XSol Diagnostic System

Interactive Test Sequence Navigator

Welcome to the XSol Diagnostic System

This system provides interactive diagnostic tests with proper sequence navigation based on the decoded .seq file logic.

Start Diagnostic Sequence

or choose a specific test below:

4793001 KESTON C36 COMBI

WARNING - IMPORTA

Next: &1, *

NO FAULT FOUND

Next: nff

CASE REMOVAL


OUTER CASE RE

Next: &3, !f16

POWER UP SELF TEST

ENSURE NO DEMAND IS PRESENT

Next: &841, ?4, ?6, ?639, ?1516

TYPE OF DIAGNOSTIC PROCEDURE

PLEASE SELECT FROM O

Next: &14, !f13

OPERATIONAL SEQUENCE

N

Next: &17, !f15

OBSERVATION DHW FLOW RATE

Next: &33, f51

OBSERVATION FAN AND PUMP OVERRUN

Next: &nff, !f1164

CH OPERATION

ENSURE WINTER MODE HAS BEEN SELECTED
CH TEMPERATURE SET TO MAX

Next: &155, ?149, ?151, ?153, ?333

DHW OPERATION

DHW TEMPERATURE SET TO MAX

Next: &28, ?137, ?139, ?141, ?143, ?145

BURNER IGNITES AND ESTABLISHES

DHW TEMPERATURE SET TO MAX

Next: &1080, ?131, ?133, ?192, ?727

OBSERVATION FAN RUNS DHW DEMAND

DHW TEMPERATURE SET TO MAX

Next: &30, f84

OBSERVATION PUMP RUNS DHW DEMAND

DHW TEMPERATURE SET TO MAX

Next: &31, f79

OBSERVATION DHW DEMAND RECOGNISED

DHW TEMPERATURE SET TO MAX

Next: &32, f63

OBSERVATION SYSTEM PRESSURE

CH TEMPERATURE SET TO MAX

Next: &27, f494

MEASURE COMBUSTION SETTINGS

NOTE: A CALIBRATED C

Next: &29, !f1450

E08 FAULT CODE

NOT USED

Next: &nff, f1009

E07 FAULT CODE

NOT USED

Next: &nff, f574

E03 FAULT CODE

NOT USED

Next: &nff, f1090

E02 FAULT CODE

NOT USED

Next: &nff, f984

E24 FAULT CODE

NOT USED

Next: &nff, !f606

E23 - E47 - E37 FAULT CODE

NOT USED

Next: &nff, f597

E10 - E25 - E12 TO E22 FAULT CODE

NOT USED

Next: &nff, f591

E11 FAULT CODE

NOT USED

Next: &nff, f564

E35 - E34 FAULT CODE

NOT USED

Next: &nff, f529

E32 OR 33 FAULT CODE

NOT USED

Next: &nff, f539

E30 OR 31 FAULT CODE

NOT USED

Next: &nff, f532

E43 OR E44 FAULT CODE

NOT USED

Next: &nff, f552

E41 OR E99 FAULT CODE

NOT USED

Next: &nff, f609

E38 FAULT CODE

NOT USED

Next: &nff, !f607

E45 OR E46 FAULT CODE

Next: &nff, f559

FURTHER INVESTIGATION FUSE BLOWN

NOT USED

Next: &nff, f1307

BOILER CONTROLS AND DISPLAY INFORMATION

Next: &12, !f842

E40 FAULT CODE

NOT USED

Next: &nff, f1059

PRESSURE GAS INLET

DHW TEMPERATURE SET TO MAX
ATTACH PRESSURE GAUGE TO THE INLET PRESSURE TEST POINT

Next: &311, !f1081

E81 FAULT CODE

NOT USED

Next: &nff, f1446

FAULT CODE E02 2

KIT - IGNITOR - ELECTRODE

Next: End

E23 - E47 - E37 CODES

HARNESS

Next: End

E07 FAULT CODE 2

THERMISTOR FLUE

Next: End

E08 FAULT CODE

DIRECTION CHOICE OR CONTINUE

Next: End

FAULT CODE E08

KIT - IGNITOR - ELECTRODE

Next: End

FAULT CODE E02

Next: End

FAULT CODE E08

CABLE - IGNITOR

Next: End

FAULT CODE E40 2

SENSOR - PRESSURE

Next: End

FAULT CODE E40

SENSOR - PRESSURE

Next: End

COMBUSTION TEST

PRESSURE GAS INLET

Next: End

DHW TOO HOT

THERMISTOR DHW

Next: End

DHW TOO HOT

THERMISTOR FLOW

Next: End

DHW TOO HOT

THERMISTOR RETURN

Next: End

FAULT CODE E03

THERMISTOR FLOW

Next: End

FAULT CODE E03

THERMISTOR RETURN

Next: End

PUMP AND FAN OVERRUN

CONTROL BLOCK

Next: End

FAULT CODE E07

PUMP HYDROBLOCK ASSEMBLY

Next: End

FAULT CODE E03

VALVE - CH FLOW AND RETURN

Next: End

PUMP DOES NOT RUN E03

HARNESS

Next: End

FAULT CODE E03

PUMP HYDROBLOCK ASSEMBLY

Next: End

FAN AND PUMP OVERRUN E03

CONTROL BLOCK

Next: End

FAULT CODE E03

Next: End

FAULT CODE E03 2E03

THERMISTOR FLOW

Next: End

FAULT CODE E03 2E03

THERMISTOR RETURN

Next: End

FAULT CODE E03

HEAT EXCHANGER ASSEMBLY - E03 FAULT CODE

Next: End

FOR TYPE DIAG PROCEDURE

DIRECTION CHOICE OR CONTINUE

Next: End

FUSE FURTHER INVESTIGATION

PUMP HYDROBLOCK ASSEMBLY

Next: End

FUSE FURTHER INVESTIGATION

FAN

Next: End

FUSE FURTHER INVESTIGATION

PANEL - CONTROL

Next: End

FUSE FURTHER INVESTIGATION

KIT - GAS VALVE - NG

Next: End

FUSE FURTHER INVESTIGATION

MOTOR - DIVERTER VALVE

Next: End

FUSE BLOWN

FURTHER INVESTIGATION FUSE

Next: End

FAN SPEED CONTROL

HARNESS

Next: End

FAN SPEED CONTROL 2

HARNESS

Next: End

FAULT CODE E03 2

THERMISTOR FLOW

Next: End

FAULT CODE E03 2

THERMISTOR RETURN

Next: End

FAULT CODE E03

KIT - PLATE HEAT EXCHANGER - DHW

Next: End

DOES NOT RESPOND TO CH DEMAND

CONTROL BLOCK

Next: End

BOILER BAFFLES OR NOISY

KIT - BURNER

Next: End

CH NOISY KETTLING

VALVE - CH FLOW AND RETURN

Next: End

BOILER NOISY KETTLING

Next: End

E07 FAULT CODE

THERMISTOR RETURN

Next: End

FIRE NO DEMAND

Next: End

FIRES NO DEMAND

THERMISTOR DHW

Next: End

FIRES NO DEMAND

THERMISTOR FLOW

Next: End

DHW 3

HARNESS

Next: End

DHW RADS HOT

PUMP HYDROBLOCK ASSEMBLY

Next: End

DHW COOL RADS HOT

ADAPTOR - CAPACITOR C/W RESISTORS

Next: End

DIVERTER MOTOR 2

HARNESS

Next: End

DIVERTER MOTOR

HARNESS

Next: End

CH BOILER TO TEMP

PUMP HYDROBLOCK ASSEMBLY

Next: End

DHW COOL RADS HOT CH

ADAPTOR - CAPACITOR C/W RESISTORS

Next: End

DIVERTER MOTOR 2 CH

HARNESS

Next: End

DIVERTER MOTOR CH

HARNESS

Next: End

E81 FAULT CODE

DIRECTION CHOICE OR CONTINUE

Next: End

INCORRECT COMBUSTION

COMBUSTION ADJUSTMENT

Next: End

BURNER DOES NOT IGNITE

HEAT EXCHANGER ASSEMBLY - IGNITION PROBLEMS

Next: End

FAULT CODE E02 2

CABLE - IGNITOR

Next: End

E03 FAULT CODE

KIT AUTO AIR VENT

Next: End

E07 FAULT CODE

KIT AUTO AIR VENT

Next: End

OPERATIONAL SEQUENCE

DIRECTION CHOICE OR CONTINUE

Next: End

DHW BOILER NOISEY

KIT AUTO AIR VENT

Next: End

DOES NOT RESPOND TO CH DEMAND DHW

CONTROL BLOCK

Next: End

DOES NOT RESPOND TO CH DEMAND DHWDHW 2

CONTROL BLOCK

Next: End

DOES NOT RESPOND TO CH DEMAND 3

CONTROL BLOCK

Next: End

DHW NOISY KETTLING

PUMP HYDROBLOCK ASSEMBLY

Next: End

DHW NOISY KETTLING

THERMISTOR FLOW

Next: End

DHW NOISY KETTLING

THERMISTOR RETURN

Next: End

DHW COOL RADS COOL

KIT AUTO AIR VENT

Next: End

CASE REMOVAL

DIRECTION CHOICE OR CONTINUE

Next: End

DHW HOT THEN COLD

KIT AUTO AIR VENT

Next: End

PUMP RUNS CONTINUOUSLEY

THERMISTOR DHW

Next: End

PUMP RUNS CONTINUOUSLEY

THERMISTOR FLOW

Next: End

PUMP CONTINUES TO RUN

CONNECTOR X3 PUMP CONTROL

Next: End

E09 FAULT CODE

KIT - GAS VALVE - NG

Next: End

BURNER DOES NOT ESTABLISH

PRESSURE GAS INLET

Next: End

BURNER DOES NOT IGNITE3

CONDENSATE EXTERNAL PIPE

Next: End

BURNER BAFFLES OUT OR NOISY

FLUE

Next: End

BURNER BAFFLES OUT OR NOISY

HEAT EXCHANGER ASSEMBLY - IGNITION PROBLEMS

Next: End

DHW RUNS HOT THEN COLD

PUMP HYDROBLOCK ASSEMBLY

Next: End

DHW HOT THEN COLD

THERMISTOR DHW

Next: End

DHW HOT THEN COLD

THERMISTOR FLOW

Next: End

DHW HOT THEN COLD

THERMISTOR RETURN

Next: End

DHW COOL RADS COLD

PUMP HYDROBLOCK ASSEMBLY

Next: End

ERROR CODE

DIRECTION CHOICE OR CONTINUE

Next: End

DHW COOL RADS COOL 2

THERMISTOR FLOW

Next: End

DHW COOL RADS COOL 2

THERMISTOR FLUE

Next: End

CH NOISY KETTLING

PUMP HYDROBLOCK ASSEMBLY

Next: End

CH NOISY

THERMISTOR RETURN

Next: End

BOILER COOL SYS COOL

THERMISTOR RETURN

Next: End

BOILER UP TO TEMP

VALVE - CH FLOW AND RETURN

Next: End

BOILER UPTO TEMP SYS COOL

PUMP HYDROBLOCK ASSEMBLY

Next: End

BOILER UP TO TEMP RADS COOL

Next: End

CH NOISY

THERMISTOR FLOW

Next: End

SYSTEM PRESSURE

VESSEL - EXPANSION

Next: End

FURTHER INVESTIGATION FUSED SPUR

Z DIRECTION CHOICE OR CONTINUE

Next: End

DHW FLOW RATE

COLD FEED ISOLATION VALVE

Next: End

FAULT CODE E35

Next: End

DHW FLOW RATE

FILTER - DHW

Next: End

E11 FAULT CODE

THERMISTOR FLOW

Next: End

E11 FAULT CODE

THERMISTOR RETURN

Next: End

E07 FAULT CODE

THERMISTOR FLUE

Next: End

E12 TO E22 FAULT CODE

DIRECTION CHOICE OR CONTINUE

Next: End

E47 E23 E37 FAULT CODE

HARNESS

Next: End

E47 E23 E37

SENSOR - PRESSURE

Next: End

E24 FAULT CODE

SYSTEM PRESSURE 4 TIMES 24HRS

Next: End

E38 FAULT CODE

PANEL - CONTROL

Next: End

POWER IGNITION PCB

HARNESS

Next: End

IGNITION TO DISPLAY PCB

HARNESS

Next: End

DHW FLOW RATE

SENSOR - FLOW

Next: End

FAN DOES NOT RUN

THERMISTOR DHW

Next: End

FAN DOES NOT RUN DHW DEMAND

THERMISTOR FLOW

Next: End

FAN DOES NOR RUN DHW DEMAND

THERMISTOR RETURN

Next: End

BURNER DOES NOT IGNITE

CABLE - IGNITOR

Next: End

BURNER DOES NOT IGNITE

PRESSURE GAS INLET

Next: End

BURNER DOES NOT IGNITE

CONDENSATE EXTERNAL PIPE

Next: End

FAN PRESSURE

FLUE

Next: End

BURNER DOES NOT IGNITE

KIT - BURNER

Next: End

BURNER DOES NOT IGNITE

KIT - IGNITOR - ELECTRODE

Next: End

BURNER DOES NOT IGNITE 2

KIT - BURNER

Next: End

E09 FAULT CODE2

CONTROL BLOCK

Next: End

TURBINE DHW 2

HARNESS

Next: End

DHW FLOW

COLD WATER SUPPLY POOR

Next: End

PUMP DOES NOT RUN

HARNESS

Next: End

BOILER CONTROLS

DIRECTION CHOICE OR CONTINUE

Next: End

BURNER DOES NOT IGNITE 2

KIT - IGNITOR - ELECTRODE

Next: End

BURNER DOES NOT ESTABLISH 2

PRESSURE GAS INLET

Next: End

BURNER DOES NOT IGNITE4

CONDENSATE EXTERNAL PIPE

Next: End

BURNER DOES NOT ESTABLISH2

CABLE - IGNITOR

Next: End

BURNER DOES NOT ESTABLISH 2

KIT - IGNITOR - ELECTRODE

Next: End

BURNER DOES NOT ESTABLISH

KIT - BURNER

Next: End

BURNER DOES NOT ESTABLISH

KIT - IGNITOR - ELECTRODE

Next: End

BURNER DOES NOT ESTABLISH

HEAT EXCHANGER ASSEMBLY - IGNITION PROBLEMS

Next: End

BURNER DOES NOT ESTABLISH

FLUE

Next: End

FAULT CODE E30 OR E31

THERMISTOR FLOW

Next: End

FAULT CODE E30 OR 31

HARNESS

Next: End

DHW DEMAND

THERMISTOR DHW

Next: End

DHW DEMAND NOT RECOGNISED

THERMISTOR FLOW

Next: End

DHW DEMAND NOT RECOGNISED

THERMISTOR RETURN

Next: End

TURBINE DHW

HARNESS

Next: End

DHW NOT RECOGNISED

HARNESS

Next: End

DHW COOL RADS COOL

THERMISTOR FLOW

Next: End

DHW COOL RADS COOL 2

THERMISTOR RETURN

Next: End

DHW COOL RADS COOL

THERMISTOR FLUE

Next: End

DHW COOL RADS COOL

THERMISTOR DHW

Next: End

FAULT CODE E32 OR E33

HARNESS

Next: End

FIRES NO DEMAND 2

THERMISTOR DHW

Next: End

FAULT CODE E43 OR E44

HARNESS

Next: End

FAULT CODE E43 OR E44

THERMISTOR RETURN

Next: End

E45 OR E46 FAULT CODE

HARNESS

Next: End

E45 OR E46 FAULT CODE

THERMISTOR FLUE

Next: End

FAN DOES NOT RUN

HARNESS

Next: End

FAULT CODE E02

CABLE - IGNITOR

Next: End

FAULT CODE E02

KIT - IGNITOR - ELECTRODE

Next: End

E47 E23 E37 FAULT CODE 2

CONTROL BLOCK

Next: End

FAULT CODE E08

CONTROL BLOCK

Next: End

FAULT CODE E40

KIT - SAFETY VALVE

Next: End

DHW TOO HOT

CONTROL BLOCK

Next: End

FAULT CODE E03

CONTROL BLOCK

Next: End

DHW DEMAND E03

PUMP HYDROBLOCK ASSEMBLY

Next: End

FAULT CODE E03 2E03

CONTROL BLOCK

Next: End

FAULT CODE E03

Next: End

FUSE FURTHER INVESTIGATION

CONTROL BLOCK

Next: End

FUSE FURTHER INVESTIGATION

HARNESS - FUSE FURTHER INVESTIGATION

Next: End

FUSE FURTHER INVESTIGATION

RETEST APPLIANCE - FUSE FURTHER INVESTIGATION

Next: End

DC VOLTAGE TO FAN

CONTROL BLOCK

Next: End

FAN DOES NOT RUN DHW DEMAND

CONTROL BLOCK

Next: End

FAULT CODE E03 2

CONTROL BLOCK

Next: End

FAULT CODE E03

RETEST - FAULT CODE E03

Next: End

DOES NOT RUN DHW DEMAND

PANEL - CONTROL

Next: End

BURNER DOES NOT ESTABLISH

KIT - GAS VALVE - NG

Next: End

BURNER DOES NOT IGNITE

KIT - GAS VALVE - NG

Next: End

BURNER BAFFLES OUT OR NOISY

KIT - GAS VALVE - NG

Next: End

DOES NOT RESPOND CH DEMAND

Next: End

FAULT CODE E07

HEAT EXCHANGER ASSEMBLY - FLUE OVERHEAT

Next: End

BOILER FIRES WITH NO DEMAND

FROST PROTECTION MODE

Next: End

FIRES NO DEMAND

CONTROL BLOCK

Next: End

DHW DEMAND NOT RECOGNISED

SENSOR - FLOW

Next: End

DHW COOL RADS HOT

CONTROL BOX - CAPACITOR

Next: End

DHW COOL RADS HOT

MOTOR - DIVERTER VALVE

Next: End

DHW COOL RADS HOT CH

CONTROL BOX - CAPACITOR

Next: End

DHW COOL RADS HOT CH

MOTOR - DIVERTER VALVE

Next: End

E81 FAULT CODE

Z DIRECTION CHOICE OR CONTINUE

Next: End

BURNER DOES NOT IGNITE

FAN

Next: End

E03 FAULT CODE

PANEL - CONTROL

Next: End

FROST PROTECTION

FROST PROTECTION MODE

Next: End

SECONDARY HEAT EXCHANGER

KIT - PLATE HEAT EXCHANGER - DHW

Next: End

DHW HOT THEN COLD

HEAT EXCHANGER ASSEMBLY - E03 FAULT CODE

Next: End

DOES NOT RESPOND CH DEMAND DHW

Next: End

SECONDARY HEAT EXCHANGERDHW 2

KIT - PLATE HEAT EXCHANGER - DHW

Next: End

DHW HOT THEN COLDDHW 2

HEAT EXCHANGER ASSEMBLY - E03 FAULT CODE

Next: End

DOES NOT RESPOND CH DEMAND DHWDHW 2

Next: End

DHW NOISY KETTLING

KIT - PLATE HEAT EXCHANGER - DHW

Next: End

DOES NOT RESPOND CH DEMAND 2

Next: End

DHW NOISY

HEAT EXCHANGER ASSEMBLY

Next: End

PUMP RUNS CONTINUOUSLEY

CONTROL BLOCK

Next: End

E09 FAULT CODE

CONTROL BLOCK

Next: End

BURNER DOES NOT IGNITE ESTABLISH3

KIT - CONDENSATE TRAP C/W PLUG

Next: End

DHW HOT THEN COLD

CONTROL BLOCK

Next: End

ERROR CODE DISPLAYED

Z DIRECTION CHOICE OR CONTINUE

Next: End

NO DISPLAY

HARNESS

Next: End

CH NOISEY

HEAT EXCHANGER ASSEMBLY

Next: End

NOISY

Next: End

BOILER COOL SYS COOL

CONTROL BLOCK

Next: End

BOILER UP TO TEMP RADS COOL

Next: End

CH NOISY KETTLING

CONTROL BLOCK

Next: End

NO DISPLAY

Next: End

NO DISPLAY

FUSE (FUSED SPUR)

Next: End

SYSTEM PRESSURE

HOSE - FLEXIBLE

Next: End

FAULT CODE E35

CONTROL BLOCK

Next: End

E11 FAULT CODE

CONTROL BLOCK

Next: End

E07 FAULT CODE

CONTROL BLOCK

Next: End

E07 FAULT CODE

RETEST APPLIANCE

Next: End

E12 TO E22 FAULT CODE

Z DIRECTION CHOICE OR CONTINUE

Next: End

E47 E23 E37 FAULT CODE

CONTROL BLOCK

Next: End

E47 E23 E37 FAULT CODE

SYSTEM WATER PRESSURE

Next: End

E41 E99 FAULT CODE

CONTROL BLOCK

Next: End

DOES NOT RUN DHW DEMAND

FAN

Next: End

NO SPARK OUTPUT

CONTROL BLOCK

Next: End

BURNER DOES NOT IGNITE ESTABLISH

KIT - CONDENSATE TRAP C/W PLUG

Next: End

PRESSURE FAN LOW

KIT - GAS VALVE - NG

Next: End

E09 FAULT CODE2

KIT - GAS VALVE - NG

Next: End

DHW DEMAND NOT RECOGNISED

CONTROL BLOCK

Next: End

FLOW RATE

KIT - PLATE HEAT EXCHANGER - DHW

Next: End

DHW DEMAND

PUMP HYDROBLOCK ASSEMBLY

Next: End

NO DISPLAY

PANEL - CONTROL

Next: End

BURNER DOES NOT ESTABLISH

CONTROL BLOCK

Next: End

BURNER DOES NOT IGNITE ESTABLISH4

KIT - CONDENSATE TRAP C/W PLUG

Next: End

E30 OR 31 FAULT CODE

CONTROL BLOCK

Next: End

E30 E31 FAULT CODE

KIT - THERMAL FUSE

Next: End

DHW COOL RADS HOT

DIVERTER VALVE

Next: End

DHW DEMAND NOT RECOGNISED 2

CONTROL BLOCK

Next: End

DHW COOL RADS COOL

CONTROL BLOCK

Next: End

FAULT CODE E32 OR E33

CONTROL BLOCK

Next: End

FAULT CODE E43 OR E44

CONTROL BLOCK

Next: End

FAULT CODE E45 OR 46

CONTROL BLOCK

Next: End

FAULT CODE E02

CONTROL BLOCK

Next: End

E02 FAULT CODE

KIT - GAS VALVE - NG

Next: End

FLOW TEMPERATURE GREATER THAN 85°C AND BOILER STILL FIRED

CHARACTERISTIC TEST FROM CH OPERATION - FAULT CODE E03 OVERHEAT

Next: p1252

OVERHEAT OCCURS - DIFF OK - FLOW TEMP LESS THAN 82°C

CHARACTERISTIC TEST FROM CH OPERATION - FAULT CODE E03 OVERHEAT

Next: p1332

DIFFERENTIAL GREATER THAN 30°C - OVERHEAT DOES OR DOES NOT OCCUR

CHARACTERISTIC TEST FROM CH OPERATION - FAULT CODE E03 OVERHEAT

Next: p1227

BURNER IGNITES BUT DOES NOT ESTABLISH

CHARACTERISTIC TEST FROM BURNER IGNITES AND ESTABLISHES

Next: p868

BURNER IGNITES BUT BAFFLES OUT OR NOISY

CHARACTERISTIC TEST FROM BURNER IGNITES AND ESTABLISHES

Next: p232

DHW TOO HOT

CHARACTERISTIC TEST FROM DHW OPERATION

Next: p1082

DHW COOL - RADS HOT WITH NO CH DEMAND

CHARACTERISTIC TEST FROM DHW OPERATION

Next: p140

DHW RUNS HOT THEN COLD

CHARACTERISTIC TEST FROM DHW OPERATION

Next: p142

DHW COOL RADS COLD

CHARACTERISTIC TEST FROM DHW OPERATION

Next: p144

DHW - BOILER NOISY

CHARACTERISTIC TEST FROM DHW OPERATION

Next: p1500

BOILER UP TO TEMPERATURE RADS COOL

CHARACTERISTIC TEST FROM CH OPERATION

Next: p150

CH BOILER NOISY KETTLING

CHARACTERISTIC TEST FROM CH OPERATION

Next: p1358

PUMP CONTINUES TO RUN AFTER SELF TEST COMPLETE

CHARACTERISTIC TEST FROM POWER UP SELF TEST

Next: p1518

BOILER AND SYSTEM TEMPERATURE COOL

CHARACTERISTIC TEST FROM CH OPERATION

Next: p415

DIFFERENTIAL TEMPERATURE STILL EXCESSIVE

CHARACTERISTIC TEST FROM MEASURE PRIMARY HEAT EXCHANGER DIFFERENTIAL

Next: !p1545

BOILER DOES NOT RESPOND TO CH DEMAND

CHARACTERISTIC TEST FROM CH OPERATION

Next: p1549

DIFFERENTIAL TEMPERATURE STILL EXCESSIVE

CHARACTERISTIC TEST FROM MEASURE PRIMARY HEAT EXCHANGER DIFFERENTIAL

Next: !p1556

BOILER DOES NOT RESPOND TO CH DEMAND

CHARACTERISTIC TEST FROM CH OPERATION

Next: p1558

BOILER NOISY KETTLING

CHARACTERISTIC TEST FROM CH OPERATION - DHW NOISY KETTLING

Next: p1564

BOILER DOES NOT RESPOND TO CH DEMAND

CHARACTERISTIC TEST FROM CH OPERATION

Next: p1566

FAULT CODE E09

CHARACTERISTIC TEST FROM BURNER IGNITES AND ESTABLISHES

Next: p193

BOILER DOES NOT RESPOND TO CH DEMAND

CHARACTERISTIC TEST FROM CH OPERATION

Next: p334

NO DISPLAY

CHARACTERISTIC TEST FROM POWER UP SELF TEST

Next: p40

TEMPERATURE DIFFERENTIAL INCORRECT LOCAL NOISE

CHARACTERISTIC TEST FROM MEASURE FLOW AND RETURN DIFFERENTIAL

Next: !p430

TEMPERATURE DIFFERENTIAL OK - NOISE DUE TO SYSTEM

CHARACTERISTIC TEST FROM MEASURE FLOW AND RETURN DIFFERENTIAL

Next: !p432

FAULT CODE DISPLAYED

CHARACTERISTIC TEST FROM POWER UP SELF TEST

Next: p37

BOILER FIRES WITH NO DEMAND

CHARACTERISTIC TEST FROM POWER UP SELF TEST

Next: p641

BURNER DOES NOT IGNITE

CHARACTERISTIC TEST FROM BURNER IGNITES AND ESTABLISHES

Next: p729

FAN PRESSURE DOES NOT REACH -4MB (EG -3MB)

CHARACTERISTIC TEST FROM MEASURE FAN PRESSURE

Next: p739

FAN PRESSURE EXCEEDS -5MB (EG -6MB)

CHARACTERISTIC TEST FROM MEASURE FAN PRESSURE

Next: !p762

FAN PRESSURE CORRECT - BUT DOES NOT REDUCE TO 0.00MB

CHARACTERISTIC TEST FROM MEASURE FAN PRESSURE

Next: p743

30/10/2017 12:10:42 1708_1_50_1 06/03/2018 13:54:20

07/02/2018 09:02:05

Next: End

RESISTANCE THERMISTOR FLUE

REMOVE LEADS TO FLUE THERMISTOR

Next: p1388, !f1008

RESET BOILER E08 FAULT CODE

Next: p1010, !f1011

VOLTAGE PRESSURE SENSOR SYSTEM OUTPUT - PRIMARY DRAINED

DRAIN PRIMARY SYSTEM WATER FROM BOILER UNTIL NO PRESSURE IS IN SYSTEM

Next: p1060, !f1077

BOILER RESET - FAULT CODE E03

ENSURE BOILER IS COOL AND NO DEMAND FOR DHW AND CH

Next: p1191, f1092

RESISTANCE THERMISTOR FLOW

REMOVE LEADS TO FLOW

Next: p1093, !f1094

OBSERVATION PUMP - SPEED CONTROL

{GAINPCBACS}
REMOVE CONNECTOR X3 FROM DISPLAY PCB AND LEAVE IN A SAFE PLACE

Next: !p1455, f1197

VOLTAGE PUMP AT PUMP

REMOVE THE COVER FROM THE PUMP, LEAVE IN A SAFE PLACE

Next: !p1198, !f1199

RESISTANCE LIVE - NEUTRAL - EARTH

Next: p1308, f1309

RESISTANCE DISCONNECT PUMP

REMOVE PUMP COVER
REMOVE ELECTRICAL CONNECTIONS TO PUMP ASSEMBLY

Next: p1310, !f1311

RESISTANCE GAS VALVE - FURTHER INVESTIGATION FUSE

REMOVE IGNITION PCB FROM GAS VALVE AND MAKE SAFE

Next: !p1318, !f1319

RESISTANCE HARNESS FAN SPEED CONTROL

REMOVE IGNITION PCB

Next: !p1326, !f1327

VOLTAGE SWITCHED LIVE INPUT (FIRES NO DEMAND)

ENSURE NO DEMANDS

Next: p1394, !f1395

INSPECTION DIVERTER VALVE PADDLE

REMOVE DIVERTER VALVE ACTUATOR (MOTOR) FROM VALVE BODY

Next: p1424, !f1423

RESISTANCE HARNESS DIVERTER MOTOR

REMOVE IGNITION PCB

Next: !p1429, !f1430

INSPECTION DIVERTER VALVE PADDLE

REMOVE DIVERTER VALVE ACTUATOR (MOTOR) FROM VALVE BODY

Next: p1436, !f1435

RESISTANCE HARNESS DIVERTER MOTOR

REMOVE IGNITION PCB

Next: !p1441, !f1442

RESET BOILER E81 FAULT CODE

BEFORE POWER IS REIN

Next: !p1447, !f1448

MEASURE PRIMARY HEAT EXCHANGER DIFFERENTIAL

CH TEMPERATURE SET TO MAX
ATTACH TEMPERATURE CLAMPS AS INDICATED BY THE RED ARROWS

Next: !p1542, ?1544, ?1548

MEASURE PRIMARY HEAT EXCHANGER DIFFERENTIAL

CH TEMPERATURE SET TO MAX
ATTACH TEMPERATURE CLAMPS AS INDICATED BY THE RED ARROWS

Next: !p1554, ?1555, ?1557

INSPECTION X3 CONNECTOR PUMP CONTROL

{GAINPCBACS}

Next: p1614, !f1619

INSPECTION CONDENSATE PIPE

Next: !p237, !f238

VOLTAGE TERMINAL BLOCK MAINS INPUT

Next: !p43, f46

RESISTANCE FUSE (FUSED SPUR)

REMOVE FUSE FROM FUSED SPUR

Next: !p47, f48

FUSE FURTHER INVESTIGATION

THE INFORMATION PROV

Next: !p49, !f50

INSPECTION EXPANSION VESSEL PRESSURE

DRAIN PRIMARY SYSTEM WATER FROM BOILER

Next: !p495, !f496

INSPECTION ISOLATION VALVE COLD FEED

Next: p807, !f53

VOLTAGE SOCKET AND SEE

Next: !p530, !f531

RESISTANCE THERMAL FUSE

REMOVE THE GREEN OR BLACK LEAD FROM THE THERMAL FUSE TERMINAL BLOCK

Next: !p914, f614

RESISTANCE THERMISTOR DHW

REMOVE LEADS TO DHW

Next: p970, !f973

RESISTANCE THERMISTOR RETURN

REMOVE LEADS TO RETU

Next: p975, !f978

RESISTANCE THERMISTOR FLUE

REMOVE LEADS TO FLUE THERMISTOR

Next: p980, !f983

RESISTANCE THERMISTOR FLOW

REMOVE LEADS TO FLOW

Next: p565, !f566

RESET BOILER

ENSURE BOILER IS COOL AND NO DEMAND FOR DHW AND CH

Next: p1489, f576

RESISTANCE THERMISTOR FLUE

REMOVE LEADS TO FLUE THERMISTOR

Next: !p577, !f578

MAINS RESET BOILER

BEFORE POWER IS REINSTATED, CONFIRM ALL PCB CONNECTORS ARE CORRECTLY FITTED AND LOCATED.

Next: !p592, !f593

VOLTAGE PRESSURE SENSOR SYSTEM OUTPUT

Next: p1001, f599

VOLTAGE PRESSURE SENSOR SYSTEM INPUT

Next: p600, f601

RESISTANCE HARNESS PRESSURE SENSOR SYSTEM

REMOVE FRONT FACIA F

Next: !p602, !f603

RESISTANCE HARNESS POWER IGNITION PCB

REMOVE IGNITION PCB FROM GAS VALVE AND REMOVE COVER,
LEAVE CONNECTORS IN PLACE

Next: p610, !f611

RESISTANCE THERMISTOR FLOW

REMOVE LEADS TO FLOW

Next: p618, !f915

VOLTAGE DHW TURBINE OUTPUT

Next: p933, f65

VOLTAGE DHW TURBINE INPUT

Next: p1418, f75

RESISTANCE THERMISTOR DHW

REMOVE LEADS TO DHW

Next: p688, !f689

RESISTANCE LEAD IGNITION

REMOVE IGNITION LEAD FROM BOILER

Next: !p732, !f733

INSPECTION CONDENSATE PIPE

Next: !p750, !f751

RESISTANCE HARNESS DHW TURBINE

REMOVE IGNITION PCB

Next: !p77, !f78

OBSERVATION PUMP - SPEED CONTROL

{GAINPCBACS}
REMOVE CONNECTOR X3 FROM DISPLAY PCB AND LEAVE IN A SAFE PLACE

Next: !p1340, f81

VOLTAGE PUMP AT PUMP

REMOVE THE COVER FROM THE PUMP, LEAVE IN A SAFE PLACE

Next: !p82, !f83

VOLTAGE FAN MAINS

Next: p694, !f99

INSPECTION CONDENSATE PIPE AND TRAP

Next: p887, f874

INSPECTION CONDENSATE PIPE

Next: !p875, !f876

VOLTAGE SOCKET AND SEE

Next: p985, !f1016

RESISTANCE LEAD IGNITION

REMOVE IGNITION LEAD FROM BOILER

Next: p995, !f1454

RESISTANCE HARNESS PRESSURE SENSOR SYSTEM

REMOVE FRONT FACIA F

Next: !p1002, !f1003

RESISTANCE LEAD IGNITION

REMOVE IGNITION LEAD FROM BOILER

Next: p1012, !f1017

INSPECTION IGNITION ELECTRODE

REMOVE IGNITION/FLAME DETECTION ELECTRODE

Next: !p1014, !f1015

VOLTAGE PRESSURE SENSOR OUTPUT FILLING - E40 FAULT CODE

Next: !p1070, !f1075

RESISTANCE THERMISTOR DHW

REMOVE LEADS TO DHW

Next: p1083, !f1084

RESISTANCE THERMISTOR FLOW

REMOVE LEADS TO FLOW

Next: p1085, !f1086

RESISTANCE THERMISTOR RETURN

REMOVE LEADS TO RETU

Next: !p1087, !f1088

RESISTANCE THERMISTOR RETURN

REMOVE LEADS TO RETU

Next: !p1097, !f1096

PUMP TEST

Next: p575, !f1173

INSPECTION ISOLATION VALVES FLOW AND RETURN

Next: p1206, !f1193

OBSERVATION PUMP RUNS

DHW TEMPERATURE SET TO MAX

Next: p1194, f1195

PUMP TEST

Next: p1200, !f1201

OBSERVATION FAN AND PUMP OVERRUN

Next: p1202, !f1203

CH OPERATION - FAULT CODE E03 OVERHEAT

CH TEMPERATURE SET TO MAX
ATTACH TEMPERATURE CLAMPS AS INDICATED TO FLOW AND RETURN PIPES

Next: p1337, ?1222, ?1224, ?1226

INSPECTION EXTERNAL BYPASS

Next: p1456, !f1220

DHW OPERATION - OVERHEAT

DHW TEMPERATURE SET

Next: !p1259, !f1262

RESISTANCE THERMISTOR FLOW

REMOVE LEADS TO FLOW

Next: p1253, !f1254

RESISTANCE THERMISTOR RETURN

REMOVE LEADS TO RETU

Next: !p1255, !f1256

REPLACE FUSE

AN INITIAL RESISTANC

Next: !p1324, !f1323

RESISTANCE DISCONNECT FAN

REMOVE ELECTRICAL CONNECTIONS TO FAN ASSEMBLY

Next: p1312, !f1313

RESISTANCE DISCONNECT DISPLAY PCB

REMOVE MAINS INPUT CONNECTOR X1 TO DISPLAY PCB

Next: p1314, !f1315

RESISTANCE DISCONNECT IGNITION PCB

REMOVE MAINS INPUT CONNECTOR IGNITION PCB

Next: p1316, f1317

RESISTANCE DISCONNECT DIVERTER VALVE MOTOR

REMOVE ELECTRICAL CONNECTION TO DIVERTER VALVE MOTOR ASSEMBLY

Next: !p1320, !f1321

RESISTANCE HARNESS FAN SPEED CONTROL

REMOVE IGNITION PCB

Next: !p1329, !f1330

RESISTANCE THERMISTOR FLOW

REMOVE LEADS TO FLOW

Next: p1333, !f1334

RESISTANCE THERMISTOR RETURN

REMOVE LEADS TO RETU

Next: !p1335, !f1336

DHW OPERATION - OVERHEAT

DHW TEMPERATURE SET

Next: !p1338, !f1339

INSPECTION BURNER

REMOVE THE BURNER

Next: p239, !f1357

INSPECTION ISOLATION VALVES FLOW AND RETURN

Next: p1373, !f1372

INSPECTION EXTERNAL BYPASS

Next: p424, !f1387

RESISTANCE THERMISTOR RETURN

REMOVE LEADS TO RETU

Next: !p1389, !f1390

RESISTANCE THERMISTOR DHW

REMOVE LEADS TO DHW

Next: p1396, !f1397

RESISTANCE THERMISTOR FLOW

REMOVE LEADS TO FLOW

Next: !p1398, !f1399

OBSERVATION DIVERTER VALVE DHW OPERATION

DHW TEMPERATURE SET TO MAX
DIVERTER POSITION IS OBSERVED FROM UNDERSIDE OF PUMP HOUSING

Next: !p932, f1421

RESISTANCE HARNESS DHW TURBINE

REMOVE IGNITION PCB

Next: !p1419, !f1420

PUMP TEST

Next: p1595, !f350

MEASURE CAPACITOR DIVERTER VALVE

REMOVE CAPACITOR FRO

Next: p1425, !f1426

VOLTAGE DIVERTER VALVE

GAIN ACCESS TO DIVER

Next: p1427, f1428

RESISTANCE HARNESS DIVERTER MOTOR

REMOVE IGNITION PCB

Next: !p1431, !f1432

MEASURE CAPACITOR DIVERTER VALVE

REMOVE CAPACITOR FRO

Next: p1437, !f1438

VOLTAGE DIVERTER VALVE

GAIN ACCESS TO DIVER

Next: p1439, f1440

RESISTANCE HARNESS DIVERTER MOTOR

REMOVE IGNITION PCB

Next: !p1443, !f1444

PUMP TEST

Next: p1575, !f360

INSPECTION HEAT EXCHANGER FLUE WAYS

REMOVE THE BURNER FROM BOILER (IF NOT ALREADY DONE)

Next: !p1452, !f1453

INSPECTION AUTO AIR VENTS

Next: p1192, !f1488

INSPECTION AUTO AIR VENTS

Next: p1167, !f1499

INSPECTION ISOLATION VALVES FLOW AND RETURN

Next: p442, !f443

INSPECTION AUTO AIR VENTS

Next: p1561, !f1515

TEMPERATURE FLOW AND DHW - FROST PROTECTION

ATTACH TEMPERATURE CLAMPS TO THE CH FLOW AND DHW OUTLET PIPES

Next: !p1519, f1613

MEASURE FLOW AND RETURN DIFFERENTIAL

CH TEMPERATURE SET T

Next: p422, ?429, ?431

VOLTAGE SWITCHED LIVE INPUT

Next: !p1550, !f1551

VOLTAGE SWITCHED LIVE INPUT

Next: !p1559, !f1560

CH OPERATION - DHW NOISY KETTLING

ENSURE WINTER MODE HAS BEEN SELECTED
CH TEMPERATURE SET TO MAX

Next: !p1562, ?1563, ?1565

PUMP TEST

Next: p1569, !f1570

VOLTAGE SWITCHED LIVE INPUT

Next: !p1567, !f1568

RESISTANCE THERMISTOR FLOW

REMOVE LEADS TO FLOW

Next: p1571, !f1572

RESISTANCE THERMISTOR RETURN

REMOVE LEADS TO RETU

Next: !p1573, !f1574

INSPECTION AUTO AIR VENTS

Next: p404, !f1594

INSPECTION AUTO AIR VENTS

Next: p349, !f1612

RESISTANCE THERMISTOR DHW

REMOVE LEADS TO DHW

Next: p1615, !f1616

RESISTANCE THERMISTOR FLOW

REMOVE LEADS TO FLOW

Next: !p1617, !f1618

RESISTANCE GAS VALVE

REMOVE IGNITION PCB FROM GAS VALVE AND MAKE SAFE

Next: !p194, !f195

PRESSURE GAS INLET

DHW TEMPERATURE SET TO MAX
ATTACH PRESSURE GAUGE TO THE INLET PRESSURE TEST POINT

Next: p233, !f234

INSPECTION CONDENSATE PIPE AND TRAP

Next: p235, f236

INSPECTION FLUE

Next: p1353, !f240

INSPECTION HEAT EXCHANGER FLUE WAYS

REMOVE THE BURNER FROM BOILER (IF NOT ALREADY DONE)

Next: !p1342, !f242

VOLTAGE SWITCHED LIVE INPUT

Next: !p1345, !f1346

MEASURE SECONDARY HEAT EXCHANGER DIFFERENTIAL

DHW TEMPERATURE SET

Next: p351, f1541

RESISTANCE THERMISTOR DHW

REMOVE LEADS TO DHW

Next: p353, !f354

RESISTANCE THERMISTOR FLOW

REMOVE LEADS TO FLOW

Next: p355, !f356

RESISTANCE THERMISTOR RETURN

REMOVE LEADS TO RETU

Next: !p357, !f358

RESISTANCE THERMISTOR DHW

REMOVE LEADS TO DHW

Next: p961, !f968

FAULT CODES

Next: !p38, !f39

VOLTAGE CONTROL PANEL MAINS INPUT

{GAINPCBACS}

Next: !p840, f42

MEASURE SECONDARY HEAT EXCHANGER DIFFERENTIAL

DHW TEMPERATURE SET

Next: p359, f1553

RESISTANCE THERMISTOR FLOW

REMOVE LEADS TO FLOW

Next: p416, !f417

RESISTANCE THERMISTOR RETURN

REMOVE LEADS TO RETU

Next: p418, !f441

RESISTANCE THERMISTOR FLUE

REMOVE LEADS TO FLUE THERMISTOR

Next: !p439, !f421

RESISTANCE THERMISTOR FLOW

REMOVE LEADS TO FLOW

Next: p435, !f461

PUMP TEST

Next: p152, !f428

RESISTANCE THERMISTOR RETURN

REMOVE LEADS TO RETU

Next: !p460, !f437

PUMP TEST

Next: p446, !f444

OBSERVATION DIVERTER VALVE CH OPERATION

DIVERTER POSITION IS OBSERVED FROM UNDERSIDE OF PUMP HOUSING

Next: p447, f1433

INSPECTION EXTERNAL BYPASS

Next: !p451, !f452

INSPECTION FILTER DHW

ISOLATE COLD WATER F

Next: p58, !f55

RESISTANCE THERMISTOR RETURN

REMOVE LEADS TO RETU

Next: !p567, !f568

MEASURE COMBUSTION TEMPERATURE VS RETURN TEMPERATURE

CH TEMPERATURE SET TO MAX (82°C)

Next: !p586, f1006

INSPECTION SENSOR FLOW DHW

ISOLATE COLD WATER FEED TO BOILER
DRAIN THE DHW SYSTEM
REMOVE DHW FLOW SENSOR

Next: !p818, !f62

VOLTAGE PRESSURE SENSOR OUTPUT FILLING

Next: !p604, !f605

RESISTANCE HARNESS IGNITION TO DISPLAY PCB

REMOVE IGNITION PCB

Next: !p612, !f613

RESISTANCE THERMISTOR FLOW HARNESS

REMOVE IGNITION PCB

Next: !p913, !f916

TEMPERATURE FLOW AND DHW - BOILER FIRES NO DEMAND

ATTACH TEMPERATURE CLAMPS TO THE CH FLOW AND DHW OUTLET PIPES

Next: !p1392, f1393

VOLTAGE FAN DC CONTROL - DHW DEMAND

REMOVE FAN SPEED CON

Next: !p686, f687

RESISTANCE THERMISTOR FLOW

REMOVE LEADS TO FLOW

Next: p690, !f691

RESISTANCE THERMISTOR RETURN

REMOVE LEADS TO RETU

Next: p1328, !f693

VOLTAGE FAN 23 VOLTS DC

REMOVE FAN SPEED CON

Next: p685, f1325

OBSERVATION SPARK OUTPUT

DHW TEMPERATURE SET

Next: p730, f731

PRESSURE GAS INLET

DHW TEMPERATURE SET TO MAX
ATTACH PRESSURE GAUGE TO THE INLET PRESSURE TEST POINT

Next: p734, !f735

MEASURE FAN PRESSURE

DHW TEMPERATURE SET

Next: p736, ?738, ?740, ?742

INSPECTION IGNITION ELECTRODE

REMOVE IGNITION/FLAME DETECTION ELECTRODE

Next: p756, !f757

INSPECTION CONDENSATE PIPE AND TRAP

Next: p748, f749

VOLTAGE PCB TO GAS VALVE

REMOVE IGNITION PCB

Next: !p764, !f763

INSPECTION FLUE

Next: p752, !f753

INSPECTION BURNER

REMOVE THE BURNER

Next: p1451, !f755

INSPECTION BURNER

REMOVE THE BURNER

Next: p843, !f759

OBSERVATION COLD WATER SUPPLY

Next: p52, !f815

INSPECTION SPARK ELECTRODE GAP

FIT SPARK ELECTRODE TO BURNER ASSEMBLY

Next: !p1343, !f845

PRESSURE GAS INLET

DHW TEMPERATURE SET TO MAX
ATTACH PRESSURE GAUGE TO THE INLET PRESSURE TEST POINT

Next: p869, !f870

OBSERVATION FLAME CURRENT

Next: !p871, f872

RESISTANCE LEAD IGNITION

REMOVE IGNITION LEAD FROM BOILER

Next: p877, !f878

INSPECTION IGNITION ELECTRODE

REMOVE IGNITION/FLAME DETECTION ELECTRODE

Next: p879, !f880

INSPECTION BURNER

REMOVE THE BURNER

Next: p881, !f882

INSPECTION SPARK ELECTRODE GAP

FIT SPARK ELECTRODE TO BURNER ASSEMBLY

Next: p883, !f884

INSPECTION HEAT EXCHANGER FLUE WAYS

REMOVE THE BURNER FROM BOILER (IF NOT ALREADY DONE)

Next: !p1344, !f886

INSPECTION FLUE

Next: p873, !f899

RESISTANCE THERMISTOR DHW

REMOVE LEADS TO DHW

Next: p949, !f945

RESISTANCE THERMISTOR FLOW

REMOVE LEADS TO FLOW

Next: p950, !f951

RESISTANCE THERMISTOR RETURN

REMOVE LEADS TO RETU

Next: p952, !f953

RESISTANCE HARNESS DHW TURBINE

REMOVE IGNITION PCB

Next: p957, !f955

RESISTANCE THERMISTOR DHW HARNESS

REMOVE IGNITION PCB

Next: !p959, !f958

RESISTANCE THERMISTOR FLOW

REMOVE LEADS TO FLOW

Next: p962, !f963

RESISTANCE THERMISTOR RETURN

REMOVE LEADS TO RETU

Next: p964, !f965

RESISTANCE THERMISTOR FLUE

REMOVE LEADS TO FLUE THERMISTOR

Next: !p966, !f967

RESISTANCE THERMISTOR DHW HARNESS

REMOVE IGNITION PCB

Next: !p971, !f972

RESISTANCE THERMISTOR RETURN HARNESS

REMOVE IGNITION PCB

Next: !p976, !f977

RESISTANCE THERMISTOR FLUE HARNESS

REMOVE IGNITION PCB

Next: !p981, !f982

OBSERVATION FLAME CURRENT - DEMAND REMOVED

Next: p987, f994

RESISTANCE LEAD IGNITION

REMOVE IGNITION LEAD FROM BOILER

Next: p991, !f992

INSPECTION IGNITION ELECTRODE

REMOVE IGNITION/FLAME DETECTION ELECTRODE

Next: !p997, !f998

INSPECTION IGNITION ELECTRODE

REMOVE IGNITION/FLAME DETECTION ELECTRODE

Next: !p999, !f1000

System Information

  • Total Tests: 489
  • Sequence Logic: Decoded from encrypted .seq file
  • Navigation: Dynamic based on pass/fail results
  • Source: 4731307 GW SWIFTFLOW 100 SIT Control