Halstead bioler

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Is there a small copper pipe behind the boiler on the external of your property? If this is dripping could be a fault with the prv or expansion vessel
 
If your Halstead bioler loses preasure every day, then that indicates a leek ( or even a leak! )
 
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Not always as the prv might not be correctly shutting if seem this often on halted and saunier duval boilers.
 
My boiler loses preasure every day, please can you help

Yes there is a small pipe outside on the external wall. can not get any hot water now a red light comes on now above the on/off button please can you help do i need a plummer
 
My boiler loses preasure every day, please can you help

Yes there is a small pipe outside on the external wall.....

It is above my extenstion, i looked out of the bedroom window and so a couple of drips coming out

Yes there is a small pipe outside on the external wall. can not get any hot water now a red light comes on now above the on/off button please can you help do i need a plummer



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Seems like a leaking safety valve, which would need repairing or replacing.
Before that gets done, you need to find out WHY it started leaking. Usually, it is a sign of corrosion in the system due to poor installation and/or poor maintenance. Expansion vessel also suspect.
When is the last time your system had a good service/check up?
 

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