Leak from a 'valve' in my airing cupboard Help and information on all topics relating to your central heating, air conditioning and ventilation issues.

[stuntdog23]

I had a small leak in my hot water/central heating system. Can anyone help my identify the problem part? It is a 'valve' on a pipe behind the water pump. It has a clear cap with a red indicator underneath. The plastic cap has begun to perish and hot water was spraying from the seal. I have turned the hot water and central heating off and the leak has stopped.

[stoneyboy]

Hi stuntdog23,
Without seeing how the valve is installed in the pipe work it is difficult to positively identify it but I guess it is a thermal balancing valve.
Regards S