hi there i have a baxi wall mounted boiler on a single pipe system and when i put the heating on there is a large banging noise coming from the pipe work near the boiler sand it sounds like the pump is seareching for water but works fine heating hot water only please can anyone help
Thanks for your answer, but we have blead every radiator, taken off and flushed radiators but still starts to make a banging noise and pump appears to hunt for water any ideas?
tl
November 2010
sounds like an air lock bleed all the rads starting from the furthest from the boiler
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