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:

FERROLI 77 FF

WARNING - IMPORTA

Next: &23, *

APPLIANCE APPEARS SATISFACTORY

Next: nff

MODUREG BALANCE TUBE

Next: &nff, !f24

WATER PRESSURE RISE

SELECTOR SWITCH IN CH CONTINUOUS POSITION

Next: &1, !f25

CENTRAL HEATING OPERATION

SELECTOR SWITCH IN CH CONTINUOUS POSITION

Next: &2, ?26, ?28

DHW OPERATION

SELECTOR SWITCH IN HOT WATER POSITION

Next: &3, !f30

CH PUMP OVERRUN

SELECTOR SWITCH IN CH CONTINUOUS POSITION

Next: &4, !f31

CH BURNER MODULATION

SELECTOR SWITCH IN C

Next: &5, f32

CH HIGH BURNER

SELECTOR SWITCH IN C

Next: &6, f37

CH FAN RUNS (CH TIMED)

SELECTOR SWITCH IN CH TIMED POSITION

Next: &7, f138

CH FAN RUNS

SELECTOR SWITCH IN CH CONTINUOUS POSITION

Next: &8, f135

CH PUMP RUNS

SELECTOR SWITCH IN CH CONTINUOUS POSITION

Next: &9, f128

DHW BURNER MODULATION

SELECTOR SWITCH IN H

Next: &10, f123

DHW BURNER HIGH FLAME

SELECTOR SWITCH IN H

Next: &11, f118

DHW BURNER IGNITES

SELECTOR SWITCH IN HOT WATER POSITION

Next: &12, f113

FLAME FAILURE DEVICE

SELECTOR SWITCH IN HOT WATER POSITION

Next: &13, !f74

DHW PILOT ESTABLISHED

SELECTOR SWITCH IN HOT WATER POSITION
GAS ON

Next: &14, f106

DHW PILOT IGNITES

SELECTOR SWITCH IN HOT WATER POSITION.
GAS ON

Next: &15, f103

DHW SPARKING

SELECTOR SWITCH IN HOT WATER POSITION
COMBUSTION COVER ON

Next: &16, f75

DHW FAN RUNS

SELECTOR SWITCH IN HOT WATER POSITION

Next: &17, f63

SLOW FAN

SELECTOR SWITCH IN HOT WATER POSITION

Next: &18, f56

NO BOILER OPERATION

SELECTOR SWITCH IN HOT WATER POSITION

Next: &19, f49

DHW FLOW RATE

Next: &20, f44

IMPORTANT INFORMATION

THE COMBUSTION C

Next: &21, !f43

FERROLI 77 FF

G.C. NUMBER 47 267 0

Next: &22, !f42

DHW SPARKING

FLUE

Next: End

DHW PILOT IGNITES

PILOT BURNER INJECTOR

Next: End

DHW PILOT ESTABLISHED

OVERHEAT CUT-OFF THERMOSTAT

Next: End

DHW PILOT ESTABLISHED

THERMOCOUPLE

Next: End

DHW PILT ESTABLISHED

THERMOCOUPLE INTERRUPTER

Next: End

DHW BURNER IGNITES

PRINTED CIRCUIT BOARD

Next: End

DHW BURNER IGNITES

GAS VALVE

Next: End

DHW BURNER HIGH FLAME

DHW THERMISTOR

Next: End

DHW BURNER MODULATION

DHW THERMISTOR

Next: End

CH PUMP RUNS

ROOM THERMOSTAT

Next: End

CH PUMP RUNS

PRINTED CIRCUIT BOARD

Next: End

CH FAN RUNS

CH THERMISTOR

Next: End

CH FAN RUNS (CH TIMED)

TIMER / CLOCK

Next: End

CH FAN RUNS

CH POTENTIOMETER

Next: End

DHW FAN RUNS

FAN ASSEMBLY

Next: End

CH HIGH BURNER

CH POTENTIOMETER

Next: End

DHW SPARKING

GAS VALVE

Next: End

DHW SPARKING

CH LIMIT THERMOSTAT

Next: End

DHW SPARKING

DHW LIMIT THERMOSTAT

Next: End

MODULATING BALANCE TUBE

MODULATING BALANCE TUBE

Next: End

WATER PRESSURE RISE

EXPANSION VESSEL

Next: End

DHW OPERATION

HEAT EXCHANGER

Next: End

CH PUMP OVERRUN

PRINTED CIRCUIT BOARD

Next: End

CH BURNER MODULATION

CH THERMISTOR

Next: End

CH BURNER MODULATION

CH POTENTIOMETER

Next: End

CH HIGH BURNER

CH THERMISTOR

Next: End

ELECTRICAL CHECKS

ELECTRICAL CHECKS

Next: End

SYSTEM CHECKS

SYSTEM CHECKS

Next: End

DHW FLOW RATE

DHW INLET FILTER

Next: End

DHW FLOW RATE

DHW RESTRICTOR

Next: End

NO BOILER OPERATION

FROST THERMOSTAT

Next: End

NO BOILER OPERATION

DHW FLOW SWITCH

Next: End

NO BOILER OPERATION

SELECTOR SWITCH

Next: End

SLOW FAN

PCB FUSE

Next: End

SLOW FAN

Next: End

SLOW FAN

PRINTED CIRCUIT BOARD

Next: End

DHW FAN RUNS

PRESSURE SWITCH DAMPER

Next: End

DHW FAN RUNS

AIR PRESSURE SENSING TUBE

Next: End

DHW FAN RUNS

DHW FLOW SWITCH

Next: End

DHW FAN RUNS

DHW THERMISTOR

Next: End

FLAME FAILURE DEVICE

GAS VALVE

Next: End

DHW SPARKING

PRESSURE SWITCH DAMPER

Next: End

DHW SPARKING

AIR PRESSURE SENSING TUBE

Next: End

DHW SPARKING

ELECTRODE LEAD

Next: End

DHW SPARKING

SPARK GENERATOR

Next: End

DHW SPARKING

AIR PRESSURE SWITCH

Next: End

DHW PILOT IGNITES

GAS VALVE

Next: End

DHW PILOT IESTABLISHED

GAS VALVE

Next: End

DHW BURNER IGNITES

BURNER INJECTOR

Next: End

DHW BURNER HIGH FLAME

GAS VALVE

Next: End

DHW BURNER HIGH FLAME

PRINTED CIRCUIT BOARD

Next: End

DHW BURNER MODULATION

GAS VALVE

Next: End

DHW BURNER MODULATION

PRINTED CIRCUIT BOARD

Next: End

CH PUMP RUNS

SELECTOR SWITCH

Next: End

CH PUMP RUNS

PUMP

Next: End

CH FAN RUNS (CH TIMED)

SELECTOR SWITCH

Next: End

CH FAN RUNS

PRINTED CIRCUIT BOARD

Next: End

DHW FAN RUNS

AIR PRESSURE SWITCH

Next: End

CH HIGH BURNER

PRINTED CIRCUIT BOARD

Next: End

DHW SPARKING

IGNITION MICROSWITCH

Next: End

DHW SPARKING

PRINTED CIRCUIT BOARD

Next: End

CENTRAL HEATING OPERATION

HEAT EXCHANGER

Next: End

CENTRAL HEATING OPERATION

Next: End

CH BURNER MODULATION

PRINTED CIRCUIT BOARD

Next: End

DHW FLOW RATE

HEAT EXCHANGER

Next: End

NO BOILER OPERATION

PRINTED CIRCUIT BOARD

Next: End

SLOW FAN

FAN ASSEMBLY

Next: End

DHW FAN RUNS

PRINTED CIRCUIT BOARD

Next: End

DHW SPARKING

ELECTRODE

Next: End

HEAT EXCHANGER NOISY OPERATION, WATER CIRCULATING

CHARACTERISTIC TEST FROM CENTRAL HEATING OPERATION

Next: !p27

HEAT EXCHANGER QUIET OPERATION, RADIATORS NOT HEATING

CHARACTERISTIC TEST FROM CENTRAL HEATING OPERATION

Next: !p29

11/07/2018 09:57:05 1807_1_50_1 20/07/2018 14:02:22

11/07/2018 10:39:52

Next: End

PILOT INJECTOR

Next: !p105, !f104

OVERHEAT THERMOSTAT RESISTANCE

ENSURE THAT THE BOILER IS NOT IN AN OVERHEAT CONDITION

Next: p108, !f107

DHW GAS VALVE VOLTAGE

SELECTOR SWITCH IN HOT WATER POSITION

Next: p115, !f114

DHW FULL MODUREG VOLTAGE

SELECTOR SWITCH IN HOT WATER POSITION

Next: !p120, f119

DHW SENSOR RESISTANCE

REMOVE THE BROWN WIRE AND THE BLUE WIRE FROM THE HW SENSOR

Next: !p121, !f122

DHW MODUREG MODULATION VOLTAGE

SELECTOR SWITCH IN HOT WATER POSITION

Next: !p125, f124

DHW SENSOR RESISTANCE

REMOVE THE BROWN WIRE AND THE BLUE WIRE FROM THE HW SENSOR

Next: !p127, !f126

SELECTOR SWITCH RESISTANCE (CH 24HRS)

SELECTOR SWITCH IN CH CONTINUOUS POSITION
REMOVE CONNECTOR PLUG FROM X2 ON PCB

Next: p130, f129

ROOM THERMOSTAT / LINK RESISTANCE

Next: !p132, !f131

CH THERMISTOR RESISTANCE

REMOVE THE BROWN WIRE AND THE BLACK WIRE FROM THE CH THERMISTOR

Next: p141, !f136

CH TIMER RESISTANCE

SELECTOR SWITCH IN CH TIMED POSITION
ENSURE THAT THE CH TIMER IS IN ITS CH ON CONDITION

Next: !p140, !f139

IGNITION MICROSWITCH RESISTANCE

Next: p159, f160

GAS VALVE GAS CONTROL KNOB PLASTIC TAB

Next: !p161, !f162

CH THERMISTOR RESISTANCE

REMOVE THE BROWN WIRE AND THE BLACK WIRE FROM THE CH THERMISTOR

Next: p34, !f33

CH THERMISTOR RESISTANCE

REMOVE THE BROWN WIRE AND THE BLACK WIRE FROM THE CH THERMISTOR

Next: p155, !f41

DHW INLET FILTER

WATER OFF

Next: p46, !f45

FROST THERMOSTAT

Next: p51, !f50

FUSE

Next: p58, !f57

AIR PRESSURE SWITCH NO AIR RESISTANCE

REMOVE CONNECTOR PLUG FROM R ON PCB

Next: p65, f64

AIR PRESSURE SWITCH DAMPER

Next: p67, !f66

DHW AIR PRESSURE SWITCH AIR DETECT

{GAINPCBACS}
SELECTOR SWITCH IN HOT WATER POSITION

Next: p77, f76

AIR PRESSURE SWITCH DAMPER

Next: p79, !f78

THERMOCOUPLE MILLIVOLTAGE

SELECTOR SWITCH IN HOT WATER POSITION

Next: p110, !f109

THERMOCOUPLE INTERRUPTER

Next: !p112, !f111

DHW BURNER GAS PRESSURE

SELECTOR SWITCH IN H

Next: !p117, !f116

CH PUMP VOLTAGE

SELECTOR SWITCH IN CH CONTINUOUS POSITION

Next: !p134, !f133

CH POTENTIOMETER RESISTANCE

REMOVE THE CONNECTOR PLUG MARKED X1 FROM THE PCB

Next: !p142, !f143

INSPECTION FAN ASSEMBLY

REMOVE FAN ASSEMBLY

Next: p81, !f153

CH POTENTIOMETER RESISTANCE

REMOVE THE CONNECTOR PLUG MARKED X1 FROM THE PCB

Next: !p156, !f157

CH LIMIT THERMOSTAT RESISTANCE

ENSURE THAT THE BOILER IS NOT IN AN OVERHEAT CONDITION

Next: p163, !f164

DHW LIMIT THERMOSTAT RESISTANCE

ENSURE THE BOILER IS NOT IN AN OVERHEATED STATE

Next: !p165, !f166

CH POTENTIOMETER RESISTANCE

REMOVE THE CONNECTOR PLUG MARKED X1 FROM THE PCB

Next: !p40, !f35

DHW RESTRICTOR

WATER OFF

Next: !p48, !f47

DHW FLOW SWITCH RESISTANCE (OPEN CIRCUIT)

DHW TAPS OFF

Next: p53, !f52

SELECTOR SWITCH RESISTANCE (DHW)

SELECTOR SWITCH IN HOT WATER POSITION
REMOVE CONNECTOR PLUG FROM X2 ON PCB

Next: !p55, !f54

MAINS POWER SUPPLY

{GAINPCBACS}

Next: p60, !f59

SLOW FAN VOLTAGE

Next: !p62, !f61

DHW FLOW SWITCH RESISTANCE (SHORT CIRCUIT)

Next: p71, !f70

AIR PRESSURE SWITCH TUBE

Next: !p154, !f68

DHW SENSOR RESISTANCE

REMOVE THE BROWN WIRE AND THE BLUE WIRE FROM THE HW SENSOR

Next: !p73, !f72

SPARK GENERATOR INPUT VOLTAGE

SELECTOR SWITCH IN HOT WATER POSITION

Next: p83, f158

AIR PRESSURE SWITCH TUBE

Next: p149, !f80

FLUE

Next: !p101, !f102

SPARK ELECTRODE LEAD

Next: p92, !f93

VISUALLY INSPECT SPARK ELECTRODE CONDITION

Next: !p94, !f95

System Information

Total Tests: 142

Sequence Logic: Decoded from encrypted .seq file

Navigation: Dynamic based on pass/fail results

Source: 4731307 GW SWIFTFLOW 100 SIT Control