I have 13 radiators in my house, I have drained the system and refilled it again. I bled Them all 7 are working 6 arn't. The water returning to the expansion tank is piping hot. Any Ideas what the problem may be?
the 6 radiators that are not working have you tried bleeding them and only cold water is coming through you could try turning the 7 radiators that are working off at the valves which will push more pressure onto the 6 that are not working.
Was the system working before you drained it
When you drained the system, did you close the valves at boths end of the radiator or just the thermostatic valve end..
Are the non working radiators all upstairs.
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