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Mend Potterton Noise Boiler Heating

noise boiler when heating on?

i have a potterton suprima and when the heating fires up the boiler makes a loud humming noise only when heating is on. when just water on it fine no noise any ideas any one thanks?

andrew h
February 2009
My boiler started doing this and it turned out to be the Fan that extracts the carbon (what ever) out of the chimney. As this is poison it eventually shut down as a safety measure. After calling a heating firm they had to order a new fan, monday, which was delivered to them Wednesday and is being fitted tomorrow Thursday. Cost around £290. May take out Maintenance Contract for £110 also.

Joan and Tony Bradley (aged 65)
February 2009
try turning the pump speed up and slightly lowering the boiler thermostat

mike
February 2009
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Free repair help for Potterton home heating systems