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:

VOKERA EXCELL 80SP

WARNING - IMPORTA

Next: &17, *

NO FAULT FOUND

Next: nff

EXCESSIVE SYSTEM PRESSURE RISE

MODE SELECTOR SWITCH TO C/H POSITION.
CENTRAL HEATING THERMOSTAT TO MAXIMUM.

Next: &nff, !f105

CENTRAL HEATING

MODE SELECTOR SWITCH TO C/H POSITION.
CENTRAL HEATING THERMOSTAT TO MAXIMUM.

Next: &1, ?99, ?101, ?103

HOT WATER

MODE SELECTOR SWITCH TO DHW POSITION.
DHW STAT TO MAX.

Next: &2, ?86, ?88, ?90

C/H MODULATION

MODE SELECTOR SWITCH

Next: &3, !f85

C/H BURNER IGNITES

SET THE MODE SELECTOR SWITCH TO C/H POSITION.

Next: &4, !f84

C/H FAN RUNS (HIGH SPEED)

SET THE MODE SELECTOR SWITCH TO C/H POSITION.

Next: &5, f81

DHW MODULATION

MODE SELECTOR SWITCH

Next: &6, ?134, ?136

DHW BURNER IGNITES

MODE SELECTOR SWITCH TO DHW POSITION

Next: &7, f59

DHW FAN RUNS (HIGH SPEED)

SET THE MODE SELECTOR SWITCH TO DHW POSITION.

Next: &8, f40

DHW DEMAND

MODE SELECTOR SWITCH IN OFF POSITION.

Next: &9, f33

SLOW FAN

Next: &10, f20

PILOT FLAME FAILURE

SWITCH OFF GAS SUPPLY

Next: &11, !f19

PILOT ESTABLISHED

Next: &12, f13

PILOT IGNITES

Next: &13, f10

ELECTRODE SPARKING

Next: &14, f123

VOKERA EXCELL 80SP

G.C. NUMBER 47 094 1

Next: &15, !f1

ELECTRICAL SAFETY CHECKS

ELECTRICAL CHECKS

Next: End

EXCESSIVE SYSTEM PRESSURE RISE

EXPANSION VESSEL

Next: End

PILOT IGNITES

PILOT INJECTOR

Next: End

SPLIT OR WORN

BOILER FLOW SWITCH DIAPHRAGM

Next: End

ELECTRODE SPARKING

EARTH LEAD

Next: End

ELECTRODE SPARKING

SPARK ELECTRODE LEAD

Next: End

DHW MODULATION

THERMISTOR

Next: End

DHW MODULATION

ELECTRONIC CONTROL BOX (PCB)

Next: End

MAX ONLY

MODULATION COIL

Next: End

NO POWER TO MODUREG

ELECTRONIC CONTROL BOX (PCB)

Next: End

PILOT ESTABLISHED

THERMOCOUPLE

Next: End

DHW MODULATION 1

THERMISTOR

Next: End

DHW MODULATION

MODULATION COIL

Next: End

PILOT FLAME FAILURE

THERMO ELECTRIC VALVE

Next: End

SLOW FAN

2A FUSE.

Next: End

SLOW FAN

MAINS POWER - 240V AC SUPPLY

Next: End

2A FUSE (PCB)

ELECTRONIC CONTROL BOX (PCB)

Next: End

SLOW FAN

FAN (SLOW SPEED) 560 OHM RESISTOR

Next: End

DHW DEMAND

DHW THROTTLE

Next: End

DHW DEMAND

DHW DIAPHRAGM

Next: End

DHW FAN RUNS (HIGH SPEED)

DHW MICROSWITCH

Next: End

WATER PUMP RUNNING

ELECTRONIC CONTROL BOX (PCB)

Next: End

DHW FAN RUNS (HIGH SPEED)

BOILER FLOW MICROSWITCH

Next: End

DHW FAN RUNS (HIGH SPEED)

THERMISTOR

Next: End

DHW FAN RUNS (HIGH SPEED)

BOILER FLOW SWITCH DIAPHRAGM

Next: End

DHW BURNER IGNITES

AIR PRESSURE SWITCH TUBES

Next: End

DHW BURNER IGNITES

FLUE

Next: End

DHW BURNER IGNITES

FLUE VENTURIS

Next: End

DHW BURNER IGNITES

ELECTRONIC CONTROL BOX (PCB)

Next: End

DHW BURNER IGNITES

GAS VALVE SOLENOID

Next: End

CH FAN RUNS (HIGH SPEED)

ELECTRONIC CONTROL BOX (PCB)

Next: End

CH BURNER IGNITES

ELECTRONIC CONTROL BOX (PCB)

Next: End

CH MODULATION

ELECTRONIC CONTROL BOX (PCB)

Next: End

CENTRAL HEATING

EARTH LEAD

Next: End

CH NOISY OPERATION, DHW PREVIOUSLY OK

Next: End

CH QUIET OPERATION, DHW PREVIOUSLY OK

Next: End

DHW FAN RUNS (HIGH SPEED)

BOILER FLOW SWITCH VENTURI

Next: End

STUCK

BOILER FLOW MICROSWITCH

Next: End

PILOT IGNITES

THERMO ELECTRIC VALVE

Next: End

RESTRICTED OR BLOKED

BOILER FLOW SWITCH VENTURI

Next: End

ELECTRODE SPARKING

SPARK ELECTRODE

Next: End

ELECTRODE SPARKING

PIEZO IGNITER

Next: End

MAX RATE ONLY

GAS VALVE ASSEMBLY

Next: End

PILOT ESTABLISHED

HIGH LIMIT THERMOSTAT

Next: End

PILOT ESTABLISHED

THERMO ELECTRIC VALVE

Next: End

DHW MODULATION

GAS VALVE ASSEMBLY

Next: End

SLOW FAN

FAN

Next: End

SLOW FAN RESISTOR

ELECTRONIC CONTROL BOX (PCB)

Next: End

DHW DEMAND

DHW FILTER

Next: End

DHW DEMAND

DHW VENTURI

Next: End

DHW FAN RUNS (HIGH SPEED)

PUMP

Next: End

DHW FAN RUNS (HIGH SPEED)

AIR PRESSURE SWITCH

Next: End

DHW FAN RUNS (HIGH SPEED)

FAN

Next: End

AIR PRESSURE DIFFERENTIAL SWITCH: NO AIR

ELECTRONIC CONTROL BOX (PCB)

Next: End

DHW BURNER IGNITES

AIR PRESSURE SWITCH

Next: End

DHW BURNER IGNITES

BURNER INJECTORS

Next: End

DHW BURNER IGNITES

GAS VALVE ASSEMBLY

Next: End

CH FAN RUNS (HIGH SPEED)

ROOM THERMOSTAT LINK

Next: End

DHW QUIET OPERATION, COLD RADIATORS

SECONDARY HEAT EXCHANGER

Next: End

HOT WATER

DIVERTER VALVE

Next: End

CENTRAL HEATING

SECONDARY HEAT EXCHANGER

Next: End

HOT WATER

PRIMARY HEAT EXCHANGER

Next: End

CH NOISY OPERATION, DHW PREVIOUSLY OK

SECONDARY HEAT EXCHANGER

Next: End

CH QUIET OPERATION, DHW PREVIOUSLY OK

SECONDARY HEAT EXCHANGER

Next: End

CH NOISY OPERATION, DHW PREVIOUSLY OK

CHARACTERISTIC TEST FROM CENTRAL HEATING

Next: !p102

CH QUIET OPERATION, DHW PREVIOUSLY OK

CHARACTERISTIC TEST FROM CENTRAL HEATING

Next: !p104

LIGHTS ON MAX BUT DOESNT MODULATE

CHARACTERISTIC TEST FROM DHW MODULATION

Next: p146

DOESNT LIGHT ON MAX

CHARACTERISTIC TEST FROM DHW MODULATION

Next: p169

DHW NOISY OPERATION

CHARACTERISTIC TEST FROM HOT WATER

Next: p87

DHW QUIET OPERATION, COLD RADIATORS

CHARACTERISTIC TEST FROM HOT WATER

Next: !p89

DHW QUIET OPERATION, WARM RADIATORS

CHARACTERISTIC TEST FROM HOT WATER

Next: !p91

CH NOISY OPERATION DHW PREVIOUSLY NOISY

CHARACTERISTIC TEST FROM CENTRAL HEATING

Next: !p94

CH NOISY OPERATION, DHW PREVIOUSLY OK

CHARACTERISTIC TEST FROM CENTRAL HEATING

Next: !p96

CH QUIET OPERATION,DHW PREVIOUSLY OK

CHARACTERISTIC TEST FROM CENTRAL HEATING

Next: !p98

CH NOISY OPERATION, DHW PREVIOUSLY NOISY

CHARACTERISTIC TEST FROM CENTRAL HEATING

Next: !p100

03/01/2018 14:20:41 1712_1_50_1 31/01/2018 09:56:42

09/01/2018 09:29:58

Next: End

PILOT INJECTOR

Next: !p12, !f11

BOILER FLOW SWITCH DIAPHRAGM

Next: !p121, !f122

SPARK ELECTRODE LEAD

REMOVE SPARK ELECTRODE LEAD FROM SPARK ELECTRODE.

Next: !p124, f127

EARTH LEAD: PIEZO

Next: p130, !f129

HIGH LIMIT THERMOSTAT

Next: !p18, f14

THERMOCOUPLE VOLTAGE

Next: !p17, !f16

BOILER FLOW MICROSWITCH (NORMALLY CLOSED)

MODE SELECTOR SWITCH DHW POSITION.

Next: p22, f21

2A FUSE (PCB)

Next: p23, !f24

SLOW FAN RESISTOR

DISCONNECT RESISTOR FLYING LEADS AT ADJACENT PLUG

Next: !p32, !f31

DHW MIN FLOW RATE

Next: p35, f34

DHW THROTTLE SETTING

Next: !p37, !f36

BOILER FLOW SWITCH OPERATION

MODE SELECTOR SWITCH TO DHW POSITION.

Next: p42, f41

WATER PUMP RUNNING

MODE SELECTOR SWITCH TO DHW POSITION.

Next: p44, f43

DHW FLOW MICROSWITCH

MODE SELECTOR SWITCH TO DHW POSITION.

Next: p46, !f45

BOILER FLOW MICROSWITCH (NORMALLY OPEN)

MODE SELECTOR SWITCH TO DHW POSITION.

Next: !p52, !f51

THERMISTOR: SHORT CIRCUIT

CAREFULLY DISCONNECT THERMISTOR LEADS

Next: !p56, !f55

AIR PRESSURE DIFF SWITCH: AIR DETECT

MODE SELECTOR SWITCH TO DHW POSITION.

Next: p61, f60

AIR PRESSURE DIFF SWITCH TUBES

Next: p63, !f62

GV OPERATOR RESISTANCE

REMOVE ONE WIRE FROM MAIN GAS VALVE OPERATOR SOLENOID

Next: !p73, !f72

C/H DEMAND VOLTAGE (IN)

MODE SELECTOR SWITCH TO C/H POSITION

Next: !p83, !f82

INPECTION FLOW SWITCH SPINDLE

Next: !p119, f120

RESISTANCE SPARK ELECTRODE LEAD

Next: !p131, !f132

THERMISTOR RESISTANCE

CAREFULLY UNPLUG THE LEADS FROM THE THERMISTOR

Next: p150, !f148

DHW MODULATION VOLTAGE

MODE SELECTOR SWITCH

Next: p154, !f152

MODULATION COIL RESISTANCE

Next: !p155, !f156

VOLTAGE IGNITION RATE DHW

MODE SELECTOR SWITCH TO DHW POSITION.
TURN DHW STAT TO MAXIMUM.

Next: p179, !f159

THERMISTOR RESISTANCE

CAREFULLY UNPLUG THE LEADS FROM THE THERMISTOR

Next: p158, !f177

MODULATION COIL RESISTANCE

Next: !p180, !f181

SLOW FAN VOLTAGE

MODE SELECTOR SWITCH DHW POSITION.

Next: !p30, f29

MAINS POWER SUPPLY

Next: p26, !f25

SELECTOR SWITCH ON VOLTAGE

MODE SELECTOR SWITCH TO DHW POSITION.

Next: p106, !f27

DHW FLOW SWITCH DIAPHRAGM

DHW WATER OFF AND BOILER DRAINED.

Next: !p39, !f38

AIR PRESSURE DIFFERENTIAL SWITCH: NO AIR

MODE SELECTOR SWITCH TO DHW POSITION.

Next: p50, f49

BOILER FLOW SWITCH DIAPHRAGM

Next: !p112, !f57

WATER PUMP SUPPLY

MODE SELECTOR SWITCH TO DHW POSITION

Next: !p48, !f47

FAN SUPPLY

MODE SELECTOR SWITCH TO DHW POSITION.

Next: !p54, f53

GAS VALVE SUPPLY VOLTAGE

MODE SELECTOR SWITCH TO DHW POSITION.

Next: p69, !f68

FLUE

Next: p65, !f64

FLUE VENTURIS

Next: !p67, !f66

BURNER PRESSURE

MODE SELECTOR SWITCH TO DHW POSITION
CONNECT 'U' GAUGE TO BURNER PRESSURE TEST POINT

Next: !p71, f70

CENTRAL HEATING

MODE SELECTOR SWITCH TO C/H POSITION.
CENTRAL HEATING THERMOSTAT TO MAXIMUM.

Next: !p92, ?93, ?95, ?97

System Information

Total Tests: 135

Sequence Logic: Decoded from encrypted .seq file

Navigation: Dynamic based on pass/fail results

Source: 4731307 GW SWIFTFLOW 100 SIT Control