XSol Diagnostic System

BAXI PRECISION + ERP

GLOBALLY REPLACED

Next: &1, *

NO FAULT FOUND

Next: nff

CASE REMOVAL

Next: &1253, !f2

POWER UP SELF TEST

CH TEMPERATURE CONTROL SET TO OFF POSITION
ENSURE APPLIANCE IS COOL

Next: &513, ?7, ?9, ?12, ?1255

OBSERVATION FAN RUNS

ENSURE APPLIANCE IS COOL

Next: &269, ?443, ?445

CH OPERATION

CH TEMPERATURE CONTROL SET TO MAX

Next: &1108, ?538, ?540, ?542, ?729

DHW OPERATION

HOT WATER DEMAND

Next: &nff, ?609, ?611

OBSERVATION BURNER IGNITION & ESTABLISH

ENSURE APPLIANCE IS COOL

Next: &44, ?270, ?276, ?516

FAULT CODE - SENSORS

NOT USED

Next: &nff, f386

FAULT CODE - MISCELLANEOUS

NOT USED

Next: &nff, f506

FAULT CODE FAN FAULT

NOT USED

Next: &nff, f400

TYPE OF DIAGNOSTIC PROCEDURE

PLEASE SELECT FROM O

Next: &1116, !f514

STATUS CODE - TEMPERATURE PROTECTION

NOT USED

Next: &nff, f685

STATUS CODE - SHUTDOWN INPUT

NOT USED

Next: &nff, f657

STATUS CODE - COMMUNICATION FAULT

NOT USED

Next: &nff, f670

STATUS CODE - MISCELLANEOUS

NOT USED

Next: &nff, f675

& FUSE PCB FURTHER INVESTIGATION

NOT USED

Next: &nff, f797

FAULT CODE - OVERHEAT

NOT USED

Next: &nff, f869

OBSERVATION EXTERNAL FROST PROTECTION

ENSURE THERE ARE NO DEMANDS FOR HEATING OR HOT WATER

Next: &29, !f1103

OBSERVATION BOILER MODULATION

ATTACH TEMPERATURE CLAMP TO FLOW PIPE JUST ABOVE HEAT EXCHANGER

Next: &45, f1109

OBSERVATION SYSTEM PUMP RUNNING

CH TEMPERATURE CONTROL SET TO OFF POSITION
LOCATE & GAIN ACCESS TO SYSTEM PUMP

Next: &1102, f1117

FAULT CODE - PARAMETER FAULT

NOT USED

Next: &nff, f1234

PARAMETER UNIT REPLACEMENT

Next: &nff, !f1250

SET UP FOR NEW PARAMETER UNIT

IF A NEW PARAMETER U

Next: &nff, !f1252

INFORMATION RESETTING APPLIANCE

Next: &3, !f1254

BOILER NOISY

FLUE

Next: End

BOILER NOISY

COMBUSTION SEALS

Next: End

BOILER NOISY

BURNER MESH C/W GASKET

Next: End

BOILER NOISY

GAS VALVE ASSEMBLY

Next: End

BOILER NOISY

GAS VALVE ADJUSTMENT

Next: End

BURNER IGNITION 2

COMBUSTION CONTROL UNIT

Next: End

BURNER IGNITION

FLUE

Next: End

BURNER IGNITION

SET - ELECTRODES C/W SCREW & GASKET

Next: End

BURNER IGNITION 2

BURNER MESH C/W GASKET

Next: End

BOILER SYS COOL

KIT - SENSOR

Next: End

BOILER SYS COOL 2

KIT - SENSOR

Next: End

BOILER SYS COOL

CONTROLLER - USER INTERACTION

Next: End

BOILER SYS COOL

FLUE

Next: End

FROST PROTECTION

Next: End

MODULATION

KIT - SENSOR

Next: End

MODULATION 2

KIT - SENSOR

Next: End

MODULATION

CONTROLLER - USER INTERACTION

Next: End

BURNER DOES NOT IGNITE AND EST

COMBUSTION CONTROL UNIT

Next: End

BURNER DOES NOT IGNITE & EST

FLUE

Next: End

BURNER DOES NOT IGNITE & EST 2

SET - ELECTRODES C/W SCREW & GASKET

Next: End

BURNER DOES NOT IGNITE & EST

BURNER MESH C/W GASKET

Next: End

BURNER DOES NOT IGNITE & EST

AIR INTAKE

Next: End

PUMP DOES NOT RUN

Next: End

PUMP DOES NOT RUN 2

Next: End

PUMP DOES NOT RUN 3

Next: End

FAULT CODE PARAMETER

UNIT - PARAMETER

Next: End

FAULT CODE PARAMETER

HARNESS - CABLE 24V HE

Next: End

FAULT CODE PARAMETER 2

UNIT - PARAMETER

Next: End

BLANK FOR PARAMETER UNIT REPLACEMENT

Z REDIRECTION

Next: End

BLANK FOR PARAMETER UNIT SETUP

Z REDIRECTION

Next: End

INFORMATION RESETTING APPLIANCE

Z REDIRECTION

Next: End

CHIMNEY SWEEP ILLUMINATED SOLID

BUTTONS STUCK IN

Next: End

FAN RUNS

KIT - SENSOR

Next: End

FAN RUNS 2

KIT - SENSOR

Next: End

FAN RUNS 2

CONTROLLER - USER INTERACTION

Next: End

FUSE INVESTIGATION

FAN OR COMBUSTION CONTROL UNIT

Next: End

FAULT CODES

Z REDIRECTION

Next: End

POWER UP SELF TEST

Next: End

CASE OFF

DIRECTION CHOICE OR CONTINUE

Next: End

HARNESS DTP - MAINS

Next: End

POWER UP SELF TEST

COVER - CONTROL AND FUSE

Next: End

BURNER IGNITION

TRAP - C/W ELBOW - CONDENSATE

Next: End

BURNER IGNITION

GAS INLET PRESSURE

Next: End

NO BURNER IGNITION

COMBUSTION CONTROL UNIT

Next: End

AIR INTAKE

Next: End

BURNER IGNITION

COMBUSTION CONTROL UNIT

Next: End

BOILER NOISY

GAS INLET PRESSURE

Next: End

BOILER NOISY

TRAP - C/W ELBOW - CONDENSATE

Next: End

BOILER NOISEY

AIR INTAKE

Next: End

FAULT CODE SENSORS

COMBUSTION CONTROL UNIT

Next: End

FAULT CODE 2

KIT - SENSOR

Next: End

FAULT CODE

KIT - SENSOR

Next: End

STATUS CODE

Z REDIRECTION

Next: End

FAULT CODE FAN

FAULT CODE RESET

Next: End

FAN DOES NOT RUN 3

FAN

Next: End

FAN FAULT CODE 4

FAN

Next: End

FAULT CODE MISCELLANEOUS

UNIT - PARAMETER

Next: End

DIAGNOSTIC PROCEDURE

DIRECTION CHOICE OR CONTINUE

Next: End

BURNER IGNITION

KIT - SENSOR

Next: End

BURNER IGNITION

SWITCH - PRESSURE C/W O-RING

Next: End

BURNER IGNITION

FAULT CODE RESET - OVERHEAT - FLUE STAT

Next: End

BOILER UPTO TEMP RADS COOL 3

Next: End

BOILER SYS COOL

UNIT - PARAMETER

Next: End

BOILER SYS COOL

GAS INLET PRESSURE

Next: End

FAULT CODE OVERHEAT

Next: End

FAULT CODE MISC

FAULT/STATUS CODE MISCELLANEOUS

Next: End

STATUS CODE SHUTDWN 2

CONTROLLER - USER INTERACTION

Next: End

STAUS CODE COMMS

FAULT/STATUS CODE MISCELLANEOUS

Next: End

STATUS CODE MISC

COMBUSTION CONTROL UNIT

Next: End

BURNER IGNITION 2

SWITCH - PRESSURE C/W O-RING

Next: End

STATUS CODE TEMP

Next: End

STATUS CODE TEMP 2

PUMP

Next: End

STATUS CODE TEMP 5

KIT - SENSOR

Next: End

STATUS CODE TEMP 3

KIT - SENSOR

Next: End

STATUS CODE TEMP

KIT - SENSOR

Next: End

STATUS CODE TEMP 2

KIT - SENSOR

Next: End

STATUS CODE TEMP 2

Next: End

STATUS CODE TEMP 4

KIT - SENSOR

Next: End

STATUS CODE TEMP 6

KIT - SENSOR

Next: End

STATUS CODE TEMP 3

Next: End

PWR UP SELF TEST

COMBUSTION CONTROL UNIT

Next: End

LIMPET TEST

PUMP

Next: End

BOILER UPTO TEMP RADS COOL

Next: End

FAULT CODE OVERHEAT 2

PUMP

Next: End

FAULT CODE OVERHEAT

KIT - SENSOR

Next: End

FAULT CODE OVERHEAT

SWITCH - PRESSURE C/W O-RING

Next: End

FAULT CODE OVERHEAT 4

KIT - SENSOR

Next: End

FAULT CODE OVERHEAT 3

KIT - SENSOR

Next: End

FAULT CODE OVERHEAT 2

KIT - SENSOR

Next: End

FAULT CODE OVERHEAT

FLUE

Next: End

FAULT CODE OVERHEAT 2

SWITCH - PRESSURE C/W O-RING

Next: End

STATUS CODE TEMP 4

PUMP

Next: End

STATUS CODE TEMP 7

KIT - SENSOR

Next: End

STATUS CODE TEMP 11

KIT - SENSOR

Next: End

STATUS CODE TEMP 8

KIT - SENSOR

Next: End

STATUS CODE TEMP 10

KIT - SENSOR

Next: End

STATUS CODE TEMP 4

Next: End

STATUS CODE TEMP 9

KIT - SENSOR

Next: End

STATUS CODE TEMP 12

KIT - SENSOR

Next: End

FAULT CODE OVERHEAT 2

Next: End

FAULT CODE OVERHEAT

PUMP

Next: End

FAULT CODE OVERHEAT 8

KIT - SENSOR

Next: End

FAULT CODE OVERHEAT 4

SWITCH - PRESSURE C/W O-RING

Next: End

FAULT CODE OVERHEAT 7

KIT - SENSOR

Next: End

FAULT CODE OVERHEAT 6

KIT - SENSOR

Next: End

FAULT CODE OVERHEAT 5

KIT - SENSOR

Next: End

FAULT CODE OVERHEAT 2

FLUE

Next: End

FAULT CODE OVERHEAT 3

SWITCH - PRESSURE C/W O-RING

Next: End

BOILER NOISY 2

GAS VALVE ASSEMBLY

Next: End

BOILER NOISY

HEAT ENGINE FLUEWAYS

Next: End

BOILER NOISY

FAN

Next: End

GAS VALVE ADJUSTMENT

Z REDIRECTION

Next: End

BOILER NOISY

INTERFACE - FLUE C/W SEAL

Next: End

BOILER NOISY

INTERFACE SUMP

Next: End

BURNER IGNITION

INTERFACE - FLUE C/W SEAL

Next: End

BURNER IGNITION

INTERFACE SUMP

Next: End

BURNER IGNITION

HEAT ENGINE FLUEWAYS

Next: End

BURNER IGNITION 2

FAN

Next: End

BURNER IGNITION 2

GAS VALVE ASSEMBLY

Next: End

BOILER SYS COOL

COMBUSTION CONTROL UNIT

Next: End

BOILER SYS COOL

INTERFACE - FLUE C/W SEAL

Next: End

BOILER SYS COOL

INTERFACE SUMP

Next: End

BOILER SYS COOL 2

COMBUSTION CONTROL UNIT

Next: End

BOILER SYS COOL

HEAT ENGINE FLUEWAYS

Next: End

BOILER SYS COOL

FAN

Next: End

MODULATION

COMBUSTION CONTROL UNIT

Next: End

PUMP DOES NOT RUN

PUMP

Next: End

BURNER DOES NOT IGNITE & EST 2

COMBUSTION CONTROL UNIT

Next: End

BURNER DOES NOT IGNITE & EST

SET - ELECTRODES C/W SCREW & GASKET

Next: End

BURNER DOES NOT IGNITE & EST

INTERFACE - FLUE C/W SEAL

Next: End

BURNER DOES NOT IGNITE & EST

INTERFACE SUMP

Next: End

BURNER DOES NOT IGNITE & EST

HEAT ENGINE FLUEWAYS

Next: End

BURNER DOES NOT IGNITE & EST

FAN

Next: End

BURNER DOES NOT IGNITE & EST

GAS VALVE ASSEMBLY

Next: End

PARAMETER FAULT

FAULT CODE RESET

Next: End

FAN DOES NOT RUN

FAN ELECTRICAL CONNECTIONS

Next: End

FAN FAULT CODE

FAN ELECTRICAL CONNECTIONS

Next: End

CHIMNEY ILLUMINATED SOLID

CONTROLLER - USER INTERACTION

Next: End

FAN DOES NOT RUN

FAN OR COMBUSTION CONTROL UNIT

Next: End

FAN RUNS

COMBUSTION CONTROL UNIT

Next: End

FAN FAULT CODE

FAN OR COMBUSTION CONTROL UNIT

Next: End

FAN FAULT CODE 2

COMBUSTION CONTROL UNIT

Next: End

FUSE INVESTIGATION

COMBUSTION CONTROL UNIT FUSE INVESTIGATION

Next: End

FAULT CODES

DIRECTION CHOICE OR CONTINUE

Next: End

FUSE FURTHER INVESTIGATION

Z REDIRECTION

Next: End

PWR UP SELF TEST

CONTROLLER - USER INTERACTION

Next: End

BURNER IGNITION 3

GAS VALVE ASSEMBLY

Next: End

FAULT CODE SENSOR

FAULT CODE RESET

Next: End

FAULT CODE

HARNESS - CABLE 24V HE

Next: End

FAULT CODE 2

HARNESS - CABLE 24V HE

Next: End

STATUS CODE

DIRECTION CHOICE OR CONTINUE

Next: End

FAN ROTATION

FAN

Next: End

FAN FAULT CODE 2

FAN

Next: End

FAN FAULT CODE 4

COMBUSTION CONTROL UNIT

Next: End

FAN FAULT CODE 3

COMBUSTION CONTROL UNIT

Next: End

FAN FAULT CODE

COMBUSTION CONTROL UNIT

Next: End

FAULT CODE MISCELLANEOUS

FAULT CODE RESET

Next: End

FAULT CODE MISCELLANEOUS

COMBUSTION CONTROL UNIT

Next: End

BURNER IGNITION

HARNESS - CABLE 24V HE

Next: End

DHW OPERATION

Next: End

DHW OPERATION

Next: End

STATUS CODE SHUT DWN

FAULT CODE RESET

Next: End

STATUS CODE SHUTDWN

CONTROLLER - USER INTERACTION

Next: End

STATUS CODE SHUTDWN

BL TERMINALS - LINK

Next: End

STATUS CODE SHUTDWN

Next: End

STATUS CODE COMS

FAULT CODE RESET

Next: End

STATUS CODE COMMS

COMBUSTION CONTROL UNIT

Next: End

STATUS CODE MISC

FAULT CODE RESET

Next: End

BURNER IGNITION 2

FLUE

Next: End

STATUS CODE TEMP 2

COMBUSTION CONTROL UNIT

Next: End

STATUS CODE TEMP

COMBUSTION CONTROL UNIT

Next: End

STATUS CODE TEMP

STATUS CODE RESET - TEMP PROTECTION

Next: End

STATUS CODE TEMP 3

COMBUSTION CONTROL UNIT

Next: End

BOILER UPTO TEMP RADS COOL

Next: End

FAULT CODE OVERHEAT

COMBUSTION CONTROL UNIT

Next: End

FAULT CODE OVERHEAT

HARNESS - CABLE 24V HE

Next: End

FAULT CODE OVERHEAT

FAULT CODE RESET - OVERHEAT - FLUE STAT

Next: End

FAULT CODE OVERHEAT 3

COMBUSTION CONTROL UNIT

Next: End

FAULT CODE OVERHEAT 2

COMBUSTION CONTROL UNIT

Next: End

STATUS CODE TEMP 4

COMBUSTION CONTROL UNIT

Next: End

STATUS CODE TEMP 2

STATUS CODE RESET - TEMP PROTECTION

Next: End

STATUS CODE TEMP 6

COMBUSTION CONTROL UNIT

Next: End

STATUS CODE TEMP 5

COMBUSTION CONTROL UNIT

Next: End

STATUS CODE TEMP

PUMP

Next: End

FAULT CODE OVERHEAT 6

COMBUSTION CONTROL UNIT

Next: End

FAULT CODE OVERHEAT 2

HARNESS - CABLE 24V HE

Next: End

FAULT CODE OVERHEAT 2

FAULT CODE RESET - OVERHEAT - FLUE STAT

Next: End

FAULT CODE OVERHEAT 5

COMBUSTION CONTROL UNIT

Next: End

FAULT CODE OVERHEAT 4

COMBUSTION CONTROL UNIT

Next: End

FAULT CODE OVERHEAT 3

PUMP

Next: End

HEAT EXCHANGER FLUEWAYS RESTRICTED AND/OR BLOCKED

CHARACTERISTIC TEST FROM INSPECTION HEAT EXCHANGER FLUEWAYS

Next: !p1010

FAN BEARING PLATE FAILURE

CHARACTERISTIC TEST FROM INSPECTION HEAT EXCHANGER FLUEWAYS

Next: !p1012

FLUE INTERFACE RESTRICTED AND/OR BLOCKED

Next: !p1020

SUMP RESTRICTED AND/OR BLOCKED

Next: !p1022

FLUE INTERFACE RESTRICTED AND/OR BLOCKED

Next: !p1050

SUMP RESTRICTED AND/OR BLOCKED

Next: !p1052

HEAT EXCHANGER FLUEWAYS RESTRICTED AND/OR BLOCKED

CHARACTERISTIC TEST FROM INSPECTION HEAT EXCHANGER FLUEWAYS

Next: !p1060

FAN BEARING PLATE FAILURE

CHARACTERISTIC TEST FROM INSPECTION HEAT EXCHANGER FLUEWAYS

Next: !p1062

FLUE INTERFACE RESTRICTED AND/OR BLOCKED

Next: !p1079

SUMP RESTRICTED AND/OR BLOCKED

Next: !p1081

HEAT EXCHANGER FLUEWAYS RESTRICTED AND/OR BLOCKED

CHARACTERISTIC TEST FROM INSPECTION HEAT EXCHANGER FLUEWAYS

Next: !p1086

FAN BEARING PLATE FAILURE

CHARACTERISTIC TEST FROM INSPECTION HEAT EXCHANGER FLUEWAYS

Next: !p1088

FAULT CODE (CHIMNEY SWEEP LED FLASHING RED)

CHARACTERISTIC TEST FROM POWER UP SELF TEST

Next: p13

FLUE INTERFACE RESTRICTED AND/OR BLOCKED

Next: !p1216

SUMP RESTRICTED AND/OR BLOCKED

Next: !p1218

HEAT EXCHANGER FLUEWAYS RESTRICTED AND/OR BLOCKED

CHARACTERISTIC TEST FROM INSPECTION HEAT EXCHANGER FLUEWAYS

Next: !p1224

FAN BEARING PLATE FAILURE

CHARACTERISTIC TEST FROM INSPECTION HEAT EXCHANGER FLUEWAYS

Next: !p1226

ELECTRICAL CONNECTION - FAN MOTOR TO PCB POOR

CHARACTERISTIC TEST FROM OBSERVATION FAN ROTATION & RESISTANCE

Next: !p1245

ELECTRICAL CONNECTION - FAN MOTOR TO PCB POOR

CHARACTERISTIC TEST FROM OBSERVATION FAN ROTATION & RESISTANCE

Next: !p1247

CHIMNEY SWEEP LED ILLUMINATED (SOLID RED OR GREEN)

CHARACTERISTIC TEST FROM POWER UP SELF TEST

Next: p1257

BURNER DOES NOT IGNITE & ESTABLISH

CHARACTERISTIC TEST FROM OBSERVATION BURNER IGNITION & ESTABLISH

Next: p271

BURNER IGNITES BUT IS BAFFLING AND/OR NOISY

CHARACTERISTIC TEST FROM OBSERVATION BURNER IGNITION & ESTABLISH

Next: p277

FAN PULSES

CHARACTERISTIC TEST FROM OBSERVATION FAN RUNS

Next: p484

FAN DOES NOT RUN

CHARACTERISTIC TEST FROM OBSERVATION FAN RUNS

Next: p447

FAN SEIZED AND/OR ROTATION RESTRICTED

CHARACTERISTIC TEST FROM OBSERVATION FAN ROTATION & RESISTANCE

Next: !p450

FAN RESISTANCE NOT AS EXPECTED

CHARACTERISTIC TEST FROM OBSERVATION FAN ROTATION & RESISTANCE

Next: !p1261

FAN DOES NOT RUN

CHARACTERISTIC TEST FROM OBSERVATION FAN RUNS

Next: p467

FAN SEIZED AND/OR RESTRICTED

CHARACTERISTIC TEST FROM OBSERVATION FAN ROTATION & RESISTANCE

Next: !p470

FAN RESISTANCE NOT AS EXPECTED

CHARACTERISTIC TEST FROM OBSERVATION FAN ROTATION & RESISTANCE

Next: !p1271

FAN RUNS

CHARACTERISTIC TEST FROM OBSERVATION FAN RUNS - FAULT CODE

Next: p478

FAULT CODE 2 FLASHES RED OCCURS

CHARACTERISTIC TEST FROM OBSERVATION BURNER IGNITION & ESTABLISH

Next: p517

BOILER AND RADIATORS DO NOT REACH TEMPERATURE

CHARACTERISTIC TEST FROM CH OPERATION

Next: p561

BOILER UP TO TEMPERATURE, RADIATORS DO NOT HEAT SUFFICIENTLY

CHARACTERISTIC TEST FROM CH OPERATION

Next: p550

BOILER SHUTS DOWN OVERHEAT FAULT - 2 FLASHES RED OCCURS

CHARACTERISTIC TEST FROM CH OPERATION

Next: p543

DHW OPERATION UNSATISFACTORY

CHARACTERISTIC TEST FROM DHW OPERATION

Next: !p610

DHW DEMAND NOT RECOGNISED

CHARACTERISTIC TEST FROM DHW OPERATION

Next: !p612

NO CONNECTIONS - BL TERMINALS

CHARACTERISTIC TEST FROM INSPECTION BL TERMINALS - USER INTERFACE

Next: !p665

EXTERNAL CONNECTIONS - BL TERMINALS

CHARACTERISTIC TEST FROM INSPECTION BL TERMINALS - USER INTERFACE

Next: p667

CONTROL PANEL LEDS DO NOT ILLUMINATE

CHARACTERISTIC TEST FROM POWER UP SELF TEST

Next: p8

BOILER GOES TO TEMPERATURE PROTECTION - FLOW TEMPERATURE BELOW 80°C

CHARACTERISTIC TEST FROM TEMPERATURE PROTECTION - RUN BOILER TO MAXIMUM

Next: p722

BOILER FLOW TEMPERATURE EXCEEDS 85°C AND STILL FIRED

CHARACTERISTIC TEST FROM TEMPERATURE PROTECTION - RUN BOILER TO MAXIMUM

Next: p705

BOILER SHUTS DOWN TEMP PROTECTION - 1 FLASH GREEN OCCURS EVERY 3 SECONDS

CHARACTERISTIC TEST FROM CH OPERATION

Next: p762

BOILER GOES TO OVERHEAT - FLOW TEMPERATURE BELOW 80°C

CHARACTERISTIC TEST FROM TEMPERATURE - RUN BOILER TO MAXIMUM

Next: p826

BOILER FLOW TEMPERATURE EXCEEDS 85°C AND STILL FIRED

CHARACTERISTIC TEST FROM TEMPERATURE PROTECTION - RUN BOILER TO MAXIMUM

Next: p828

BOILER GOES TO TEMPERATURE PROTECTION - FLOW TEMPERATURE BELOW 80°C

CHARACTERISTIC TEST FROM TEMPERATURE PROTECTION - RUN BOILER TO MAXIMUM

Next: p851

BOILER FLOW TEMPERATURE EXCEEDS 85°C AND STILL FIRED

CHARACTERISTIC TEST FROM TEMPERATURE PROTECTION - RUN BOILER TO MAXIMUM

Next: p853

STATUS CODE (CHIMNEY SWEEP LED FLASHING GREEN)

CHARACTERISTIC TEST FROM POWER UP SELF TEST

Next: p10

BOILER GOES TO OVERHEAT - FLOW TEMPERATURE BELOW 80°C

CHARACTERISTIC TEST FROM TEMPERATURE - RUN BOILER TO MAXIMUM

Next: p913

BOILER FLOW TEMPERATURE EXCEEDS 85°C AND STILL FIRED

CHARACTERISTIC TEST FROM TEMPERATURE PROTECTION - RUN BOILER TO MAXIMUM

Next: p915

09/09/2021 13:21:16 2109_1_50_1 10/11/2021 15:57:42

11/10/2021 12:24:41

Next: End

INSPECTION COMBUSTION CIRCUIT SEALS

Next: p1005, !f1006

RESISTANCE THERMISTOR FLOW

REMOVE THE AIR INTAKE AND FLUE MANIFOLDS
REMOVE FLOW THERMISTOR ELECTRICAL CONNECTOR

Next: p1110, !f1111

VOLTAGE PUMP AT PUMP

GAIN ACCESS TO PUMPS ELECTRICAL CONNECTIONS

Next: !p1118, !f1230

VOLTAGE RECTIFICATION AT PCB

{GAINPCBACS}
CH TEMPERATURE CONTROL SET TO OFF POSITION

Next: p1162, f1163

DISCONNECT SPARK ELECTRODE AT SPARK GENERATOR

DISCONNECT SPARK ELECTRODE LEAD FROM SPARK GENERATOR

Next: !p1166, !f1167

INSPECTION AIR INTAKE MANIFOLD

REMOVE THE AIR INTAKE MANIFOLD

Next: p1210, !f1229

INSPECTION PARAMETER UNIT

Next: p1236, !f1237

FUSE FURTHER INVESTIGATION

THE INFORMATION PROV

Next: !p23, !f24

VOLTAGE GAS VALVE

Next: !p286, !f287

RESISTANCE THERMISTOR FLOW AND HARNESS

REMOVE CONNECTOR X5 FROM THE PCB

Next: p393, f388

RESISTANCE THERMISTOR FLOW

REMOVE THE AIR INTAKE AND FLUE MANIFOLDS
REMOVE FLOW THERMISTOR ELECTRICAL CONNECTOR

Next: !p391, !f392

RESISTANCE THERMISTOR RETURN

REMOVE THE AIR INTAKE AND FLUE MANIFOLDS
REMOVE RETURN THERMISTOR ELECTRICAL CONNECTOR

Next: !p398, !f399

OBSERVATION FAN RUNS - FAULT CODE

Next: p492, ?465, ?477

RESET APPLIANCE - FAULT/STATUS CODE DISPLAYED

CH TEMPERATURE CONTROL SET TO OFF

Next: !p507, f508

INSPECTION PARAMETER UNIT

Next: p509, !f510

RESISTANCE STAT OVERHEAT

GAIN ACCESS TO OVERHEAT STAT & DISCONNECT LEADS TO STAT

Next: p520, !f521

PRESSURE GAS INLET

ATTACH PRESSURE GAUGE TO GAS PRESSURE INLET TEST POINT LOCATED UNDERNEATH THE BOILER

Next: p1089, !f567

RESET APPLIANCE - STATUS CODE DISPLAYED

CH TEMPERATURE CONTROL SET TO OFF

Next: !p660, f659

INSPECTION BL TERMINALS - USER INTERFACE

GAIN ACCESS TO THE USER CONTROL INTERFACE PCB, (USE INSULATION MAT AS REQUIRED)

Next: !p663, ?664, ?666

RESET APPLIANCE - FAULT/STATUS CODE DISPLAYED

CH TEMPERATURE CONTROL SET TO OFF

Next: !p671, f672

INSPECTION WIRING HARNESS CONNECTIONS

{GAINPCBACS}

Next: !p673, !f674

RESET APPLIANCE - STATUS CODE DISPLAYED

CH TEMPERATURE CONTROL SET TO OFF

Next: !p676, !f678

OBSERVATION SYSTEM WATER

GAIN ACCESS TO SYSTEM AS REQUIRED

Next: p686, !f687

RESISTANCE THERMISTOR FLOW

REMOVE THE AIR INTAKE AND FLUE MANIFOLDS
REMOVE FLOW THERMISTOR ELECTRICAL CONNECTOR

Next: p717, !f718

RESISTANCE FAN ASSEMBLY

{GAINPCBACS}
REMOVE FAN DRIVER PCB FROM THE FAN ASSEMBLY

Next: !p1275, !f1274

RESISTANCE SAFETY CIRCUIT AND HARNESS

REMOVE CONNECTOR X5 FROM THE PCB

Next: !p817, f818

RESISTANCE STAT OVERHEAT

GAIN ACCESS TO OVERHEAT STAT & DISCONNECT LEADS TO STAT

Next: p819, !f820

RESISTANCE THERMISTOR FLOW

REMOVE THE AIR INTAKE AND FLUE MANIFOLDS
REMOVE FLOW THERMISTOR ELECTRICAL CONNECTOR

Next: p844, !f845

VOLTAGE PUMP AT PUMP

GAIN ACCESS TO PUMPS ELECTRICAL CONNECTIONS

Next: !p866, !f1231

OBSERVATION SYSTEM WATER

GAIN ACCESS TO SYSTEM AS REQUIRED

Next: p898, !f871

RESISTANCE SAFETY CIRCUIT AND HARNESS

REMOVE CONNECTOR X5 FROM THE PCB

Next: !p904, f905

RESISTANCE STAT OVERHEAT

GAIN ACCESS TO OVERHEAT STAT & DISCONNECT LEADS TO STAT

Next: p906, !f907

VOLTAGE PUMP AT PUMP

GAIN ACCESS TO PUMPS ELECTRICAL CONNECTIONS

Next: !p927, !f1232

STATUS CODES

Next: !p42, !f43

INSPECTION FLUE

Next: p1001, !f1002

COMBUSTION PERFORMANCE CHECK

CONNECT FGA TO THE COMBUSTION TEST POINT ON THE BOILER

Next: !p1003, f1004

INSPECTION HEAT EXCHANGER FLUEWAYS

REMOVE THE COMBUSTION CONTROL UNIT AND GAIN
ACCESS TO THE HEAT EXCHANGER FLUEWAYS

Next: p1007, ?1009, ?1011

INSPECTION BURNER

Next: p1013, !f1014

ADJUSTMENT GAS VALVE

CONNECT FGA TO THE COMBUSTION TEST POINT ON THE BOILER

Next: p1015, !f1016

GAS VALVE ADJUSTED CORRECTLY

THE COMBUSTION READI

Next: !p1017, !f1018

OBSERVATION SPARK GENERATOR

{GAINPCBACS}
REMOVE SPARK IGNITION LEAD FROM THE SPARK GENERATOR AND MAKE SAFE

Next: p1045, !f1044

INSPECTION FLUE

Next: p1047, !f1046

INSPECTION INTERFACE AND SUMP

Next: p1054, ?1049, ?1051

INSPECTION ELECTRODE IGNITION

REMOVE SPARK ELECTRODE ASSEMBLY FROM THE BOILER

Next: p1055, !f1056

INSPECTION HEAT EXCHANGER FLUEWAYS

REMOVE THE COMBUSTION CONTROL UNIT AND GAIN
ACCESS TO THE HEAT EXCHANGER FLUEWAYS

Next: p1057, ?1059, ?1061

INSPECTION BURNER

Next: !p1063, !f1064

RESISTANCE THERMISTOR FLOW

REMOVE THE AIR INTAKE AND FLUE MANIFOLDS
REMOVE FLOW THERMISTOR ELECTRICAL CONNECTOR

Next: p1066, !f1067

RESISTANCE THERMISTOR RETURN

REMOVE THE AIR INTAKE AND FLUE MANIFOLDS
REMOVE RETURN THERMISTOR ELECTRICAL CONNECTOR

Next: p1068, !f1069

RESISTANCE POTENTIOMETER - CH TEMPERATURE

DISCONNECT USER INTE

Next: !p1070, !f1071

INSPECTION INTERFACE AND SUMP

Next: p1083, ?1078, ?1080

INSPECTION HEAT EXCHANGER FLUEWAYS

REMOVE THE COMBUSTION CONTROL UNIT AND GAIN
ACCESS TO THE HEAT EXCHANGER FLUEWAYS

Next: !p1084, ?1085, ?1087

INSPECTION FLUE

Next: p1076, !f1101

RESISTANCE THERMISTOR RETURN

REMOVE THE AIR INTAKE AND FLUE MANIFOLDS
REMOVE RETURN THERMISTOR ELECTRICAL CONNECTOR

Next: p1112, !f1113

RESISTANCE POTENTIOMETER - CH TEMPERATURE

DISCONNECT USER INTE

Next: !p1114, !f1115

OBSERVATION BURNER HEARD TO IGNITE

Next: p282, f1155

VOLTAGE RECTIFICATION AT PCB - IGNITION

{GAINPCBACS}

Next: !p1164, f1209

INSPECTION FLUE

Next: p1211, !f1212

INSPECTION INTERFACE AND SUMP

Next: p1213, ?1215, ?1217

INSPECTION ELECTRODE IGNITION

REMOVE SPARK ELECTRODE ASSEMBLY FROM THE BOILER

Next: p1219, !f1220

INSPECTION HEAT EXCHANGER FLUEWAYS

REMOVE THE COMBUSTION CONTROL UNIT AND GAIN
ACCESS TO THE HEAT EXCHANGER FLUEWAYS

Next: p1221, ?1223, ?1225

INSPECTION BURNER

Next: !p1227, !f1228

RESISTANCE HARNESS PARAMETER UNIT

REMOVE CONNECTOR X5 FROM THE PCB
DISCONNECT ELECTRICAL CONNECTOR TO PARAMETER UNIT

Next: p1238, !f1239

RESET APPLIANCE - FAULT/STATUS CODE DISPLAYED

CH TEMPERATURE CONTROL SET TO OFF

Next: !p1240, !f1241

INSPECTION BUTTON STUCK IN

Next: !p1258, !f1259

RESISTANCE THERMISTOR FLOW

REMOVE THE AIR INTAKE AND FLUE MANIFOLDS
REMOVE FLOW THERMISTOR ELECTRICAL CONNECTOR

Next: p1264, !f1265

RESISTANCE THERMISTOR RETURN

REMOVE THE AIR INTAKE AND FLUE MANIFOLDS
REMOVE RETURN THERMISTOR ELECTRICAL CONNECTOR

Next: p1266, !f1267

RESISTANCE POTENTIOMETER - CH TEMPERATURE

DISCONNECT USER INTE

Next: !p1268, !f1269

FAULT CODES

Next: !p16, !f15

VOLTAGE MAINS AT PCB

{GAINPCBACS}

Next: p19, !f20

RESISTANCE FUSE PCB

REMOVE FUSE FROM THE PCB

Next: p21, f22

OBSERVATION BOILER RESPONDS

Next: !p25, !f795

INSPECTION CONDENSATE

Next: p280, !f281

PRESSURE GAS INLET

ATTACH PRESSURE GAUGE TO GAS PRESSURE INLET TEST POINT LOCATED UNDERNEATH THE BOILER

Next: p340, !f341

PRESSURE GAS INLET

ATTACH PRESSURE GAUGE TO GAS PRESSURE INLET TEST POINT LOCATED UNDERNEATH THE BOILER

Next: p1120, !f283

RESISTANCE GAS VALVE

REMOVE ELECTRICAL CONNECTOR FROM THE GAS VALVE

Next: p284, f285

VOLTAGE GAS VALVE

Next: p288, !f308

INSPECTION AIR INTAKE MANIFOLD

REMOVE THE AIR INTAKE MANIFOLD

Next: p1043, !f291

INSPECTION CONDENSATE

Next: p342, !f343

INSPECTION AIR INTAKE MANIFOLD

REMOVE THE AIR INTAKE MANIFOLD

Next: p929, !f345

RESET APPLIANCE - FAULT CODE

CH TEMPERATURE CONTROL SET TO OFF

Next: !p389, !f390

RESISTANCE THERMISTOR RETURN AND HARNESS

REMOVE CONNECTOR X5 FROM THE PCB

Next: p387, f397

OBSERVATION FAN ROTATION & RESISTANCE

{GAINPCBACS}
REMOVE FAN DRIVER PCB FROM THE FAN ASSEMBLY

Next: p1263, ?449, ?451, ?1244

OBSERVATION FAN ROTATION & RESISTANCE

{GAINPCBACS}
REMOVE FAN DRIVER PCB FROM THE FAN ASSEMBLY

Next: !p1273, ?469, ?471, ?1246

OBSERVATION FAN FAULT CODE OCCURS

Next: !p481, !f482

OBSERVATION FAN ROTATION & RESISTANCE - FAN PULSES

{GAINPCBACS}
REMOVE FAN DRIVER PCB FROM THE FAN ASSEMBLY

Next: !p485, !f491

OBSERVATION FAN ROTATION & RESISTANCE - FAN PULSES

{GAINPCBACS}
REMOVE FAN DRIVER PCB FROM THE FAN ASSEMBLY

Next: !p498, !f496

INSPECTION WIRING HARNESS CONNECTIONS

{GAINPCBACS}

Next: !p511, !f650

RESISTANCE SAFETY CIRCUIT AND HARNESS

REMOVE CONNECTOR X5 FROM THE PCB

Next: p518, f519

RESET APPLIANCE - FAULT CODE DISPLAYED AT IGNITION

Next: p681, !f526

RESISTANCE SWITCH AIR PRESSURE

GAIN ACCESS TO AIR PRESSURE SWITCH AND DISCONNECT LEADS

Next: !p522, !f523

OBSERVATION SYSTEM WATER

GAIN ACCESS TO SYSTEM AS REQUIRED

Next: p812, !f614

OBSERVATION SYSTEM WATER

GAIN ACCESS TO SYSTEM AS REQUIRED

Next: p807, !f552

OBSERVATION BOILER KW OUTPUT

Next: p562, !f563

GAS RATE

Next: p1065, f565

DISCONNECT EXTERNAL BL CONNECTIONS

REMOVE EXTERNAL CONN

Next: !p668, !f669

OPERATION AIR PRESSURE SWITCH

REMOVE AIR PRESSURE SWITCH AND DISCONNECT LEADS

Next: !p682, !f683

OBSERVATION SYSTEM PUMP RUNNING

CH TEMPERATURE CONTROL SET TO OFF POSITION
LOCATE & GAIN ACCESS TO SYSTEM PUMP

Next: p688, f865

PUMP LIMPET TEST

Next: p690, !f691

RESET APPLIANCE - STATUS CODE - TEMPERATURE PROTECTION

ENSURE BOILER IS COOL

Next: p692, f716

TEMPERATURE PROTECTION - RUN BOILER TO MAXIMUM

ATTACH TEMPERATURE CLAMP TO FLOW PIPE

Next: !p721, ?702, ?704

RESISTANCE THERMISTOR FLOW

REMOVE THE AIR INTAKE AND FLUE MANIFOLDS
REMOVE FLOW THERMISTOR ELECTRICAL CONNECTOR

Next: p706, !f707

RESISTANCE THERMISTOR RETURN

REMOVE THE AIR INTAKE AND FLUE MANIFOLDS
REMOVE RETURN THERMISTOR ELECTRICAL CONNECTOR

Next: !p708, !f709

RESISTANCE THERMISTOR RETURN

REMOVE THE AIR INTAKE AND FLUE MANIFOLDS
REMOVE RETURN THERMISTOR ELECTRICAL CONNECTOR

Next: !p719, !f720

TEMPERATURE FLOW & RETURN DIFFERENTIAL

ENSURE BOILER IS COOL
ATTACH TEMPERATURE CLAMPS TO FLOW & RETURN PIPE

Next: p723, !f724

RESISTANCE THERMISTOR FLOW

REMOVE THE AIR INTAKE AND FLUE MANIFOLDS
REMOVE FLOW THERMISTOR ELECTRICAL CONNECTOR

Next: p725, !f726

RESISTANCE THERMISTOR RETURN

REMOVE THE AIR INTAKE AND FLUE MANIFOLDS
REMOVE RETURN THERMISTOR ELECTRICAL CONNECTOR

Next: !p727, !f728

OBSERVATION SYSTEM WATER

GAIN ACCESS TO SYSTEM AS REQUIRED

Next: p839, !f764

VOLTAGE EXTERNAL CONTROLS

ATTACH A SOCKET & SEE TO THE ELECTRICAL TEST POINT

Next: p17, !f18

PUMP LIMPET TEST

Next: p808, !f809

INSPECTION SYSTEM BYPASS

Next: !p810, !f811

PUMP LIMPET TEST

Next: p813, !f814

RESET APPLIANCE - FAULT CODE - OVERHEAT

ENSURE BOILER IS COOL

Next: p815, f816

TEMPERATURE - RUN BOILER TO MAXIMUM

ATTACH TEMPERATURE CLAMP TO FLOW PIPE JUST ABOVE HEAT EXCHANGER

Next: !p823, ?825, ?827

RESISTANCE SWITCH AIR PRESSURE

GAIN ACCESS TO AIR PRESSURE SWITCH AND DISCONNECT LEADS

Next: !p821, !f822

RESISTANCE STAT OVERHEAT

GAIN ACCESS TO OVERHEAT STAT & DISCONNECT LEADS TO STAT

Next: p833, !f834

RESISTANCE THERMISTOR FLOW

REMOVE THE AIR INTAKE AND FLUE MANIFOLDS
REMOVE FLOW THERMISTOR ELECTRICAL CONNECTOR

Next: p829, !f830

RESISTANCE THERMISTOR RETURN

REMOVE THE AIR INTAKE AND FLUE MANIFOLDS
REMOVE RETURN THERMISTOR ELECTRICAL CONNECTOR

Next: !p831, !f832

INSPECTION FLUE

Next: p835, !f836

OPERATION AIR PRESSURE SWITCH

REMOVE AIR PRESSURE SWITCH AND DISCONNECT LEADS

Next: !p837, !f838

PUMP LIMPET TEST

Next: p840, !f841

RESET APPLIANCE - STATUS CODE - TEMPERATURE PROTECTION

ENSURE BOILER IS COOL

Next: p842, f843

TEMPERATURE PROTECTION - RUN BOILER TO MAXIMUM

ATTACH TEMPERATURE CLAMP TO FLOW PIPE

Next: !p848, ?850, ?852

RESISTANCE THERMISTOR RETURN

REMOVE THE AIR INTAKE AND FLUE MANIFOLDS
REMOVE RETURN THERMISTOR ELECTRICAL CONNECTOR

Next: !p846, !f847

TEMPERATURE FLOW & RETURN DIFFERENTIAL

ENSURE BOILER IS COOL
ATTACH TEMPERATURE CLAMPS TO FLOW & RETURN PIPE

Next: p858, !f859

RESISTANCE THERMISTOR FLOW

REMOVE THE AIR INTAKE AND FLUE MANIFOLDS
REMOVE FLOW THERMISTOR ELECTRICAL CONNECTOR

Next: p854, !f855

RESISTANCE THERMISTOR RETURN

REMOVE THE AIR INTAKE AND FLUE MANIFOLDS
REMOVE RETURN THERMISTOR ELECTRICAL CONNECTOR

Next: !p856, !f857

RESISTANCE THERMISTOR FLOW

REMOVE THE AIR INTAKE AND FLUE MANIFOLDS
REMOVE FLOW THERMISTOR ELECTRICAL CONNECTOR

Next: p860, !f861

RESISTANCE THERMISTOR RETURN

REMOVE THE AIR INTAKE AND FLUE MANIFOLDS
REMOVE RETURN THERMISTOR ELECTRICAL CONNECTOR

Next: !p862, !f863

OBSERVATION SYSTEM PUMP RUNNING

CH TEMPERATURE CONTROL SET TO OFF POSITION
LOCATE & GAIN ACCESS TO SYSTEM PUMP

Next: p899, f926

PUMP LIMPET TEST

Next: p900, !f901

RESET APPLIANCE - FAULT CODE - OVERHEAT

ENSURE BOILER IS COOL

Next: p902, f903

TEMPERATURE - RUN BOILER TO MAXIMUM

ATTACH TEMPERATURE CLAMP TO FLOW PIPE JUST ABOVE HEAT EXCHANGER

Next: !p910, ?912, ?914

RESISTANCE SWITCH AIR PRESSURE

GAIN ACCESS TO AIR PRESSURE SWITCH AND DISCONNECT LEADS

Next: !p908, !f909

RESISTANCE STAT OVERHEAT

GAIN ACCESS TO OVERHEAT STAT & DISCONNECT LEADS TO STAT

Next: p920, !f921

RESISTANCE THERMISTOR FLOW

REMOVE THE AIR INTAKE AND FLUE MANIFOLDS
REMOVE FLOW THERMISTOR ELECTRICAL CONNECTOR

Next: p916, !f917

RESISTANCE THERMISTOR RETURN

REMOVE THE AIR INTAKE AND FLUE MANIFOLDS
REMOVE RETURN THERMISTOR ELECTRICAL CONNECTOR

Next: !p918, !f919

INSPECTION FLUE

Next: p922, !f923

OPERATION AIR PRESSURE SWITCH

REMOVE AIR PRESSURE SWITCH AND DISCONNECT LEADS

Next: !p924, !f925

INSPECTION INTERFACE AND SUMP

Next: p1000, ?1019, ?1021

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