XSol Diagnostic System

POTTERTON LYNX

G.C. NUMBER 47 590 0

Next: &9, *

APPLIANCE APPEARS SATISFACTORY

Next: nff

CENTRAL HEATING OPERATION

CENTRAL HEATING SELE

Next: &nff, f95

HOT WATER OPERATION

HOT WATER THERMOSTAT

Next: &1, f89

HIGH FLAME LED STATE

BOILER ON

Next: &2, f80

LOW FLAME LED STATE

BOILER ON

Next: &3, ?59, ?61

IGNITION LED STATE

SWITCH BOILER OFF THEN ON

Next: &4, f34

DEMAND AND MINIMUM TEMPERATURE LEDS STATE

BOILER ON
SET SUMMER/WINTER SWITCH TO THE SUMMER POSITION

Next: &5, ?18, ?20, ?22

DC POWER SUPPLY 2 MEASUREMENT

BOILER ON
SUMMER/WINTER SWITCH SET TO THE WINTER POSITION

Next: &6, f14

DC POWER SUPPLY 1 MEASUREMENT

{GAINPCBACS}
BOIL

Next: &7, f11

POTTERTON LYNX

G.C. NUMBER 47 590 0

Next: &113, !f10

SYSTEM CHECKS

PLEASE ENSURE THE FOLLOWING SYSTEM CHECKS ARE COMPLETED

Next: &8, !f114

ELECTRICAL SAFETY CHECKS

Next: End

NO LEDS LIGHT (2)

DIVERTER VALVE MICROSWITCH ASSEMBLY

Next: End

HIGH FLAME LED STATE (3)

MODUREG COIL (GV3)

Next: End

CENTRAL HEATING OPERATION

CH WATER TEMPERATURE SENSOR

Next: End

LOW FLAME LED STATE (3)

GAS VALVE AND FIRST SOLENOID VALVE

Next: End

HIGH FLAME

GAS VALVE AND FIRST SOLENOID VALVE

Next: End

SYSTEM CHECKS

Next: End

DC POWER SUPPLY 1 MEASUREMENT

PUMP OVERRUN THERMOSTAT

Next: End

DC POWER SUPPLY 1 MEASUREMENT

FUSE F1

Next: End

DC POWER SUPPLY 2 MEASUREMENT

DHW TEMPERATURE SENSOR

Next: End

HOT WATER OPERATION

DHW TEMPERATURE SENSOR

Next: End

HIGH FLAME LED STATE

DISTRIBUTION BOARD

Next: End

AIR FLOW SENSOR MEASUREMENT - MOVING AIR

AIR FLOW SENSOR

Next: End

AIR FLOW SENSOR - STILL AIR OPERATION

FULL SEQUENCE CONTROL BOARD

Next: End

DC POWER SUPPLY 2 MEASUREMENT

FUSE F2

Next: End

MINIMUM CH TEMPERATURE, LED LIGHTS

DIVERTER VALVE

Next: End

NO LEDS LIGHT

DIVERTER VALVE

Next: End

NO LEDS LIGHT (3)

DIVERTER VALVE MICROSWITCH ASSEMBLY

Next: End

IGNITION LED STATE

PUMP OVERRUN THERMOSTAT

Next: End

IGNITION LED STATE

PUMP

Next: End

IGNITION LED STATE

DHW OVERHEAT (LIMIT) THERMOSTAT

Next: End

WATER FLOW INTERLOCK SWITCH

AIR FLOW SENSOR

Next: End

LOW FLAME SEEN, BUT LED DOES NOT LIGHT

SENSING ELECTRODE AND LEAD

Next: End

OVERHEAT THERMOSTAT

CENTRAL HEATING OVERHEAT THERMOSTAT

Next: End

CENTRAL HEATING OPERATION

DISTRIBUTION BOARD

Next: End

LOW FLAME LED STATE (2)

GAS VALVE AND FIRST SOLENOID VALVE

Next: End

LOW FLAME LED STATE (4)

GAS VALVE AND FIRST SOLENOID VALVE

Next: End

HIGH FLAME LED STATE (2)

MODUREG COIL (GV3)

Next: End

HOT WATER OPERATION

DISTRIBUTION BOARD

Next: End

AIR FLOW SENSOR MEASUREMENT - MOVING AIR

FULL SEQUENCE CONTROL BOARD

Next: End

DC POWER SUPPLY 1 MEASUREMENT

DISTRIBUTION BOARD

Next: End

DC POWER SUPPLY 2 MEASUREMENT

DISTRIBUTION BOARD

Next: End

IGNITION LED STATE

FAN ASSEMBLY AND FLUE SYSTEM

Next: End

DEMAND AND MINIMUM TEMPERATURE LEDS STATE

DISTRIBUTION BOARD

Next: End

MINIMUM CH TEMPERATURE, LED LIGHTS (1)

DIVERTER VALVE MICROSWITCH ASSEMBLY

Next: End

MINIMUM CH TEMPERATURE, LED LIGHTS (2)

DIVERTER VALVE MICROSWITCH ASSEMBLY

Next: End

NO LEDS LIGHT (1)

DIVERTER VALVE MICROSWITCH ASSEMBLY

Next: End

IGNITION LED STATE

WATER FLOW SWITCH

Next: End

IGNITION LED STATE

MODULATING BOARD

Next: End

LOW FLAME SEEN, BUT LED DOES NOT LIGHT

FULL SEQUENCE CONTROL BOARD

Next: End

BOILER DOES NOT LIGHT UP, NO LED

SPARK IGNITION ELECTRODE AND LEAD

Next: End

BOILER DOES NOT LIGHT UP, NO LED

FULL SEQUENCE CONTROL BOARD

Next: End

LOW FLAME LED STATE (1)

GAS VALVE AND FIRST SOLENOID VALVE

Next: End

HIGH FLAME LED STATE (1)

MODULATING BOARD

Next: End

CENTRAL HEATING OPERATION

MODULATING BOARD

Next: End

ALL TEMPERATURE LEDS CH AND DHW LIGHT, NO DEMAND LED

CHARACTERISTIC TEST FROM DEMAND AND MINIMUM TEMPERATURE LEDS STATE

Next: !p19

MINIMUM CH TEMPERATURE, LED LIGHTS

CHARACTERISTIC TEST FROM DEMAND AND MINIMUM TEMPERATURE LEDS STATE

Next: p21

NO LEDS LIGHT

CHARACTERISTIC TEST FROM DEMAND AND MINIMUM TEMPERATURE LEDS STATE

Next: p23

LOW FLAME SEEN, BUT LED DOES NOT LIGHT

CHARACTERISTIC TEST FROM LOW FLAME LED STATE

Next: p60

BOILER DOES NOT LIGHT UP, NO LED

CHARACTERISTIC TEST FROM LOW FLAME LED STATE

Next: p62

SPARK GENERATOR CLICKS BUT NO SPARK AT ELECTRODE

CHARACTERISTIC TEST FROM SPARK IGNITION

Next: !p68

NO SPARK FROM ELECTRODE, NO CLICK FROM SPARK GENERATOR

CHARACTERISTIC TEST FROM SPARK IGNITION

Next: !p70

RESISTANCE IS GREATER THAN 30 OHMS

CHARACTERISTIC TEST FROM GAS VALVE GV1/2 RESISTANCE MEASUREMENT

Next: p73

RESISTANCE IS LESS THAN 20 OHMS

CHARACTERISTIC TEST FROM GAS VALVE GV1/2 RESISTANCE MEASUREMENT

Next: !p104

06/12/2012 11:35:28 1303_1_50_1 10/01/2013 13:33:32

06/12/2012 11:47:48

Next: End

FUSE F1 CHECK

Next: p115, !f12

FUSE F2 CHECK

Next: p118, !f15

DIVERTER VALVE CHECK

PLASTIC COVER OF DIVERTER VALVE REMOVED
ALL HOT TAPS CLOSED

Next: !p27, !f26

SHUTDOWN RELAY OPERATION CHECK

{GAINPCBACS}
BOILER ON
SUMMER/WINTER SWITCH SET TO WINTER
SYSTEM CALLING FOR HEAT

Next: p36, f35

WATER FLOW INTERLOCK SWITCH

{GAINPCBACS}
BOILER ON

Next: p38, f37

WATER PUMP MAINS VOLTAGE MEASUREMENT

{GAINPCBACS}
BOILER ON

Next: p40, !f39

FAN VOLTAGE MEASUREMENT

{GAINPCBACS}
BOILER ON

Next: !p125, !f126

GAS VALVE GV3 SOLENOID RESISTANCE MEASUREMENT

DISCONNECT ONE OF THE LEADS ON GV3

Next: p82, f81

GAS VALVE GV3 AND LEAD RESISTANCE

Next: !p105, !f106

DHW TEMPERATURE SENSOR MEASUREMENT

{GAINPCBACS}
BOILER ON

Next: !p110, !f121

CENTRAL HEATING SENSOR MEASUREMENT

{GAINPCBACS}
BOILER ON
SUMMER/WINTER SWITCH SET TO WINTER
SYSTEM CALLING FOR HEAT

Next: p97, !f108

PUMP OVERRUN THERMOSTAT

DISCONNECT THE PLUG D28 - D31 FROM THE FULL SEQUENCE CONTROL BOARD

Next: !p116, !f117

DHW TEMPERATURE SENSOR MEASUREMENT

{GAINPCBACS}
BOILER ON

Next: !p119, !f120

AC MICROSWITCH CHECK

{GAINPCBACS}
BOILER ON
MAKE SURE THAT ANY PROGRAMMER/TIMERS ARE ON

Next: !p25, f24

DIVERTER VALVE CHECK

PLASTIC COVER OF DIVERTER VALVE REMOVED
ALL HOT TAPS CLOSED

Next: p29, !f28

AC MICROSWITCH CHECK

{GAINPCBACS}
BOILER ON
MAKE SURE THAT ANY PROGRAMMER/TIMERS ARE ON

Next: p31, !f30

DHW TEMPERATURE SENSOR MEASUREMENT

{GAINPCBACS}
BOILER ON

Next: !p33, !f100

FAN RUNS

BOILER ON

Next: p48, f47

DOMESTIC HOT WATER TEMPERATURE (DHW)

DISCONNECT THERMOSTAT ELECTRICAL PLUG-IN CONNECTOR D32 & D33 ON DISTRIBUTION BOARD

Next: p44, !f43

WATER PUMP (RUNNING) FUNCTION

BOILER ON
REMOVE

Next: !p42, !f41

AIR FLOW SENSOR MEASUREMENT - MOVING AIR

DISCONNECT CONNECTOR D1 - D12 FROM FULL SEQUENCE CONTROL BOARD

Next: !p46, !f45

AIR FLOW SENSOR MEASUREMENT - MOVING AIR

DISCONNECT CONNECTOR D1 - D12 FROM FULL SEQUENCE CONTROL BOARD

Next: !p111, !f123

FLAME SENSOR AND LEAD CHECK

Next: !p64, !f63

SPARK IGNITION

BOILER ON
SYSTEM CALLING FOR HEAT

Next: p66, ?67, ?69

GAS VALVE GV1/2 RESISTANCE MEASUREMENT

Next: p71, ?72, ?74

GAS VALVES 1/2 VOLTAGE

{GAINPCBACS}
BOILER ON
SYSTEM CALLING FOR HEAT

Next: !p77, !f76

GAS VALVES GV1/2 SOLENOID RESISTANCE MEASUREMENTS

Next: !p102, !f109

GAS VALVE GV3 AND LEAD RESISTANCE

Next: p86, !f112

GAS VALVE GV3 VOLTAGE MEASUREMENT

{GAINPCBACS}
BOILER ON
SYSTEM CALLING FOR HEAT

Next: !p88, !f122

CENTRAL HEATING TEMPERATURE SELECTOR CHECK

{GAINPCBACS}
BOILER ON
SUMMER/WINTER SWITCH SET TO WINTER
SYSTEM CALLING FOR HEAT

Next: !p99, !f98

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