Ideal Slimline classic keeps cutting out

31 Jan 2008
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United Kingdom

Recent new home (2 years old), Ideal Slimline Classic with Boilermate OV in upstairs cupboard - boiler repeatedly cuts out and relights straightaway. Seem to have heat and hot water a-plenty, but any suggestions as to why it is doing this ?

Will call in 2-year home warranty, but knowing the shoddy workmanship Wimpey put in to the house in the first place doesn't inspire me with the confidence that they will send someone that can fix it.


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Boilermates are inherently uneconomical due to being a thermal store. Your boiler could just be dry cycling to keep the store up to temp.

Outside chance that the store stat has had it.
... that they had installed a nice shiny eco-friendly cheap-to-run system.

Thanks for the reply - I'm not a boiler-engineer (obviously) but it seems like, because of the rate at which it keeps going out and relighting (sometimes every 5s or so, for minutes at a time), there possibly is something inside the gas boiler that should detect it is lit, but isn't, if you see what I mean - does this sound likely ?

Or is that what the store stat does ?

As it is this frequent then it could be the air pressure switch failing, or flame rectification not being deteced by the pcb.

Outside chance it could be gas valve or pcb, but check the first 2 first.
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