CH noises!

[colinjwall]

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 guy and he told me to try changing the flow direction on the valves, other than this he didn't know and said I should contact the boiler people (Baxi). I changed the flow direction and it hasn't made any difference.

Any ideas as to what my problem is and what the remedy is?

Thanks

Colin

 

[Min]

clicking noise upstairs

I think you are going to have to be more specific.

Does it click all the time like a clock, intermittently, when the boilers on, CH on, HW on?

And where upstairs? Where's the boiler - upstairs, downstairs...... If you trace the clicking noise, where is it actually coming from?

 

[colinjwall]

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 like a clock in a quite room.