Dodgy Thermostat valve

[Craig Yates]

I have tried to remove a radiator with a Honeywell Thermostatic valve.

I turned the water off on the outward flow end of the radiator and turned the valve to zero on the inward flow.

When i released the nut to drain the radiator the valve end was still open.

What have i done wrong?

How do i stop the water without having to drain my heating system, which is a Baxi back boiler.

 

[Agile]

Its not always sufficient to turn the TRV head down to zero.

Most are supplied with a decorators cap to close them completely.

Dont forget there is water inside the rad to be drained out!

Tony

 

[ChrisR]

If the house is warm, your trv is probably dud.

Remove head from the valve, (that'll be dry), insert something like a 5p coin, and replace the head while set to max. Now when you turn the head down it wil push the pin further.