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Oct 29, 2020
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This is a long shot-( this post was originally sent to StevethePlumber but I havent heard back from him as yet)

I have a glow worm ultimate ff boiler. Pilot light not lighting. There is power in the unit as it is glowing orange inside the box with the control knob.

Anyway, on the self help front- it always suggests resetting the OVERHEAT button. So, I googled OVERHEAT BUTTON and I found the post by NEILWILEMAN. overheat button - https://www.plumbersforums.net/threads/overheat-button.21850/
You (StevethePlumber) kindly tried to help him ( in 2011) Ive tried to find Neil to ask him about the button but it doesnt look like he is on this site any longer.

What I wanted to know- if you can help at all please- the OVERHEAT button- I dont know if it is sticking out/tripped or if that is the way it is meant to be normally- it's not a button as such- it's like a red screw- and there is no movement when i tried to press it-but maybe my fingers arent strong enough, i may have to push harder. If it is sticking out more than it should, that means it has tripped? and the boiler wouldnt work as such until I pressed it back in? So I need to try and press it back in -but it's not moving to be flush with the nut. Any help at all I would be more than grateful. I have phoned various heating engineers- so far everyone is fully booked til the end of the year and not taking on new customers. Meanwhile Ive no heating and Im truly demented now. I need to try and work out if it has tripped as that might be the answer to my problem- if you know what Im wittering on about I would be so happy if you could put me out my misery. Thanking you all so much.
 

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If the overheat thermostat has tripped, it only needs very gentle pressure on the red button to reset it. If you cannot easily move it, the boiler has not tripped.

Simon G’s advice above is the only way forward.

Probably best calling the engineer who last serviced the boiler first .
 
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