arthur

[arthur]

hi everyone.i need some advise with the following.6 months ago i had a vaillant eco tec boiler fitted and trv to all radiators 9 in total 2 rads being upstairs.all trv work fine apart from one of the 2 upstairs which continualy calls for hot water until the boiler shuts off.could this faulty trv be venting.also there are times when the heating has been on for an hour that trv start vibrating until i turn clockwise or anticlockwise then it stops.can anyone advise.i have tried getting the installer back without any luck.
ta

 

[newbie1]

possible he has put the directional as opposed to non directional trvs on or they are cheap and nasty ones
first port of call is get someone reliable to change the trv for a bi directional ie it can go on either the flow or return
was he a registered fitter or a chancer did you get a certificate through from gas safe

trvs are designed to allow heat until that rooms demand is satisfied so it may just be a cold room

 

[arthur]

hi and thanks for your help.the trv are bi directional and yes i have the certificate from him.

 

[newbie1]

in that case it could just be a dodgy trv was system flushed as well