENSOR RESISTANCE

{ISOLATEMAINSPOWER}
REMOVE THE LEAD FROM THE FLOW SENSOR

Next: p363, !f364

FLUE SENSOR RESISTANCE

{ISOLATEMAINSPOWER}
DISCONNECT THE GREY LEADS FROM THE FLUE TEMPERATURE THERMOSTAT

Next: p365, !f366

RETURN SENSOR RESISTANCE

{ISOLATEMAINSPOWER}
REMOVE THE LEAD FROM THE RETURN SENSOR

Next: !p367, !f368

PRIMARY HEAT EXCHANGER

{ISOLATEMAINSPOWER}
REMOVE GAS VALVE, FAN AND BURNER ASSEMBLY

Next: p373, !f374

FLUE CHECK

Next: !p427, !f428

HOW TO WITHDRAW THE PCB FROM THE GAS VALVE LEAD

{ISOLATEMAINSPOWER}
DISCONNECT THE LEAD FROM THE GAS VALVE AND FROM THE PCB.

Next: p421, !f422

BRIDGE RECTIFIER AND RESISTOR TEST

{ISOLATEMAINSPOWER}

Next: !p423, !f424

VOLTS TO SPARK GENERATOR AT PCB

{ISOLATEMAINSPOWER}<

Next: p454, !f455

FLAME SENSE VOLTAGE AT ELECTRODE

{ISOLATEMAINSPOWER}<

Next: p444, !f445

PCB FLAME SENSE VOLTAGE

{ISOLATEMAINSPOWER}<

Next: p446, !f447

FLAME SENSE HARNESS RESISTANCE

{ISOLATEMAINSPOWER}<

Next: p448, !f449

CONDENSATE TRAP AND DRAIN CLEAR

{ISOLATEMAINSPOWER}

Next: p450, !f451

FLUE CHECK

Next: !p452, !f453

SPARK GENERATOR (OPERATION)

{ISOLATEMAINSPOWER}<

Next: p456, f457

SPARK ELECTRODE

{ISOLATEMAINSPOWER}
REMOVE GAS VALVE, FAN AND BURNER ASSEMBLY

Next: p460, !f461

CONDENSATE TRAP AND DRAIN CLEAR

{ISOLATEMAINSPOWER}

Next: p462, !f463

FLUE CHECK

Next: !p464, !f465

VOLTS TO GAS VALVE AT PCB

{ISOLATEMAINSPOWER}<

Next: p486, !f487

MAIN GAS VALVE SOLENOID RESISTANCE

{ISOLATEMAINSPOWER}
REMOVE THE PLUG FROM THE GAS VALVE

Next: !p488, !f489

FLUE CHECK

Next: p491, !f492

CONDENSATE TRAP AND DRAIN CLEAR

{ISOLATEMAINSPOWER}

Next: p495, !f494

BURNER INSPECTION

{ISOLATEMAINSPOWER}
GAIN ACCESS TO THE BURNER ASSEMBLY

Next: p496, !f497

PRIMARY HEAT EXCHANGER

{ISOLATEMAINSPOWER}
REMOVE GAS VALVE, FAN AND BURNER ASSEMBLY

Next: !p498, !f499

SECONDARY HEAT EXCHANGER FILTER

{ISOLATEMAINSPOWER}<

Next: !p544, !f545

FLOW BLOCKAGE OR DAMAGE

{ISOLATEMAINSPOWER}<

Next: p9, ?11, ?13, ?15

SECONDARY HEAT EXCHANGER FILTER

{ISOLATEMAINSPOWER}<

Next: !p17, !f18

System Information

Total Tests: 254

Sequence Logic: Decoded from encrypted .seq file

Navigation: Dynamic based on pass/fail results

Source: 4731307 GW SWIFTFLOW 100 SIT Control