radiator thermostats

[billdekoning]

hi,

Can anyone help me with the following. I cannot seem to get my Radiator Thermostat working. When I put the Honeywell white with black top button onto the valve , and turn it to cold, the radiator still stays hot. What have I done wrong?

Bill

if its an old valve maybe faulty sensor.

[CharterGAS]

they are old valves that you are talking about, maybe worth replacing.

[bishbosh77]

Is the Thermostat fitted to the correct side of the rad?

[CharterGAS]

shouldn't matter as even the old Honeywell trv's are reverse flow

(from memory)

[Alanka]

I don't know this TRV but usually if a TRV is not fully screwed or clipped home, then turning it to 'cold' will not push in the pin fully and so will let hot water by.