XSol Diagnostic System

WORCESTER 230 RSF

G.C. NUMBER 47 311 1

Next: &17, *

APPLIANCE APPEARS SATISFACTORY

Next: nff

HOT WATER

SELECTOR SWITCH WATER POSITION

Next: &nff, ?18, ?20

HW BURNER MODULATION

{ISOLATEMAINSPOWER}<

Next: &1, f100

HW HIGH FLAME

{ISOLATEMAINSPOWER}<

Next: &2, f141

HW PILOT IGNITES

OPERATING SWITCH IN WATER POSITION

Next: &3, !f94

HW DEMAND INDICATOR

OPERATING SWITCH IN WATER POSITION

Next: &4, f91

PUMP OVERRUN

OPERATING SWITCH IN HEATING AND WATER POSITION
TEMPERATURE CONTROL TO MAX

Next: &5, !f90

CENTRAL HEATING

SELECTOR SWITCH HEATING AND WATER POSITION

Next: &6, ?86, ?88

C/H BURNER MODULATION

OPERATING SWITCH IN HEATING & WATER POSITION
TEMPERATURE CONTROL TO MAX

Next: &7, f183

C/H HIGH FLAME

{ISOLATEMAINSPOWER}<

Next: &8, ?205, ?207

C/H LOW FLAME

{ISOLATEMAINSPOWER}<

Next: &171, f67

WATER PUMP RUNNING

{ISOLATEMAINSPOWER}
OPERATING SWITCH IN HEATING & WATER POSITION

Next: &113, f37

C/H DEMAND INDICATOR

OPERATING SWITCH IN OFF POSITION

Next: &12, ?233, ?235

POWER ON INDICATOR

Next: &13, f24

WORCESTER 230 RSF

{ISOLATEMAINSPOWER}<

Next: &15, !f22

C/H PILOT IGNITES

OPERATING SWITCH IN HEATING & WATER POSITION

Next: &10, ?266, ?268

CH LOW FLAME CORRECT PRESSURE

{ISOLATEMAINSPOWER}<

Next: &9, !f172

FUSE INVESTIGATION TREE

BLANK

Next: &nff, f318

HW BURNER MODULATION

HOT WATER TEMPERATURE SENSOR FIXING

Next: End

HW DEMAND INDICATOR

DIVERTER VALVE (MICROSWITCH)

Next: End

CH LOW FLAME CORRECT

MODUREG-GAS VALVE

Next: End

CH HIGH FLAME

CENTRAL HEATING TEMPERATURE SENSOR FIXING

Next: End

CH MODULATION

CENTRAL HEATING TEMPERATURE SENSOR.

Next: End

CH BURNER MODULATION

TEMPERATURE CONTROL POTENTIOMETER

Next: End

CH BURNER MODULATION

MODUREG-GAS VALVE

Next: End

HW BURNER MODULATION

HOT WATER TEMPERATURE SENSOR

Next: End

CH

INLET PRESSURE

Next: End

CH HIGH FLAME 2

CENTRAL HEATING TEMPERATURE SENSOR.

Next: End

CH HIGH FLAME

TEMPERATURE CONTROL POTENTIOMETER

Next: End

ELECTRICAL CHECK

Next: End

POWER ON INDICATOR

POWER ON INDICATOR NEON (AMBER)

Next: End

C/H HIGH FLAME

DIVERTER VALVE (DIAPHRAGM SPINDLE)

Next: End

CH DEMAND INDICATOR

OPERATING SWITCH / PROGRAMMER

Next: End

CH DEMAND INDICATOR

DIVERTER VALVE (MICROSWITCH)

Next: End

CH DEMAND INDICATOR

DEMAND INDICATOR NEON (GREEN)

Next: End

FROST THERMOSTAT (IF FITTED)

FROST THERMOSTAT (OPTIONAL).

Next: End

HW HIGH FLAME

DIVERTER VALVE (MICROSWITCH)

Next: End

CH HIGH FLAME DOES NOT INCREASE

DIVERTER VALVE (DIAPHRAGM SPINDLE)

Next: End

POWER ON INDICATOR

MAINS FUSE

Next: End

FUSE F1

FUSE F1.

Next: End

CH PILOT IGNITES

CENTRAL HEATING TEMPERATURE SENSOR.

Next: End

CH PILOT IGNITES

FUSE F2.

Next: End

AIR PRESSURE SWITCH: NO AIR

AIR PRESSURE SWITCH

Next: End

CH PILOT IGNITES

OVERHEAT THERMOSTAT

Next: End

CH PILOT IGNITES

FLUE ASSEMBLY

Next: End

AIR PRESSURE TUBES

Next: End

PILOT IGNITES

FAN ASSEMBLY

Next: End

PILOT IGNITES

INLET PRESSURE

Next: End

HW DEMAND INDICATOR

WATER SUPPLY

Next: End

HW DEMAND INDICATOR

ISOLATING VALVE (DHW)

Next: End

HW DEMAND INDICATOR

FILTER - STAINLESS STEEL

Next: End

HW DEMAND INDICATOR

FLOW REGULATOR

Next: End

FUSE INVESTIGATION

WATER PUMP.

Next: End

FUSE INVESTIGATION

FAN ASSEMBLY

Next: End

FUSE INVESTIGATION

MAIN GAS VALVE

Next: End

CH PILOT IGNITES

ELECTRODE LEAD (SPARK)

Next: End

CH PILOT IGNITES

ELECTRODE (SPARK)

Next: End

CH PILOT IGNITES

PILOT INJECTOR

Next: End

PILOT VOLTAGE

IGNITION CONTROL BOARD

Next: End

WATER PUMP RUNNING

PUMP OVERRUN THERMOSTAT

Next: End

CH LOW FLAME

SENSING ELECTRODE LEAD

Next: End

CH LOW FLAME

SENSING ELECTRODE

Next: End

CH LOW FLAME

MAIN GAS VALVE

Next: End

PUMP OVERRUN

PUMP OVERRUN THERMOSTAT

Next: End

HW PILOT IGNITES

HOT WATER TEMPERATURE SENSOR

Next: End

DHW HIGH FLAME

HOT WATER TEMPERATURE SENSOR

Next: End

HW DEMAND INDICATOR

OPERATING SWITCH / PROGRAMMER

Next: End

HW HIGH FLAME

MODUREG-GAS VALVE

Next: End

DHW

INLET PRESSURE

Next: End

HOT WATER

SECONDARY HEAT EXCHANGER (WATER TO WATER)

Next: End

CH MODULATION

MAIN DRIVER BOARD

Next: End

DHW MODULATION

MAIN DRIVER BOARD

Next: End

HOT WATER

DIVERTER VALVE

Next: End

MODUREG-GAS VALVE

Next: End

PRESSURE INCREASES IMMEDIATELY

MAIN DRIVER BOARD

Next: End

FAULTY POWER NEON

Z REDIRECT

Next: End

CH HIGH FLAME

MAIN DRIVER BOARD

Next: End

PRESSURE INCREASES IMMEDIATELY

DIVERTER VALVE (MICROSWITCH)

Next: End

CH DEMAND INDICATOR

ROOM THERMOSTAT (OPTIONAL)

Next: End

FAULTY DEMAND NEON

Z REDIRECT

Next: End

DEMAND NEON LIT

PUMP OVERRUN THERMOSTAT

Next: End

DHW HIGH FLAME

MAIN DRIVER BOARD

Next: End

C/H HIGH FLAME

DIVERTER VALVE (MICROSWITCH)

Next: End

MAINS ELECTRICITY SUPPLY

Next: End

MAINS FUSE

Z REDIRECT

Next: End

FUSE INVESTIGATION F1

Z REDIRECT

Next: End

CH PILOT IGNITES

MAIN DRIVER BOARD

Next: End

CH PILOT IGNITESFUSE INVESTIGATION F1

Z REDIRECT

Next: End

CH PILOT IGNITES

FAN ASSEMBLY

Next: End

AIR PRESSURE SWITCH: NO AIR

IGNITION CONTROL BOARD

Next: End

SPARK GENERATOR

AIR PRESSURE SWITCH

Next: End

CH PILOT IGNITES

MAIN GAS VALVE

Next: End

HW DEMAND INDICATOR

DIVERTER VALVE (DIAPHRAGM SPINDLE)

Next: End

HW DEMAND INDICATOR

SECONDARY HEAT EXCHANGER (WATER TO WATER)

Next: End

NO FAULT FUSE INVESTIGATION

FUSE FURTHER INVESTIGATION

Next: End

CH PILOT IGNITES

MAIN GAS VALVE (PILOT VALVE)

Next: End

SPARK GENERATOR

IGNITION CONTROL BOARD

Next: End

WATER PUMP RUNNING

WATER PUMP.

Next: End

CH LOW FLAME

IGNITION CONTROL BOARD

Next: End

CH LOW FLAME

MAIN BURNER

Next: End

CENTRAL HEATING

PRIMARY HEAT EXCHANGER (GAS TO WATER)

Next: End

CENTRAL HEATING

Next: End

HOT WATER UNSATISFACTORY RADIATORS REMAIN COLD

CHARACTERISTIC TEST FROM HOT WATER

Next: !p19

HOT WATER UNSATISFACTORY RADIATORS GET WARM

CHARACTERISTIC TEST FROM HOT WATER

Next: !p21

BURNER PRESSURE DOES NOT INCREASE.

CHARACTERISTIC TEST FROM C/H HIGH FLAME

Next: p209

BURNER PRESSURE INCREASES IMMMEDIATELY.

CHARACTERISTIC TEST FROM C/H HIGH FLAME

Next: p218

DEMAND NEON ILLUMINATED WITH NO DEMAND

CHARACTERISTIC TEST FROM C/H DEMAND INDICATOR

Next: p246

DEMAND NEON DOES NOT ILLUMINATE

CHARACTERISTIC TEST FROM C/H DEMAND INDICATOR

Next: p237

PILOT PERMANENTLY LIT

CHARACTERISTIC TEST FROM C/H PILOT IGNITES

Next: !p305

PILOT DOES NOT LIGHT

CHARACTERISTIC TEST FROM C/H PILOT IGNITES

Next: p270

HEAT EXCHANGER NOISY

CHARACTERISTIC TEST FROM CENTRAL HEATING

Next: !p87

HEAT EXCHANGER QUIET

CHARACTERISTIC TEST FROM CENTRAL HEATING

Next: !p89

24/08/2018 11:04:12 1808_1_50_1 20/09/2018 10:51:50

24/08/2018 14:05:40

Next: End

H/W SENSOR FIXING

{ISOLATEMAINSPOWER}

Next: p199, !f101

INLET PRESSURE DHW

{ISOLATEMAINSPOWER}
ATTACH PRESSURE GAUGE TO THE INLET PRESSURE TEST POINT
GAS ON

Next: !p147, f95

C/H SENSOR FIXING

{ISOLATEMAINSPOWER}

Next: p188, !f184

TEMPERATURE POTENTIOMETER

{ISOLATEMAINSPOWER}<

Next: p227, !f217

DIVERTER VALVE SPINDLE

{ISOLATEMAINSPOWER}
REMOVE THE DIVERTER VALVE MICRO SWITCH COVER.

Next: !p231, !f232

OPERATING SWITCH

OPERATING SWITCH IN THE HEATING & WATER POSITION

Next: !p240, !f241

FUSE F1

{ISOLATEMAINSPOWER}
GAIN ACCESS TO PCB (USE INSULATION MAT AS REQUIRED)

Next: p26, f260

DIVERTER VALVE SPINDLE

{ISOLATEMAINSPOWER}
REMOVE THE DIVERTER VALVE MICRO SWITCH COVER.

Next: !p253, !f254

RESISTANCE MAINS FUSE

{ISOLATEMAINSPOWER}
REMOVE THE FUSE FROM THE FUSED SPUR

Next: !p256, f257

FUSE FURTHER INVESTIGATION

Next: !p258, !f259

FUSE FURTHER INVESTIGATION

Next: !p261, !f262

SENSOR CHECK RELAY OPERATION

{ISOLATEMAINSPOWER}
OPERATING SWITCH IN HEATING & WATER POSITION

Next: p273, f274

C/H SENSOR

{ISOLATEMAINSPOWER}
REMOVE THE PLUG (WHITE WIRES) FROM CONNECTION X2 ON MAIN DRIVER BOARD

Next: p275, !f276

FUSE FURTHER INVESTIGATION

Next: !p279, !f280

IGNITION CONTROL BOARD LIVE

{ISOLATEMAINSPOWER}
OPERATING SWITCH IN HEATING & WATER POSITION

Next: !p285, !f286

FLUE

Next: p289, !f290

OBSERVATION DHW FLOW RATE

Next: !p307, f308

OBSERVATION MAINS FLOW INTO BOILER

Next: p309, !f310

RESISTANCE PUMP

{ISOLATEMAINSPOWER}
DISCONNECT 4 PIN CONNECTOR X6 MARKED "PUMP" ON MAIN DRIVER BOARD

Next: p319, !f320

SPARK ELECTRODE LEAD

{ISOLATEMAINSPOWER}

Next: p338, !f339

WATER PUMP VOLTAGE

{ISOLATEMAINSPOWER}<

Next: !p39, !f38

MAIN GAS VALVE VOLTAGE

{ISOLATEMAINSPOWER}<

Next: p69, f68

FLAME SENSE ELECTRODE LEAD

{ISOLATEMAINSPOWER}

Next: p71, !f70

DIVERTER VALVE SPINDLE

{ISOLATEMAINSPOWER}
REMOVE THE DIVERTER VALVE MICRO SWITCH COVER.

Next: p106, f306

MODUREG VOLTAGE DHW

{ISOLATEMAINSPOWER}
GAIN ACCESS TO PCB (USE INSULATION MAT AS REQUIRED)

Next: !p112, f96

HW SENSOR

{ISOLATEMAINSPOWER}
REMOVE THE MIDDLE PLUG (RED WIRES) FROM CONNECTOR X2 ON MAIN DRIVER BOARD

Next: p249, !f98

DIVERTER VALVE MICROSWITCHES HW

{ISOLATEMAINSPOWER}
OPERATING SWITCH IN WATER POSITION

Next: !p108, !f109

C/H SENSOR

{ISOLATEMAINSPOWER}
REMOVE THE PLUG (WHITE WIRES) FROM CONNECTION X2 ON MAIN DRIVER BOARD

Next: p193, !f192

MODUREG RESISTANCE

{ISOLATEMAINSPOWER}
REMOVE CONNECTOR FROM X2 ON DRIVER PCB

Next: p194, !f198

TEMPERATURE POTENTIOMETER

{ISOLATEMAINSPOWER}<

Next: !p197, !f196

HW SENSOR

{ISOLATEMAINSPOWER}
REMOVE THE MIDDLE PLUG (RED WIRES) FROM CONNECTOR X2 ON MAIN DRIVER BOARD

Next: !p201, !f200

INLET PRESSURE CH

{ISOLATEMAINSPOWER}
ATTACH PRESSURE GAUGE TO THE INLET PRESSURE TEST POINT
GAS ON

Next: p210, !f211

C/H SENSOR

{ISOLATEMAINSPOWER}
REMOVE THE PLUG (WHITE WIRES) FROM CONNECTION X2 ON MAIN DRIVER BOARD

Next: p212, !f213

MODUREG VOLTAGE C/H

OPERATING SWITCH HEATING & WATER POSITION

Next: !p214, f215

RESISTANCE DIVERTER VALVE MICROSWITCH DHW HIGH FLAME (OPEN CIRCUIT)

{ISOLATEMAINSPOWER}<

Next: !p219, f230

INFORMATION POWER ON NEON

Next: !p222, !f223

RESISTANCE DIVERTER VALVE MICROSWITCH DHW HIGH FLAME (OPEN CIRCUIT)

{ISOLATEMAINSPOWER}<

Next: !p228, f252

ROOM THERMOSTAT

{ISOLATEMAINSPOWER}<

Next: p238, f239

C/H DEMAND VOLTAGE

OPERATING SWITCH IN HEATING & WATER POSITION

Next: p242, !f243

INFORMATION DEMAND NEON

Next: !p244, !f245

OBSERVATION DISCONNECT FROST THERMOSTAT (IF FITTED)

{ISOLATEMAINSPOWER}<

Next: !p248, !f247

RESISTANCE DIVERTER VALVE MICROSWITCH DHW HIGH FLAME

{ISOLATEMAINSPOWER}<

Next: !p250, !f251

MAINS POWER INPUT

Next: p221, f255

FAN RUNNING

OPERATING SWITCH IN HEATING & WATER POSITION

Next: p271, f272

AIR PRESSURE SWITCH: AIR DETECT

{ISOLATEMAINSPOWER}<

Next: p287, f288

AIR PRESSURE SWITCH: NO AIR

{ISOLATEMAINSPOWER}
DISCONNECT CONNECTOR CN2 FROM THE IGNITION CONTROL BOARD

Next: p281, !f282

FUSE F2

{ISOLATEMAINSPOWER}

Next: !p277, f278

FAN VOLTAGE

OPERATING SWITCH IN HEATING & WATER POSITION

Next: !p283, f284

INLET PRESSURE

{ISOLATEMAINSPOWER}
CONNECT U GAUGE TO INLET PRESSURE TEST POINT

Next: p327, !f296

INSPECTION AIR PRESSURE TUBES

{ISOLATEMAINSPOWER}

Next: p291, !f292

INSPECT FAN ASSEMBLY

{ISOLATEMAINSPOWER}
REMOVE FAN ASSEMBLY FROM BOILER

Next: !p293, !f294

PILOT SOLENOID VOLTAGE

{ISOLATEMAINSPOWER}
GAIN ACCESS TO PCB (USE INSULATION MAT AS REQUIRED)

Next: p341, !f344

INSPECTION DHW ISOLATION VALVE

{ISOLATEMAINSPOWER}

Next: p311, !f312

INSPECTION DHW FILTER

{ISOLATEMAINSPOWER}
TURN OFF COLD WATER SUPPLY TO APPLIANCE

Next: p313, !f314

INSPECTION FLOW REGULATOR

{ISOLATEMAINSPOWER}
TURN OFF COLD WATER SUPPLY TO APPLIANCE

Next: !p315, !f316

RESISTANCE FAN

{ISOLATEMAINSPOWER}
DISCONNECT 5 PIN CONNECTOR MARKED CN5 ON THE IGNITION PCB

Next: p321, !f322

RESISTANCE GAS VALVE

{ISOLATEMAINSPOWER}
DISCONNECT 9 PIN CONNECTOR MARKED CN3 ON THE IGNITION PCB

Next: !p323, !f324

SPARK ELECTRODE

Next: p295, f337

SPARK ELECTRODE CHECK

{ISOLATEMAINSPOWER}

Next: !p345, !f340

PILOT

{ISOLATEMAINSPOWER}

Next: !p342, !f343

MAIN GAS VALVE MECHANICAL OPERATION

{ISOLATEMAINSPOWER}<

Next: !p75, !f74

FLAME SENSE ELECTRODE

{ISOLATEMAINSPOWER}

Next: !p73, !f72

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