XSol Diagnostic System

GLOW WORM HOT-WATER EXPRESS 100 SIT

G.C. NUMBER 47 313 0

Next: &1, *

APPLIANCE APPEARS SATISFACTORY

Next: nff

GLOW WORM HOT-WATER EXPRESS 100 SIT

{ISOLATEMAINSPOWER}<

Next: &2, !f21

SAFETY: SYSTEM CHECKS

PLEASE ENSURE THAT THE FOLLOWING SYSTEM CHECKS ARE COMPLETED.

Next: &414, !f22

IGNITE PILOT

{ISOLATEMAINSPOWER}
SELECTOR SWITCH OFF
GAS CONTROL KNOB IN PILOT IGNITION POSITION

Next: &5, f29

ESTABLISH PILOT

{ISOLATEMAINSPOWER}
SELECTOR SWITCH OFF
GAS CONTROL KNOB IN PILOT IGNITION POSITION

Next: &6, f32

FLAME FAILURE

{ISOLATEMAINSPOWER}
SELECTOR SWITCH OFF
GAS CONTROL KNOB IN OFF POSITION
EXTINGUISH PILOT

Next: &7, !f413

SLOW FAN

SELECTOR SWITCH OFF
GAS CONTROL KNOB IN MAIN BURNER POSITION

Next: &8, f189

MAINS LED

SELECTOR SWITCH OFF

Next: &9, f35

LOW SYSTEM PRESSURE LED

SELECTOR SWITCH OFF

Next: &10, f36

CH RUNNING LED

SELECTOR SWITCH ON
GAS CONTROL KNOB IN MAIN BURNER POSITION

Next: &11, f37

CH HIGH FAN

SELECTOR SWITCH OFF
GAS CONTROL KNOB IN MAIN BURNER POSITION

Next: &12, f206

CH PUMP RUNS

SELECTOR SWITCH ON
GAS CONTROL KNOB IN MAIN BURNER POSITION

Next: &304, f39

CH MODULATION

SELECTOR SWITCH ON
GAS CONTROL KNOB IN MAIN BURNER POSITION

Next: &15, f41

DHW RUNNING LED

SELECTOR SWITCH OFF
GAS CONTROL KNOB IN MAIN BURNER POSITION

Next: &154, f42

CENTRAL HEATING

SELECTOR SWITCH ON
GAS CONTROL KNOB IN MAIN BURNER POSITION

Next: &155, ?170, ?172

DHW MODULATION

{ISOLATEMAINSPOWER}<

Next: &151, f164

DHW OVERRUN

SELECTOR SWITCH OFF
GAS CONTROL KNOB IN MAIN BURNER POSITION

Next: &152, !f163

DHW HIGH FLAME

{ISOLATEMAINSPOWER}<

Next: &153, f156

HOT WATER

SELECTOR SWITCH OFF
GAS CONTROL KNOB IN MAIN BURNER POSITION

Next: &nff, !f174

CH BURNER IGNITES

{ISOLATEMAINSPOWER}<

Next: &14, ?326, ?328, ?353

SPARKING

{ISOLATEMAINSPOWER}
SELECTOR SWITCH OFF
GAS CONTROL KNOB IN PILOT IGNITION POSITION

Next: &4, f415

IGNITE PILOT

PILOT INJECTOR

Next: End

ESTABLISH PILOT

THERMOCOUPLE

Next: End

DHW OVERRUN

CONTROL BOARD

Next: End

HOT WATER

HEAT EXCHANGER

Next: End

DHW HIGH FLAME

MODULATION COIL

Next: End

DHW HIGH FLAME

DHW THERMISTOR

Next: End

DHW MODULATION

DHW THERMISTOR

Next: End

SLOW FAN

240V MAINS SUPPLY

Next: End

SLOW FAN

FUSE FS1 (1.6 AMP)

Next: End

ELECTRICAL CHECKS

ELECTRICAL CHECK

Next: End

CH HIGH FAN

CH THERMISTOR

Next: End

SYSTEM CHECKS

Next: End

DHW RUNNING LED

INLET FILTER

Next: End

MAINS LED

FUSE FS2 (0.63 AMP)

Next: End

MAINS LED

CONTROL BOARD

Next: End

CH BURNER IGNITES

MODULATION COIL

Next: End

BURNER IGNITES, PRESSURE LOW

GAS INLET SUPPLY

Next: End

BURNER IGNITES, PRESSURE LOW

CH THERMISTOR

Next: End

CH THERMISTOR

Next: End

DHW HIGH FLAME

GAS INLET SUPPLY

Next: End

CH BURNER IGNITES

AIR PRESSURE SWITCH TUBES

Next: End

CH BURNER IGNITES

FLUE

Next: End

CH SOLENOID COIL RESISTANCE

CH THERMISTOR

Next: End

BURNER DOES NOT IGNITE NO PRESSURE

GAS INLET SUPPLY

Next: End

CH BURNER IGNITES

WATER PRESSURE SWITCH

Next: End

SOLENOID COIL RESISTANCE

GAS VALVE ASSEMBLY

Next: End

FLAME FAILURE

GAS VALVE ASSEMBLY

Next: End

SPARKING

SPARK ELECTRODE

Next: End

SPARKING

IGNITION LEAD

Next: End

LOW SYSTEM PRESSURE LED

SYSTEM PRESSURE

Next: End

LOW SYSTEM PRESSURE LED

WATER PRESSURE SWITCH

Next: End

CH RUNNING LED

MICROSWITCH LEVER

Next: End

CH RUNNING LED

SELECTOR MICROSWITCH

Next: End

CH RUNNING LED

CONTROL BOARD

Next: End

CH PUMP RUNS

CONTROL BOARD

Next: End

CH MODULATION

CH THERMISTOR

Next: End

ESTABLISH PILOT

BOILER OVERHEAT THERMOSTAT

Next: End

DHW MODULATION

MODULATION COIL

Next: End

CENTRAL HEATING

HEAT EXCHANGER

Next: End

CENTRAL HEATING

Next: End

DHW HIGH FLAME

CONTROL BOARD

Next: End

DHW MODULATION

CONTROL BOARD

Next: End

SLOW FAN

FAN ASSEMBLY

Next: End

CH HIGH FAN

FAN ASSEMBLY

Next: End

CH HIGH FAN

CONTROL BOARD

Next: End

DHW RUNNING LED

CONTROL BOARD

Next: End

DHW RUNNING LED

DHW FLOW SWITCH

Next: End

LOW SYSTEM PRESSURE LED

USER PCB BOARD

Next: End

CH RUNNING LED

USER PCB BOARD

Next: End

CH RUNNING LED

INTERFACE PCB BOARD

Next: End

SLOW FAN

CONTROL BOARD

Next: End

MAINS LED

USER PCB BOARD

Next: End

CH MODULATION

USER PCB BOARD

Next: End

MAINS LED

TRANSFORMER

Next: End

BURNER IGNITES, PRESSURE LOW

GAS VALVE ASSEMBLY

Next: End

CH BURNER IGNITES

CONTROL BOARD

Next: End

DHW HIGH FLAME

GAS VALVE ASSEMBLY

Next: End

CH BURNER IGNITES

AIR PRESSURE SWITCH

Next: End

GAS INLET PRESSURE

GAS VALVE ASSEMBLY

Next: End

CH BURNER IGNITES

DHW HIGH CUT OFF

Next: End

CH BURNER IGNITES

BURNER INJECTOR

Next: End

IGNITE PILOT

GAS VALVE ASSEMBLY

Next: End

ESTABLISH PILOT

GAS VALVE ASSEMBLY

Next: End

SPARKING

PIEZO IGNITER

Next: End

CH PUMP RUNS

WATER PUMP

Next: End

CH MODULATION

MODULATION COIL

Next: End

NOISY OPERATION

CHARACTERISTIC TEST FROM CENTRAL HEATING

Next: !p171

QUIET OPERATION

CHARACTERISTIC TEST FROM CENTRAL HEATING

Next: !p173

BURNER IGNITES, PRESSURE LOW

CHARACTERISTIC TEST FROM CH BURNER IGNITES

Next: p355

BURNER DOES NOT IGNITE, NO PRESSURE

CHARACTERISTIC TEST FROM CH BURNER IGNITES

Next: p329

BURNER DOES NOT IGNITE, PRESSURE PRESENT

CHARACTERISTIC TEST FROM CH BURNER IGNITES

Next: !p409

30/11/2012 09:26:39 1303_2_50_1 10/01/2013 13:26:43

30/11/2012 09:41:24

Next: End

THERMOCOUPLE

{ISOLATEMAINSPOWER}<

Next: !p106, !f105

MODULATION COIL VOLTAGE (DHW)

SELECTOR SWITCH ON
GAS CONTROL KNOB IN MAIN BURNER POSITION

Next: p178, f179

DHW MODULATION COIL VOLTAGE

SELECTOR SWITCH ON
GAS CONTROL KNOB IN MAIN BURNER POSITION

Next: !p165, f166

DHW THERMISTOR MODULATION

{ISOLATEMAINSPOWER}
UNPLUG CONNECTOR CN4

Next: !p184, !f185

DHW THERMISTOR

{ISOLATEMAINSPOWER}
UNPLUG CONNECTOR CN4

Next: !p182, !f183

SLOW FAN VOLTAGE

SELECTOR SWITCH OFF
GAS CONTROL KNOB IN MAIN BURNER POSITION

Next: !p190, f193

MAINS SUPPLY

SELECTOR SWITCH OFF

Next: p200, !f195

HIGH FAN VOLTAGE

SELECTOR SWITCH ON
GAS CONTROL KNOB IN MAIN BURNER POSITION

Next: !p207, f208

CH THERMISTOR

{ISOLATEMAINSPOWER}
UNPLUG CONNECTOR CN4

Next: !p209, !f210

DHW INLET FILTER

{ISOLATEMAINSPOWER}
WATER OFF

Next: !p223, !f224

PILOT INJECTOR

{ISOLATEMAINSPOWER}

Next: !p411, !f102

BOILER OVERHEAT VOLTAGE

{ISOLATEMAINSPOWER}<

Next: !p412, f104

TRANSFORMER OUTPUT VOLTAGE

SELECTOR SWITCH OFF

Next: p203, f350

VOLTAGE TO TRANSFORMER

SELECTOR SWITCH ON
GAS CONTROL KNOB IN MAIN BURNER POSITION

Next: !p351, !f352

CH THERMISTOR

{ISOLATEMAINSPOWER}
UNPLUG CONNECTOR CN4

Next: !p362, !f363

SYSTEM PRESSURE

{ISOLATEMAINSPOWER}

Next: p62, !f61

CENTRAL HEATING DEMAND

{ISOLATEMAINSPOWER}<

Next: p66, f65

CH THERMISTOR

{ISOLATEMAINSPOWER}
UNPLUG CONNECTOR CN4

Next: p372, !f373

AIR PRESSURE SWITCH TUBES

{ISOLATEMAINSPOWER}

Next: p387, !f388

WATER PUMP VOLTAGE

SELECTOR SWITCH ON
GAS CONTROL KNOB IN MAIN BURNER POSITION

Next: !p74, !f73

CH MODULATION COIL VOLTAGE

SELECTOR SWITCH ON
GAS CONTROL KNOB IN MAIN BURNER POSITION

Next: !p91, f90

ELECTRODE

{ISOLATEMAINSPOWER}
REMOVE FRONT COMBUSTION COVER

Next: p416, !f417

DHW FLOW SWITCH

{ISOLATEMAINSPOWER}
UNPLUG CONNECTOR CN4

Next: !p221, f222

SELECTOR MICROSWITCH LEVER

{ISOLATEMAINSPOWER}

Next: p68, !f67

CH THERMISTOR MODULATION

{ISOLATEMAINSPOWER}
UNPLUG CONNECTOR CN4

Next: !p261, !f92

MODULATION COIL RESISTANCE

{ISOLATEMAINSPOWER}
UNPLUG CONNECTOR CN1

Next: p383, !f181

FUSE FS1

{ISOLATEMAINSPOWER}

Next: !p259, !f202

FUSE FS2

{ISOLATEMAINSPOWER}

Next: !p260, !f349

AIR PRESSURE SWITCH

{ISOLATEMAINSPOWER}<

Next: p330, f386

CH SOLENOID COIL VOLTAGE

SELECTOR SWITCH ON
GAS CONTROL KNOB IN MAIN BURNER POSITION

Next: p332, f371

SOLENOID COIL RESISTANCE

{ISOLATEMAINSPOWER}
UNPLUG CONNECTOR CN1

Next: p334, !f410

GAS INLET PRESSURE

{ISOLATEMAINSPOWER}<

Next: p403, !f406

MODULATION COIL VOLTAGE (CH)

SELECTOR SWITCH ON
GAS CONTROL KNOB IN MAIN BURNER POSITION

Next: p356, f357

MODULATION COIL RESISTANCE

{ISOLATEMAINSPOWER}
UNPLUG CONNECTOR CN1

Next: p358, !f359

GAS INLET PRESSURE

{ISOLATEMAINSPOWER}<

Next: !p360, !f361

WATER PRESSURE SWITCH (PRESSURISED)

{ISOLATEMAINSPOWER}<

Next: !p407, !f408

GAS INLET PRESSURE

{ISOLATEMAINSPOWER}<

Next: !p384, !f385

FLUE

Next: !p389, !f390

CH THERMISTOR

{ISOLATEMAINSPOWER}
UNPLUG CONNECTOR CN4

Next: !p404, !f405

ELECTRODE LEAD

{ISOLATEMAINSPOWER}

Next: !p418, !f419

WATER PRESSURE SWITCH (LOW PRESSURE)

{ISOLATEMAINSPOWER}<

Next: !p251, !f63

HIGH FAN VOLTAGE

SELECTOR SWITCH ON
GAS CONTROL KNOB IN MAIN BURNER POSITION

Next: !p252, !f71

SELECTOR SWITCH

{ISOLATEMAINSPOWER}
UNPLUG CONNECTOR CN4

Next: !p253, !f69

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