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:

4726754 FERROLI DOMICONDENS HE26C

GLOBALLY REPLACED

Next: &1, *

NO FAULT FOUND

Next: nff

4726754 FERROLI DOMICONDENS HE26C

STEP 1:
RE

Next: &2, !f46

OBSERVATION DISPLAY OPERATION

Next: &3, ?12, ?14

OBSERVATION SELF CHECK AND STANDBY

ENSURE NO DEMANDS
ENSURE APPLIANCE IS COOL
ECO MODE ON (ECO IN DISPLAY)

Next: &717, ?499, ?521

OBSERVATION DHW DEMAND RECOGNISED

ECO MODE ON (ECO ON DISPLAY)

Next: &6, f102

OBSERVATION FAN RUNS WITH DHW DEMAND

Next: &7, f3165

OBSERVATION BURNER IGNITION AND ESTABLISH

ECO MODE ON (ECO IN DISPLAY)

Next: &2784, ?66, ?68, ?70, ?220

OPERATION DHW

DHW SET TO MAXIMUM TEMPERATURE (50°C)

Next: &444, ?72, ?74, ?76, ?78

OPERATION CH

CH TEMPERATURE SET TO MAX

Next: &10, ?83, ?85, ?2869

OBSERVATION PUMP OVERRUN

Next: &3127, !f2452

OBSERVATION CH DEMAND RECOGNISED

BOILER CH THERMOSTAT

Next: &2863, f311

OBSERVATION DHW MODULATION

ATTACH FGA / U-GAUGE

Next: &82, f2854

F05 - FAN FAULT

OUTSIDE MODEL

Next: &nff, f471

TYPE OF DIAGNOSTIC PROCEDURE

PLEASE SELECT FROM O

Next: &2054, !f718

FLOW / STAT THERMISTOR INVESTIGATION F10 AND F14

Next: &nff, f732

PCB

Next: &nff, !f783

POWER SUPPLY VOLTAGE F34

INTENTIONALLY BLANK HEADER FOR F34

Next: &nff, f785

POWER SUPPLY FREQUENCY F35

INTENTIONALLY BLANK HEADER FOR F35

Next: &nff, f2987

FLAME DETECTED AFTER BURNER SHUTDOWN A02

INTENTIONALLY BLANK HEADER FOR A02 FAULT CODE

Next: &nff, f791

A09 AND F50 - GAS VALVE FAULT

OUTSIDE MODEL

Next: &nff, f809

OUTSIDE TEMPERATURE ERROR F39

INTENTIONALLY BLANK HEADER FOR F39 FAULT CODE

Next: &nff, f815

WIRING OR WATER INGRESS F20

Next: &nff, !f839

BURNER SHUTDOWN A06

INTENTIONALLY BLANK HEADER FOR A06

Next: &nff, f1729

FUSE INVESTIGATION

INTENTIONALLY BLANK HEADER FOR FUSE INVESTIGATION

Next: &nff, f850

OVERHEAT INVESTIGATION

INTENTIONALLY BLANK HEADER FOR OVERHEAT INVESTIGATION

Next: &nff, f1770

F04 - FLUE OVERHEAT INVESTIGATION

Next: &nff, f3051

FAULT CODE HISTORY

1. PRESS AND

Next: &nff, !f1232

FAULT CODES FOR FAULT CODE HISTORY

Next: &nff, !f1249

HEADER FOR IGNITION FAULT FROM FAULT CODES HISTORY

INTENTIONALLY BLANK HEADER FOR FAULT CODES FROM FAULT CODE HISTORY

Next: &nff, f1279

PRESSURE SENSOR INVESTIGATION PRESSURE TOO LOW

INTENTIONALLY BLANK HEADER FOR PRESSURE TOO LOW

Next: &nff, f1638

DHW FLOW RATE

Next: &5, f2055

F42 INVESTIGATION

INTENTIONALLY BLANK HEADER FOR F42

Next: &nff, f2206

INSTALLER MODE FOR TEMPERATURE

Next: &nff, !f2451

F11 - DHW SENSOR FAULT

OUTSIDE MODEL

Next: &nff, f2501

PRESSURE GAS MAX AND MIN

ATTACH FGA / U-GAUGE TO BURNER PRESSURE TEST POINT

Next: &8, f2789

OBSERVATION PUMP RUNS CH DEMAND

Next: &9, f2864

A41 - SENSOR POSITIONING

OUTSIDE MODEL

Next: &nff, f2899

F07, A23, A24 - CARD PARAMETER FAULT

OUTSIDE MODEL

Next: &nff, f3118

OPERATION PRE HEAT

ENSURE BOILER IS COO

Next: &nff, !f3128

READING HOT WHEN COLD

THERMOSTAT - COMBINED

Next: End

READING HOT WHEN COLD

SENSOR - DHW

Next: End

BLANK FOR FAULT CODE HISTORY

Z DIRECTION CHOICE OR CONTINUE

Next: End

BLANK FOR FAULT CODES FAULT CODE HISTORY

Z DIRECTION CHOICE OR CONTINUE

Next: End

VOLTAGE TO GAS VALVE AFTER DEMAND

PCB

Next: End

FAULT CODE

SYSTEM PRESSURE LOW

Next: End

A06 FAULT CODE

TRAP CONDENSATE - OR PIPE

Next: End

BLOCKED NOT SHOWING PRESSURE

GAUGE - PRESSURE - PUSH FIT

Next: End

NOT FITTED CORRECTLY

SENSOR FITMENT

Next: End

OVERHEAT

SENSOR - DHW

Next: End

OVERHEAT

THERMOSTAT - COMBINED

Next: End

CAUSING OVERHEAT

PUMP ASSEMBLY

Next: End

FULLY OR PARTIALLY CLOSED - OVERHEAT

ISOLATION VALVES FLOW AND RETURN

Next: End

BLOCKED NOT SHOWING FOR FAULT CODE

GAUGE - PRESSURE - PUSH FIT

Next: End

DHW ISOLATION VALVE

LOOP - FILLING - COCK/VALVE

Next: End

INSUFFICIENT

WATER SUPPLY

Next: End

FAULT CODE F42

THERMOSTAT - COMBINED

Next: End

FULLY OR PARTIALLY CLOSED - OVERHEAT F42

ISOLATION VALVES FLOW AND RETURN

Next: End

BLOCKED NOT SHOWING PRESSURE F42

GAUGE - PRESSURE - PUSH FIT

Next: End

NOT FITTED CORRECTLY F42

SENSOR FITMENT

Next: End

OVERHEAT F42

SENSOR - DHW

Next: End

CAUSING OVERHEAT F42

PUMP ASSEMBLY

Next: End

TIMER SECTION

LOOM - WIRING

Next: End

BLANK FOR INSTALLER MODE

Z DIRECTION CHOICE OR CONTINUE

Next: End

INCORRECT OVERRUNS MAIN MODEL

PCB PUMP OVER RUN

Next: End

PRESSURE SWITCH FAULT CODE LOW PRESSURE

LOOM - WIRING

Next: End

NOT READING PRESSURE CORRECTLY FAULT CODELOW PRESSURE

PRESSURE SWITCH - LOW WATER

Next: End

FAULT CODE F12

SENSOR - DHW

Next: End

RESISTANCE HIGH OR POOR CONDITION 2

LEAD - IGNITION

Next: End

LOW CAUSING BAFFLING

GAS INLET PRESSURE

Next: End

BLOWN THROUGH FATIGUE

FUSE MAINS

Next: End

BLANK FOR FUSE FH1

Z DIRECTION CHOICE OR CONTINUE

Next: End

NOT RECOGNISING DEMAND

SWITCH - FLOW

Next: End

TURBINE

LOOM - WIRING

Next: End

DHW FLOW RATE

HEAT EXCHANGER - SECONDARY (CONDENSING)

Next: End

POOR SUPPLY

GAS INLET PRESSURE

Next: End

FAN RUNS

PCB

Next: End

NEW MODELBLOCKED OR DAMAGED

BURNER - COMPLETE

Next: End

GAP DAMAGE

ELECTRODE

Next: End

NOT LIGHTING

LEAD - IGNITION

Next: End

BAFFLES

HEAT EXCHANGER - MAIN

Next: End

NOT RECTIFYING

LEAD - IGNITION

Next: End

NOT RECTIFYING

ELECTRODE

Next: End

CAUSING BAFFLING - SEALS OR BLOCKED

FLUE

Next: End

DAMAGED CAUSING BAFFLING

BURNER - COMPLETE

Next: End

PARTIALLY RESTRICTED CAUSING WRONG MIX

INJECTOR - NG

Next: End

BAFFLES - STIFF

FAN ASSEMBLY

Next: End

BAFFLES

HEAT EXCHANGER - SECONDARY (CONDENSING)

Next: End

CAUSING POOR FLUE GAS READINGS 2

FLUE

Next: End

DAMAGED CAUSING FLUE GAS FAIL 2

BURNER - COMPLETE

Next: End

RESTRICTED OR BLOCKED IGNITION PROBLEMS

HEAT EXCHANGER - MAIN

Next: End

PARTIALLY RESTRICTED CAUSING POOR FLUE GAS READINGS 2

INJECTOR - NG

Next: End

PRESSURE GAS MAX AND MIN

GAS INLET PRESSURE

Next: End

PRESSURE GAS MAX AND MIN

PCB

Next: End

PRESSURE GAS MAX AND MIN

GAS VALVE ADJUSTMENT

Next: End

OPERATION DHW

EXTERNAL MIXING

Next: End

OPERATION DHW - TOO COOL

BURNER - COMPLETE

Next: End

OPERATION DHW - TOO COOL

INJECTOR - NG

Next: End

NOT MODULATING DHW

SENSOR - DHW

Next: End

DHW TOO HOT

SENSOR - DHW

Next: End

OBSERVATION PUMP RUNS CH DEMAND

LOOM - WIRING

Next: End

FLAT

VESSEL - EXPANSION 8LTR

Next: End

WEAK SPARK FOR FAULT HISTORY

PCB

Next: End

HIGH RESISTANCE INTERMITTENT

GAS VALVE

Next: End

IGNITION PROBLEMS

LEAD - IGNITION

Next: End

IGNITION PROBLEMS

ELECTRODE

Next: End

IGNITION PROBLEMS 3

TRAP CONDENSATE - OR PIPE

Next: End

IGNITION PROBLEMS 3

FLUE

Next: End

IGNITION PROBLEMS 3

BURNER - COMPLETE

Next: End

RESTRICTED OR BLOCKED IGNITION PROBLEMS 3

HEAT EXCHANGER - MAIN

Next: End

IGNITION PROBLEMS 3

INJECTOR - NG

Next: End

A41

SENSOR FITMENT

Next: End

A41

SENSOR - DHW

Next: End

A41

THERMOSTAT - COMBINED

Next: End

F05

PARAMETERS

Next: End

BAFFLES

TRAP CONDENSATE - OR PIPE

Next: End

A06 FAULT CODE

FLUE

Next: End

A06 FAULT CODE

BURNER - COMPLETE

Next: End

A06 FAULT CODE

HEAT EXCHANGER - MAIN

Next: End

A06 FAULT CODE

INJECTOR - NG

Next: End

PRESSURE GAS MAX AND MIN IGNITION FAULT HISTORY

GAS INLET PRESSURE

Next: End

PRESSURE GAS MAX AND MIN IGNITION FAULT HISTORY

PCB

Next: End

PRESSURE GAS MAX AND MIN IGNITION FAULT HISTORY

GAS VALVE ADJUSTMENT

Next: End

F35

PARAMETERS

Next: End

OVERHEAT INVESTIGATION

HEAT EXCHANGER - MAIN

Next: End

SHUT CAUSING OVERHEAT

Next: End

OVERHEAT INVESTIGATION

ISOLATION VALVES FLOW AND RETURN

Next: End

OVERHEATING AFTER DEMAND

PCB PUMP OVER RUN

Next: End

F42 OVERHEAT INVESTIGATION

HEAT EXCHANGER - MAIN

Next: End

F42 OVERHEAT INVESTIGATION

ISOLATION VALVES FLOW AND RETURN

Next: End

F42 SHUT CAUSING OVERHEAT

Next: End

F42 OVERHEATING AFTER DEMAND

PCB PUMP OVER RUN

Next: End

PUMP OVERHEAT

LOOM - WIRING

Next: End

PUMP F42

LOOM - WIRING

Next: End

SPARKING OCCURS BURNER DOES NOT LIGHT - RESISTANCE

GAS VALVE

Next: End

NO SPARKING NO IGNITION

GAS VALVE

Next: End

AC SECTION SHORTING

FAN ASSEMBLY

Next: End

BLOCKED NOT SHOWING PRESSURE FLUE OVERHEAT

GAUGE - PRESSURE - PUSH FIT

Next: End

NOT FITTED CORRECTLY FLUE OVERHEAT

SENSOR FITMENT

Next: End

OVERHEAT FLUE OVERHEAT

SENSOR - DHW

Next: End

OVERHEAT FLUE OVERHEAT

THERMOSTAT - COMBINED

Next: End

CAUSING OVERHEAT FLUE OVERHEAT

PUMP ASSEMBLY

Next: End

F04 - OPEN CIRCUIT

KIT - THERMOSTAT 100 DEG - SECURITY

Next: End

PUMP OVERHEAT FLUE

LOOM - WIRING

Next: End

FLUE OVERHEAT

FLUE

Next: End

DAMAGED FLUEWAYS CAUSING FLUE OVERHEAT

HEAT EXCHANGER - MAIN

Next: End

F07

PARAMETERS

Next: End

F07 - ABM01A

PARAMETERS

Next: End

PRE HEAT NOT OPERATING

PCB

Next: End

PRESSURE GAS MAX AND MIN OVERHEAT

GAS INLET PRESSURE

Next: End

PRESSURE GAS MAX AND MIN OVERHEAT

PCB

Next: End

PRESSURE GAS MAX AND MIN OVERHEAT

GAS VALVE ADJUSTMENT

Next: End

OPERATION CH - COOL

THERMOSTAT - COMBINED

Next: End

PRESSURE GAS MAX AND MIN FLUE OVERHEAT

GAS INLET PRESSURE

Next: End

PRESSURE GAS MAX AND MIN FLUE OVERHEAT

PCB

Next: End

PRESSURE GAS MAX AND MIN FLUE OVERHEAT

GAS VALVE ADJUSTMENT

Next: End

PREVENTING DEMAND

SENSOR - DHW

Next: End

EXTERNAL CONTROLS

Next: End

PREVENTING DEMAND

THERMOSTAT - COMBINED

Next: End

OBSERVATION FAN RUNS

LOOM - WIRING

Next: End

IGNITES BUT BAFFLES - LOW VOLTAGE TO FAN

PCB

Next: End

A06

GAS INLET PRESSURE

Next: End

A06

PCB

Next: End

A06

GAS VALVE ADJUSTMENT

Next: End

NOT ESTABLISHING

INJECTOR - NG

Next: End

NOT ESTABLISHING

BURNER - COMPLETE

Next: End

REGISTERING DEMAND WHEN NONE PRESENT

SWITCH - FLOW

Next: End

NOT RECTIFYING

TRAP CONDENSATE - OR PIPE

Next: End

LOW CAUSING NO RECTIFICATION

GAS INLET PRESSURE

Next: End

EXTERNAL CONTROLS 2

Next: End

OPEN TOO MUCH

Next: End

SLOW OR WEAK 3

PUMP ASSEMBLY

Next: End

FULLY OR PARTIALLY CLOSED

ISOLATION VALVES FLOW AND RETURN

Next: End

BLANK FOR CASE OFF

Z DIRECTION CHOICE OR CONTINUE

Next: End

BLANK FOR FAULT CODES 2

Z DIRECTION CHOICE OR CONTINUE

Next: End

FROST PROTECTION

Next: End

CORRECTLY ACTIVATED APPLIANCE COLD

FROST PROTECTION

Next: End

READING COLD WHEN NOT

THERMOSTAT - COMBINED

Next: End

BLANK FOR TYPE OF DIAGNOSTIC PROCEDURE

Z DIRECTION CHOICE OR CONTINUE

Next: End

FAULT CODE

THERMOSTAT - COMBINED

Next: End

NOT FOR UK MARKET

PCB

Next: End

POLARITY PROBLEM

Next: End

RESISTANCE INCORRECT

GAS VALVE

Next: End

F39 FAULT CODE

OUTDOOR SENSOR

Next: End

BLANK FOR WIRING OR WATER INGRESS

Z DIRECTION CHOICE OR CONTINUE

Next: End

SHORTING

PUMP ASSEMBLY

Next: End

DISPLAY JUMBLED

PCB

Next: End

PASSING CAUSING A02

GAS VALVE

Next: End

STATING A06 INCORRECTLY

PCB

Next: End

POOR DHW FLOW

FILTER - DHW

Next: End

POOR DHW FLOW

RESTRICTOR - 10 LITRE

Next: End

RESTRICTED BLOCKED OR JAMMED

SWITCH - FLOW

Next: End

FLOW THERMISTOR FAULT CODE F42

LOOM - WIRING

Next: End

NOT SWITCHING

PROGRAMMER (INTEGRAL TIMER)

Next: End

OPEN OR PASSING ALLOWING FLOW

HOT WATER OUTLETS

Next: End

F37 FAULT CODE

PCB

Next: End

F12 FAULT

PCB

Next: End

DHW THERMISTOR FAULT CODE

LOOM - WIRING

Next: End

NOT RUNNING OVERHEAT

PUMP ASSEMBLY

Next: End

NOT RUNNING F42

PUMP ASSEMBLY

Next: End

NO MAINS POWER

Next: End

BLANK FOR MAINS FUSE INVESTIGATION

Z DIRECTION CHOICE OR CONTINUE

Next: End

NO DISPLAY

PCB

Next: End

BLOWN THROUGH FATIGUE

FUSE (PCB)

Next: End

IGNORING DHW DEMAND

PCB

Next: End

DHW FLOW RATE

HEAT EXCHANGER - MAIN

Next: End

SPARKING OCCURS BURNER DOES NOT LIGHT

GAS VALVE

Next: End

BOCKED OR DAMAGED SPARKING OCCURS BURNER DOESNOT IGNITE

INJECTOR - NG

Next: End

BAFFLES - SLOW

FAN ASSEMBLY

Next: End

PRESSURE GAS MAX AND MIN

GAS VALVE

Next: End

PRESSURE GAS MAX AND MIN

Z DIRECTION CHOICE OR CONTINUE

Next: End

NOT OPERATING DIVERTER FOR DHW

PCB

Next: End

OPERATION DHW

HEAT EXCHANGER - MAIN (KETTLING)

Next: End

OPERATION DHW - TOO COOL

HEAT EXCHANGER - MAIN

Next: End

NOT MODULATING DHW

PCB

Next: End

NOT CONTROLLING DHW TEMPERATURE

PCB

Next: End

OBSERVATION PUMP RUNS CH DEMAND

PUMP ASSEMBLY

Next: End

OBSERVATION PUMP RUNS CH DEMAND

PCB

Next: End

EXPANSION VESSEL PIPE

EXPANSION VESSEL PIPE

Next: End

NOT REGISTERING HALL SENSOR SIGNAL FROM FAN

PCB

Next: End

NOT RUNNING WITH AC VOLTAGE

FAN ASSEMBLY

Next: End

F05 - FAN

LOOM - WIRING

Next: End

INTERMITTENT IGNITION FAULT IGNITION PROBLEMS 3

PCB

Next: End

A41

PCB

Next: End

F05 - NO VOLTAGE TO FAN

PCB

Next: End

A06 FAULT CODE

GAS VALVE

Next: End

RESTRICTED OR BLOCKED NO CIRCULATION

Next: End

PRESSURE GAS MAX AND MIN IGNITION FAULT HISTORY

GAS VALVE

Next: End

PRESSURE GAS MAX AND MIN IGNITION FAULT HISTORY

Z DIRECTION CHOICE OR CONTINUE

Next: End

REGISTERING FREQUENCY FAULT CODE

PCB

Next: End

OVERHEAT INVESTIGATION

SYSTEM RESTRICTION OR BLOCKAGE

Next: End

OVERHEAT INVESTIGATION

NO FAULT - OVERHEAT INVESTIGATION

Next: End

F42 OVERHEAT INVESTIGATION

SYSTEM RESTRICTION OR BLOCKAGE

Next: End

F42 OVERHEAT INVESTIGATION

NO FAULT - OVERHEAT INVESTIGATION

Next: End

NO POWER TO PUMP OVERHEAT

PCB

Next: End

F42 NO POWER TO PUMP

PCB

Next: End

NO SPARK

PCB

Next: End

SPARKING OCCURS BURNER DOES NOT LIGHT - GAS VALVE

LOOM - WIRING

Next: End

NO SPARKING NO IGNITION - GAS VALVE

LOOM - WIRING

Next: End

PCB TAKING OUT FUSES

NO FAULT FUSE INVESTIGATION

Next: End

FAN AC SECTION SHORTING

LOOM - WIRING

Next: End

F04 - STUCK IN FAULT

PCB

Next: End

F04 - FUME STAT

LOOM - WIRING

Next: End

NOT RUNNING OVERHEAT FLUE

PUMP ASSEMBLY

Next: End

NO POWER TO PUMP OVERHEAT FLUE

PCB

Next: End

OVERHEAT 2

NO FAULT - FLUE OVERHEAT INVESTIGATION

Next: End

F04 - TRIPPING EARLY

KIT - THERMOSTAT 100 DEG - SECURITY

Next: End

F04

HEAT EXCHANGER - SECONDARY (CONDENSING)

Next: End

F07

PCB

Next: End

F7 - ABM01A

PCB

Next: End

PRESSURE GAS MAX AND MIN OVERHEAT

GAS VALVE

Next: End

PRESSURE GAS MAX AND MIN OVERHEAT

Z DIRECTION CHOICE OR CONTINUE

Next: End

MODULATING INCORRECTLY OR NOT RAMPING UP

PCB

Next: End

INTERMITTENT IGNITION

HEAT EXCHANGER - SECONDARY (CONDENSING)

Next: End

NO DEMAND TO BOILER

Next: End

PRESSURE GAS MAX AND MIN FLUE OVERHEAT

GAS VALVE

Next: End

PRESSURE GAS MAX AND MIN FLUE OVERHEAT

Z DIRECTION CHOICE OR CONTINUE

Next: End

NOT RECOGNISING CH DEMAND

PCB

Next: End

OBSERVATION FAN RUNS

FAN ASSEMBLY

Next: End

NOT RUNNING FAN WITH DEMAND

PCB

Next: End

NO DEMAND TO BOILER 2

Next: End

A06

GAS VALVE

Next: End

A06

Z DIRECTION CHOICE OR CONTINUE

Next: End

NO SPARKING

ELECTRODE (NO SPARKING)

Next: End

NOT RECTIFYING

PCB

Next: End

INCORRECTLY SENSING DHW DEMAND

PCB

Next: End

CONDENSATE LEAD - NOT RECITFYING

LOOM - WIRING

Next: End

DOES NOT ESTABLISH

GAS VALVE (NOT ESTABLISHING)

Next: End

NOT RECOGNISING CH DEMAND 2

PCB

Next: End

BLANK FOR FAULT CODES

Z DIRECTION CHOICE OR CONTINUE

Next: End

FIRING HEATING INCORRECTLY

PCB

Next: End

INCORRECTLY SHOWING FLOW / STAT THERIMISTOR FAULT

PCB

Next: End

FLOW THERMISTOR FAULT CODE

LOOM - WIRING

Next: End

STATING INCORRECT POLARITY WHEN OK

PCB

Next: End

A02 SENSING FLAME WHEN NOT PRESENT

PCB

Next: End

INCORRECTLY FAULTING A62

PCB

Next: End

GAS VALVE SECTION A62

LOOM - WIRING

Next: End

OUTSIDE SENSOR FAULT F39

PCB

Next: End

PUMP SECTION SHORTING

LOOM - WIRING

Next: End

DISPLAY DOES NOT OPERATE

CHARACTERISTIC TEST FROM OBSERVATION DISPLAY OPERATION

Next: p2627

DISPLAY OPERATES BUT IS JUMBLED OR DISTORTED

CHARACTERISTIC TEST FROM OBSERVATION DISPLAY OPERATION

Next: !p15

FILTER RESTRICTED OR BLOCKED

CHARACTERISTIC TEST FROM INSPECTION FLOW SWITCH, FILTER AND RESTRICTOR

Next: !p2075

FLOW LIMITER RESTRICTED OR BLOCKED

CHARACTERISTIC TEST FROM INSPECTION FLOW SWITCH, FILTER AND RESTRICTOR

Next: !p2077

FLOW TURBINE ASSEMBLY RESTRICTED BLOCKED OR JAMMED

CHARACTERISTIC TEST FROM INSPECTION FLOW SWITCH, FILTER AND RESTRICTOR

Next: !p2079

NO SPARKING OBSERVED

CHARACTERISTIC TEST FROM OBSERVATION BURNER IGNITION AND ESTABLISH

Next: p221

EXCESSIVE SYSTEM PRESSURE RISE

CHARACTERISTIC TEST FROM OPERATION CH

Next: p2871

TEMPERATURE OK BUT F04 REOCCURS

CHARACTERISTIC TEST FROM TEMPERATURE EXHAUST GASES

Next: !p3108

TEMPERATURE EXCESSIVE

CHARACTERISTIC TEST FROM TEMPERATURE EXHAUST GASES

Next: p3111

FAULT CODE SHOWN

CHARACTERISTIC TEST FROM OBSERVATION SELF CHECK AND STANDBY

Next: p500

PUMP RUNS AND / OR BOILER TRIES TO FIRE AFTER SELF CHECK

CHARACTERISTIC TEST FROM OBSERVATION SELF CHECK AND STANDBY

Next: p522

SPARKING OCCURS BUT BURNER DOES NOT IGNITE

CHARACTERISTIC TEST FROM OBSERVATION BURNER IGNITION AND ESTABLISH

Next: p2662

BURNER IGNITES BUT THEN BAFFLES OR DROPS OUT

CHARACTERISTIC TEST FROM OBSERVATION BURNER IGNITION AND ESTABLISH

Next: p254

BURNER IGNITES SMOOTHLY BUT FAILS TO ESTABLISH (SPARKING CONTINUES)

CHARACTERISTIC TEST FROM OBSERVATION BURNER IGNITION AND ESTABLISH

Next: p2698

DHW TOO HOT

CHARACTERISTIC TEST FROM OPERATION DHW

Next: p2860

DHW TOO COOL, RADS REMAIN COOL

CHARACTERISTIC TEST FROM OPERATION DHW

Next: p2804

DHW TOO COOL, PUMP RUNS AND RADIATORS HEAT

CHARACTERISTIC TEST FROM OPERATION DHW

Next: !p2802

BOILER NOISY (KETTLES) DURING OPERATION

CHARACTERISTIC TEST FROM OPERATION DHW

Next: !p2803

BOILER UP TO TEMPERATURE BUT RADS COLD

CHARACTERISTIC TEST FROM OPERATION CH

Next: p84

BOILER AND SYSTEM TEMPERATURE LOW

CHARACTERISTIC TEST FROM OPERATION CH

Next: p3151

10/02/2020 08:59:11 2001_2_50_1 12/03/2020 13:36:03

10/02/2020 10:46:46

Next: End

RESISTANCE DHW FLOW SWITCH

DISCONNECT LEADS AT DHW FLOW SWITCH

Next: p2642, !f2646

PRESSURE GAS MAX AND MIN - FOR FAULT HISTORY

ATTACH FGA / U-GAUGE TO BURNER PRESSURE TEST POINT

Next: p1417, f2973

VOLTAGE GAS VALVE BURNER SHUT DOWN

ECO MODE ON
APPLI

Next: !p1611, !f1612

OBSERVATION SYSTEM PRESSURE

Next: p1966, !f1647

OBSERVATION BURNER REMAINS ALIGHT

Next: !p1731, f1732

PRESSURE GAS MAX AND MIN

ATTACH FGA / U-GAUGE TO BURNER PRESSURE TEST POINT

Next: p1733, f3201

INSPECTION VALVES FLOW AND RETURN

Next: p1771, !f1810

WATER SUPPLY TO PREMISES

TURN ON A COLD WATER TAP

Next: p2056, !f2080

RESISTANCE THERMISTOR FLOW / STAT AND HARNESS

{GAINPCBACS}
REMOVE CONNECTOR X3 FROM THE PCB

Next: p2211, f2208

RESISTANCE THERMISTOR FLOW / STAT

REMOVE THE CONNECTOR FROM THE FLOW THERMISTOR

Next: !p2209, !f2210

OBSERVATION ISOLATE DHW DOES DEMAND STOP

ISOLATE THE DHW SUPPLY TO THE APPLIANCE ON THE
ISOLATING VALVE UNDERNEATH THE APPLIANCE

Next: !p2374, f2377

RESISTANCE DHW FLOW SWITCH (NO DEMAND)

DISCONNECT LEADS AT DHW FLOW SWITCH
ENSURE NO DHW DEMAND

Next: !p3216, !f3217

RESISTANCE THERMISTOR AND HARNESS DHW

{GAINPCBACS}
REMOVE CONNECTOR X3 FROM THE PCB

Next: !p2502, f2503

RESISTANCE THERMISTOR DHW

REMOVE WIRES FROM THE DHW SENSOR

Next: !p2504, !f2505

VOLTAGE PUMP AT PUMP

Next: !p2609, f3026

VOLTAGE PUMP AT PUMP

Next: !p2614, f3031

RESISTANCE FUSE MAINS

REMOVE FUSE FROM FUSED SPUR OR PLUG

Next: !p2630, f2631

FURTHER INVESTIGATION FUSE (MAINS)

Next: !p2632, !f2633

FURTHER INVESTIGATION FUSE (PCB)

Next: !p2636, !f2637

PRESSURE GAS INLET

ATTACH FGA / U-GAUGE TO INLET PRESSURE TEST POINT

Next: p3036, !f2666

INSPECTION FLUE

Next: p2776, !f2777

PRESSURE GAS INLET

ATTACH FGA / U-GAUGE TO INLET PRESSURE TEST POINT

Next: p2791, !f2790

VOLTAGE GAS VALVE (FOR ADJUSTMENT)

Next: !p2794, !f2795

RESISTANCE THERMISTOR DHW

REMOVE WIRES FROM THE DHW SENSOR

Next: !p2855, !f2856

VOLTAGE PUMP AT PUMP

Next: !p2865, f2866

RESISTANCE HARNESS PUMP

REMOVE CONNECTOR X1 FROM THE PCB
REMOVE THE PLUG FROM THE PUMP ASSEMBLY

Next: !p2867, !f2868

OBSERVATION SENSORS CORRECTLY FITTED

Next: p2901, !f2900

OBSERVATION CHECK PARAMETER B03

Next: !p2907, !f2908

PRESSURE GAS INLET

ATTACH FGA / U-GAUGE TO INLET PRESSURE TEST POINT

Next: p2974, !f2975

VOLTAGE GAS VALVE (FOR ADJUSTMENT)

Next: !p2978, !f2979

OBSERVATION CHECK PARAMETER B06

Next: !p2988, !f2989

INSPECTION VALVES FLOW AND RETURN

Next: p3004, !f3009

INSPECTION VALVES FLOW AND RETURN

Next: p3018, !f3019

RESISTANCE HARNESS PUMP

REMOVE CONNECTOR X1 FROM THE PCB
REMOVE THE PLUG FROM THE PUMP ASSEMBLY

Next: !p3027, !f3028

RESISTANCE HARNESS PUMP

REMOVE CONNECTOR X1 FROM THE PCB
REMOVE THE PLUG FROM THE PUMP ASSEMBLY

Next: !p3032, !f3033

RESISTANCE GAS VALVE AND HARNESS

REMOVE CONNECTOR X3 FROM THE PCB

Next: !p3035, f3043

RESISTANCE GAS VALVE

REMOVE THE CONNECTOR FROM THE GAS VALVE

Next: !p3041, !f3042

RESISTANCE GAS VALVE

REMOVE THE CONNECTOR FROM THE GAS VALVE

Next: !p3044, !f3045

RESISTANCE FAN AND TO EARTH

REMOVE CONNECTIONS AT FAN

Next: !p3049, !f3050

OBSERVATION DOES F04 REAPPEAR

Next: p3067, f3082

RESISTANCE FUME THERMOSTAT AND HARNESS

{GAINPCBACS}
REMOVE CONNECTOR X3 FROM THE PCB

Next: !p3083, f3084

RESISTANCE FUME THERMOSTAT

DISCONNECT LEADS FROM FUME THERMOSTAT

Next: !p3085, !f3086

VOLTAGE PUMP AT PUMP

Next: !p3096, f3097

RESISTANCE HARNESS PUMP

REMOVE CONNECTOR X1 FROM THE PCB
REMOVE THE PLUG FROM THE PUMP ASSEMBLY

Next: !p3098, !f3099

OBSERVATION INTEGRAL TIMER

Next: p312, f313

INSPECTION PCB VERSION

Next: p3121, f3122

INSPECTION BOILER PARAMETER SETTINGS (ABM01A)

Next: !p3125, !f3126

OBSERVATION BOILER RECOGNISES DEMAND (EXT CONTROLS LINKED OUT)

LINK OUT TERMINALS 5

Next: !p316, f315

PRESSURE GAS INLET

ATTACH FGA / U-GAUGE TO INLET PRESSURE TEST POINT

Next: p3142, !f3143

VOLTAGE GAS VALVE (FOR ADJUSTMENT)

Next: !p3146, !f3147

RESISTANCE HARNESS EXTERNAL CONTROLS

REMOVE CONNECTOR X3 FROM THE PCB

Next: !p317, !f318

PRESSURE GAS INLET

ATTACH FGA / U-GAUGE TO INLET PRESSURE TEST POINT

Next: p3156, !f3157

VOLTAGE GAS VALVE (FOR ADJUSTMENT)

Next: !p3160, !f3161

VOLTAGE FAN AT PCB

{GAINPCBACS}
PULL

Next: p3175, f3177

RESISTANCE THERMISTOR DHW

REMOVE WIRES FROM THE DHW SENSOR

Next: p3178, !f3179

OBSERVATION RE WIRE (TIMER BYPASSED)

LINK OUT THE OPENTHERM TERMINALS AS SHOWN IN THE IMAGE

Next: p2358, f322

PRESSURE GAS INLET

ATTACH FGA / U-GAUGE TO INLET PRESSURE TEST POINT

Next: p3202, !f3203

VOLTAGE GAS VALVE (FOR ADJUSTMENT)

Next: !p3206, !f3207

INSPECTION TRAP AND PIPEWORK

Next: !p3219, !f3220

RESISTANCE HARNESS EXTERNAL CONTROLS

REMOVE CONNECTOR X3 FROM THE PCB

Next: !p323, !f324

PRESSURE GAS INLET

ATTACH FGA / U-GAUGE TO INLET PRESSURE TEST POINT

Next: !p3228, !f3223

OBSERVATION FAN RUNNING

Next: !p2875, f472

VOLTAGE FAN AT FAN

Next: !p2876, f474

VOLTAGE FAN AT PCB

{GAINPCBACS}
PULL

Next: !p2877, f2906

RESISTANCE THERMISTOR FLOW / STAT AND HARNESS

{GAINPCBACS}
REMOVE CONNECTOR X3 FROM THE PCB

Next: !p733, f734

RESISTANCE THERMISTOR FLOW / STAT

REMOVE THE CONNECTOR FROM THE FLOW THERMISTOR

Next: !p735, !f736

VOLTAGE PCB MAINS INPUT (LOW MAINS VOLTAGE)

{GAINPCBACS}
PULL

Next: !p786, !f787

OBSERVATION BURNER EXTINGUISH ON DEMAND END

ECO MODE ON
ENSUR

Next: !p792, f1610

RESISTANCE GAS VALVE AND HARNESS AND TO EARTH

REMOVE CONNECTOR X3 FROM THE PCB

Next: !p810, f811

RESISTANCE GAS VALVE AND TO EARTH

REMOVE THE CONNECTOR FROM THE GAS VALVE

Next: !p812, !f813

OBSERVATION DISCONNECT OUTSIDE SENSOR

REMOVE THE TWO WIRES

Next: !p816, !f818

RESISTANCE PUMP AND HARNESS AND TO EARTH

REMOVE CONNECTOR X1 FROM THE PCB

Next: p3046, f865

RESISTANCE PUMP AND TO EARTH

REMOVE THE PLUG FROM THE PUMP

Next: !p867, !f868

RESISTANCE THERMISTOR FLOW / STAT

REMOVE THE CONNECTOR FROM THE FLOW THERMISTOR

Next: p1175, !f1176

RESISTANCE THERMISTOR DHW

REMOVE WIRES FROM THE DHW SENSOR

Next: p2846, !f1178

FLUE GAS ANALYSIS

Next: p2879, f2775

RESISTANCE PRESSURE SWITCH

REMOVE CONNECTORS FROM PRESSURE SWITCH

Next: p2439, !f2487

INSPECTION TRAP AND PIPEWORK

Next: p2951, !f1736

OBSERVATION SYSTEM PRESSURE RISE (OVERHEAT)

OBSERVE THE MANUAL PRESSURE GAUGE ON THE UNDERSIDE OF THE APPLIANCE

Next: p1772, !f1773

OBSERVATION SENSORS CORRECTLY FITTED

Next: p1774, !f1775

RESISTANCE THERMISTOR DHW

REMOVE WIRES FROM THE DHW SENSOR

Next: p1776, !f1777

RESISTANCE THERMISTOR FLOW / STAT

REMOVE THE CONNECTOR FROM THE FLOW THERMISTOR

Next: p2167, !f1779

LIMPET PUMP

Next: p3129, !f1781

OBSERVATION SYSTEM PRESSURE RISE (PRESSURE FAULT CODE)

OBSERVE THE MANUAL PRESSURE GAUGE ON THE UNDERSIDE OF THE APPLIANCE

Next: p1639, !f1974

INSPECTION DHW ISOLATION VALVE

Next: p2072, !f2061

INSPECTION FLOW SWITCH, FILTER AND RESTRICTOR

DHW DISCHARGED AND D

Next: p2649, ?2074, ?2076, ?2078

OBSERVATION PUMP RUNNING FOR OVERHEAT

RESET LOCKOUT AS NECESSARY (PRESS RESET BUTTON ONCE)

Next: p1778, f2608

OBSERVATION SPARKING FROM PCB

DISCONNECT THE IGNITION / RECTIFICATION LEAD FROM THE BACK OF THE PCB

Next: p2548, f3034

INSPECTION VALVES FLOW AND RETURN

Next: p2212, !f2213

OBSERVATION SYSTEM PRESSURE RISE (OVERHEAT)

OBSERVE THE MANUAL PRESSURE GAUGE ON THE UNDERSIDE OF THE APPLIANCE

Next: p2214, !f2215

OBSERVATION SENSORS CORRECTLY FITTED

Next: p2216, !f2217

RESISTANCE THERMISTOR DHW

REMOVE WIRES FROM THE DHW SENSOR

Next: p2258, !f2219

OBSERVATION PUMP RUNNING FOR OVERHEAT

RESET LOCKOUT AS NECESSARY (PRESS RESET BUTTON ONCE)

Next: p2259, f2613

LIMPET PUMP

Next: p3013, !f2266

RESISTANCE HARNESS TIMER SECTION

REMOVE THE CONNECTOR FROM THE INTEGRAL TIMER

Next: !p2359, !f2360

RESISTANCE HARNESS PRESSURE SWITCH

{GAINPCBACS}
REMOVE THE CONNECTORS FROM THE LOW PRESSURE SWITCH

Next: !p2443, !f2486

PRESSURE GAS INLET

ATTACH FGA / U-GAUGE TO INLET PRESSURE TEST POINT

Next: p2715, !f262

RESISTANCE ELECTRODE LEAD

DISCONNECT ELECTRODE LEAD FROM PCB AND ELECTRODE

Next: !p3210, !f2550

VOLTAGE PCB MAINS INPUT

{GAINPCBACS}
PULL

Next: p2628, f2629

RESISTANCE FUSE (PCB)

REMOVE FUSE FROM THE PCB

Next: !p2634, f2635

RESISTANCE HARNESS DHW FLOW SWITCH

{GAINPCBACS}
REMOVE LEADS FROM DHW FLOW SWITCH

Next: !p2647, !f2648

INSPECTION CONDENSING HEAT EXCHANGER (DHW)

DRAIN BOILER DHW CIRCUIT
DISCONNECT THE TWO TOP PIPES RUNNING INTO THE CONDENSING HEAT EXCHANGER

Next: !p2650, !f2651

PRESSURE GAS BURNER IGNITION

ATTACH FGA / U-GAUGE TO BURNER PRESSURE TEST POINT

Next: p2663, f2664

INSPECTION BURNER

GAIN ACCESS TO BURNER

Next: p2671, !f2672

VOLTAGE GAS VALVE

Next: !p2667, !f2668

INSPECTION ELECTRODE AND GAP

DISCONNECT LEAD FROM ELECTRODE

Next: p2673, !f2674

RESISTANCE ELECTRODE LEAD

DISCONNECT ELECTRODE LEAD FROM PCB AND ELECTRODE

Next: !p2675, !f2676

INSPECTION HEAT EXCHANGER

Next: p2709, !f2691

RESISTANCE ELECTRODE LEAD

DISCONNECT ELECTRODE LEAD FROM PCB AND ELECTRODE

Next: p2694, !f2695

INSPECTION ELECTRODE AND GAP

DISCONNECT LEAD FROM ELECTRODE

Next: p3211, !f2697

DISCONNECT CONDENSATE LEAD

Next: p71, f3218

INSPECTION FLUE

Next: p2710, !f2711

INSPECTION BURNER

GAIN ACCESS TO BURNER

Next: p2726, !f2713

INSPECTION INJECTOR

REMOVE BURNER ASSEMBLY

Next: !p2725, !f2714

INSPECTION FAN

Next: p3186, !f2724

INSPECTION CONDENSING HEAT EXCHANGER

REMOVE FAN ASSEMBLY

Next: p2712, !f2730

INSPECTION BURNER

GAIN ACCESS TO BURNER

Next: p2778, !f2779

INSPECTION HEAT EXCHANGER

Next: p2780, !f2781

INSPECTION INJECTOR

REMOVE BURNER ASSEMBLY

Next: !p3154, !f2783

ADJUSTMENT PRESSURE MAX AND MIN

ATTACH FGA / U-GAUGE TO BURNER PRESSURE TEST POINT

Next: p2793, f2792

INFORMATION GAS VALVE ADJUSTED

Next: !p2796, !f2797

TEMPERATURE DIFFERENCE BOILER TO TAP (MIXER PASSING)

ATTACH TEMPERATURE CLAMP TO DHW OUTLET PIPE UNDERNEATH BOILER (SEE PICTURE)

Next: p1174, !f2845

INSPECTION BURNER

GAIN ACCESS TO BURNER

Next: p2847, !f2848

INSPECTION INJECTOR

REMOVE BURNER ASSEMBLY

Next: !p2850, !f2849

RESISTANCE THERMISTOR DHW

REMOVE WIRES FROM THE DHW SENSOR

Next: !p2861, !f2862

PRESSURE EXPANSION VESSEL

APPLIANCE PRIMARY CIRCUIT DRAINED AND DISCHARGED

Next: !p2872, !f2873

OBSERVATION SPARKING FROM PCB

DISCONNECT THE IGNITION / RECTIFICATION LEAD FROM THE BACK OF THE PCB

Next: p2880, !f2881

RESISTANCE GAS VALVE

REMOVE THE CONNECTOR FROM THE GAS VALVE

Next: p2882, !f2883

RESISTANCE ELECTRODE LEAD

DISCONNECT ELECTRODE LEAD FROM PCB AND ELECTRODE

Next: p2884, !f2885

INSPECTION ELECTRODE AND GAP

DISCONNECT LEAD FROM ELECTRODE

Next: p2886, !f2887

INSPECTION TRAP AND PIPEWORK

Next: p2888, !f2889

INSPECTION FLUE

Next: p2890, !f2891

INSPECTION BURNER

GAIN ACCESS TO BURNER

Next: p2892, !f2893

INSPECTION HEAT EXCHANGER

Next: p2894, !f2895

INSPECTION INJECTOR

REMOVE BURNER ASSEMBLY

Next: !p2896, !f2897

RESISTANCE THERMISTOR DHW

REMOVE WIRES FROM THE DHW SENSOR

Next: p2902, !f2903

RESISTANCE THERMISTOR FLOW / STAT

REMOVE THE CONNECTOR FROM THE FLOW THERMISTOR

Next: !p2904, !f2905

INSPECTION TRAP AND PIPEWORK

Next: p2677, !f2924

INSPECTION FLUE

Next: p2958, !f2953

INSPECTION BURNER

GAIN ACCESS TO BURNER

Next: p2954, !f2955

INSPECTION INJECTOR

REMOVE BURNER ASSEMBLY

Next: !p2956, !f2965

INSPECTION HEAT EXCHANGER

Next: p2952, !f2964

ADJUSTMENT PRESSURE MAX AND MIN

ATTACH FGA / U-GAUGE TO BURNER PRESSURE TEST POINT

Next: p2976, f2977

INFORMATION GAS VALVE ADJUSTED (IGNITION FAULT)

Next: !p2980, !f2981

OPERATION DHW (OVERHEAT)

Next: p2991, !f2992

OPERATION CH (OVERHEAT)

CH TEMPERATURE SET TO MAX

Next: p3010, f2998

INSPECTION EXTERNAL BYPASS

Next: !p3005, !f3006

OBSERVATION PUMP OVERRUN

Next: !p3011, !f3012

OPERATION DHW (OVERHEAT)

Next: p3014, !f3015

OPERATION CH (OVERHEAT)

CH TEMPERATURE SET TO MAX

Next: p3016, f3017

OBSERVATION PUMP OVERRUN

Next: !p3024, !f3025

INSPECTION EXTERNAL BYPASS

Next: !p3020, !f3021

RESISTANCE GAS VALVE AND HARNESS

REMOVE CONNECTOR X3 FROM THE PCB

Next: p2665, f3040

RESISTANCE FAN AND HARNESS AND TO EARTH

REMOVE CONNECTOR X1 FROM THE PCB

Next: !p3047, f3048

OBSERVATION SYSTEM PRESSURE RISE (OVERHEAT)

OBSERVE THE MANUAL PRESSURE GAUGE ON THE UNDERSIDE OF THE APPLIANCE

Next: p3068, !f3069

OBSERVATION SENSORS CORRECTLY FITTED

Next: p3070, !f3071

RESISTANCE THERMISTOR DHW

REMOVE WIRES FROM THE DHW SENSOR

Next: p3072, !f3073

RESISTANCE THERMISTOR FLOW / STAT

REMOVE THE CONNECTOR FROM THE FLOW THERMISTOR

Next: p3087, !f3075

LIMPET PUMP

Next: p3150, !f3077

OBSERVATION PUMP RUNNING FOR OVERHEAT

RESET LOCKOUT AS NECESSARY (PRESS RESET BUTTON ONCE)

Next: p3074, f3095

TEMPERATURE EXHAUST GASES

FIT TEMPERATURE PROB

Next: !p3106, ?3107, ?3109

INSPECTION FLUE

Next: p3112, !f3113

INSPECTION HEAT EXCHANGER

Next: !p3116, !f3115

OBSERVATION BOILER RECOGNISES DEMAND (EXT CONTROLS LINKED OUT)

LINK OUT TERMINALS 5

Next: !p319, f320

INSPECTION BOILER PARAMETER SETTINGS (ABM01)

Next: !p3123, !f3124

PRESSURE GAS MAX AND MIN

ATTACH FGA / U-GAUGE TO BURNER PRESSURE TEST POINT

Next: p2990, f3141

ADJUSTMENT PRESSURE MAX AND MIN

ATTACH FGA / U-GAUGE TO BURNER PRESSURE TEST POINT

Next: p3144, f3145

INFORMATION GAS VALVE ADJUSTED (OVERHEAT)

Next: !p3148, !f3149

PRESSURE GAS MAX AND MIN

ATTACH FGA / U-GAUGE TO BURNER PRESSURE TEST POINT

Next: p3100, f3155

RESISTANCE THERMISTOR FLOW / STAT

REMOVE THE CONNECTOR FROM THE FLOW THERMISTOR

Next: !p3152, !f3153

ADJUSTMENT PRESSURE MAX AND MIN

ATTACH FGA / U-GAUGE TO BURNER PRESSURE TEST POINT

Next: p3158, f3159

INFORMATION GAS VALVE ADJUSTED (F04)

Next: !p3162, !f3163

VOLTAGE FAN AT FAN

Next: !p3176, !f3185

RESISTANCE THERMISTOR FLOW / STAT

REMOVE THE CONNECTOR FROM THE FLOW THERMISTOR

Next: !p3180, !f3181

VOLTAGE FAN AT FAN (BAFFLES)

Next: p2912, !f3200

ADJUSTMENT PRESSURE MAX AND MIN

ATTACH FGA / U-GAUGE TO BURNER PRESSURE TEST POINT

Next: p3204, f3205

INFORMATION GAS VALVE ADJUSTED (A06)

Next: !p3208, !f3209

INSPECTION BURNER

GAIN ACCESS TO BURNER

Next: p3212, !f3215

INSPECTION INJECTOR

REMOVE BURNER ASSEMBLY

Next: !p3213, !f3214

INSPECTION EXTERNAL BYPASS

Next: p403, !f428

LIMPET PUMP

Next: !p2970, !f429

FAULT CODES

F CODES ARE BLOCKING

Next: !p501, !f502

OBSERVATION WHICH DEMAND IS SHOWING

Next: p523, f2373

OBSERVATION REMOVE EXTERNAL CONTROLS

REMOVE THE WIRES OR

Next: p529, !f530

TEMPERATURE AMBIENT

Next: p531, !f532

RESISTANCE THERMISTOR FLOW / STAT

REMOVE THE CONNECTOR FROM THE FLOW THERMISTOR

Next: !p533, !f534

PRESSURE GAS BURNER IGNITION

ATTACH FGA / U-GAUGE TO BURNER PRESSURE TEST POINT

Next: p2693, f3221

INSPECTION VALVES FLOW AND RETURN

Next: p402, !f430

System Information

  • Total Tests: 488
  • Sequence Logic: Decoded from encrypted .seq file
  • Navigation: Dynamic based on pass/fail results
  • Source: 4731307 GW SWIFTFLOW 100 SIT Control