We turn on the heating and you can hear the motor in the pump running, but there is no movement, the radiators do not heat at all. Have tried bleeding them but no movement, have closed the outlets and opened the inlets fully to bleed, but nothing. Have cleaned out the pump. The boiler is working as we have hot water, just no heating. Can you please help?
I have two permanent cold radiators in my house.They have been bled on numerous occasions but still they remain cold. British Gas says that the system needs power flushing and would cost Â£600.00 or more. I'am quite capable of doing this sort of work myself, can you help me resolve this problem?
You can flush eack radiator out manually but if the system is badly sludged then the best way of removing the sludge is by use of a flushing machine. But you must be aware that there wil be an underlying fault causing the system to sludge and this will need correcting aswell oterwise the problem will come back.
Check you pump is actually working and not just running. I had trouble getting heat to my radiators, took a good few hours to warm up and even then not very hot, plenty of domestic hot water though. Fitted a new pump and now they are good and hot in minutes. Just a well worn pump was the problem, it ran but wasn't pumping much.