Manuals / Glowworm Lighting / Household Appliance / Thermostat

Glowworm Lighting 40 Faulty injector Replace, Faulty PCB flame detection, Does High neon light ?

Models: 40

1 40

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Page 30

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13 Fault Finding

Does the burner

remain alight ?

YES

Is condense drain

Is the low gas pressure

setting correct (see Data

blocked, repair.

Tables) at the test point

Does burner remain

on the gas valve ?

alight ?

YES

Is the low gas pressure setting

correct (see data tables)?

Adjust as necessary.

Adjust gas

Turn High/Low switch to

Does burner remain alight?

“High”.

pressure

YES

Check and adjust “High”

gas pressure

(see data tables)

Will burner remain alight if gas

Is gas pressure OK?

pressure is temporarily

increased?

YES	NO
		NO
Faulty injector - Replace
(Reset pressure)
Faulty PCB flame detection -		YES
Replace PCB		Does “High” neon light ?
(Reset pressure)		Does “High” neon light ?
(Reset pressure)
		NO

Isolate supply

Boiler satisfactory

Check continuity		NO
Check continuity		NO	Replace
between 4 and 1 on			Replace
between 4 and 1 on			High/Low
High/Low switch.			High/Low
High/Low switch.			switch
Switch ok ?			switch



	YES

Replace gas valve
Replace gas valve

PM5

Diagram 13.1

221834B

Page 30

Image 30

Glowworm Lighting 40 manual Faulty injector Replace, Faulty PCB flame detection, Does High neon light ?

Contents

Guarantee Registration EnergysaverImportant Information CE MarkInstructions for Use Boiler Clearances Boilers Installed in a Compartment or CupboardCleaning Protection Against FreezingTo Turn the Boiler Off Overheat Safety CutoffTo Turn the Boiler On Condensation PlumingBSI Certification GeneralSheet Metal Parts Statutory Requirements Range RatingCondensate Gas SupplyElectrical Supply Heating System ControlsWater System Expansion Vessel Flow Boiler MAXWater Makeup Water SytemPressure Gauge Filling a Sealed Water SystemBoiler Location Flue Rear Flue LengthsTerminal Position Terminal GuardUnpacking diagram PreparationRear and Side Flue Application Flue Hole Cutting Wall Mounting BracketWater and Condensate Connections Water ConnectionsCondensate Connection Flue Installation Flue Duct Wall Liner If a wall liner is used, fit self adhesive seal as followsGas Connection Electrical ConnectionTesting Electrical Pump and External Controls ConnectionCommissioning Initial Lighting, Testing and AdjustmentTesting Gas Preliminaries-All SystemsCondensate Check User InformationHeating System Operational ChecksHeat Exchanger Cleaning ServicingSpark Electrode BurnerInjector Condensate DrainFault Finding ElectricalCondensate Sensor Pump Overrun Operation Is there YES Faulty injector Replace Faulty PCB flame detectionDoes High neon light ? KEY Fault Finding Replacement of Parts Ignition Lead diagramCondensate Sensor diagram Interconnecting PCB ICB diagram 14.3 bottom Printed Circuit Boards PCBs diagramControl PCB diagram 14.3 top Control Thermostat diagram 14.4AHigh/Low Control diagram 14.4 Air Pressure Switch diagramHeat Exchanger Secondary diagram Multifunctional Control diagramHeat Exchanger diagram 14.8 FanHeat Exchanger Primary diagram Burner diagramInsulation Sides diagram Insulation Rear diagramInsulation Combustion Chamber Front Panel diagram Viewing Window Glass diagramSpare Parts Spare PartsDescription GC Part No 6291

13 Fault Finding

YES

YES

YES

YES

Faulty injector - Replace

Faulty PCB flame detection -

Does “High” neon light ?

YES