I have just replaced the radiator in my bathroom with a new towel radiator. Closed and emptied expansion tank, drained the system, fitted new lockdown valves and new radiator, bled the new radiator and all others on top floor, switched on boiler.
New radiator got hot, but system needed balancing.
At end of day lost all heat from new radiator and it has not got hot since.
Have bled all radiators with system off and on, still no luck. Last attempt, I had all radiators perfect and uniform temperature, except the new towel radiator (rad and supply pipes stone cold).
With the system off, water flows freely from the new radiator bleed valve with no air escaping or stutters.
Completely lost now - any advice on next steps please.
New radiator got hot, but system needed balancing.
At end of day lost all heat from new radiator and it has not got hot since.
Have bled all radiators with system off and on, still no luck. Last attempt, I had all radiators perfect and uniform temperature, except the new towel radiator (rad and supply pipes stone cold).
With the system off, water flows freely from the new radiator bleed valve with no air escaping or stutters.
Completely lost now - any advice on next steps please.