Hi.i have a potterton prima,
The problem is the rads are getting v hot when boiler is heating the water.It had a new motorised valve about 18 months ago.
any ideas please/cheers.
Re the motorised valve it is a Myson power extra and it is the only one on the system.It has 2 x lights on the top on for ch,and one for hw.Is the ch valve part of the combined motorised valve?????.
thanks for any help.
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