Hello
Our bathroom radiator has started to not get warm or only get slightly warm very slowly. The radiator is upstairs and is the closest to the boiler on the upstairs run.
It is a chrome, ladder-type towel radiator and the pipe sometimes gets hot before the flow valve but the rest of the radiator is cold or luke warm. It doesn't have TRVs and both valves are wide open and don't get routinely adjusted, so I don't think it is a sticking valve.
Things tried so far:
1. Bleeding, no air in it.
2. Getting the heating hot then closing the valves on all other radiators - seemed to solve the problem for a few days, even when I open the rest of the valves the radiator worked, but now it has stopped working again.
3. Re-balancing the other radiators - all other radiators in the house get hot and I have tried turning down the lock shield valves, but that hasn't helped.
3. I added a new radiator to the system 18 months ago and put a chemical cleaner through the system and flushed it through and added inhibitor when I re-filled.
I am guessing the likely cause is sludge build up? Could it be the inside of the radiator failing and blocking? I am wondering what to try next, would it be worth replacing the radiator or do I need to get the get the system power flushed?
Thanks in advance.
Our bathroom radiator has started to not get warm or only get slightly warm very slowly. The radiator is upstairs and is the closest to the boiler on the upstairs run.
It is a chrome, ladder-type towel radiator and the pipe sometimes gets hot before the flow valve but the rest of the radiator is cold or luke warm. It doesn't have TRVs and both valves are wide open and don't get routinely adjusted, so I don't think it is a sticking valve.
Things tried so far:
1. Bleeding, no air in it.
2. Getting the heating hot then closing the valves on all other radiators - seemed to solve the problem for a few days, even when I open the rest of the valves the radiator worked, but now it has stopped working again.
3. Re-balancing the other radiators - all other radiators in the house get hot and I have tried turning down the lock shield valves, but that hasn't helped.
3. I added a new radiator to the system 18 months ago and put a chemical cleaner through the system and flushed it through and added inhibitor when I re-filled.
I am guessing the likely cause is sludge build up? Could it be the inside of the radiator failing and blocking? I am wondering what to try next, would it be worth replacing the radiator or do I need to get the get the system power flushed?
Thanks in advance.