Boiler is in airing cupboard.
Clicking noise occurs if the boiler is on or off.
It's heating that we notice.
It can last for ten minutes, stop for a few minutes then last for 30 mins and so on.
It seems to be associated with the radiator inlet valves (thermostatic).
It clicks just...
Hello,
I have had installed a new closed (combi boiler) CH system and am getting problems with a clicking noise upstairs. Sounds like a clock ticking loudly. The guy who fitted the system said it was faulty thermostat valves and replaced them but the problem hasn't gone away. I phoned the...