screaching when using hw from baxi cmbi 105e

[MCArthur]

When i turn the hw tap off my baxi 105e combi makes a screaming noise for at least 1 min, if i turn the hw tap quickly on then off again it stops. Seems to be coming from the lower half of the boiler. Its 13 months old (just out of gaurantee).
Its ok with ch, just happens when i use hw, can't afford expensive plumbing bills so close to crimbo, pls help me anybody!!

 

[Brett Favre]

Unfortunatley mate the diverter valve has gone, its a common problem with the 105e I would probably say your looking at £100 for the valve plus 2 hours labour so roughly in total £200

 

[kevplumb]

cobblers
dont be giving prices out read the top
o rings there is a thread on the subject and the lad is an engineer

 

[MCArthur]

Cheers kevplumb, any more info mate so as i can sound like i know what i'm talking about when the plumber visits!!

 

[kevplumb]

apparently baxi had probs with diverter valve o rings
which they have now sorted
ill try and find the thread for you

 

[MCArthur]

Thanx, spoke to baxi today and mentioned o ring prob and they said if this was the case then the screaching would have started straight away after installation. They said would cost £170 for engineer visit! Is it worth speaking to a local plumber?

 

[fitz1]

still sounds like o ring problem. u shouldn"t have told baxi age of boiler.