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potterton suprima 30?

boiler comes on but noises comes from boiler and pipes within seconds as if it will explode both pipes very hot coming out of boiler.What can it be
dave, September 2008
id say pump too

iain, September 2008
Sounds like the pump is either stuck or faulty. If pump sounds as if it is running the system water level may be low.

Ian, September 2008
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