recently installed a new radiator and it doesnt work!

[andaz]

I have recently installed a new radiator in the kitchen and it doesnt work!

I have tee'd off the existing 15mm pipe work under my kitchen units and have used 15mm plastic pipe to feed my new radiator. I installed a trv and lockshield on radiator and re-pressurised the system and bled all radiators! Pressure is 1.5 bar.

I switched system back on fired it up and all radiators heated up apart from new radiator. I have checked the pipes i tee'd off from and they are flow and return as one gets hotter quicker than the other!
Trv not sticking either as its brand new.

Any ideas?

thanks

 

[Burnerman]

Close off some of your existing radiators, and see if the new one responds......could just need balancing, as water will flow around the circuit that offers least resistance.
John

 

[moggridgeplumbing]

Ahhh! Don't always think because it's a new TRV it's ok - and it's not because it may be a cheap one either. Come across faulty ones before. Take the head off and also make sure you have opened the lockshield valve! Then retest.

 

[bengasman]

Obvious first question: how do you know you piped it up correctly?

 

[andaz]

All up and running people. Thanks I shut all the valves to all rads throughout the house and turned heating on full and opened the loackshield and trv on the new radiator and it started to heat up! Then had to open all others gradually little by little until I balanced the system. Thanks again!