Recent content by DeeZarster

Can't be certain as to the make of the former valve head, I assume Honeywell as the whole system is Honeywell. Again, can't be certain of the fault on the old valve. sorry.

As far as I am aware because the original valve was faulty. Not sure if the new valve which has 5 wires, no Brown, replaced an old style valve with 6 wires. which is why i am wondering if the wiring for the cylinder stat needs to be changed as implied in the instructions. The valve appears...

With CH turned off, HW turned on, Rads get extremely hot.

Can anyone advise please. A plumber has fitted a replacement V4073A motorised valve to a friends, all Honeywell CH system. Problem is, hot water is bleeding into the heating side of the system and the valve does not appear to be controlling this correctly. Independently, the programmer, wall...