cold rads

mallewin · 5 Mar 2004

woke up one morning to find that rads haven't come on. drained system and bled rads but now joy. have potterton suprime. hot water fine but when i put on the ch it sounds like a kettle boiling and then loud banging sounds above boiler (wall hung) all rads are stone cold. please help

IanDB · 9 Mar 2004

Not an expert. You could check the zone valve to make sure that it is opening when the CH comes on. If it has failed the boiler will heat up but will not be able to pump water round the system - hence overheating.

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cold rads

mallewin

IanDB

DIYnot Local

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