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Mend Glow-worm Micron 50ff Ignition Thermistor Boiler

Fault with my Glow worm Micron 50ff ignition?

When I start the system up the burner light and heating comes on for about 1/2 hr, but then turns itself off and radiators get cold? Faulty PCB (loose connection) or thermister... any ideas. If we leave it a while we can start the process all over again.

cat
December 2005
Glow-wormGlow-worm Micron 50ffHeating, Home Heating SystemsIgnition Thermistor Boiler
Check o/h senson and air pressure switch .. failing that .. check relays on PCB or change the PCB :)

AJ
November 2006

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Glow-worm Micron 50ff Fault - Ignition & Heating