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Rick Ridley
Rick Ridley, UK Heating Engineer
Category: UK Plumbing
Satisfied Customers: 1561
Experience:  30 Years on the tools, now retired, Ex CORGI
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Rick, My Glow Worm Ultimate 60 FF starts up, reaches temp,

Customer Question

Hi Rick,
My Glow Worm Ultimate 60 FF starts up, reaches temp, then cycles with main burner on and off every few seconds until I turn it off, it cools down and restarts normally untill temp reached again, any thoughts ?
Mike
Submitted: 1 year ago.
Category: UK Plumbing
Expert:  Andrew Smith replied 1 year ago.

Is it continually sparking when it does this?

Customer: replied 1 year ago.
I can hear the ignition working and the fan is running
Expert:  Andrew Smith replied 1 year ago.

Does it continue to spark even when lit?

Customer: replied 1 year ago.
The main burner stays lit only for a couple of seconds, so difficult to determine if it is still sparking, could it be that the replacement pcb fitted two weeks ago is faulty ?
Customer: replied 1 year ago.
Can you please give me more info on the possible causes
Expert:  Andrew Smith replied 1 year ago.

The ignition lead could be loose on the PCB, the spark will jump across a gap but cannot pass the mV back to the PCB to tell it that it's lit.

Check there first then check to see if it is still sparking once lit, you could try your ear against the case to see if it is still ticking

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