boiler it fires up but goes off after about 3 mins

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25 Oct 2006
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need help i have a Sime combi boiler it fires up but goes off after about 3 mins on both c/h and hot water. the first rad does start to warm up before it goes off.

also now the 3 bar release valve is stuck open

but with the 3 bar release valve is stuck open and the filler valve open the boiler will stay alight and the rads warm up.

help or if anyone is in the Ealing area and can have a look email [email protected] thanks
 
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You have already pointed out the problem your pressure relief valve needs replacing.
Pete
 
yes but before that the thing would not stay alight
 
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Your boiler is not going to stay alight if the pressure is not within the correct parameters.
Replace the valve and see how the boiler behaves.

Good luck
Pete
 

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