We've had a few different people out to try and fix the problem over the 18 months and done the following:
- Cleaned the whole central heating system out followed with an inhibitor (done this multiple times)
- New TRV installed
- New radiator installed
Each time we've done these, the radiator will work for a day or 2, and then stop again.
The pipe going into the radiator is hot and can be traced along the floor by the warmth right up to the trv valve, but the radiator itself is cold, as is the pipe going out of the radiator.
The TRV pin isn't jammed and we've bled the radiator. All other radiators in the house heat up perfectly. We had a new boiler installed earlier this year and the system has been great but this one radiator just will not heat up, even if we turn all the others off.
We've spent quite a bit so far trying to get this sorted and it's frustrating that each time we think it's sorted, it ends up stopping again. Would love any other suggestions that might get this fixed!