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:

BAXI GENESIS 96

G.C. NUMBER 47 077 0

Next: &19, *

CH BURNER RE-IGNITE DELAY

HEATING TEMPERATURE CONTROL TO MAXIMUM

Next: &nff, !f151

LOCKOUT RESET

Next: &1, !f149

PUMP OVERRUN

HEATING TEMPERATURE CONTROL TO MAXIMUM

Next: &2, !f157

WATER PRESSURE RISE

HEATING TEMPERATURE CONTROL TO MAXIMUM

Next: &3, !f148

CH BURNER MODULATION

HEATING TEMPERATURE CONTROL TO MAXIMUM

Next: &4, f145

CENTRAL HEATING OPERATION

HEATING TEMPERATURE CONTROL TO MAXIMUM

Next: &5, ?131, ?133, ?135

DHW BURNER MODULATION

{ISOLATEMAINSPOWER}<

Next: &6, f124

HOT WATER OPERATION

SELECTOR SWITCH IN DHW POSITION

Next: &7, ?108, ?110, ?112

DHW BURNER HIGH FLAME

{ISOLATEMAINSPOWER}<

Next: &159, f90

DHW BURNER ESTABLISHED

SELECTOR SWITCH IN DHW POSITION

Next: &10, f87

DHW BURNER IGNITES

SELECTOR SWITCH IN DHW POSITION

Next: &11, f76

DHW SPARKING

SELECTOR SWITCH IN DHW POSITION

Next: &12, f183

DHW FAN RUNS

SELECTOR SWITCH IN DHW POSITION

Next: &13, f43

DHW PUMP RUNS

SELECTOR SWITCH IN DHW POSITION

Next: &14, f36

DHW FLOW RATE

{ISOLATEMAINSPOWER}
SELECTOR SWITCH IN DHW POSITION

Next: &15, f31

STANDBY LED

Next: &16, f22

SYSTEM CHECKS

{ISOLATEMAINSPOWER}

Next: &17, !f21

BAXI GENESIS 96

{ISOLATEMAINSPOWER}<

Next: &18, !f20

CH BURNER IGNITES

HEATING TEMPERATURE CONTROL TO MAXIMUM
ENSURE HEATING SYSTEM COOL

Next: &8, ?160, ?162

DHW QUIET OPERATION, WARM RADIATORS

PCB - CONTROL

Next: End

DHW BURNER MODULATION

THERMISTOR - TEMPERATURE SENSOR

Next: End

DHW BURNER MODULATION

KIT - SOLENOID VALVE

Next: End

CONTROL BOARD (SWITCHES)

PCB - CONTROL (SWITCHES)

Next: End

CH QUIET OPERATION

PCB - CONTROL

Next: End

CH QUIET OPERATION

DIVERTER VALVE ASSEMBLY - 3 WAY

Next: End

CH QUIET OPERATION

FILTER - HEATING

Next: End

CH BURNER MODULATION

THERMISTOR - TEMPERATURE SENSOR

Next: End

WATER PRESSURE RISE

EXPANSION VESSEL

Next: End

LOCKOUT RESET

PCB - CONTROL

Next: End

CH BURNER RE-IGNITE DELAY

PCB - CONTROL

Next: End

DHW FAN RUNS

HEAD ASSEMBLY - FLOW SWITCH

Next: End

DHW FAN RUNS

PCB - POWER

Next: End

PUMP OVERRUN

PCB - CONTROL

Next: End

CH BURNER IGNITES

HEAD ASSEMBLY - FLOW SWITCH

Next: End

CH BURNER IGNITES

FILTER - HEATING

Next: End

DHW SPARKING

HEAD ASSEMBLY - FLOW SWITCH

Next: End

DHW SPARKING

KIT - PRESSURE SWITCH

Next: End

DHW SPARKING NO VOLTAGE TO APS

PCB - POWER

Next: End

DHW SPARKING

PCB - POWER

Next: End

DHW SPARKING

ELECTRODE ASSEMBLY - IGNITION

Next: End

DHW SPARKING

TUBE 1.3M X 9MM X 3MM SILICONE

Next: End

ELECTRICAL CHECKS

ELECTRICAL CHECKS

Next: End

DHW SPARKING

VENTURI

Next: End

SYSTEM CHECKS

SYSTEM CHECKS

Next: End

DHW WARM RADIATORS - RESISTANCE

DIVERTER VALVE ASSEMBLY - 3 WAY

Next: End

CH QUIET OPERATION - RESISTANCE

DIVERTER VALVE ASSEMBLY - 3 WAY

Next: End

STANDBY LED

Next: End

STANDY LED

FUSE F1 - 2A

Next: End

STANDY LED

FUSE F2 - 1.25MA

Next: End

STANDBY LED

PCB - POWER

Next: End

DHW FLOW RATE

FLOW REGULATOR

Next: End

DHW FLOW RATE

FILTER - WATER

Next: End

DHW PUMP RUNS

PCB - POWER

Next: End

DHW PUMP RUNS

HEAD ASSEMBLY - FLOW SWITCH

Next: End

DHW FAN RUNS

TUBE 1.3M X 9MM X 3MM SILICONE

Next: End

DHW FAN RUNS

VENTURI

Next: End

DHW FAN RUNS

THERMISTOR - TEMPERATURE SENSOR

Next: End

DHW FAN RUNS

THERMISTOR - TEMPERATURE SENSOR

Next: End

DHW FAN RUNS

HEAD ASSEMBLY - FLOW SWITCH

Next: End

DHW BURNER IGNITES

THERMOSTAT 100 DEG C - SAFETY

Next: End

DHW BURNER IGNITES

PCB - POWER

Next: End

DHW BURNER IGNITES

KIT - SOLENOID VALVE

Next: End

DHW BURNER ESTABLISHED

ELECTRODE - IONISATION

Next: End

DHW BURNER HIGH FLAME

THERMISTOR - TEMPERATURE SENSOR

Next: End

DHW BURNER HIGH FLAME

KIT - SOLENOID VALVE

Next: End

DHW QUIET OPERATION, COLD RADIATORS

HEAT EXCHANGER - WATER

Next: End

DHW QUIET OPERATION, WARM RADIATORS

DIVERTER VALVE ASSEMBLY - 3 WAY

Next: End

CENTRAL HEATING OPERATION

HEAT EXCHANGER - WATER

Next: End

CH NOISY OPERATION, DHW NOISY OPERATION

HEAT EXCHANGER - PRIMARY

Next: End

CH NOISY OPERATION, DHW NOISY OPERATION

HEAT EXCHANGER - WATER

Next: End

CH QUIET OPERATION

HEAT EXCHANGER - WATER

Next: End

DHW BURNER MODULATION

PCB - CONTROL

Next: End

DHW BURNER MODULATION

GAS SECTION ASSEMBLY

Next: End

CH NOISY OPERATION, DHW NOISY OPERATION

PCB - CONTROL

Next: End

CH NOISY OPERATION, DHW QUIET OPERATION

PCB - CONTROL

Next: End

CH QUIET OPERATION

Next: End

DHW FAN RUNS

PCB - CONTROL (RESET SWITCH)

Next: End

CH BURNER MODULATION

PCB - CONTROL

Next: End

CH BURNER IGNITES

GAS SECTION ASSEMBLY

Next: End

CH BURNER IGNITES

Next: End

CH BURNER IGNITES

PUMP 240V 2 - SPEED

Next: End

DHW SPARKING

PCB - CONTROL

Next: End

DHW SPARKING

SPARK GENERATOR

Next: End

DHW SPARKING

FAN ASSEMBLY

Next: End

DHW BURNER ESTABLISHED

PCB - POWER

Next: End

STANDBY LED

PCB - CONTROL

Next: End

DHW FLOW RATE

HEAT EXCHANGER - WATER

Next: End

DHW PUMP RUNS

PUMP 240V 2 - SPEED

Next: End

DHW PUMP RUNS

PCB - CONTROL

Next: End

DHW FAN RUNS

KIT - PRESSURE SWITCH

Next: End

DHW FAN RUNS

FAN ASSEMBLY

Next: End

DHW BURNER IGNITES

PCB - CONTROL

Next: End

DHW BURNER IGNITES

MANIFOLD

Next: End

DHW BURNER IGNITES

GAS SECTION ASSEMBLY

Next: End

DHW BURNER HIGH FLAME

PCB - CONTROL

Next: End

DHW BURNER HIGH FLAME

GAS SECTION ASSEMBLY

Next: End

DHW NOISY OPERATION

CHARACTERISTIC TEST FROM HOT WATER OPERATION

Next: p109

DHW COOL, RADS COOL

CHARACTERISTIC TEST FROM HOT WATER OPERATION

Next: !p111

DHW COOL, RADIATORS START TO HEAT

CHARACTERISTIC TEST FROM HOT WATER OPERATION

Next: p211

CH NOISY OPERATION, DHW NOISY OPERATION

CHARACTERISTIC TEST FROM CENTRAL HEATING OPERATION

Next: !p119

CH NOISY OPERATION, DHW QUIET OPERATION

CHARACTERISTIC TEST FROM CENTRAL HEATING OPERATION

Next: !p121

CH QUIET OPERATION

CHARACTERISTIC TEST FROM CENTRAL HEATING OPERATION

Next: !p123

CH NOISY OPERATION, DHW NOISY OPERATION

CHARACTERISTIC TEST FROM CENTRAL HEATING OPERATION

Next: !p132

CH NOISY OPERATION, DHW QUIET OPERATION

CHARACTERISTIC TEST FROM CENTRAL HEATING OPERATION

Next: p134

CH QUIET OPERATION

CHARACTERISTIC TEST FROM CENTRAL HEATING OPERATION

Next: p203

DOES NOT IGNITE

CHARACTERISTIC TEST FROM CH BURNER IGNITES

Next: p174

IGNITES TO HIGH FLAME

CHARACTERISTIC TEST FROM CH BURNER IGNITES

Next: p163

DHW GAS VALVE MODULATION VOLTAGE

{ISOLATEMAINSPOWER}
SELECTOR SWITCH IN DHW POSITION

Next: p126, f125

DHW SENSOR RESISTANCE

{ISOLATEMAINSPOWER}

Next: !p128, !f127

CH SENSOR RESISTANCE

{ISOLATEMAINSPOWER}
REMOVE THE PURPLE WIRES FROM THE CH SENSOR

Next: !p158, !f146

VOLTAGE THERMOSTAT/EXTERNAL CONTROLS INPUT

SELECTOR SWITCH IN CH POSITION

Next: !p177, !f178

INSPECTION CH FILTER

{ISOLATEMAINSPOWER}<

Next: !p181, !f182

PUMP FLOW SWITCH RESISTANCE

{ISOLATEMAINSPOWER}
REMOVE CONNECTOR ON PUMP FLOW SWITCH (RED WIRES)

Next: p184, !f185

VOLTAGE AIR PRESSURE SWITCH COMMON

{ISOLATEMAINSPOWER}
TURN SELECTOR SWITCH TO DHW POSITION

Next: p190, !f191

POWER BOARD (SPARKING)

{ISOLATEMAINSPOWER}<

Next: !p194, !f195

MAINS POWER SUPPLY

{ISOLATEMAINSPOWER}
HINGE DOWN THE ELECTRICAL BOX AND REMOVE SMALL PCB COVER

Next: p24, !f23

DHW FLOW RESTRICTOR

{ISOLATEMAINSPOWER}
MAINS WATER OFF
BOILER DISCHARGED AND DRAINED

Next: p33, !f32

PUMP VOLTAGE

{ISOLATEMAINSPOWER}
SELECTOR SWITCH IN DHW POSITION
REMOVE THE PUMP COVER

Next: !p38, f37

POWER BOARD (PUMP)

{ISOLATEMAINSPOWER}<

Next: p40, !f39

AIR PRESSURE SWITCH (NO AIR) RESISTANCE

{ISOLATEMAINSPOWER}<

Next: p45, f44

AIR PRESSURE SWITCH TUBES

{ISOLATEMAINSPOWER}

Next: p47, !f46

CH SENSOR RESISTANCE

{ISOLATEMAINSPOWER}
REMOVE THE PURPLE WIRES FROM THE CH SENSOR

Next: p53, !f52

DHW GAS VALVE IGNITION VOLTAGE

{ISOLATEMAINSPOWER}
SELECTOR SWITCH IN DHW POSITION
DHW TEMPERATURE CONTROL TO MAXIMUM

Next: p78, f77

OVERHEAT THERMOSTAT

{ISOLATEMAINSPOWER}
ENSURE THE BOILER IS NOT IN AN OVERHEATED STATE

Next: p80, !f79

GAS VALVE SOLENOID RESISTANCE (IGNITION)

{ISOLATEMAINSPOWER}
REMOVE THE ELECTRICAL PLUGS TO THE BLUE AND GREY SOLENOIDS

Next: !p86, !f85

FLAME SENSOR ELECTRODE ASSEMBLY

{ISOLATEMAINSPOWER}

Next: !p202, !f88

DHW GAS VALVE (HIGH FLAME) FULL VOLTAGE

{ISOLATEMAINSPOWER}
SELECTOR SWITCH IN DHW POSITION
DHW TEMPERATURE CONTROL TO MAXIMUM

Next: p92, f91

DHW SENSOR RESISTANCE

{ISOLATEMAINSPOWER}

Next: !p94, !f93

CENTRAL HEATING OPERATION

HEATING TEMPERATURE CONTROL TO MAXIMUM

Next: !p117, ?118, ?120, ?122

DIVERTER VALVE VOLTAGE (DHW)

{ISOLATEMAINSPOWER}<

Next: !p115, !f114

GAS VALVE SOLENOID RESISTANCE (LOW FLAME)

{ISOLATEMAINSPOWER}
REMOVE THE ELECTRICAL PLUG TO THE BLACK SOLENOID

Next: !p130, !f129

CONTROL BOARD SWITCHES

{ISOLATEMAINSPOWER}
HINGE DOWN THE ELECTRICAL BOX AND REMOVE SMALL PCB COVER.

Next: !p138, !f137

DIVERTER VALVE VOLTAGE (CH)

{ISOLATEMAINSPOWER}<

Next: p140, !f139

DIVERTER VALVE OPERATION (CH)

Next: p142, !f141

CH FILTER

{ISOLATEMAINSPOWER}<

Next: !p144, !f143

DHW FLOW SWITCH RESISTANCE

{ISOLATEMAINSPOWER}
REMOVE CONNECTOR ON DHW FLOW SWITCH

Next: p153, !f154

POWER BOARD (FAN)

{ISOLATEMAINSPOWER}<

Next: !p156, !f155

DHW FLOW SWITCH OPERATION

{ISOLATEMAINSPOWER}
MAINS WATER OFF
BOILER DISCHARGED AND DRAINED

Next: !p164, !f165

EXTERNAL CONTROLS/LINK (OUTPUT)

{ISOLATEMAINSPOWER}<

Next: p175, f176

PUMP FLOW SWITCH

{ISOLATEMAINSPOWER}
REMOVE CONNECTOR FROM PUMP FLOW SWITCH (RED WIRES)

Next: !p179, f180

RESISTANCE AIR PRESSURE SWITCH WITH KIT

{ISOLATEMAINSPOWER}<

Next: p186, !f187

OBSERVATION SPARKING WITH APS KIT

{ISOLATEMAINSPOWER}<

Next: p188, f189

AIR PRESSURE SWITCH TUBES

{ISOLATEMAINSPOWER}

Next: p198, !f199

SPARK GENERATOR INPUT VOLTAGE

{ISOLATEMAINSPOWER}<

Next: p192, f193

SPARK ELECTRODE ASSEMBLY

{ISOLATEMAINSPOWER}

Next: !p196, !f197

VENTURI

{ISOLATEMAINSPOWER}

Next: !p200, !f201

RESISTANCE DIVERTER VALVE

{ISOLATEMAINSPOWER}
DISCONNECT 20 PIN PLUG FROM THE CONTROL PCB

Next: p136, !f216

RESISTANCE DIVERTER VALVE

{ISOLATEMAINSPOWER}
DISCONNECT 20 PIN PLUG FROM THE CONTROL PCB

Next: p113, !f215

FUSE F1

{ISOLATEMAINSPOWER}
HINGE DOWN THE ELECTRICAL BOX AND REMOVE SMALL PCB COVER

Next: p26, !f25

FUSE F2

{ISOLATEMAINSPOWER}
HINGE DOWN THE ELECTRICAL BOX AND REMOVE SMALL PCB COVER

Next: p28, !f27

POWER BOARD (NEON)

{ISOLATEMAINSPOWER}<

Next: !p30, !f29

DHW FILTER

{ISOLATEMAINSPOWER}
MAINS WATER OFF
BOILER DISCHARGED AND DRAINED

Next: !p35, !f34

DHW FLOW SWITCH RESISTANCE

{ISOLATEMAINSPOWER}
REMOVE CONNECTOR ON DHW FLOW SWITCH

Next: !p42, !f41

FAN VOLTAGE

{ISOLATEMAINSPOWER}

Next: !p51, f50

VENTURI

{ISOLATEMAINSPOWER}

Next: !p49, !f48

DHW SENSOR RESISTANCE

{ISOLATEMAINSPOWER}

Next: p55, !f54

PUMP FLOW SWITCH RESISTANCE

{ISOLATEMAINSPOWER}
REMOVE CONNECTOR ON PUMP FLOW SWITCH (RED WIRES)

Next: p152, !f58

DHW BURNER GAS PRESSURE (IGNITION)

{ISOLATEMAINSPOWER}<

Next: !p84, f83

OVERHEAT THERMOSTAT VOLTAGE

{ISOLATEMAINSPOWER}
SELECTOR SWITCH IN DHW POSITION

Next: !p82, !f81

GAS VALVE SOLENOID RESISTANCE (HIGH FLAME)

{ISOLATEMAINSPOWER}
REMOVE THE ELECTRICAL PLUG FROM THE BLACK MODULATION SOLENOID

Next: !p96, !f95

System Information

  • Total Tests: 165
  • Sequence Logic: Decoded from encrypted .seq file
  • Navigation: Dynamic based on pass/fail results
  • Source: 4731307 GW SWIFTFLOW 100 SIT Control