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:

47 415 09 IDEAL RESPONSE FF80

WARNING - IMPORTA

Next: &15, *

APPLIANCE APPEARS SATISFACTORY

Next: nff

PUMP OVERRUN

Next: &nff, !f222

RE-IGNITE DELAY

Next: &1, !f223

CH MODULATION

BOILER CH THERMOSTAT TO MAXIMUM
CONNECT U-GAUGE TO THE GAS VALVE OUTLET PRESSURE TEST POINT

Next: &2, f211

SYSTEM PRESSURE RISE

BOILER CH THERMOSTAT TO MAXIMUM

Next: &3, !f210

CH OPERATION

BOILER CH THERMOSTAT TO MAXIMUM

Next: &4, ?172, ?174, ?176, ?178

CH BURNER IGNITES

Next: &5, f317

DHW MODULATION

CONNECT A U-GAUGE TO

Next: &6, ?143, ?145, ?147

HOT WATER OPERATION

Next: &7, ?135, ?137

DHW FULL GAS PRESSURE

ATTACH U-GAUGE TO BURNER PRESSURE TEST POINT

Next: &8, f114

DHW BURNER ESTABLISHED

ATTACH U-GAUGE TO BURNER PRESSURE TEST POINT

Next: &9, f266

DHW BURNER IGNITES

REFIT INNER SEALING PANEL
ATTACH U-GAUGE TO BURNER PRESSURE TEST POINT

Next: &10, ?58, ?60

DHW FAN RUNS

REMOVE INNER COVER

Next: &11, f23

DHW FLOW RATE

Next: &12, f289

PANEL REMOVAL

Next: &13, !f16

DHW FULL GAS PRESSURE

SENSOR (DHW)

Next: End

FAN VOLTAGE (FAN DISCONNECTED)

FAN HARNESS

Next: End

FAN VOLTAGE (FULL)

FAN HARNESS

Next: End

FAN VOLTAGE (FULL)

SENSING PIPE ASSEMBLY

Next: End

DHW FULL GAS PRESSURE

INLET PRESSURE

Next: End

DHW FULL GAS PRESSURE

FLUE

Next: End

GAS INLET PRESSURE

SENSING PIPE ASSEMBLY

Next: End

HOT WATER OPERATION

SENSOR (DHW)

Next: End

HOT WATER OPERATION

BURNER INJECTOR

Next: End

BURNER PRESSURE DOES NOT REDUCE

SENSING PIPE ASSEMBLY

Next: End

BURNER PRESSURE REDUCES, BURNER GOES OUT BUT FAN STILL RUNS

SENSING PIPE ASSEMBLY

Next: End

DHW RUNS HOT THEN COLD WITH BOILER CYCLING

SENSOR (DHW)

Next: End

ELECTRICAL CHECKS

SAFETY CHECKS

Next: End

CH OPERATION

SENSOR (CH)

Next: End

CH OPERATION

CH POTENTIOMETER

Next: End

RADIATORS COOL BUT BOILER UP TO TEMPERATURE

DHW FLOW SWITCH ASSEMBLY

Next: End

RADIATORS COOL BUT BOILER UP TO TEMPERATURE

PUMP

Next: End

FAN PRESSURE (IGNITION)

PCB 38

Next: End

AIR PRESSURE SWITCH (VOLTAGE OUT)

PCB 38

Next: End

BURNER PRESSURE DOES NOT REDUCE

SENSOR (DHW)

Next: End

RADIATORS DO NOT HEAT, BOILER NOISY

DHW FLOW SWITCH ASSEMBLY

Next: End

RADIATORS DO NOT HEAT, BOILER NOISY

PUMP

Next: End

SYSTEM PRESSURE RISE

EXPANSION VESSEL

Next: End

CH MODULATION

SENSOR (CH)

Next: End

CH MODULATION

CH POTENTIOMETER

Next: End

PUMP OVERRUN

PCB 38

Next: End

RE-IGNITE DELAY

PCB 38

Next: End

BURNER PRESSURE CORRECT, NO IGNITION

PCB 37 (SUPERSEDED BY 41)

Next: End

DHW BURNER IGNITES

SPARK GENERATOR ASSEMBLY

Next: End

DHW BURNER IGNITES

IGNITION SPARK ELECTRODES

Next: End

DHW BURNER IGNITES

BURNER INJECTOR

Next: End

DHW BURNER ESTABLISHES

FLUE

Next: End

FLAME SENSE CHARGE

PCB 37 (SUPERSEDED BY 41)

Next: End

DHW NURNER ESTABLISHES

FLAME SENSE ELECTRODE LEAD

Next: End

DHW FLOW RATE

FLOW ADJUSTER

Next: End

DHW FLOW RATE

DHW INLET FILTER

Next: End

DHW FLOW RATE

MAINS WATER SUPPLY

Next: End

DHW FAN RUNS

Next: End

DHW FAN RUNS

ROCKER SWITCH (MAINS)

Next: End

CH SWITCH VOLTAGE (INPUT)

PCB 38

Next: End

CH BURNER IGNITION

PROGRAMME CONTROL BLOCK LINK

Next: End

CH BURNER IGNITES

SENSOR (CH)

Next: End

CH BURNER IGNITES

CH POTENTIOMETER

Next: End

DHW FAN RUNS

BOILER OVERHEAT THERMOSTAT

Next: End

DHW FAN RUNS

NON-RESETTABLE OVERHEAT

Next: End

DHW FAN RUNS

SYSTEM PRESSURE

Next: End

DHW FAN RUNS

FUSE F2

Next: End

DHW OVERHEAT THERMOSTAT VOLTAGE

PCB 38

Next: End

DHW FAN RUNS

FUSE F1 (PCB 38)

Next: End

DHW FAN RUNS

DHW FLOW SWITCH ASSEMBLY

Next: End

DHW FAN RUNS

SENSOR (DHW)

Next: End

FAN VOLTAGE (FULL) (FAIL)

FAN HARNESS

Next: End

FAN VOLTAGE (FULL) (PASS)

FAN HARNESS

Next: End

AIR PRESSURE SWITCH (VOLTAGE OUT)

FLUE

Next: End

DHW BURNER IGNITES

FUSE F1 (PCB 37)

Next: End

FAN VOLTAGE IGNITION (FAN DISCONNECTED)

FAN HARNESS

Next: End

FAN HARNESS AND CONNECTIONS

FAN HARNESS

Next: End

DHW BURNER IGNITES

SENSING PIPE ASSEMBLY

Next: End

DHW BURNER IGNITES

GAS VALVE

Next: End

DHW BURNER IGNITES

GAS VALVE

Next: End

DHW BURNER IGNITES

INLET PRESSURE

Next: End

FAN PRESSURE (IGNITION)

FLUE

Next: End

FAN VOLTAGE (FAN DISCONNECTED)

FAN ASSEMBLY

Next: End

FAN SENSING PIPE ASSEMBLY

FAN ASSEMBLY

Next: End

DHW FULL GAS PRESSURE

GAS VALVE

Next: End

DHW HEAT EXCHANGER NOISY

HEAT EXCHANGER ASSEMBLY

Next: End

HEAT EXCHANGER QUIET, DHW LOW TEMPERATURE

HEAT EXCHANGER ASSEMBLY

Next: End

BURNER PRESSURE DOES NOT REDUCE

GAS VALVE

Next: End

BURNER PRESSURE REDUCES, BURNER GOES OUT BUT FAN STILL RUNS

GAS VALVE

Next: End

CH OPERATION

HEAT EXCHANGER ASSEMBLY

Next: End

RADIATORS COOL BUT BOILER UP TO TEMPERATURE

Next: End

FAN VOLTAGE (FAN DISCONNECTED)

PCB 38

Next: End

DHW FULL GAS PRESSURE

PCB 38

Next: End

BURNER PRESSURE DOES NOT REDUCE

PCB 38

Next: End

DHW RUNS HOT THEN COLD WITH BOILER CYCLING

PCB 38

Next: End

BOILER AND SYSTEM TEMPERATURE LOW

PCB 38

Next: End

RADIATORS COOL BUT BOILER UP TO TEMPERATURE

PCB 38

Next: End

RADIATORS DO NOT HEAT, BOILER NOISY

Next: End

CH MODULATION

PCB 38

Next: End

RADIATORS DO NOT HEAT, BOILER NOISY

PCB 38

Next: End

DHW BURNER IGNITES

BURNER

Next: End

FLAME RECTIFICATION VOLTAGE

PCB 37 (SUPERSEDED BY 41)

Next: End

DHW BURNER ESTABLISHES

BURNER

Next: End

DHW BURNER ESTABLISHES

FLAME SENSE ELECTRODE

Next: End

HEAT EXCHANGER - WATER PRESENT

HEAT EXCHANGER - WATER PRESENT

Next: End

DHW FLOW RATE

HEAT EXCHANGER ASSEMBLY

Next: End

CH BURNER IGNITION

Next: End

CH BURNER IGNITION

ROCKER SWITCH (CH)

Next: End

CH BURNER IGNITES

ROCKER SWITCH (CH)

Next: End

DHW FAN RUNS

EMC FILTER

Next: End

CH BURNER IGNITION

KIT - TIMER - INTERNAL

Next: End

CH BURNER IGNITES

WIRING MAINS BLOCK TO PROGRAMMER

Next: End

CH SENSOR RESISTANCE

PCB 38

Next: End

DHW FAN RUNS

DHW OVERHEAT THERMOSTAT

Next: End

DHW FAN RUNS

WATER PRESSURE SWITCH

Next: End

DHW FAN RUNS

E02-144 TRANSFORMER

Next: End

FAN VOLTAGE (FULL) (FAIL)

FAN ASSEMBLY

Next: End

FAN VOLTAGE (FULL) (PASS)

FAN ASSEMBLY

Next: End

DHW BURNER IGNITES

AIR PRESSURE SWITCH

Next: End

BURNER PRESSURE INCORRECT

PCB 37 (SUPERSEDED BY 41)

Next: End

FAN VOLTAGE IGNITION (FAN DISCONNECTED)

FAN ASSEMBLY

Next: End

FAN HARNESS AND CONNECTIONS

FAN ASSEMBLY

Next: End

DHW BURNER IGNITES

GAS VALVE

Next: End

DHW HEAT EXCHANGER NOISY

CHARACTERISTIC TEST FROM HOT WATER OPERATION

Next: !p136

HEAT EXCHANGER QUIET, DHW LOW TEMPERATURE

CHARACTERISTIC TEST FROM HOT WATER OPERATION

Next: p138

BURNER PRESSURE DOES NOT REDUCE

CHARACTERISTIC TEST FROM DHW MODULATION

Next: p144

BURNER PRESSURE REDUCES, BURNER GOES OUT BUT FAN STILL RUNS

CHARACTERISTIC TEST FROM DHW MODULATION

Next: p146

DHW RUNS HOT THEN COLD WITH BOILER CYCLING

CHARACTERISTIC TEST FROM DHW MODULATION

Next: p148

BOILER AND SYSTEM TEMPERATURE LOW

CHARACTERISTIC TEST FROM CH OPERATION

Next: p173

RADIATORS COOL BUT BOILER UP TO TEMPERATURE

CHARACTERISTIC TEST FROM CH OPERATION

Next: p175

RADIATORS DO NOT HEAT, BOILER NOISY

CHARACTERISTIC TEST FROM CH OPERATION

Next: p177

RADIATORS HEAT OK BUT HEAT EXCHANGER NOISY

CHARACTERISTIC TEST FROM CH OPERATION

Next: !p179

ELECTRODE OR LEAD CONDITION POOR OR GAP INCORRECT

CHARACTERISTIC TEST FROM FLAME SENSE ELECTRODE

Next: !p283

WATER PRESENT IN HEAT EXCHANGER WHEN BURNER REMOVED

CHARACTERISTIC TEST FROM FLAME SENSE ELECTRODE

Next: !p285

VOLTAGE ABSENT ON ONE TEST BUT PRESENT ON OTHER

CHARACTERISTIC TEST FROM VOLTAGE PROGRAMMER OUTPUT

Next: !p331

VOLTAGE ABSENT ON BOTH TESTS

CHARACTERISTIC TEST FROM VOLTAGE PROGRAMMER OUTPUT

Next: !p333

BURNER PRESSURE INCORRECT

CHARACTERISTIC TEST FROM DHW BURNER IGNITES

Next: p59

BURNER PRESSURE CORRECT, NO IGNITION

CHARACTERISTIC TEST FROM DHW BURNER IGNITES

Next: p61

18/11/2016 13:09:01 1607_1_50_1 16/12/2016 10:50:54

18/11/2016 13:23:45

Next: End

FAN DIFFERENTIAL PRESSURE

Next: p75, f74

FUSE F1 (PCB 37)

REMOVE THE FUSE F1 LOCATED AT THE TOP L/H SIDE OF PCB 37 (MARKED F1)

Next: !p73, !f72

FLUE

Next: !p71, !f70

GAS VALVE SOLENOID 1 RESISTANCE

DISCONNECT BLACK PLUG FROM THE LOWER SOLENOID

Next: p90, !f89

FAN HARNESS & CONNECTIONS

DISCONNECT THE FAN HARNESS WHICH RUNS FROM CON 9 ON PCB38 TO THE FAN

Next: p85, !f84

FAN HARNESS & CONNECTIONS

DISCONNECT THE FAN HARNESS WHICH RUNS FROM CON 9 ON PCB38 TO THE FAN

Next: !p83, !f82

FAN SENSING PIPE ASSEMBLY

Next: !p87, !f86

GAS VALVE 2 SOLENOID RESISTANCE

DISCONNECT BLACK PLUG FROM THE UPPER SOLENOID

Next: p92, !f91

GAS INLET PRESSURE

ATTACH A U-GAUGE TO THE GAS VALVE INLET PRESSURE TEST POINT

Next: p94, !f93

FLUE

Next: !p96, !f95

System Information

Total Tests: 215

Sequence Logic: Decoded from encrypted .seq file

Navigation: Dynamic based on pass/fail results

Source: 4731307 GW SWIFTFLOW 100 SIT Control