XSol Diagnostic System

Interactive Test Sequence Navigator

Welcome to the XSol Diagnostic System

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

Start Diagnostic Sequence

or choose a specific test below:

VAILLANT ECOTEC PLUS

GLOBALLY REPLACED

Next: &1, *

NO FAULT FOUND

Next: nff

VAILLANT ECOTEC PLUS

CASE REMOVAL<

Next: &968, !f2

TYPE OF DIAGNOSTIC PROCEDURE

PLEASE SELECT FROM O

Next: &43, !f4

POWER UP

Next: &37, f6

FAN RUN CH DEMAND

Next: &101, f24

PUMP RUNS CH DEMAND

CH THERMOSTAT SET TO 70°C

Next: &23, f602

FAULT CODES

Next: &5, !f44

BURNER IGNITES AND ESTABLISHES

ON-OFF SWITCH ON

Next: &173, ?102, ?104, ?106, ?108

CH OPERATION

ON/OFF SWITCH ON

Next: &277, ?174, ?176, ?178, ?180, ?182, ?184

CH MODULATION

CH TEMP CONTROL SET TO 60°C

Next: &285, f278

BOILER ON, NO DEMAND (ANTI FROST PROTECTION)

ON-OFF SWITCH ON
ENSURE ALL EXTERNAL CONTROLS ARE OFF

Next: &297, f286

DHW DEMAND

Next: &299, !f298

PUMP OVERRUN

Next: &nff, f300

FUSE 1 3AMP FUSED SPUR

REMOVE FUSE FROM FUSED SPUR

Next: &nff, f371

F1_F10 FAULT CODE_FLOW THERMISTOR

Next: &nff, f451

F11_13 FAULT CODE_ RETURN THERMISTOR

Next: &nff, f461

F67 FAULT CODE

OUT OF MODEL

Next: &nff, f471

F70 FAULT CODE

OUT OF MODEL

Next: &nff, f478

F49 FAULT CODE

OUT OF MODEL

Next: &nff, f481

F61 / F62 FAULT CODE

HEADER FOR FAULT CODE - OUTSIDE MODEL

Next: &nff, f484

F76 FAULT CODE

OUT OF MODEL

Next: &nff, f518

F22 FAULT CODE

OUT OF MODEL

Next: &nff, f658

INSPECTION FLUE COLLECTOR AND SEALS

Next: &3, !f969

GAS RATE

BURNER

Next: End

GAS RATE

HEAT EXCHANGER

Next: End

GAS RATE1BOILER NOISY

CONDENSATE TRAP OR DRAIN

Next: End

GAS RATE1BOILER NOISY

BURNER

Next: End

GAS RATE1BOILER NOISY

HEAT EXCHANGER

Next: End

BACKED UP PREVENTING IGNITION

CONDENSATE TRAP OR DRAIN

Next: End

RESTRICTED OR BLOCKED PREVENTING IGNITION

FLUE

Next: End

SPARKING NO IGNITION

ELECTRODE

Next: End

BURNER DOES NOT IGNITE

HEAT EXCHANGER

Next: End

SPARK NO IGNITION

PCB

Next: End

BURNER DOES NOT ESTABLISH

GAS SUPPLY

Next: End

BLOWN STAND BY MODE AT POWER UP

MAINS FUSE

Next: End

BURNER BAFFLES OUT

GAS SUPPLY

Next: End

SPARKING ABSENT

CABLE

Next: End

SPARKING OCCURS

FAN

Next: End

CH OPERATION FAILURE TO REFIRE

Next: End

CASE REMOVAL

DIRECTION CHOICE OR CONTINUE

Next: End

BOILER TEMP LOW SYS LOW

GAS SUPPLY

Next: End

UNDER PRESSURE

EXPANSION VESSEL

Next: End

BOILER TO TEMP RADS COOL

PUMP

Next: End

BOILER NOISY

SYSTEM PRESSURE

Next: End

BOILR SHUTS DOWN PREMATURELY CHOPERATION

PUMP

Next: End

BOILER NOISY

GAS VALVE

Next: End

BOILER TEMP LOW SYSTEM TEMP LOW

SENSOR - NTC - CH FLOW/CH RETURN

Next: End

BOILER GETS TOO COOL BEFORE REFIRING

SENSOR - NTC - CH FLOW/CH RETURN

Next: End

BOILER TEMP LOW SYSTEM TEMP LOW

SENSOR - NTC - CH FLOW/CH RETURN

Next: End

BOILER GETS TOO COOL BEFORE REFIRING

SENSOR - NTC - CH FLOW/CH RETURN

Next: End

CH MODULATION

SENSOR - NTC - CH FLOW/CH RETURN

Next: End

CH MODULATION

SENSOR - NTC - CH FLOW/CH RETURN

Next: End

TEMP BELOW 5 DEGREE

ANTIFROST ACTIVATED

Next: End

FROST

SENSOR - NTC - CH FLOW/CH RETURN

Next: End

FROST

SENSOR - NTC - CH FLOW/CH RETURN

Next: End

DHW DEMAND

Next: End

PUMP OVERUN

SENSOR - NTC - CH FLOW/CH RETURN

Next: End

PUMP OVERUN

SENSOR - NTC - CH FLOW/CH RETURN

Next: End

OPEN OR SHORT CIRCUITFURTHER INVESTIGATION FUSE F1

GAS VALVE

Next: End

FURTHER INVESTIGATION FUSE F1

PUMP

Next: End

FOR TYPE DIAG PROCEDURE

DIRECTION CHOICE OR CONTINUE

Next: End

FAULT CODES

DIRECTION CHOICE OR CONTINUE

Next: End

F1 F10 FAULT CODE

SENSOR - NTC - CH FLOW/CH RETURN

Next: End

F67 FAULT CODE

PCB

Next: End

F70 FAULT CODE

RESET TO FACTORY PARAMETERS

Next: End

F49 FAULT CODE

INSPECT CONNECTIONS TO EBUS CONTROLLER

Next: End

NO SHUT DOWN

GAS VALVE

Next: End

NO FLOW

Next: End

OVERHEAT 2

SENSOR - NTC - CH FLOW/CH RETURN

Next: End

OVERHEAT 2

SENSOR - NTC - CH FLOW/CH RETURN

Next: End

PUMP

PCB

Next: End

NO PUMP

HARNESS PUMP

Next: End

NO FAN

SENSOR - NTC - CH FLOW/CH RETURN

Next: End

NO FAN

CABLE TREE - HARNESS

Next: End

NO FAN

PCB

Next: End

F11

SENSOR - NTC - CH FLOW/CH RETURN

Next: End

DRY FIRE

SYSTEM WATER/ PRESSURE

Next: End

BOILER GETS TOO COOL BEFORE REFIRINGDRY FIRE

SENSOR - NTC - CH FLOW/CH RETURN

Next: End

BOILER GETS TOO COOL BEFORE REFIRINGDRY FIRE

SENSOR - NTC - CH FLOW/CH RETURN

Next: End

F22 DRY FIRE

PUMP

Next: End

BOILER TO TEMP RADS COLD

Next: End

BOILER NOISYBOILER NOISY

SENSOR - NTC - CH FLOW/CH RETURN

Next: End

BOILER NOISYBOILER NOISY

SENSOR - NTC - CH FLOW/CH RETURN

Next: End

PUMPF22

PCB

Next: End

NO PUMPF22

HARNESS PUMP

Next: End

PUMPBOILER UP TO TEMP RADS COLD

PCB

Next: End

NO PUMPBOILER UP TO TEMP RADS COLD

HARNESS PUMP

Next: End

BOILER NOISYPUMP

PCB

Next: End

BOILER NOISYNO PUMP

HARNESS PUMP

Next: End

PUMPF76 FAULT CODE

PCB

Next: End

NO PUMPF76 FAULT CODE

HARNESS PUMP

Next: End

NO POWER TO EXTERNAL CONTROLSNO PUMP

Next: End

FAN RUNS DHW

SENSOR - NTC - CH FLOW/CH RETURN

Next: End

NOISY

Next: End

FURTHER INVESTIGATION FUSE F1

FAN

Next: End

BLOWN STANDBY MODE AT POWER UP

FUSE MAIN PCB

Next: End

NO DISPLAY

PCB

Next: End

F61

GAS VALVE

Next: End

F62

GAS VALVE

Next: End

F61 GAS VALVE

PCB

Next: End

OVERHEATOVERHEAT FURTHER

PUMP

Next: End

F76

Next: End

OVERHEAT

SENSOR - NTC - CH FLOW/CH RETURN

Next: End

OVERHEAT

SENSOR - NTC - CH FLOW/CH RETURN

Next: End

COMBUSTION CHAMBER OVERHEAT

CONDENSATE TRAP OR DRAIN

Next: End

SPLIT / LEAKING

FLUE COLLECTOR / SEALS

Next: End

BURNER DOES NOT ESTABLISH

CONDENSATE TRAP OR DRAIN

Next: End

BURNER DOES NOT ESTABLISH

FLUE

Next: End

BURNER DOES NOT ESTABLISH

CABLE

Next: End

BURNER DOES NOT ESTABLISH

ELECTRODE

Next: End

BURNER DOES NOT ESTABLISH

HEAT EXCHANGER

Next: End

BURNER BAFFLES OUT

CONDENSATE TRAP OR DRAIN

Next: End

BURNER BAFFLES OUT

FLUE

Next: End

BURNER BAFFLES OUT

BURNER

Next: End

BURNER BAFFLES OUT

HEAT EXCHANGER

Next: End

GAS RATE

CONDENSATE TRAP OR DRAIN

Next: End

GAS RATE

FLUE

Next: End

GAS RATE1BOILER NOISY

FLUE

Next: End

BLOCKED OR DAMAGED

BURNER

Next: End

WARPED AWAY FROM BURNER 2

ELECTRODE

Next: End

WRONG MIX NOT IGNITING

GAS VALVE

Next: End

SPARKING NO IGNITION

GAS SUPPLY

Next: End

MECHANICAL

GAS VALVE

Next: End

NO POWER TO GAS VALVE

CABLE TREE - HARNESS

Next: End

FURTHER INVESTIGATION F1

Z DIRECTION CHOICE OR CONTINUE

Next: End

SPARKING OCCURS

ELECTRODE

Next: End

SPARKING ABSENT

PCB

Next: End

SYS TEMP RESTART

PCB

Next: End

EXPANSION CONNECTION

BLOCKAGE - PIPE TO EXPANSION VESSEL

Next: End

BOILER TEMP LOW SYSTEM TEMP LOW

PCB

Next: End

OVERHEAT

BOILER OVERHEAT

Next: End

CH MODULATION

PCB

Next: End

BOILER ON- NO DEMAND

Next: End

ANTI FROST

PCB

Next: End

PUMP OVERRUN

PCB

Next: End

F1/F2 FAULT CODES

PCB

Next: End

SENSOR PRIMARY F1/F10 FAULT CODE

CABLE TREE - HARNESS

Next: End

F11/F13 FAULT CODE

PCB

Next: End

SENSOR TEMP RETURN F11/13 FAULT CODE

CABLE TREE - HARNESS

Next: End

F67 RETEST BOILER

DIRECTION CHOICE OR CONTINUE

Next: End

F70 RETEST BOILER

DIRECTION CHOICE OR CONTINUE

Next: End

F49 RETEST BOILER

DIRECTION CHOICE OR CONTINUE

Next: End

OVERHEAT

TEMPERATURE OVERHEAT

Next: End

NO REFIRE

Next: End

OVERHEAT

PCB

Next: End

PUMP

PUMP

Next: End

SENSOR PRIMARY FAN RUNS

CABLE TREE - HARNESS

Next: End

NOT RUNNING

FAN

Next: End

FUSE 1

SYSTEM WIRING

Next: End

GAS VALVE F1

CABLE TREE - HARNESS

Next: End

BOILER TEMP LOW

GAS VALVE

Next: End

SYS TEMP RESTARTDRY FIRE

PCB

Next: End

NO FAN 2

PCB

Next: End

BOILER TO TEMP RADS COLD

Next: End

BOILER NOISYBOILER NOISY

GAS VALVE

Next: End

BOILER NOISYBOILER NOISY

PCB

Next: End

CH OPERATION NOISYBOILER NOISY

HEAT EXCHANGER

Next: End

CH OPERATION NOISEYBOILER NOISY

Next: End

PUMPF22

PUMP

Next: End

PUMPBOILER UP TO TEMP RADS COLD

PUMP

Next: End

BOILER NOISYPUMP

PUMP

Next: End

PUMPF76 FAULT CODE

PUMP

Next: End

POWER UP_NO SWITCH LIVENO PUMP

Next: End

SENSOR TEMP RETURN FAN RUNS

CABLE TREE - HARNESS

Next: End

MAINS FUSE

FUSE GONE PCB

Next: End

F1

CABLE TREE - HARNESS

Next: End

FURTHER IN VESTIGATION F2

Z DIRECTION CHOICE OR CONTINUE

Next: End

NO DISPLAY

DISPLAY

Next: End

SUPPLY FAULT AT POWER UP

Next: End

F61 FAULT CODE

CABLE TREE - HARNESS

Next: End

RETEST BOILER

DIRECTION CHOICE OR CONTINUE

Next: End

OVERHEAT2

PCB

Next: End

BURNER DOES NOT ESTABLISH

BURNER

Next: End

WARPED AWAY FROM BURNER

ELECTRODE

Next: End

BURNER DOES NOT ESTABLISH

PCB

Next: End

BAFFLE

GAS VALVE

Next: End

SPARKING OCCURS BURNER DOES NOT IGNITE

CHARACTERISTIC TEST FROM BURNER IGNITES AND ESTABLISHES

Next: p1028

FAN RUNS SPARKING DOES NOT OCCUR

CHARACTERISTIC TEST FROM BURNER IGNITES AND ESTABLISHES

Next: p105

BURNER UNSATISFACTORY

CHARACTERISTIC TEST FROM INSPECTION BURNER AND ELECTRODE GAP

Next: !p1041

ELECTRODE GAP FROM BURNER UNSATISFACTORY

CHARACTERISTIC TEST FROM INSPECTION BURNER AND ELECTRODE GAP

Next: !p1043

INLET PRESSURE DOES NOT DIP TO INDICATE GAS VALVE IS OPENING

CHARACTERISTIC TEST FROM PRESSURE GAS INLET AND DIP

Next: p1050

INLET PRESSURE UNSATISFACTORY

CHARACTERISTIC TEST FROM PRESSURE GAS INLET AND DIP

Next: !p1049

BURNER IGNITES BUT BAFFLES OUT OR LIFTS OFF

CHARACTERISTIC TEST FROM BURNER IGNITES AND ESTABLISHES

Next: p107

BURNER IGNITES BUT DOES NOT ESTABLISH

CHARACTERISTIC TEST FROM BURNER IGNITES AND ESTABLISHES

Next: p109

BOILER NOISY

CHARACTERISTIC TEST FROM CH OPERATION

Next: p175

BOILER UP TO TEMP RADS COLD

CHARACTERISTIC TEST FROM CH OPERATION

Next: p761

SYSTEM PRESSURE RISE EXCESSIVE

CHARACTERISTIC TEST FROM CH OPERATION

Next: p179

BOILER TEMP LOW SYSTEM TEMP LOW

CHARACTERISTIC TEST FROM CH OPERATION

Next: p181

OPERATION SATISFACTORY, BUT GETS TOO COOL BEFORE REFIRING

CHARACTERISTIC TEST FROM CH OPERATION

Next: p183

OPERATION SATISFACTORY BUT BOILER GOES TO OVERHEAT

CHARACTERISTIC TEST FROM CH OPERATION

Next: p268

TEMP DIFF CORRECT LOCAL BOILING

CHARACTERISTIC TEST FROM TEMPERATURE DIFFERENTIAL FLOW RETURN (P=DIF NOK NOISY NSD)

Next: !p727

DIFFERENTIAL OK

CHARACTERISTIC TEST FROM TEMPERATURE DIFFERENTIAL FLOW RETURN (P=DIF NOK NOISY NSD)

Next: !p729

BURNER UNSATISFACTORY

CHARACTERISTIC TEST FROM INSPECTION BURNER AND ELECTRODE GAP

Next: !p983

ELECTRODE GAP FROM BURNER UNSATISFACTORY

CHARACTERISTIC TEST FROM INSPECTION BURNER AND ELECTRODE GAP

Next: !p985

08/06/2021 15:42:03 2106_1_50_1 14/07/2021 11:20:40

05/07/2021 09:58:30

Next: End

FUSE FURTHER INVESTIGATION F1

Next: !p11, !f12

CONDENSATE PIPE

Next: p1007, !f1008

GAS VALVE VOLTAGE (PCB)

{GAINPCBACS}
ON-OFF SWITCH ON

Next: !p1053, !f1054

RESISTANCE SPARK ELECTRODE LEAD

Next: p140, !f141

FAN TEST PRESSURE

ATTACH PRESSURE GAUGE TO GAS VALVE OUTLET PRESSURE TEST POINT
ON-OFF SWITCH ON

Next: !p643, f997

VOLTAGE FAN PERMANENT AT PCB

{GAINPCBACS}
DISC

Next: p615, !f637

RESISTANCE SENSOR TEMP FLOW

LOCATE THE FLOW THER

Next: p574, !f573

RESISTANCE SENSOR TEMP FLOW

LOCATE THE FLOW THER

Next: p279, !f283

EXTERNAL CONTROLS

{GAINPCBACS}

Next: !p287, f288

CHECK FLOW PIPE TEMP

Next: p289, !f290

RESISTANCE SENSOR TEMP FLOW

LOCATE THE FLOW THER

Next: p301, !f305

RESISTANCE GAS VALVE SOLENOID MAIN AND HARNESS

DISCONNECT PLUG MARKED X20 FROM THE PCB

Next: p392, f373

RESISTANCE GAS VALVE SOLENOID MAIN

REMOVE THE PLUG FROM THE GAS VALVE

Next: !p640, !f375

RESISTANCE PUMP

Next: !p638, !f396

RESISTANCE SENSOR TEMP FLOW AND HARNESS

REMOVE CONNECTOR X20 FROM THE PCB

Next: !p452, f453

RESISTANCE SENSOR TEMP FLOW

LOCATE THE FLOW THER

Next: !p454, !f455

RESISTANCE SENSOR TEMP RETURN AND HARNESS

REMOVE CONNECTOR X20 FROM THE PCB

Next: !p462, f463

RESISTANCE SENSOR TEMP RETURN

REMOVE THE TWO CONNECTORS (ONE BLACK WIRE AND ONE BLUE)
FROM THE THERMISTOR

Next: !p464, !f656

LOCKOUT RESET F 67

ON-OFF SWITCH ON

Next: !p472, !f473

LOCKOUT RESET F 70

ON-OFF SWITCH ON

Next: !p479, !f480

LOCKOUT RESET F 49

ON-OFF SWITCH ON

Next: !p482, !f483

RESISTANCE GAS VALVE SOLENOID MAIN AND HARNESS

DISCONNECT PLUG MARKED X20 FROM THE PCB

Next: p914, f911

BOILER UP TO TEMP ON HW_CH DOES BOILER FUNCTION WITHOUT OVERHEATING

BOILER TEMPERATURE C

Next: !p519, f547

INSPECTION GAS VALVE SHUT DOWN

Next: p810, !f549

EXTERNAL BYPASS

Next: !p571, !f572

VOLTAGE MAINS POWER INPUT TO APPLIANCE

{GAINPCBACS}

Next: p892, f8

EXTERNAL VOLTAGE INTO BOILER

{GAINPCBACS}

Next: p610, f842

RESISTANCE SENSOR TEMP FLOW AND HARNESS

REMOVE CONNECTOR X20 FROM THE PCB

Next: p627, f628

RESISTANCE SENSOR TEMP FLOW

LOCATE THE FLOW THER

Next: !p629, !f630

RESISTANCE SENSOR TEMP RETURN

REMOVE THE TWO CONNECTORS (ONE BLACK WIRE AND ONE BLUE)
FROM THE THERMISTOR

Next: !p847, !f846

SYSTEM FULL OF WATER

CHECK RADIATORS, AIRING CUPBOARD AND PIPEWORK
CHECK MANUAL AND AUTO VENTS

Next: p747, !f660

FAN TEST PRESSURE

ATTACH PRESSURE GAUGE TO GAS VALVE OUTLET PRESSURE TEST POINT
ON-OFF SWITCH ON

Next: !p714, f1006

VOLTAGE AT PCB PUMP

{GAINPCBACS}

Next: p757, !f758

VOLTAGE AT PCB PUMP

{GAINPCBACS}

Next: p768, !f769

RESISTANCE FUSE F1 (FUSED SPUR)

REMOVE THE FUSE FROM THE FUSED SPUR

Next: !p9, f10

VOLTAGE AT PCB PUMP

{GAINPCBACS}

Next: p801, !f802

VOLTAGE AT PCB PUMP

{GAINPCBACS}

Next: p831, !f832

VOLTAGE OUT TO EXTERNAL CONTROLS

Next: !p843, !f844

RESISTANCE FAN

REMOVE CONNECTOR X20

Next: !p888, !f889

FUSE FURTHER INVESTIGATION F2

Next: !p894, !f895

RESISTANCE GAS VALVE SOLENOID MAIN

REMOVE THE PLUG FROM THE GAS VALVE

Next: !p912, !f913

CONDENSATE PIPE

Next: p998, !f999

INSPECTION HEAT EXCHANGER PRIMARY (FLUE WAYS)

Next: !p1002, !f1003

INSPECTION BURNER

REMOVE THE BURNER

Next: p1009, !f1010

INSPECTION HEAT EXCHANGER PRIMARY (FLUE WAYS)

Next: !p1011, !f1012

CONDENSATE PIPE

Next: p1031, !f1030

INSPECTION FLUE

Next: p1034, !f1033

PRESSURE GAS INLET AND DIP

ATTACH PRESSURE GAUGE TO GAS VALVE INLET PRESSURE TEST POINT
ON-OFF SWITCH ON

Next: p1035, ?1046, ?1048

INSPECTION ELECTRODE AND GAP

Next: p1036, !f1037

INSPECTION BURNER AND ELECTRODE GAP

REMOVE BURNER DOOR ASSEMBLY FROM APPLIANCE

Next: p1038, ?1040, ?1042

INSPECTION HEAT EXCHANGER PRIMARY (FLUE WAYS)

Next: !p1044, !f1045

SPARKING PRESENT CH

ON-OFF SWITCH ON

Next: !p138, f139

GAS VALVE VOLTAGE AT GAS VALVE

Next: !p1051, f1052

GAS INLET PRESSURE

ATTACH PRESSURE GAUGE TO THE INLET PRESSURE TEST POINT
ON/OFF SWITCH ON

Next: p988, !f127

GAS INLET PRESSURE

ATTACH PRESSURE GAUGE TO THE INLET PRESSURE TEST POINT
ON/OFF SWITCH ON

Next: p971, !f111

VOLTAGE FAN SPEED

ON-OFF SWITCH ON

Next: !p142, !f143

SYSTEM PRESSURE

PRESSURE GAUGE MAYBE REMOTE TO THE BOILER

Next: p772, !f227

PUMP LIMPET TEST

Next: p676, !f221

EXPANSION VESSEL PRESSURE

SYSTEM DISCHARGED

Next: !p218, !f219

GAS INLET PRESSURE

ATTACH PRESSURE GAUGE TO THE INLET PRESSURE TEST POINT
ON/OFF SWITCH ON

Next: p200, !f201

VOLTAGE BOILER SWITCHED LIVE OPERATION REFIRE

{GAINPCBACS}

Next: p188, !f189

TEMPERATURE SYSTEM FLOW

SET CH THERMOSTAT TO 50°C
ATTACH A TEMPERATURE PROBE TO THE FLOW PIPE CLOSE TO THE BOILER

Next: p190, f570

RESISTANCE SENSOR TEMP FLOW

LOCATE THE FLOW THER

Next: p196, !f261

RESISTANCE SENSOR TEMP RETURN

REMOVE THE TWO CONNECTORS (ONE BLACK WIRE AND ONE BLUE)
FROM THE THERMISTOR

Next: !p198, !f263

GAS RATE

Next: p202, f203

RESISTANCE SENSOR TEMP FLOW

LOCATE THE FLOW THER

Next: p214, !f260

RESISTANCE SENSOR TEMP RETURN

REMOVE THE TWO CONNECTORS (ONE BLACK WIRE AND ONE BLUE)
FROM THE THERMISTOR

Next: !p265, !f262

PUMP LIMPET TEST

Next: p858, !f229

COMBUSTION TEST

ON-OFF SWITCH ON

Next: p707, !f231

CAN BOILER BE RESET

Next: !p269, f270

RESISTANCE SENSOR TEMP RETURN

REMOVE THE TWO CONNECTORS (ONE BLACK WIRE AND ONE BLUE)
FROM THE THERMISTOR

Next: !p281, !f284

RESISTANCE SENSOR TEMP FLOW

LOCATE THE FLOW THER

Next: p291, !f295

RESISTANCE SENSOR TEMP RETURN

REMOVE THE TWO CONNECTORS (ONE BLACK WIRE AND ONE BLUE)
FROM THE THERMISTOR

Next: !p293, !f296

RESISTANCE SENSOR TEMP RETURN

REMOVE THE TWO CONNECTORS (ONE BLACK WIRE AND ONE BLUE)
FROM THE THERMISTOR

Next: !p303, !f306

RESISTANCE PUMP AND HARNESS

DISCONNECT X18 FROM PCB

Next: p885, f394

RESISTANCE SENSOR TEMP RETURN

REMOVE THE TWO CONNECTORS (ONE BLACK WIRE AND ONE BLUE)
FROM THE THERMISTOR

Next: !p599, !f576

VOLTAGE AT PCB PUMP

{GAINPCBACS}

Next: p611, !f612

VOLTAGE AT PUMP

REMOVE THE COVER FROM THE PUMP
APPLY DEMAND

Next: !p613, !f614

VOLTAGE FAN CONTROL

DISCONNECT THE FAN CONNECTOR FROM THE FAN ASSEMBLY
(PLACE IN A SAFE POSITION)
ON-OFF SWITCH ON

Next: p625, f626

RESISTANCE FAN HARNESS

DISCONNECT X20 FROM THE PCB
DISCONNECT THE FAN CONNECTOR FROM THE FAN ASSEMBLY

Next: !p635, !f636

RESISTANCE SENSOR TEMP RETURN AND HARNESS

REMOVE CONNECTOR X20 FROM THE PCB

Next: !p673, f632

RESISTANCE SENSOR TEMP FLOW

LOCATE THE FLOW THER

Next: p662, !f663

RESISTANCE SENSOR TEMP RETURN

REMOVE THE TWO CONNECTORS (ONE BLACK WIRE AND ONE BLUE)
FROM THE THERMISTOR

Next: !p664, !f665

PUMP LIMPET TEST

Next: p661, !f672

EXTERNAL BYPASS

Next: !p677, !f678

RESISTANCE SENSOR TEMP FLOW

LOCATE THE FLOW THER

Next: p708, !f709

RESISTANCE SENSOR TEMP RETURN

REMOVE THE TWO CONNECTORS (ONE BLACK WIRE AND ONE BLUE)
FROM THE THERMISTOR

Next: p710, !f711

GAS RATE

Next: p712, f713

TEMPERATURE DIFFERENTIAL FLOW RETURN

TURN CH TEMPERATURE

Next: !p724, ?726, ?728

PUMP RUNS CH DEMAND

CH THERMOSTAT SET TO 70°C

Next: p666, f756

VOLTAGE AT PUMP

REMOVE THE COVER FROM THE PUMP
APPLY DEMAND

Next: !p759, !f760

PUMP RUNS CH DEMAND

CH THERMOSTAT SET TO 70°C

Next: p177, f767

VOLTAGE AT PUMP

REMOVE THE COVER FROM THE PUMP
APPLY DEMAND

Next: !p770, !f771

PUMP RUNS CH DEMAND

CH THERMOSTAT SET TO 70°C

Next: p226, f800

VOLTAGE AT PUMP

REMOVE THE COVER FROM THE PUMP
APPLY DEMAND

Next: !p803, !f804

PUMP RUNS CH DEMAND

CH THERMOSTAT SET TO 70°C

Next: p957, f830

VOLTAGE AT PUMP

REMOVE THE COVER FROM THE PUMP
APPLY DEMAND

Next: !p833, !f834

EXTERNAL BYPASS

Next: p228, !f884

RESISTANCE FAN AND HARNESS

REMOVE CONNECTOR X20 FROM PCB

Next: !p886, f887

RESISTANCE FUSE F2 ( APPLIANCE)

REMOVE FUSE FROM FUSE AND HOLDER FROM PCB

Next: p896, f893

VOLTAGE TO DISPLAY

BOTH TEMPERATURE DIALS UP TO MAX

Next: !p898, !f897

TIGHTNESS TEST GAS VALVE

Next: p915, !f916

LOCKOUT RESET F61 / F62

ON-OFF SWITCH ON

Next: !p917, !f918

PUMP LIMPET TEST

Next: p958, !f959

EXTERNAL BYPASS SYSTEM

Next: p960, !f961

RESISTANCE SENSOR TEMP FLOW

LOCATE THE FLOW THER

Next: p962, !f963

RESISTANCE SENSOR TEMP RETURN

REMOVE THE TWO CONNECTORS (ONE BLACK WIRE AND ONE BLUE)
FROM THE THERMISTOR

Next: p964, !f965

CONDENSATE PIPE

Next: !p966, !f967

CONDENSATE PIPE

Next: p972, !f973

INSPECTION FLUE

Next: p974, !f975

ELECTRODE LEAD

Next: p976, !f977

INSPECTION ELECTRODE AND GAP

Next: p978, !f979

INSPECTION BURNER AND ELECTRODE GAP

REMOVE BURNER DOOR ASSEMBLY FROM APPLIANCE

Next: p980, ?982, ?984

INSPECTION HEAT EXCHANGER PRIMARY (FLUE WAYS)

Next: !p986, !f987

CONDENSATE PIPE

Next: p989, !f990

INSPECTION FLUE

Next: p991, !f992

INSPECTION BURNER

REMOVE THE BURNER

Next: p993, !f994

INSPECTION HEAT EXCHANGER PRIMARY (FLUE WAYS)

Next: !p995, !f996

INSPECTION BURNER

REMOVE THE BURNER

Next: p1000, !f1001

System Information

  • Total Tests: 315
  • Sequence Logic: Decoded from encrypted .seq file
  • Navigation: Dynamic based on pass/fail results
  • Source: 4731307 GW SWIFTFLOW 100 SIT Control