Hi Everyone,
Thanks for the advice. I have replaced the synchron valve today as suggested and survived. So far there hasn't been any further noise so keeping my fingers crossed that it has sorted the problem out. Thanks again.
Keonner
Hi Dave,
Thanks for in info. The colour of the wires(both of them) on the replacement valve I have are orange but he colour of the wires on the faulty one on the valve are blue. (both of them). It looks like the same valve but this wire colouring has put doubt in my mind.
If the one apparent...
My Central Heating system is only 4 years old. Every so often, a noise (like a horn being blown)comes from the boiler area (worcester bosh) On checking while the noise is still there I found that a motorised valve just below the boiler is vibrating and if held quietens the noise considerably...