XSol Diagnostic System

VAILLANT COMBICOMPACT ECOMAX VUW 286 EH

GLOBALLY REPLACED

Next: &13, *

APPLIANCE APPEARS SATISFACTORY

Next: nff

SYSTEM PRESSURE

MAIN ON/OFF CONTROL

Next: &nff, !f14

CENTRAL HEATING

MAIN ON/OFF CONTROL

Next: &1, ?69, ?73, ?997

PUMP RUNNING

MAIN ON/OFF CONTROL

Next: &977, f41

INSTRUCTIONS - RESET

Next: &1206, !f302

INSTRUCTIONS - STATUS MODE

Next: &8, !f38

MULTIFUNCTION DISPLAY CHECK

MAIN ON/OFF CONTROL IN THE ON POSITION

Next: &9, ?20, ?22

INSTRUCTIONS - MULTIFUNCTIONAL DISPLAY

Next: &10, !f18

VAILLANT COMBICOMPACT ECOMAX VUW 286 EH

G.C. NUMBER 47 044 2

Next: &11, !f15

HOT WATER

MAIN ON/OFF CONTROL

Next: &2, ?978, ?980, ?982

CH DEMAND

MAIN ON/OFF CONTROL

Next: &1866, f1207

CH DEMAND SATISFIED

MAIN ON/OFF CONTROL

Next: &2035, !f2202

DHW DEMAND

MAIN ON/OFF CONTROL

Next: &6, !f2203

S1 2

CABLE TREE (FAN CONNECTIONS)

Next: End

S1

PCB

Next: End

S1

CABLE TREE (FAN CONNECTIONS)

Next: End

S1

FAN - COMPLETE - SPECIAL

Next: End

S1

AIR PRESSURE SENSOR GAS VALVE CONNECTIONS

Next: End

S1

SIPHON

Next: End

S1

FLUE

Next: End

S3 2

PCB - CPU

Next: End

S3

WIRE - IGNITION

Next: End

S3

WIRE - IGNITION

Next: End

S3

CABLE TREE (GV ELECTRICAL CONNECTIONS)

Next: End

S3

BURNER

Next: End

SYSTEM PRESSURE

EXPANSION VESSEL

Next: End

F22/F23

PCB - CPU

Next: End

F22/F23

PUMP ELECTRICAL CONNECTIONS

Next: End

ELECTRICAL SAFETY CHECKS

Next: End

F60

CABLE TREE (GV ELECTRICAL CONNECTIONS)

Next: End

F1/F20/F24

CABLE TREE (NTC T1 CONNECTIONS)

Next: End

F2/F23

CABLE TREE (NTC T2 CONNECTIONS)

Next: End

F24

CABLE TREE (NTC T0 CONNECTIONS)

Next: End

F24

CABLE TREE (NTC T1 CONNECTIONS)

Next: End

INSTRUCTIONS - MULTIFUNCTIONAL DISPLAY

INCORRECT USE OF FAIL

Next: End

CH DEMAND SATISFIED

GOTO

Next: o2204-f1207, *

DHW DEMAND

GOTO

Next: o2205-f1207, *

S1

CABLE TREE (APS ELECTRICAL CONNECTIONS)

Next: End

DHW INLINE FILTER

FILTER

Next: End

S0/S31 DHW

MICROSWITCH (WATER SECTION)

Next: End

S0/S31 DHW

DIAPHRAGM (WATER SECTION)

Next: End

S0/S31 CH

PROGRAMMER

Next: End

S0/S31 CH

PCB - RELAY

Next: End

F0/F20/F24

CABLE TREE (NTC T0 CONNECTIONS)

Next: End

S3

RING PACKING

Next: End

S3

CABLE TREE (FLAME SENSE ELECTRODE LEAD)

Next: End

S3

ELECTRODE MONITORING

Next: End

F31/F34 - NO PERM VOLTAGE SATISFIED

PCB - CPU

Next: End

F31/F34 SATISFIED

SIPHON

Next: End

F31/F34 SATISFIED

FLUE

Next: End

F31/F34 SATISFIED

CABLE TREE (APS ELECTRICAL CONNECTIONS)

Next: End

F31/F34 SATISFIED

AIR PRESSURE SENSOR GAS VALVE CONNECTIONS

Next: End

MULTIFUNCTIONAL DISPLAY CHECK

FUSE F1 (2A)

Next: End

MULTIFUNCTION DISPLAY CHECK

FUSE F2 (2A)

Next: End

MULTIFUNCTION DISPLAY CHECK

Next: End

INSTRUCTIONS - RESET

INCORRECT USE OF FAIL

Next: End

MULTIFUNCTION DISPLAY CHECK

FUSE F5 (1AT)

Next: End

NO DISPLAY, BOILER NOT FUNCTIONING

PCB - LCD

Next: End

INSTRUCTIONS - STATUS MODE

INCORRECT USE OF FAIL

Next: End

PUMP RUNNING

PCB - CPU

Next: End

PUMP RUNNING

PUMP ELECTRICAL CONNECTIONS

Next: End

HOT WATER

PCB - CPU

Next: End

CENTRAL HEATING

Next: End

S5 CH DEMAND

PCB - CPU

Next: End

S7 CH DEMAND

PCB - CPU

Next: End

S1 3

PCB - CPU

Next: End

S1 2

PCB - CPU

Next: End

S1

PCB - CPU

Next: End

S1

PRESSURE CONTROL

Next: End

S3

PCB - RELAY

Next: End

S3

ELECTRODE - IGNITION

Next: End

S3

TRANSFORMER - IGNITION

Next: End

S3

NG GAS VALVE

Next: End

S3

PCB

Next: End

F20 CH DEMAND

OVERHEAT THERMOSTAT RESET BUTTON

Next: End

F21/F25/F48/F50 CH DEMAND

FUSE 5A - TEMPORISED

Next: End

F25 CH DEMAND

FUSE F3 (0.1AF)

Next: End

F22/F23

PCB - RELAY

Next: End

F22/F23

PUMP COMPLETE

Next: End

F60

PCB

Next: End

F60

NG GAS VALVE

Next: End

F1/F20/F24

SENSOR - NTC

Next: End

F2/F23

SENSOR - NTC

Next: End

F10/F20/F24 CH DEMAND

SENSOR - NTC

Next: End

F11/F20/F24 CH DEMAND

SENSOR - NTC

Next: End

F12/F23 SATISFIED

SENSOR - NTC

Next: End

F24

SENSOR - NTC

Next: End

SPARKING

GOTO

Next: o2207-p1348, *

FAN SPEED

GOTO

Next: o2209-p1325, *

DHW MICROSWITCH OPERATION

GOTO

Next: o2227-p2212, *

S0/S31 DHW

PCB

Next: End

S0/S31 DHW

CABLE TREE (MICROSWITCH CONNECTIONS)

Next: End

S0/S31 DHW

UPPER PART COMPLETE - WATER SECTION

Next: End

S0/S31 DHW

HEAT EXCHANGER - SECONDARY - DHW (SCALED)

Next: End

S0/S31 CH

PCB - CPU

Next: End

S0/S31 CH

Next: End

F0/F20/F24

SENSOR - NTC

Next: End

S3

PCB - CPU

Next: End

F31/F34 - STUCK IN FAULT SATISFIED

PCB - CPU

Next: End

F31/F34 - STUCK MADE SATISFIED

PRESSURE CONTROL

Next: End

F31/F34 - NO VOLTAGE SATISFIED

PRESSURE CONTROL

Next: End

F80

PCB - CPU

Next: End

NO DISPLAY, BUT BOILER OPERATION APPEARS OKAY

PCB - LCD

Next: End

MULTIFUNCTION DISPLAY CHECK

TRANSFORMER

Next: End

MULTIFUNCTION DISPLAY CHECK

PCB (RECTIFIER BOARD)

Next: End

MULTIFUNCTIONAL DISPLAY CHECK

PCB - CPU

Next: End

PUMP RUNNING

PCB - RELAY

Next: End

PUMP RUNNING

PUMP COMPLETE

Next: End

HOT WATER 4

HEAT EXCHANGER - SECONDARY - DHW

Next: End

HOT WATER

HEAT EXCHANGER - SECONDARY - DHW

Next: End

HOT WATER

PRIMARY HEAT EXCHANGER

Next: End

HOT WATER 2

HEAT EXCHANGER - SECONDARY - DHW

Next: End

HOT WATER 3

HEAT EXCHANGER - SECONDARY - DHW

Next: End

HOT WATER

DIVERTER VALVE

Next: End

HOT WATER

PCB

Next: End

CENTRAL HEATING

PCB - CPU

Next: End

CENTRAL HEATING 2

Next: End

CODE REMAINS ON S1

CHARACTERISTIC TEST FROM DISPLAY SHOW A STATUS CODE

Next: p1325

CODE REMAINS ON S3

CHARACTERISTIC TEST FROM DISPLAY SHOW A STATUS CODE

Next: p1348

CODE REMAINS ON S5

CHARACTERISTIC TEST FROM DISPLAY SHOW A STATUS CODE

Next: !p1291

CODE REMAINS ON S7

CHARACTERISTIC TEST FROM DISPLAY SHOW A STATUS CODE

Next: !p1293

FAULT CODE F20 DISPLAYED

CHARACTERISTIC TEST FROM DISPLAY SHOW A FAULT CODE

Next: !p1394

FAULT CODE F21 DISPLAYED

CHARACTERISTIC TEST FROM DISPLAY SHOW A FAULT CODE

Next: !p2206

FAULT CODE F21/F25/F48/F50 DISPLAYED

CHARACTERISTIC TEST FROM DISPLAY SHOW A FAULT CODE

Next: !p1398

FAULT CODE F22/F23 DISPLAYED

CHARACTERISTIC TEST FROM DISPLAY SHOW A FAULT CODE

Next: p1451

FAULT CODE F25 DISPLAYED

CHARACTERISTIC TEST FROM DISPLAY SHOW A FAULT CODE

Next: !p1404

FAULT CODE F30/F32/F33 DISPLAYED

CHARACTERISTIC TEST FROM DISPLAY SHOW A FAULT CODE

Next: !p2208

FAULT CODE F60 DISPLAYED

CHARACTERISTIC TEST FROM DISPLAY SHOW A FAULT CODE

Next: p1497

FAULT CODE F1/F20 DISPLAYED AND MAYBE F24

CHARACTERISTIC TEST FROM NTC FAULT

Next: p1510

FAULT CODE F2/F23 DISPLAYED

CHARACTERISTIC TEST FROM NTC FAULT

Next: p1514

FAULT CODE F10/F20 DISPLAYED AND MAYBE F24

CHARACTERISTIC TEST FROM NTC FAULT

Next: !p1518

FAULT CODE F11/F20 DISPLAYED AND MAYBE F24

CHARACTERISTIC TEST FROM NTC FAULT

Next: !p1520

FAULT CODE F12/F23 DISPLAYED

CHARACTERISTIC TEST FROM NTC FAULT

Next: !p1522

FAULT CODE F24 DISPLAYED

CHARACTERISTIC TEST FROM NTC FAULT

Next: p1524

NO DISPLAY, BUT BOILER OPERATION APPEARS OKAY

CHARACTERISTIC TEST FROM MULTIFUNCTION DISPLAY CHECK

Next: !p303

NO DISPLAY, BOILER NOT FUNCTIONING

CHARACTERISTIC TEST FROM MULTIFUNCTION DISPLAY CHECK

Next: p23

CODE REMAINS ON S0 OR S31 FOR DHW

CHARACTERISTIC TEST FROM DISPLAY SHOW A STATUS CODE

Next: p2212

CODE REMAINS ON S10

CHARACTERISTIC TEST FROM DISPLAY SHOW A STATUS CODE

Next: !p2214

FAULT CODE F31/F34 DISPLAYED

CHARACTERISTIC TEST FROM DISPLAY SHOW A FAULT CODE

Next: p2272

ZERO VOLTS MESAURED

CHARACTERISTIC TEST FROM VOLTAGE AIR PRESSURE SENSOR (PRESSURE)

Next: p2278

VOLTAGE GREATER THAN EXPECTED

CHARACTERISTIC TEST FROM VOLTAGE AIR PRESSURE SENSOR (PRESSURE)

Next: p2280

FAULT CODE F80 DISPLAYED

CHARACTERISTIC TEST FROM DISPLAY SHOW A FAULT CODE

Next: !p2290

CH NOISY, DHW PREVIOUSLY NOISY

CHARACTERISTIC TEST FROM CENTRAL HEATING

Next: !p995

CH NOISY, DHW PREVIOUSLY OK

CHARACTERISTIC TEST FROM CENTRAL HEATING

Next: !p1003

DHW NOISY OPERATION

CHARACTERISTIC TEST FROM HOT WATER

Next: p979

DHW QUIET OPERATION, RADIATORS COLD

CHARACTERISTIC TEST FROM HOT WATER

Next: !p981

DHW QUIET OPERATION, RADIATORS WARM

CHARACTERISTIC TEST FROM HOT WATER

Next: p983

CH NOISY, DHW PREVIOUSLY NOISY

CHARACTERISTIC TEST FROM CENTRAL HEATING

Next: !p986

CH NOISY, DHW PREVIOUSLY OK

CHARACTERISTIC TEST FROM CENTRAL HEATING

Next: !p988

CH QUIET OPERATION

CHARACTERISTIC TEST FROM CENTRAL HEATING

Next: !p990

CH QUIET OPERATION

CHARACTERISTIC TEST FROM CENTRAL HEATING

Next: !p998

11/07/2018 15:13:53 1807_1_50_1 20/07/2018 13:55:11

11/07/2018 15:20:27

Next: End

IS A 'STATUS CODE' OR A 'FAULT CODE' DISPLAYED?

Next: p1208, f1379

CPU: FAN CONTROL

HEATING CONTROL TO HEATING & HOT WATER
CH TEMPERATURE CONTROL TO MAXIMUM

Next: p1328, f1329

FAN ELECTRICAL CONNECTIONS

Next: !p1330, !f1331

AIR PRESSURE SENSOR: ELECTRICAL CONNECTIONS

Next: p1340, !f2210

RELAY BOARD: IGNITION

MAIN ON/OFF CONTROL

Next: p1351, f1352

CPU: RELAY CONTROL

MAIN ON/OFF CONTROL

Next: !p1353, !f1354

IGNITION EARTH LEAD

Next: p1357, !f1358

GAS VALVE: SOLENOIDS RESISTANCE

Next: p1363, f1364

GAS VALVE ELECTRICAL CONNECTIONS

Next: !p1365, !f1366

DISPLAY SHOW A FAULT CODE

Next: p1502, ?1393, ?1395, ?1397, ?1399, ?1403, ?1405, ?1407, ?2271, ?2289

CPU: PUMP CONTROL

MAIN ON/OFF CONTROL

Next: !p1454, !f1455

GAS VALVE ELECTRICAL CONNECTIONS

Next: !p1500, !f1501

DHW MINIMUM FLOW RATE

Next: p2221, f2222

WATER SECTION MICROSWITCH

LIFT OFF WATER SECTION COVER
REMOVE ONE WIRE

Next: !p2229, !f2230

DHW INLINE FILTER

Next: !p2233, !f2226

EXTERNAL CONTROLS LIVE IN

MAIN ON/OFF CONTROL

Next: !p2254, !f2255

FUSE F1

Next: p27, !f26

FUSE F5

Next: !p35, !f34

PUMP DRIVER VOLTAGE

{GAINPCBACS}
MAIN

Next: p43, f42

CPU: PUMP CONTROL

MAIN ON/OFF CONTROL

Next: !p44, !f45

CPU: DIVERTER VALVE

MAIN ON/OFF CONTROL

Next: !p993, !f994

DISPLAY SHOW A STATUS CODE

Next: p2234, ?1286, ?1288, ?1290, ?1292, ?2211, ?2213

FAN SPEED

MAIN ON/OFF CONTROL

Next: p1326, f1327

AIR PRESSURE SENSOR

{GAINPCBACS}
MAIN

Next: !p1338, f1339

MOTHERBOARD FAN DRIVER

MAIN ON/OFF CONTROL

Next: p1332, !f1333

FAN ELECTRICAL CONNECTIONS

Next: p1334, !f1335

FAN SENSE VOLTAGE

MAIN ON/OFF CONTROL

Next: !p1336, !f1337

AIR PRESSURE SENSOR: GAS VALVE CONNECTIONS

REMOVE THE SENSOR BY PULLING DOWN AT THE FRONT AND PUSHING GENTLY BACK

Next: p1342, !f1343

CONDENSATE DRAIN

Next: p1344, !f1345

FLUE

Next: !p1346, !f1347

SPARKING

MAIN ON/OFF CONTROL

Next: p1349, f1350

CH BURNER IGNITES

MAIN ON/OFF CONTROL

Next: p2262, f1362

IGNITION LEAD SPARKING

MAIN ON/OFF CONTROL

Next: !p1355, f1356

IGNITION ELECTRODE LEAD

Next: !p1359, !f1360

BURNER PLAQUES

Next: !p1367, !f1368

PUMP DRIVER VOLTAGE

{GAINPCBACS}
MAIN

Next: p1452, f1453

PUMP LEAD VOLTAGE

MAIN ON/OFF CONTROL

Next: !p1456, !f1457

GAS VALVE: SOLENOIDS RESISTANCE

Next: !p1498, f1499

NTC FAULT

Next: p2243, ?1509, ?1513, ?1517, ?1519, ?1521, ?1523

NTC T1 CONNECTION

REMOVE X1 FROM CPU BOARD
REMOVE LEAD FROM NTC T1

Next: !p1511, !f1512

NTC T2 CONNECTION

REMOVE X1 FROM CPU BOARD
REMOVE LEAD FROM NTC T2

Next: !p1515, !f1516

NTC T0 CONNECTION

REMOVE X1 FROM CPU BOARD
REMOVE LEAD FROM NTC T0

Next: p1525, !f1526

NTC T1 CONNECTION

REMOVE X1 FROM CPU BOARD
REMOVE LEAD FROM NTC T1

Next: !p1527, !f1528

DHW MICROSWITCH OPERATION

Next: p2215, f2216

WATER SECTION MICROSWITCH LEADS

REMOVE PLUG X13 FROM MOTHERBOARD

Next: !p2228, f2218

WATER SECTION DIAPHRAGM

Next: !p2231, !f2232

EXTERNAL CONTROLS LIVE OUT

MAIN ON/OFF CONTROL

Next: p2250, f2253

NTC T0 CONNECTION

REMOVE X1 FROM CPU BOARD
REMOVE LEAD FROM NTC T0

Next: !p2261, !f2256

INTERNAL PROGRAMMER

MAIN ON/OFF CONTROL

Next: !p2251, !f2252

CONDENSATE DRAIN SEAL

Next: p2263, !f2264

FLAME SENSE ELECTRODE LEAD

Next: p2265, !f2266

INSPECTION FLAME SENSE ELECTRODE

Next: !p2267, !f2268

VOLTAGE AIR PRESSURE SENSOR (PERMANENT)

{GAINPCBACS}
MAIN ON/OFF CONTROL IN THE ON POSITION

Next: p2273, !f2274

VOLTAGE AIR PRESSURE SENSOR (PRESSURE)

MAIN ON/OFF CONTROL IN THE ON POSITION
ENSURE NO DEMANDS

Next: !p2275, ?2277, ?2279

AIR PRESSURE SENSOR: ELECTRICAL CONNECTIONS

Next: p2285, !f2286

CONDENSATE DRAIN

Next: p2281, !f2282

FLUE

Next: !p2283, !f2284

AIR PRESSURE SENSOR: GAS VALVE CONNECTIONS

REMOVE THE SENSOR BY PULLING DOWN AT THE FRONT AND PUSHING GENTLY BACK

Next: !p2287, !f2288

MAINS TRANSFORMER SECONDARY

{GAINPCBACS}
MAIN ON/OFF CONTROL IN THE ON POSITION
DISCONNECT CONNECTOR X10

Next: p25, f24

DISPLAY BOARD 5V

MAIN ON/OFF CONTROL

Next: p33, f32

FUSE F2

Next: p29, !f28

MAINS SUPPLY

GAIN ACCESS TO INSTALLER TERMINAL BLOCK
(USE INSULATION MAT AS NECESSARY)

Next: !p31, !f30

MULTIFUNCTION DISPLAY BOARD

Next: !p37, !f36

PUMP LEAD VOLTAGE

MAIN ON/OFF CONTROL

Next: !p47, !f46

CENTRAL HEATING

MAIN ON/OFF CONTROL

Next: !p984, ?985, ?987, ?989

MOTHERBOARD DIVERTER VALVE DRIVER

{GAINPCBACS}
MAIN

Next: !p991, f992

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