Glow-worm ultracom 30cxi

[Mvance]

I have a problem with an ultracom 30 cxi, boiler fires temp rises quickly, boiler goes off and cools quickly, fires up again and keeps repeating. This is happening on heating & hot water.

 

[Chalked]

Hi.
It's not a diy fix. And will need specialised equipment to cure. Please ring a local gas safe registered engineer to sort.
Might be worth ringing glow worm for a fixed price repair.

 

[Dotty]

As above.

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