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Hi all, Friend has a powermax 155, and he reports that in the morning when the system fires up a really high pitched singing noise eminates from the boiler for about 20 mins then disappears miraculously. Can anyone give us a clue before we call out the specialists. It also happens in the...

Hi, Well thanks, i will have a gander at it in the morning, let you know how i get on. Many thanks.....

Turn off cold feed then, what am i looking for, sounds, leaks etc?

Hi, Where is the wax capsual then on the pump?

OK, thanks for that will try that today :)

The w/b 28i comes with an internal connection between the cold water supply and the internal pipework in the boiler as standard. To comply with current water regulations, there should be a filler loop fitted with a non-return check valve on it, that is what the optional feature is on the boiler...

Hi all, Question for all the knowledgeable one's on here! Have a Puma 80e, turned on CH, boiler went thru the start-up sequence fully, fired up, then after about 30 secs it shuts down, with a sort of kettling noise coming from the pipe coming down from the heat exchanger, pump making a...