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Mend Glow Worm 60FF Boiler Thermostat Heating

Micron 60FF snag (Glow Worm)?

Hi all.
Micron 60FF playing up. Boiler works fine but ignores the thermostats and runs almost continuously until radiators are red hot. Have to control heat by turning off mains to the programmer / timer. Thought it was the frost stat, but had that checked and replaced by an electrician, along with the room thermostat, but looks like they weren't the issue.
Saw on another forum that someone with the same prob required a "resistor" from Glow Worm which he placed in between the live switch and neutral terminals, which seemed a cure. Spoke to glow Worm who stated that they had no separate part no. for the resistor and so a whole new PCB would be the answer.
Has anyone else had this problem, and do you know of a fix, or if the "resistor" can be purchased without the expensive PCB?
Thanks for any light you can shed on this

Phil H
December 2010
Thanks for reply Brian. Yes, boiler not responding to setting on room stat and getting a lot hotter than requested.

Wally11
December 2010
a bit confused boiler is supposd to get the rads red hot the room stat controls the room temperature not the rad temperature do you mean the room is too hot and the room stat and/or timer aren't switching the boiler off

brian
December 2010

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