I have a Potterton Promax HE about 5 mins after boiler has come on there is a loud whining noise, i have had the manufactures out to look at the boiler they said there is nothing wrong with the boiler/fan etc, any ideas why this is happening and how to cure???
Whining noise is normally bearings so a fair assumption would be the fan or pump but if the manufacturers came out and said it was neither surely they should find out what it actually was because if never fitted one new that sounds like that
I have had gas valves make a squealing noise before but not too sure on your boiler model, hard to say not being there sorry
I have a Potterton Promax HE about 5 mins after boiler has come on there is a loud whining noise, i have had the manufactures out to look at the boiler they said there is nothing wrong with the boiler/fan etc, any ideas why this is happening and how to cure???
Please can you tell me more about "correctly configured" the old boiler was replaced with the promax HE nothing was changed with the system should the old pipes have been changed?
There are not many noises made from this boiler, but if it sounds like a aeroplane taking off now and again , you may find the heat exchanger clogged with debris, I would either put in a sludge remover and leave for a while and or clean the system.
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