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:

IMI RANGE POWERMAX 135

G.C. NUMBER 41 389 0

Next: &16, *

APPLIANCE APPEARS SATISFACTORY

Next: nff

CENTRAL HEATING.

BOILER THERMAL STORE

Next: &nff, !f122

DOMESTIC HOT WATER TEMPERATURE

BOILER THERMAL STORE

Next: &1, !f121

HOT WATER FLOW RATE.

{ISOLATEMAINSPOWER}
TURN HOT WATER TAP ON.

Next: &2, ?113, ?115

PUMP RUNS.

BOILER THERMAL STORE

Next: &3, f109

CENTRAL HEATING DEMAND.

MODELS WITH PROGRAMM

Next: &4, ?95, ?97

GREEN NEON OFF (BOILER UP TO TEMPERATURE).

BOILER THERMAL STORE

Next: &5, !f94

SUSTAINED GREEN NEON.

BOILER THERMAL STORE

Next: &6, f73

AIR DETECTED.

BOILER THERMAL STORE

Next: &7, f65

FAN RUNS.

BOILER THERMAL STORE

Next: &9, f54

FULL SEQUENCE IGNITION BOX SUPPLY.

BOILER THERMAL STORE

Next: &10, ?39, ?41

ORANGE NEON ILLUMINATED

APPLIANCE SWITCHED O

Next: &11, ?21, ?23

FROST THERMOSTAT (IF FITTED).

{ISOLATEMAINSPOWER}<

Next: &12, !f20

COLD START THERMOSTAT (NORMALLY CLOSED).

{ISOLATEMAINSPOWER}<

Next: &13, !f19

SYSTEM CHECKS.

{ISOLATEMAINSPOWER}

Next: &14, !f18

IMI RANGE POWERMAX 135

G.C. NUMBER 41 389 0

Next: &15, !f17

CH TIMER ABSENT

ROOM THERMOSTAT

Next: End

CH TIMER PRESENT

APPLIANCE SWITCH

Next: End

CH TIMER PRESENT

ROOM THERMOSTAT

Next: End

PUMP RUNS

COLD START THERMOSTAT

Next: End

DHW FLOW RATE TOO LOW

DHW FILTER

Next: End

DHW FLOW RATE TOO LOW

FLOW RESTRICTOR

Next: End

DOMESTIC HOT WATER TEMPERATURE

BLENDER VALVE

Next: End

CENTRAL HEATING

Next: End

ELECTRICAL SAFETY CHECKS

ELECTRICAL SAFETY CHECKS

Next: End

SYSTEM CHECK

SYSTEM CHECK

Next: End

COLD START THERMOSTAT

COLD START THERMOSTAT

Next: End

FROST THERMOSTAT (IF FITTED)

FROST THERMOSTAT

Next: End

EMC FILTER ABSENT

3A FUSE (FUSE SPUR)

Next: End

EMC FILTER ABSENT

9 WAY CONNECTOR BLOCK

Next: End

EMC FILTER PRESENT

3A FUSE (FUSE SPUR)

Next: End

EMC FILTER PRESENT

EMC FILTER

Next: End

EMC FILTER PRESENT

9 WAY CONNECTOR BLOCK

Next: End

LIMIT THERMOSTAT ABSENT

APPLIANCE SWITCH

Next: End

LIMIT THERMOSTAT ABSENT

BOILER THERMOSTAT

Next: End

LIMIT THERMOSTAT PRESENT

APPLIANCE SWITCH

Next: End

LIMIT THERMOSTAT PRESENT

BOILER THERMOSTAT

Next: End

2A FULL SEQUENCE IGNITION BOX FUSE

2A FULL SEQUENCE IGNITION BOX FUSE

Next: End

FAN RUNS

AIR PRESSURE SWITCH TUBES

Next: End

FAN RUNS

CAPACITOR

Next: End

AIR DETECTED

AIR PRESSURE SWITCH TUBES

Next: End

AIR DETECTED

FLUE ASSEMBLY.

Next: End

BURNER PRESSURE

EV 1 AND EV 2 SOLENOIDS

Next: End

BURNER PRESSURE

FULL SEQUENCE IGNITION BOX

Next: End

SUSTAINED GREEN NEON

ELECTRODE LEAD

Next: End

SUSTAINED GREEN NEON

SPARK ELECTRODE

Next: End

SUSTAINED GREEN NEON

INJECTOR ASSEMBLY

Next: End

SUSTAINED GREEN NEON

BURNER

Next: End

SUSTAINED GREEN NEON

GAS SUPPLY

Next: End

SUSTAINED GREEN NEON

9 WAY CONNECTOR BLOCK

Next: End

GREEN NEON OFF (BOILER UP TO TEMPERATURE)

BOILER THERMOSTAT

Next: End

C/H TIMER ABSENT

C/H SWITCH

Next: End

CH TIMER ABSENT

9 WAY CONNECTOR BLOCK

Next: End

CH TIMER PRESENT

PROGRAMMER

Next: End

CH TIMER PRESENT

9 WAY CONNECTOR BLOCK

Next: End

PUMPS

PUMP

Next: End

DHW FLOW RATE TOO HIGH

FLOW RESTRICTOR

Next: End

DHW FLOW RATE TOO LOW

SECONDARY HEAT EXCHANGER (SCALED)

Next: End

EMC FILTER ABSENT

MAINS SUPPLY

Next: End

EMC FILTER ABSENT

ORANGE NEON (ELECTRICAL SUPPLY ON)

Next: End

EMC FILTER PRESENT

MAINS SUPPLY

Next: End

EMC FILTER PRESENT

ORANGE NEON (ELECTRICAL SUPPLY ON)

Next: End

LIMIT THERMOSTAT ABSENT

9 WAY CONNECTOR BLOCK

Next: End

LIMIT THERMOSTAT PRESENT

9 WAY CONNECTOR BLOCK

Next: End

HIGH-LIMIT THERMOSTAT

HIGH-LIMIT THERMOSTAT

Next: End

FAN RUNS

FULL SEQUENCE IGNITION BOX

Next: End

FAN RUNS

AIR PRESSURE SWITCH

Next: End

FAN RUNS

FAN

Next: End

AIR DETECTED

AIR PRESSURE SWITCH

Next: End

BURNER PRESSURE

GAS VALVE ASSEMBLY

Next: End

SUSTAINED GREEN NEON

FULL SEQUENCE IGNITION BOX

Next: End

SUSTAINED GREEN NEON

GREEN NEON (BURNER ON)

Next: End

DHW FLOW RATE TOO LOW

CHARACTERISTIC TEST FROM HOT WATER FLOW RATE

Next: p114

DHW FLOW RATE TOO HIGH

CHARACTERISTIC TEST FROM HOT WATER FLOW RATE

Next: !p116

NEON NOT ILLUMINATED, EMC FILTER NOT FITTED

CHARACTERISTIC TEST FROM ORANGE NEON ILLUMINATED

Next: p22

NEON NOT ILLUMINATED, EMC FILTER FITTED

CHARACTERISTIC TEST FROM ORANGE NEON ILLUMINATED

Next: p24

MAINS VOLTAGE ABSENT, LIMIT THERMOSTAT NOT FITTED

CHARACTERISTIC TEST FROM FULL SEQUENCE IGNITION BOX SUPPLY

Next: p40

MAINS VOLTAGE ABSENT, LIMIT THERMOSTAT FITTED

CHARACTERISTIC TEST FROM FULL SEQUENCE IGNITION BOX SUPPLY

Next: p42

CH TIMER ABSENT

CHARACTERISTIC TEST FROM CENTRAL HEATING DEMAND

Next: p96

CH TIMER PRESENT

CHARACTERISTIC TEST FROM CENTRAL HEATING DEMAND

Next: p98

18/01/2018 13:13:45 1801_1_50_1 06/03/2018 13:16:20

02/02/2018 14:20:11

Next: End

SELECTOR SWITCH (TIMED) OPERATION.

SELECTOR SWITCH TO T

Next: !p106, !f105

PUMP SUPPLY VOLTAGE.

BOILER THERMAL STORE

Next: !p111, !f110

3 AMP FUSE - MAINS SUPPLY.

{ISOLATEMAINSPOWER}
MAINS POWER AT APPLIANCE FUSED SPUR OFF.
REMOVE THE EXTERNAL 3 AMP FUSE.

Next: !p28, !f27

3 AMP FUSE - MAINS SUPPLY.

{ISOLATEMAINSPOWER}
MAINS POWER AT APPLIANCE FUSED SPUR OFF.
REMOVE THE EXTERNAL 3 AMP FUSE.

Next: !p34, !f33

SELECTOR SWITCH (CONTINUOUS) OUTPUT VOLTAGE.

MODELS WITH PROGRAMM

Next: !p51, !f50

FAN SUPPLY OUTPUT.

BOILER THERMAL STORE

Next: p56, f55

FULL SEQUENCE IGNITION BOX - INTERNAL 2 AMP FUSE.

{ISOLATEMAINSPOWER}<

Next: !p58, !f57

AIR PRESSURE SWITCH TUBES.

{ISOLATEMAINSPOWER}
ENSURE APPLIANCE IS SWITCHED OFF.

Next: !p62, !f61

AIR PRESSURE SWITCH TUBES.

{ISOLATEMAINSPOWER}
ENSURE APPLIANCE IS SWITCHED OFF.

Next: p67, !f66

BURNER PRESSURE.

{ISOLATEMAINSPOWER}<

Next: p75, f74

EV1 & EV2 SOLENOID RESISTANCE.

{ISOLATEMAINSPOWER}<

Next: p77, !f76

ELECTRODE LEAD.

{ISOLATEMAINSPOWER}

Next: p83, !f82

ROOM THERMOSTAT/LINK.

{ISOLATEMAINSPOWER}<

Next: !p102, !f101

ROOM THERMOSTAT/LINK.

{ISOLATEMAINSPOWER}<

Next: !p108, !f107

DHW FILTER.

{ISOLATEMAINSPOWER}
DHW COLD WATER INLET OFF.

Next: p118, !f117

DHW FLOW RESTRICTOR.

{ISOLATEMAINSPOWER}
DHW COLD WATER INLET OFF.

Next: !p120, !f119

MAINS VOLTAGE SUPPLY.

Next: p26, f25

MAINS VOLTAGE SUPPLY.

Next: p32, f31

SELECTOR SWITCH SUPPLY.

{ISOLATEMAINSPOWER}<

Next: !p30, !f29

EMC FILTER.

{ISOLATEMAINSPOWER}
ENSURE APPLIANCE OFF AND 3A EXTERNAL FUSE IS REMOVED

Next: p36, !f35

SELECTOR SWITCH SUPPLY.

{ISOLATEMAINSPOWER}<

Next: !p38, !f37

SELECTOR SWITCH (CONTINUOUS) OUTPUT VOLTAGE.

MODELS WITH PROGRAMM

Next: p45, !f43

BOILER THERMOSTAT INPUT VOLTAGE.

SELECTOR SWITCH TO CONSTANT.
HEATING SWITCH TO ON.

Next: p49, f48

BOILER THERMOSTAT (COLD).

{ISOLATEMAINSPOWER}<

Next: !p47, !f46

BOILER THERMOSTAT (COLD).

{ISOLATEMAINSPOWER}<

Next: !p53, !f52

FAN VOLTAGE.

BOILER THERMAL STORE

Next: p60, f59

FAN CAPACITOR VOLTAGE.

BOILER THERMAL STORE

Next: !p64, !f63

FLUE ASSEMBLY.

Next: !p69, !f68

FULL SEQUENCE IGNITION BOX (FLAME SENSE OUTPUT).

BOILER THERMAL STORE

Next: p81, f80

SOLENOID SUPPLY.

ENSURE THERMAL STORE

Next: !p79, !f78

GREEN NEON VOLTAGE.

BOILER THERMAL STORE

Next: !p93, !f92

SPARK ELECTRODE.

{ISOLATEMAINSPOWER}<

Next: p85, !f84

INJECTOR ASSEMBLY.

{ISOLATEMAINSPOWER}
REMOVE AND INSPECT THE INJECTOR ASSEMBLY.

Next: p87, !f86

BURNER

{ISOLATEMAINSPOWER}<

Next: p89, !f88

GAS SUPPLY.

{ISOLATEMAINSPOWER}

Next: !p90, !f91

C/H - TIMER; ROCKER SWITCH OUTPUT.

MODELS WITH PROGRAMM

Next: p100, !f99

C/H - TIMER; ROCKER SWITCH OUTPUT.

MODELS WITH PROGRAMM

Next: p104, f103

System Information

  • Total Tests: 119
  • Sequence Logic: Decoded from encrypted .seq file
  • Navigation: Dynamic based on pass/fail results
  • Source: 4731307 GW SWIFTFLOW 100 SIT Control