SAUNIER DUVAL HELP PLEASE...It has cost me £300 so far

[Ian.MacMillan]

Hi Can anyone help me by Thema F23E has just been fixed and now I am getting noisy banging after about 3 hours of being on. I have checked for air in Rads drained the system and re-filled and still this banging. I have got funny plugs on the end with numbers 1 to 5 and when I turn the upstairs ones the banging starts and stops. I took 3 of today and no banging so far. Is that ok to do so?

Has any one got the manual if so could they send it to me or ant help. Thank you. Or any cheap plumbers around Chester.

Ian

 

[kevplumb]

the (funny plugs ) are thermostatic rad valves

and it sounds like they are fitted on the wrong ends of the rads

similar to

 

[DarkInferno]

or no bypass... boiler kettling as all the trv's turn off?

 

[kevplumb]

good point it has a built in bypass
but the mi shows an external one as well

 

[Ian.MacMillan]

Thanks for telling me what they our, so is it ok to leave them off? The RADS can not blow up can they or the boiler?

Thank you

 

[kevplumb]

take the white bits off as a short term thing and see if the noise stops

no it wont hurt anything usually

 

[Ian.MacMillan]

Thanks again. How will I know if they our on the wrong sides of the Rads etc. Is the boiler ok, when I touch the red slide switch when the banging starts the noise stops straight away and also when the banging starts and I turn off the BOILERnoise stops, could it be the slide switch.

cheers

 

[Ian.MacMillan]

The hot water is fine and the boiler goes on and off as normal. When I turn the heating 1 red light goes on then the main light goes back to green is that ok?