After some advice please?
There are clicking sound coming from radiator when heating up......starts fast then slows down? is it a faulty TRV ? does them on 4 of them......defo bi-directional valves
thanks
There are clicking sound coming from radiator when heating up......starts fast then slows down? is it a faulty TRV ? does them on 4 of them......defo bi-directional valves
thanks