Potterton Suprima 50 issue

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7 Mar 2025
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Hi,

I’m at my wits end. My boiler is having issues, probably 2 or 3 times a day.

It boots up and works for a few minutes. The middle light will go solid green and the flame will start for anything between 3 and 8 seconds before going off and the light flashing green. It will do this for a few seconds then go solid, flame again for seconds before repeating.

The radiators and heating will work but luke warm.

Sometimes the light then goes solid red and the gauge has to be turned off and back on again.

Someones this works first time and we go back to the above loop. Sometimes we have to do this 10 plus times before we get away from the red light and have luke warm service.

I have no boiler, plumbing or electrician knowledge so any suggestions in the form of talking too a child.

Thanks.
 
Sounds like it could be overheating, but could be other things, so as above you'll need a heating or gas engineer if boiler related.
 

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