Just as the engineer said, the new thermistor thermostat, did not cure the problem.He flushed the system and used a cleaner.Ran the system. Reflushed and then added inhibitor?.Boiler now works with no noise.Just shows some engineers are better than others in every trade.
Thank you for the replies to my problem.I have called in another engineer and he has done many more checks than the previous engineers (I watched this time!)He said that a pressure test should have been done to check if water was in the diagfram?A heat test to see if it is an over heating...
I have to admit i did`nt see him doing the service and really have no idea what he done to be honest.I just took his word for it.I was prepared to pay for the service and any repair but the engineer said the service had probably cured the problem i was having and it was left at that as it...
I would be grateful if somebody could help with the the above problem please.I have a Worchester 28i junior boiler that started making strange noises when the central heating came on.The first two rads are very hot and the problem is not apparent with just hot water. I had a local firm come out...