I've a combi heating system only 4yrs old. all radiators have been working fine until now.
One radiator in the bedroom has ceased to get warm. The trv entrance copper pipe is getting warm and is slowly warming top corner of the radiator.
The exit valve copper pipe remains cold.
I have drained system from pushfit under exit valve. The radiator and valve exits normally. I have also removed valve from radiator and the radiator bleeds freely, making me think there is no blockage. It seems the radiator loop isnt flowing as the hot enters but doesnt continue loop.
Hope this makes sense
One radiator in the bedroom has ceased to get warm. The trv entrance copper pipe is getting warm and is slowly warming top corner of the radiator.
The exit valve copper pipe remains cold.
I have drained system from pushfit under exit valve. The radiator and valve exits normally. I have also removed valve from radiator and the radiator bleeds freely, making me think there is no blockage. It seems the radiator loop isnt flowing as the hot enters but doesnt continue loop.
Hope this makes sense