Recently had radiators replaced & all are working very well except 1 radiator downstairs which remains cold most of the time.
When all radiators in house are on full, it will eventually become warm after approx 15 mins but never gets fully hot.
Have tried turning all other radiators off to force heat to this one, but the radiator remains cold & very quickly this causes the combi boiler to overheat and reset.
Flow pipe to this radiator remains cold most of the time and is only warm at best. Radiator has been bled & also removed & flushed. It doesn't have a TRV.
It has been suggested that the system is powerflushed, however this was done when boiler was replaced 18 months ago. Any suggestions to avoid the cost ?
When all radiators in house are on full, it will eventually become warm after approx 15 mins but never gets fully hot.
Have tried turning all other radiators off to force heat to this one, but the radiator remains cold & very quickly this causes the combi boiler to overheat and reset.
Flow pipe to this radiator remains cold most of the time and is only warm at best. Radiator has been bled & also removed & flushed. It doesn't have a TRV.
It has been suggested that the system is powerflushed, however this was done when boiler was replaced 18 months ago. Any suggestions to avoid the cost ?