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Mend Glowworm Ultimate 40FF Boiler Pcb Heating

Glowworm Ultimate 40FF?

DHW working fine and all neons come on in correct sequence. For CH, Neons 1&2 keep flashing, fan runs for about 5 seconds, boiler tries to ignite then nothing. CORGI Reg guy carried out power flush, then changed divertor valve and then the pump, but still no CH. I could have had a new boiler installed for money I have already paid out. I now suspect the PCB, but all is fine for DHW. Any ideas anyone.

Karl
January 2009
GlowwormGlowworm Ultimate 40FFHeating, Convector HeatersBoiler Pcb Heating
try changing the heating thermistor there about £18

technogas
February 2009

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Glowworm Ultimate 40FF - CH Not Working