XSol Diagnostic System

VOKERA 24 / 96 R.S.E. FLOWMATIC.

G.C. NUMBER 47 094 0

Next: &20, *

APPLIANCE APPEARS SATISFACTORY

Next: nff

EXCESSIVE SYSTEM PRESSURE RISE

ON/OFF SWITCH IN ON POSITION
MODE SELECTOR SWITCH TO CONSTANT
HEATING THERMOSTAT TO MAX

Next: &nff, !f147

FAN OVERRUN

ON/OFF SWITCH IN ON POSITION
MODE SELECTOR SWITCH TO CONSTANT

Next: &1, f142

CENTRAL HEATING

ON/OFF SWITCH IN ON POSITION
MODE SELECTOR SWITCH TO CONSTANT
HEATING THERMOSTAT TO MAX

Next: &2, ?136, ?138, ?140

HOT WATER

ON/OFF SWITCH IN ON POSITION
DHW THERMOSTAT TO MAX
MODE SELECTOR SWITCH TO SUMMER

Next: &3, ?123, ?125, ?127

C/H MODULATION

{ISOLATEMAINSPOWER}<

Next: &4, !f122

C/H HIGH FLAME

{ISOLATEMAINSPOWER}<

Next: &5, f119

C/H BURNER IGNITES

ON/OFF SWITCH IN ON POSITION
MODE SELECTOR SWITCH TO CONSTANT

Next: &6, !f118

C/H FAN RUNS

ON/OFF SWITCH IN ON POSITION
MODE SELECTOR SWITCH TO CONSTANT

Next: &7, f109

DHW MODULATION

{ISOLATEMAINSPOWER}<

Next: &8, f102

DHW HIGH FLAME

{ISOLATEMAINSPOWER}<

Next: &9, f99

DHW FLAME SENSE

ON/OFF SWITCH IN ON POSITION
MODE SELECTOR SWITCH TO SUMMER
HEATING THERMOSTAT SET TO MAX

Next: &10, f96

DHW BURNER IGNITES

ON/OFF SWITCH IN ON POSITION
MODE SELECTOR SWITCH TO SUMMER
WATER THERMOSTAT TO MAX

Next: &11, f89

DHW SPARKING

ON/OFF SWITCH IN ON POSITION
MODE SELECTOR SWITCH TO SUMMER

Next: &12, f72

DHW FAN RUNS

ON/OFF SWITCH IN ON POSITION
MODE SELECTOR SWITCH TO SUMMER
TURN HOT WATER TAP ON

Next: &13, f61

BOILER FLOW SWITCH OPERATION

ON/OFF SWITCH IN ON POSITION
MODE SELECTOR SWITCH TO SUMMER

Next: &14, f38

MICROSWITCH C/H MODULATION

{ISOLATEMAINSPOWER}
REMOVE CONNECTOR PLUG 5 (CONNECTIONS 32-39)

Next: &15, !f37

MICROSWITCH DHW MODULATION

{ISOLATEMAINSPOWER}
REMOVE CONNECTOR PLUG 5 (CONNECTIONS 32-39)

Next: &16, !f36

DHW DEMAND

{ISOLATEMAINSPOWER}

Next: &17, f23

SYSTEM CHECKS

{ISOLATEMAINSPOWER}

Next: &18, !f22

VOKERA 24 / 96 R.S.E. FLOWMATIC.

{ISOLATEMAINSPOWER}<

Next: &19, !f21

DHW HIGH FLAME

DHW THERMOSTAT.

Next: End

MODULATION COIL RESISTANCE (FAIL)

MODULATION COIL.

Next: End

SELECTOR SWITCH

SELECTOR SWITCH.

Next: End

ROOM THERMOSTAT LINK

ROOM THERMOSTAT LINK.

Next: End

DELAY TIMER BOARD.

Next: End

CH BURNER IGNITES

BOILER THERMOSTAT.

Next: End

CH HIGH FLAME

BOILER THERMOSTAT.

Next: End

CH MODULATION

BOILER THERMOSTAT.

Next: End

FAN OVERRUN

PRINTED CIRCUIT BOARD.

Next: End

EXPANSION VESSEL

EXPANSION VESSEL.

Next: End

ELECTRICAL CHECK.

Next: End

SYSTEM CHECK

SYSTEM CHECK.

Next: End

DHW FLOW ADJUSTMENT (THROTTLE)

DHW FLOW ADJUSTMENT (THROTTLE).

Next: End

DHW FILTER.

Next: End

DIVERTER VALVE DIAPHRAGM

DIVERTER VALVE DIAPHRAGM.

Next: End

DIVERTER VALVE VENTURI

DIVERTER VALVE VENTURI.

Next: End

MICROSWITCH DHW MODULATION

DHW MICROSWITCH ASSEMBLY.

Next: End

MICROSWITCH CH MODULATION

DHW MICROSWITCH ASSEMBLY.

Next: End

MAINS POWER SUPPLY

Next: End

ON/OFF SWITCH

ON/OFF SWITCH.

Next: End

PUMP CONNECTOR PLUG

PUMP CONNECTOR PLUG.

Next: End

BOILER FLOW SWITCH SPINDLE

BOILER FLOW SWITCH SPINDLE.

Next: End

DHW FAN RUNS

DHW MICROSWITCH ASSEMBLY.

Next: End

RELAY 1 NORMALLY OPEN VOLTAGE

PRINTED CIRCUIT BOARD.

Next: End

DHW FAN RUNS

BOILER FLOW SWITCH MICROSWITCH.

Next: End

AIR PRESSURE SWITCH TUBE

AIR PRESSURE SWITCH TUBE.

Next: End

FLUE

FLUE.

Next: End

FLUE VENTURI

FLUE VENTURI.

Next: End

HIGH LIMIT THERMOSTAT

HIGH LIMIT THERMOSTAT.

Next: End

SAFETY THERMOSTAT

SAFETY THERMOSTAT.

Next: End

ELECTRONIC IGNITION CONTROL CONNECTOR

ELECTRONIC IGNITION CONTROL CONNECTOR.

Next: End

GAS VALVE SOLENOID 1 (TOP)

GAS VALVE SOLENOID 1 (TOP).

Next: End

GAS VALVE SOLENOID 2 (BOTTOM)

Next: End

DHW BURNER IGNITES

ELECTRONIC IGNITION CONTROL.

Next: End

SENSE ELECTRODE & LEAD

SENSE ELECTRODE AND LEAD.

Next: End

MODULATION COIL

MODULATION COIL.

Next: End

MODULATION COIL RESISTANCE (PASS)

MODULATION COIL.

Next: End

CH FAN RUNS

BOILER THERMOSTAT.

Next: End

C/H OPERATION: INSUFFICIENT WATER FLOW

C/H OPERATION: INSUFFICIENT WATER FLOW.

Next: End

MAXIMUM HEATING RATE POTENTIOMETER

MAXIMUM HEATING RATE POTENTIOMETER.

Next: End

DHW QUIET OPERATION, COLD RADIATORS

SECONDARY HEAT EXCHANGER.

Next: End

DIVERTER VALVE

DIVERTER VALVE.

Next: End

HOT WATER

SECONDARY HEAT EXCHANGER.

Next: End

HOT WATER

PRIMARY HEAT EXCHANGER.

Next: End

CH NOISY OPERATION, DHW PREVIOUSLY OKAY

Next: End

CH QUIET OPERATION (1)

Next: End

CENTRAL HEATING

PRIMARY HEAT EXCHANGER.

Next: End

CENTRAL HEATING

Next: End

CENTRAL HEATING (2)

Next: End

FAN OVERRUN

BOILER FLOW SWITCH MICROSWITCH.

Next: End

FAN OVERRUN THERMOSTAT

FAN OVERRUN THERMOSTAT.

Next: End

DHW MODULATION

ELECTRONIC IGNITION CONTROL.

Next: End

DHW MODULATION

DHW THERMOSTAT.

Next: End

DHW MODULATION

PRINTED CIRCUIT BOARD.

Next: End

SECONDARY HEAT EXCHANGER (RESTRICTED FLOW)

SECONDARY HEAT EXCHANGER (RESTRICTED FLOW).

Next: End

DIVERTER VALVE SPINDLE

DIVERTER VALVE SPINDLE.

Next: End

BYPASS PLATE AND SPRING

BYPASS PLATE AND SPRING.

Next: End

BOILER FLOW SWITCH OPERATION

DHW MICROSWITCH ASSEMBLY.

Next: End

WATER PUMP

WATER PUMP.

Next: End

BOILER FLOW SWITCH DIAPHRAGM

BOILER FLOW SWITCH DIAPHRAGM.

Next: End

BOILER FLOW SWITCH VENTURI & BYPASS TUBE

BOILER FLOW SWITCH VENTURI AND BYPASS TUBE.

Next: End

INSUFFICIENT WATER FLOW

INSUFFICIENT WATER FLOW.

Next: End

DHW FAN RUNS

PRINTED CIRCUIT BOARD.

Next: End

DHW FAN RUNS

AIR PRESSURE SWITCH

Next: End

FAN

FAN.

Next: End

DHW SPARKING

AIR PRESSURE SWITCH

Next: End

SPARK ELECTRODE & LEAD

SPARK ELECTRODE AND LEAD.

Next: End

DHW SPARKING

ELECTRONIC IGNITION CONTROL.

Next: End

BURNER INJECTORS

BURNER INJECTORS.

Next: End

DHW FLAME SENSE

ELECTRONIC IGNITION CONTROL.

Next: End

DHW NOISY OPERATION

CHARACTERISTIC TEST FROM HOT WATER

Next: p124

DHW QUIET OPERATION, COLD RADIATORS

CHARACTERISTIC TEST FROM HOT WATER

Next: !p126

DHW QUIET OPEARTION, WARM RADIATORS

CHARACTERISTIC TEST FROM HOT WATER

Next: !p128

CH NOISY OPERATION, DHW NOISY OPERATION

CHARACTERISTIC TEST FROM CENTRAL HEATING

Next: !p131

CH NOISY OPERATION, DHW PREVIOUSLY OKAY

CHARACTERISTIC TEST FROM CENTRAL HEATING

Next: !p133

CH QUIET OPERATION

CHARACTERISTIC TEST FROM CENTRAL HEATING

Next: !p135

CH NOISY OPERATION, DHW NOISY OPERATION

CHARACTERISTIC TEST FROM CENTRAL HEATING

Next: !p137

CH NOISY OPERATION, DHW PREVIOUSLY OKAY

CHARACTERISTIC TEST FROM CENTRAL HEATING

Next: !p139

CH QUIET OPERATION

CHARACTERISTIC TEST FROM CENTRAL HEATING

Next: !p141

VOLTAGE PRESENT BUT DOESNT DROP

CHARACTERISTIC TEST FROM DHW THERMOSTAT CLOSED (HOT)

Next: !p152

NO VOLTAGE PRESENT AT ANY POINT

CHARACTERISTIC TEST FROM DHW THERMOSTAT CLOSED (HOT)

Next: !p154

FLOW SWITCH DIAPHRAGM SPLIT

CHARACTERISTIC TEST FROM BOILER FLOW SWITCH DIAPHRAGM

Next: !p56

FLOW SWITCH VENTURI BLOCKED

CHARACTERISTIC TEST FROM BOILER FLOW SWITCH DIAPHRAGM

Next: !p58

26/08/2014 10:51:21 1409_1_50_1 27/08/2014 14:49:36

27/08/2014 12:14:56

Next: End

MODULATION COIL VOLTAGE

ON/OFF SWITCH IN ON POSITION
MODE SELECTOR SWITCH TO SUMMER
DHW THERMOSTAT TO MIN

Next: p104, f103

DHW THERMOSTAT CLOSED (HOT)

ON/OFF SWITCH IN ON

Next: !p150, ?151, ?153

BOILER THERMOSTAT 1ST STAGE

ON/OFF SWITCH IN ON POSITION
MODE SELECTOR SWITCH TO CONSTANT

Next: p111, f110

SELECTOR SWITCH IN CONSTANT POSITION

ON/OFF SWITCH IN ON POSITION
MODE SELECTOR SWITCH TO CONSTANT

Next: p113, !f112

C/H THERMOSTAT OPEN (COLD)

{ISOLATEMAINSPOWER}<

Next: !p121, !f120

FAN OVERRUN THERMOSTAT

{ISOLATEMAINSPOWER}<

Next: !p144, f143

RELAY 1 NORMALLY CLOSED CHECK

ON/OFF SWITCH IN ON POSITION
MODE SELECTOR SWITCH TO SUMMER

Next: !p146, !f145

DHW FLOW RATE

Next: p25, f24

DHW FLOW ADJUSTMENT

{ISOLATEMAINSPOWER}

Next: p27, !f26

DIVERTER VALVE DIAPHRAGM

{ISOLATEMAINSPOWER}

Next: p33, !f32

DHW PUMP RUNS

ON/OFF SWITCH IN ON POSITION
MODE SELECTOR SWITCH TO SUMMER
DHW THERMOSTAT TO MAX

Next: p53, f39

DHW MICROSWITCH 1 OPERATION

ON/OFF SWITCH IN ON POSITION
MODE SELECTOR SWITCH TO SUMMER
DHW THERMOSTAT TO MAX

Next: p42, f41

MAINS POWER SUPPLY

ON/OFF SWITCH IN OFF POSITION

Next: p44, !f43

DC POWER SUPPLY

ON/OFF SWITCH IN ON POSITION
MODE SELECTOR SWITCH TO SUMMER
DHW THERMOSTAT TO MAX

Next: p63, f62

AIR PRESSURE SWITCH NO AIR VOLTAGE

ON/OFF SWITCH IN ON POSITION
MODE SELECTOR SWITCH TO SUMMER

Next: !p65, f64

DHW MICROSWITCH 2 OPERATION

ON/OFF SWITCH IN ON POSITION
MODE SELECTOR SWITCH TO SUMMER
WATER THERMOSTAT TO MAX

Next: !p67, !f66

AIR PRESSURE SWITCH AIR DETECT VOLTAGE

ON/OFF SWITCH IN ON POSITION
MODE SELECTOR SWITCH TO CONSTANT

Next: p74, f73

AIR PRESSURE SWITCH TUBE

{ISOLATEMAINSPOWER}

Next: p76, !f75

HIGH LIMIT THERMOSTAT CONTINUITY

{ISOLATEMAINSPOWER}
REMOVE BOTH WHITE WIRES FROM HIGH LIMIT THERMOSTAT

Next: p84, !f83

GV1 SOLENOID RESISTANCE

{ISOLATEMAINSPOWER}
DISCONNECT AND REMOVE WIRES FROM OPERATOR

Next: p91, !f90

SENSE ELECTRODE & LEAD

{ISOLATEMAINSPOWER}

Next: !p98, !f97

DHW THERMOSTAT OPEN VOLTAGE (COLD)

ON/OFF SWITCH IN ON POSITION
MODE SELECTOR SWITCH TO SUMMER
DHW THERMOSTAT TO MAX

Next: !p101, !f100

MODULATION COIL RESISTANCE

{ISOLATEMAINSPOWER}
DISCONNECT WIRES FROM THE MODULATION COIL

Next: !p108, !f107

DELAY TIMER

ON/OFF SWITCH IN ON

Next: !p117, !f116

ROOM THERMOSTAT/LINK VOLTAGE

ON/OFF SWITCH IN ON POSITION
MODE SELECTOR SWITCH TO CONSTANT

Next: !p115, !f114

CENTRAL HEATING

ON/OFF SWITCH IN ON POSITION
MODE SELECTOR SWITCH TO CONSTANT
HEATING THERMOSTAT TO MAX

Next: !p129, ?130, ?132, ?134

DIVERTER VALVE STIMULUS

{ISOLATEMAINSPOWER}

Next: !p31, f30

DHW FILTER

{ISOLATEMAINSPOWER}

Next: !p29, !f28

DIVERTER VALVE VENTURI

{ISOLATEMAINSPOWER}

Next: !p35, !f34

PUMP CONNECTOR VOLTAGE

ON/OFF SWITCH IN THE ON POSITION
MODE SELECTOR SWITCH TO SUMMER

Next: !p48, !f47

ON/OFF SWITCH OPERATION

ON/OFF SWITCH IN ON POSITION

Next: !p46, !f45

BOILER FLOW SWITCH DIAPHRAGM

{ISOLATEMAINSPOWER}

Next: p54, ?55, ?57

BOILER FLOW VALVE SPINDLE MOVE

{ISOLATEMAINSPOWER}

Next: !p60, !f59

RELAY 1 NORMALLY OPEN VOLTAGE

ON/OFF SWITCH IN ON POSITION
MODE SELECTOR SWITCH TO SUMMER
DHW THERMOSTAT TO MAX

Next: p69, !f68

FLOW SWITCH MICROSWITCH VOLTAGE

ON/OFF SWITCH IN ON POSITION
MODE SELECTOR SWITCH TO SUMMER

Next: !p71, !f70

SPARK GENERATOR

ON/OFF SWITCH IN ON POSITION
MODE SELECTOR SWITCH TO SUMMER

Next: !p82, f81

FLUE

Next: p78, !f77

FLUE VENTURI

{ISOLATEMAINSPOWER}

Next: !p80, !f79

SAFETY THERMOSTAT RESISTANCE

{ISOLATEMAINSPOWER}
REMOVE BOTH WHITE WIRES FROM THERMOSTAT AND MAKE SAFE.

Next: p86, !f85

ELECTRONIC CONTROL BOX

{ISOLATEMAINSPOWER}

Next: !p88, !f87

GV2 SOLENOID RESISTANCE

{ISOLATEMAINSPOWER}
DISCONNECT AND REMOVE WIRES FROM OPERATOR

Next: p93, !f92

C/H MODULATION

{ISOLATEMAINSPOWER}<

Next: !p95, !f94

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