I don’t know if you have come across my faulty Valve problem before but the trouble that I am having is that the rads are coming on, ( ie Are hot ), when the boiler is on Water only. It seems that the valve isn’t doing its job properly. (ie The valve sticking). Would changing the “synchron motor” fix this error? If not would changing just the head fix the problem or do you think that I need to change the whole unit. When I take of the Haed of the unit I will be able to see the spindle that operates the valve, is it worth turning it back and forth with a pair of plyers to try to loosen the valve.
I look forward to your expert opinion.
Regards Mr T Vallance
