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:

JOHNSON & STARLEY ECONOMAIRE 32/INTEJAN WARM AIR HEATER

WARNING - IMPORTA

Next: &1, *

NO FAULT FOUND

Next: nff

JOHNSON & STARLEY ECONOMAIRE 32/INTEJAN WARM AIR HEATER

{ISOLATEMAINSPOWER}<

Next: &2, !f5

SYSTEM CHECKS

PLEASE ENSURE THE FO

Next: &581, !f6

AIR HEATER OR WATER CIRCULATOR PROBLEM?

Next: &nff, ?186, ?188

DOES COMBUSTION FAN RUN (TIMED)?

Next: &4, f400

OBSERVATION COMBUSTION FAN RUNS FOR HEATING

AIR HEATER SWITCH SET TO CONSTANT
WATER HEATER SET TO OFF

Next: &622, ?582, ?584

OBSERVATION COMBUSTION FAN RUNS FOR HOT WATER

WATER HEATER SWITCH SET TO CONSTANT
SET THERMOSTAT TO MID POSITION
AIR HEATER SET TO OFF

Next: &399, ?623, ?625, ?627

SPARKING BUT NO IGNITION (BOTH WC NOT SATISFACTORY)

GAS SUPPLY

Next: End

SPARKING BUT NO IGNITION (BOTH WC NOT SATISFACTORY)

MODULE - CONTROL

Next: End

SPARKING BUT NO IGNITION (BOTH WC NOT SATISFACTORY)

MULTIFUNCTIONAL CONTROL (WATER CIRCULATOR)

Next: End

SPARKING BUT NO IGNITION (BOTH WC NOT SATISFACTORY)

PILOT BURNER ASSEMBLY (WATER CIRCULATOR)

Next: End

SPARKING BUT NO IGNITION (BOTH WC NOT SATISFACTORY)

PILOT BURNER ASSEMBLY (WATER CIRCULATOR)

Next: End

NO SPARKING (BOTH WC NOT SATISFACTORY)

MODULE - CONTROL

Next: End

NO SPARKING (BOTH WC NOT SATISFACTORY)

FUSE - FCD (WATER CIRCULATOR)

Next: End

NO SPARKING (BOTH WC NOT SATISFACTORY)

PILOT BURNER ASSEMBLY (WATER CIRCULATOR)

Next: End

NO SPARKING (BOTH WC NOT SATISFACTORY)

LEAD - IGNITER (WATER CIRCULATOR)

Next: End

BURNER IGNITES (BOTH WC NOT SATISFACTORY)

GAS SUPPLY

Next: End

BURNER IGNITES (BOTH WC NOT SATISFACTORY)

MODULE - CONTROL

Next: End

BURNER IGNITES (BOTH WC NOT SATISFACTORY)

MULTIFUNCTIONAL CONTROL (WATER CIRCULATOR)

Next: End

SPARKING BUT NO IGNITION (BOTH AH NOT SATISFACTORY)

GAS SUPPLY

Next: End

SPARKING BUT NO IGNITION (BOTH AH NOT SATISFACTORY)

FDC AND LIMIT SWITCH (CH)

Next: End

SPARKING BUT NO IGNITION (BOTH AH NOT SATISFACTORY)

MODULE - CONTROL

Next: End

SPARKING BUT NO IGNITION (BOTH AH NOT SATISFACTORY)

MULTIFUNCTIONAL CONTROL (AIR HEATER)

Next: End

SPARKING BUT NO IGNITION (BOTH AH NOT SATISFACTORY)

INJECTOR PILOT (AIR HEATER)

Next: End

SPARKING BUT NO IGNITION (BOTH AH NOT SATISFACTORY)

BURNER - PILOT - SIT (AIR HEATER)

Next: End

NO SPARKING (BOTH AH NOT SATISFACTORY)

MODULE - CONTROL

Next: End

NO SPARKING (BOTH AH NOT SATISFACTORY)

FUSE - FCD (AIR HEATER)

Next: End

NO SPARKING (BOTH AH NOT SATISFACTORY)

BURNER - PILOT - SIT (AIR HEATER)

Next: End

NO SPARKING (BOTH AH NOT SATISFACTORY)

LEAD - IGNITER (AIR HEATER)

Next: End

DOES COMBUSTION FAN RUN TIMED

CLOCK MECHANISM

Next: End

AH OR WC PROBLEM

GAS SUPPLY

Next: End

AH OR WC PROBLEM

MODULE - CONTROL

Next: End

AH OR WC PROBLEM

MULTIFUNCTIONAL CONTROL (AIR HEATER)

Next: End

ELECTRICAL SAFETY CHECKS

ELECTRICAL SAFETY CHECKS

Next: End

INSUFFICIENT AIR FLOW

FILTER ASSEMBLY (AIR HEATER)

Next: End

INSUFFICIENT AIR FLOW (BOTH AH NOT SATISFACTORY)

MODULE - CONTROL

Next: End

INSUFFICIENT AIR FLOW (BOTH AH NOT SATISFACTORY)

RESISTOR

Next: End

INSUFFICIENT AIR FLOW (BOTH AH NOT SATISFACTORY)

CAPACITOR

Next: End

INSUFFICIENT AIR FLOW (BOTH AH NOT SATISFACTORY)

AIR CIRCULATOR FAN SCROLL (AIR HEATER)

Next: End

SYSTEM CYCLING (BOTH AH NOT SATISFACTORY)

FILTER ASSEMBLY (AIR HEATER)

Next: End

SYSTEM CYCLING (BOTH AH NOT SATISFACTORY)

MODULE - CONTROL

Next: End

SYSTEM CYCLING (BOTH AH NOT SATISFACTORY)

AIR CIRCULATOR FAN (AIR HEATER)

Next: End

COOL AIR (BOTH AH NOT SATISFACTORY)

GAS SUPPLY

Next: End

WATER TOO COLD (BOTH WC NOT SATISFACTORY)

BURNER PRESSURE ADJUSTER

Next: End

WATER TOO COLD (BOTH WC NOT SATISFACTORY)

INJECTOR - MAIN - AMAL (WATER CIRCULATOR)

Next: End

WATER TOO COLD (BOTH WC NOT SATISFACTORY)

THERMOSTAT (WATER CIRCULATOR)

Next: End

NOISY OPERATION (BOTH WC NOT SATISFACTORY)

Next: End

NOISY OPERATION (BOTH WC NOT SATISFACTORY)

BURNER PRESSURE ADJUSTER

Next: End

NOISY OPERATION (BOTH WC NOT SATISFACTORY)

INJECTOR - MAIN - AMAL (WATER CIRCULATOR)

Next: End

NOISY OPERATION

THERMOSTAT (WATER CIRCULATOR)

Next: End

NOISY OPERATION (BOTH WC NOT SATISFACTORY)

MULTIFUNCTIONAL CONTROL (WATER CIRCULATOR)

Next: End

FAN RUNS FOR 10 SECONDS (NO AH)

FDC AND LIMIT SWITCH (CH)

Next: End

FAN RUNS FOR 10 SECONDS (NO AH)

SWITCH - AIR PRESSURE

Next: End

FAN RUNS FOR 10 SECONDS (NO AH)

KIT - TUBE - REPLACEMENT - PRESSURE SWITCH

Next: End

FAN RUNS FOR 10 SECONDS (NO AH)

VENTURI

Next: End

FAN RUNS FOR 10 SECONDS (NO AH)

FLUE

Next: End

SYSTEM CHECKS

SYSTEM CHECKS

Next: End

FAN DOES NOT RUN (NEITHER)

Next: End

FAN DOES NOT RUN (NEITHER)

FUSE T3

Next: End

FAN DOES NOT RUN (NEITHER)

3-WAY SWITCH

Next: End

FAN DOES NOT RUN (NEITHER)

3-WAY SWITCH

Next: End

OPEN CIRCUIT (NEITHER)

SWITCH - AIR PRESSURE

Next: End

FAN DOES NOT RUN (NEITHER)

KIT - TUBE - REPLACEMENT - PRESSURE SWITCH

Next: End

FAN DOES NOT RUN (NEITHER)

VENTURI

Next: End

FAN DOES NOT RUN (NEITHER)

FLUE

Next: End

FAN DOES NOT RUN (NO AH)

3-WAY SWITCH

Next: End

FAN DOES NOT RUN (NO AH)

THERMISTA-STAT (AIR HEATER)

Next: End

FAN RUNS FOR 10 SECONDS (NO WC)

SWITCH - AIR PRESSURE

Next: End

FAN RUNS FOR 10 SECONDS (NO WC)

KIT - TUBE - REPLACEMENT - PRESSURE SWITCH

Next: End

FAN RUNS FOR 10 SECONDS (NO WC)

VENTURI

Next: End

FAN RUNS FOR 10 SECONDS (NO WC)

FLUE

Next: End

FAN DOES NOT RUN (NO WC)

3-WAY SWITCH

Next: End

FAN DOES NOT RUN (NO WC)

THERMOSTAT (WATER CIRCULATOR)

Next: End

SPARKING BUT NO IGNITION (BOTH WC NOT SATISFACTORY)

FCD - ELECTRIC - SIT

Next: End

NO SPARKING (BOTH WC NOT SATISFACTORY)

FCD - ELECTRIC - SIT

Next: End

BURNER IGNITES (BOTH WC NOT SATISFACTORY)

INJECTOR - MAIN - AMAL (WATER CIRCULATOR)

Next: End

BURNER IGNITES (BOTH WC NOT SATISFACTORY)

FCD - ELECTRIC - SIT

Next: End

SPARKING BUT NO IGNITION (BOTH AH NOT SATISFACTORY)

FCD - ELECTRIC - SIT

Next: End

NO SPARKING (BOTH AH NOT SATISFACTORY)

FCD - ELECTRIC - SIT

Next: End

DOES COMBUSTION FAN RUN TIMED

3-WAY SWITCH

Next: End

AH OR WC PROBLEM

INJECTOR - MAIN BURNER (AIR HEATER)

Next: End

AH OR WC PROBLEM

FCD - ELECTRIC - SIT

Next: End

AIR HEATING

NO FAULT FOUND

Next: End

INSUFFICIENT AIR FLOW (BOTH AH NOT SATISFACTORY)

AIR CIRCULATOR FAN (AIR HEATER)

Next: End

INSUFFICIENT AIR FLOW (BOTH AH NOT SATISFACTORY)

AIR CIRCULATOR FAN MOTOR (AIR HEATER)

Next: End

SYSTEM CYCLING (BOTH AH NOT SATISFACTORY)

AIR CIRCULATOR FAN MOTOR (AIR HEATER)

Next: End

COOL AIR (BOTH AH NOT SATISFACTORY)

HEAT EXCHANGER (AIR HEATER)

Next: End

COOL AIR (BOTH AH NOT SATISFACTORY)

INJECTOR - MAIN BURNER (AIR HEATER)

Next: End

COOL AIR (BOTH AH NOT SATISFACTORY)

MULTIFUNCTIONAL CONTROL (AIR HEATER)

Next: End

WATER CIRCULATOR

NO FAULT FOUND

Next: End

WATER TOO COLD (BOTH WC NOT SATISFACTORY)

MAIN BODY ASSEMBLY - WATER HEATER

Next: End

WATER TOO COLD (BOTH WC NOT SATISFACTORY)

Next: End

NOISY OPERATION (BOTH WC NOT SATISFACTORY)

MAIN BODY ASSEMBLY - WATER HEATER

Next: End

FAN RUNS FOR 10 SECONDS (NO AH)

MODULE - CONTROL

Next: End

FAN DOES NOT RUN (NEITHER)

COMBUSTION AIR FAN

Next: End

FAN DOES NOT RUN (NEITHER)

MODULE - CONTROL

Next: End

FAN DOES NOT RUN VOLTAGE (NEITHER)

MODULE - CONTROL

Next: End

FAN RUNS WITH WATER CIRCULATOR DEMAND BUT NOT AIR HEATING

MODULE - CONTROL

Next: End

FAN RUNS STOPS RUNS LOCKOUT (NO WC)

SWITCH - OVERHEAT CUT OFF (WATER CIRCULATOR)

Next: End

FAN RUNS FOR 10 SECONDS (NO WC)

MODULE - CONTROL

Next: End

FAN DOES NOT RUN (NO WC)

MODULE - CONTROL

Next: End

AIR HEATING NOT SATISFACTORY

CHARACTERISTIC TEST FROM AIR HEATER OR WATER CIRCULATOR PROBLEM

Next: p187

WATER CIRCULATOR NOT SATISFACTORY

CHARACTERISTIC TEST FROM AIR HEATER OR WATER CIRCULATOR PROBLEM

Next: p189

NO SPARKING

CHARACTERISTIC TEST FROM PILOT IGNITES (AIR HEATING)

Next: p192

SPARKING BUT PILOT DOES NOT IGNITE

CHARACTERISTIC TEST FROM PILOT IGNITES (AIR HEATING)

Next: p194

NO SPARKING

CHARACTERISTIC TEST FROM PILOT IGNITES (AIR HEATING)

Next: p249

SPARKING BUT PILOT DOES NOT IGNITE

CHARACTERISTIC TEST FROM PILOT IGNITES (AIR HEATING)

Next: p251

INSUFICIENT AIR FLOW

CHARACTERISTIC TEST FROM PROBLEM WITH AIR HEATING

Next: p512

SYSTEM CYCLING

CHARACTERISTIC TEST FROM PROBLEM WITH AIR HEATING

Next: p526

COOL AIR

CHARACTERISTIC TEST FROM PROBLEM WITH AIR HEATING

Next: p534

WATER TOO COLD BURNER REMAINS ALIGHT

CHARACTERISTIC TEST FROM PROBLEM WITH WATER CIRCULATOR

Next: p544

WATER TOO COLD BUT APPLIANCE SHUTS DOWN

CHARACTERISTIC TEST FROM PROBLEM WITH WATER CIRCULATOR

Next: p550

NOISY OPERATION

CHARACTERISTIC TEST FROM PROBLEM WITH WATER CIRCULATOR

Next: p554

FAN DOES NOT RUN

CHARACTERISTIC TEST FROM OBSERVATION COMBUSTION FAN RUNS FOR HEATING

Next: p583

FAN RUNS FOR APPROXIMATELY 10 SECONDS THEN STOPS

CHARACTERISTIC TEST FROM OBSERVATION COMBUSTION FAN RUNS FOR HEATING

Next: p585

FAN DOES NOT RUN

CHARACTERISTIC TEST FROM OBSERVATION COMBUSTION FAN RUNS FOR HEATING

Next: p624

FAN RUNS FOR APPROXIMATELY 10 SECONDS THEN STOPS

CHARACTERISTIC TEST FROM OBSERVATION COMBUSTION FAN RUNS FOR HEATING

Next: p626

FAN RUNS APPROX 10 SECS, RESETS, RUNS A FURTHER 20 SECS THEN LOCKOUT

CHARACTERISTIC TEST FROM OBSERVATION COMBUSTION FAN RUNS FOR HOT WATER

Next: !p628

06/11/2017 09:24:24 1710_1_50_1 15/11/2017 13:16:28

06/11/2017 10:56:03

Next: End

BURNER PRESSURE (WATER CIRCULATOR)

{ISOLATEMAINSPOWER}<

Next: !p215, f216

GAS INLET PRESSURE

{ISOLATEMAINSPOWER}<

Next: p217, !f218

BURNER PRESSURE (AIR HEATER)

{ISOLATEMAINSPOWER}<

Next: !p448, f449

CLOCK/TIMER OUTPUT

{ISOLATEMAINSPOWER}
ENSURE CLOCK/TIMER IS CALLING

Next: !p401, !f403

GAS INLET PRESSURE

{ISOLATEMAINSPOWER}<

Next: p450, !f451

AIR CIRCULATING FAN VOLTAGE

AIR HEATER SWITCH SET TO CONSTANT

Next: p517, !f518

BURNER PRESSURE (AIR HEATER)

{ISOLATEMAINSPOWER}<

Next: !p537, f538

GAS INLET PRESSURE

{ISOLATEMAINSPOWER}<

Next: !p539, !f540

COMBUSTION AIR FAN VOLTAGE

{ISOLATEMAINSPOWER}
AIR HEATER SWITCH SET TO CONSTANT

Next: !p598, f599

CONTROL MODULE VOLTAGE

Next: p600, f601

MAINS POWER SUPPLY

Next: p602, !f603

PILOT IGNITES (AIR HEATING)

AIR HEATER SWITCH SET TO CONSTANT

Next: p247, ?248, ?250

PILOT IGNITES (WATER CIRCULATOR)

WATER HEATER SWITCH SET TO CONSTANT
SET THERMOSTAT TO MID POSITION

Next: p190, ?191, ?193

BURNER IGNITES (WATER CIRCULATOR)

WATER HEATER SWITCH SET TO CONSTANT
SET THERMOSTAT TO MID POSITION

Next: p541, f214

CONTROL MODULE OUTPUT

{ISOLATEMAINSPOWER}
WATER HEATER SWITCH SET TO CONSTANT
SET THERMOSTAT TO MID POSITION

Next: p205, !f206

GAS INLET PRESSURE

{ISOLATEMAINSPOWER}<

Next: p195, !f196

PILOT GAS VALVE VOLTAGE

WATER HEATER SWITCH SET TO CONSTANT
REMOVE THE UPPER ELECTRONIC FLAME CONTROL DEVICE

Next: p197, !f198

GAS VALVE PILOT SOLENOID RESISTANCE

{ISOLATEMAINSPOWER}
REMOVE THE UPPER ELECTRONIC FLAME CONTROL DEVICE

Next: p199, !f200

IGNITION BURNER INJECTOR-WATER CIRCULATOR

{ISOLATEMAINSPOWER}

Next: p201, !f202

IGNITION BURNER ASSEMBLY- WATER CIRCULATOR

{ISOLATEMAINSPOWER}

Next: !p203, !f204

FUSE (ELECTRIC FLAME CONTROL DEVICE)

{ISOLATEMAINSPOWER}<

Next: p207, !f208

IGNITION BURNER ASSEMBLY- WATER CIRCULATOR

{ISOLATEMAINSPOWER}

Next: p209, !f210

IGNITER LEAD

{ISOLATEMAINSPOWER}
DISCONNECT THE IGNITION LEAD

Next: !p211, !f212

GAS VALVE VOLTAGE

WATER HEATER SWITCH SET TO CONSTANT
SET THERMOSTAT TO MID POSITION

Next: p219, !f220

MAIN GAS VALVE RESISTANCE

{ISOLATEMAINSPOWER}
REMOVE THE UPPER ELECTRONIC FLAME CONTROL DEVICE

Next: !p221, !f222

BURNER IGNITES (AIR HEATING)

AIR HEATER SWITCH SET TO CONSTANT

Next: p509, f273

CONTROL MODULE OUTPUT

{ISOLATEMAINSPOWER}
AIR HEATER SWITCH SET TO CONSTANT

Next: p264, !f265

GAS INLET PRESSURE

{ISOLATEMAINSPOWER}<

Next: p252, !f253

LIMIT SWITCH RESISTANCE

{ISOLATEMAINSPOWER}
LIMIT SWITCH AND FDC ASSEMBLY IS LOCATED TOP LEFT BEHIND THE SEALING PANEL

Next: p254, !f255

PILOT GAS VALVE VOLTAGE

AIR HEATER SWITCH SET TO CONSTANT

Next: p256, !f257

GAS VALVE PILOT SOLENOID RESISTANCE

{ISOLATEMAINSPOWER}
REMOVE THE LOWER ELECTRONIC FLAME CONTROL DEVICE

Next: p258, !f259

IGNITION BURNER INJECTOR-AIR HEATER

{ISOLATEMAINSPOWER}

Next: p260, !f261

IGNITION BURNER ASSEMBLY-AIR HEATER

{ISOLATEMAINSPOWER}

Next: !p262, !f263

FUSE (ELECTRIC FLAME CONTROL DEVICE)

{ISOLATEMAINSPOWER}<

Next: p266, !f267

IGNITION BURNER ASSEMBLY-AIR HEATER

{ISOLATEMAINSPOWER}

Next: p268, !f269

IGNITER LEAD

{ISOLATEMAINSPOWER}
DISCONNECT THE IGNITION LEAD

Next: !p270, !f271

GAS VALVE VOLTAGE

AIR HEATER SWITCH SET TO CONSTANT

Next: p452, !f453

MAIN GAS VALVE RESISTANCE

{ISOLATEMAINSPOWER}
REMOVE THE LOWER ELECTRONIC FLAME CONTROL DEVICE

Next: !p459, !f455

PROBLEM WITH AIR HEATING

Next: !p510, ?511, ?525, ?533

AIR FLOW FILTER

{ISOLATEMAINSPOWER}

Next: p513, !f514

AIR CIRCULATING FAN (FULL SPEED)

{ISOLATEMAINSPOWER}
AIR HEATER SWITCH SET TO CONSTANT
THERMISTOR-STAT SET TO MAXIMUM

Next: p515, f516

FAN SCROLL

{ISOLATEMAINSPOWER}

Next: !p523, !f524

RESISTOR

{ISOLATEMAINSPOWER}<

Next: p519, !f520

FAN POWER CAPACITOR

{ISOLATEMAINSPOWER}<

Next: !p521, !f522

AIR FLOW FILTER

{ISOLATEMAINSPOWER}

Next: p527, !f528

AIR CIRCULATING FAN (FULL SPEED)

{ISOLATEMAINSPOWER}
AIR HEATER SWITCH SET TO CONSTANT
THERMISTOR-STAT SET TO MAXIMUM

Next: p529, !f530

FAN SCROLL

{ISOLATEMAINSPOWER}

Next: !p531, !f532

GAS USAGE CHECK

AIR HEATER SWITCH SET TO CONSTANT

Next: !p535, f536

PROBLEM WITH WATER CIRCULATOR

Next: !p542, ?543, ?549, ?553

BURNER PRESSURE (WATER CIRCULATOR)

{ISOLATEMAINSPOWER}<

Next: p545, !f546

GAS USAGE CHECK

WATER HEATER SWITCH SET TO CONSTANT
SET THERMOSTAT TO MID POSITION

Next: !p547, !f548

THERMOSTAT (EARLY OPERATION)

WATER HEATER SWITCH SET TO CONSTANT
SET THERMOSTAT TO MAX POSITION

Next: !p551, !f552

IS WATER CIRCULATING?

WATER HEATER SWITCH SET TO CONSTANT
SET THERMOSTAT TO MID POSITION

Next: p555, !f556

BURNER PRESSURE (WATER CIRCULATOR)

{ISOLATEMAINSPOWER}<

Next: p557, !f558

GAS USAGE CHECK

WATER HEATER SWITCH SET TO CONSTANT
SET THERMOSTAT TO MID POSITION

Next: p559, !f560

THERMOSTAT (LATE OPERATION)

WATER HEATER SWITCH SET TO CONSTANT
SET THERMOSTAT TO MID POSITION

Next: p567, !f563

BURNER SHUT DOWN

Next: !p579, !f580

OBSERVATION COMBUSTION FAN RUNS FOR HOT WATER (NO HEAT)

WATER HEATER SWITCH SET TO CONSTANT
SET THERMOSTAT TO MID POSITION
AIR HEATER SET TO OFF

Next: p596, f597

FDC RESISTANCE

{ISOLATEMAINSPOWER}

Next: p586, !f587

AIR PRESSURE SWITCH VOLTAGE

AIR HEATER SWITCH SET TO CONSTANT

Next: p588, !f589

AIR PRESSURE SWITCH TUBES

{ISOLATEMAINSPOWER}

Next: p590, !f591

VENTURI

{ISOLATEMAINSPOWER}

Next: p592, !f593

FLUE

Next: !p594, !f595

AIR HEATER SWITCH

{ISOLATEMAINSPOWER}
REMOVE THE LEADS FROM THE AIR HEATER SWITCH

Next: p618, !f619

AIR PRESSURE SWITCH VOLTAGE

Next: p610, !f611

FUSE

{ISOLATEMAINSPOWER}<

Next: p604, !f605

AIR HEATER SWITCH

{ISOLATEMAINSPOWER}
REMOVE THE LEADS FROM THE AIR HEATER SWITCH

Next: p606, !f607

WATER HEATER SWITCH

{ISOLATEMAINSPOWER}
REMOVE THE LEADS FROM THE WATER HEATER SWITCH

Next: !p608, !f609

AIR PRESSURE SWITCH TUBES

{ISOLATEMAINSPOWER}

Next: p612, !f613

VENTURI

{ISOLATEMAINSPOWER}

Next: p614, !f615

FLUE

Next: !p616, !f617

THERMISTOR-STAT RESISTANCE

{ISOLATEMAINSPOWER}
SET THE THERMISTOR-STAT TO MAXIMUM

Next: !p620, !f621

WATER HEATER SWITCH

{ISOLATEMAINSPOWER}
REMOVE THE LEADS FROM THE WATER HEATER SWITCH

Next: p637, !f638

AIR PRESSURE SWITCH VOLTAGE

WATER HEATER SWITCH SET TO CONSTANT
SET THERMOSTAT TO MID POSITION

Next: p629, !f630

AIR PRESSURE SWITCH TUBES

{ISOLATEMAINSPOWER}

Next: p631, !f632

VENTURI

{ISOLATEMAINSPOWER}

Next: p633, !f634

FLUE

Next: !p635, !f636

THERMOSTAT RESISTANCE

{ISOLATEMAINSPOWER}

Next: !p639, !f640

System Information

Total Tests: 198

Sequence Logic: Decoded from encrypted .seq file

Navigation: Dynamic based on pass/fail results

Source: 4731307 GW SWIFTFLOW 100 SIT Control