I have a heating system zoned by Drayton zone valve actuators. One of them sticks open sometimes - not every time.
If I tap it with my finger it works - just like magic.
Everything else works okay.
Could the cause be the valve or the electrics behind it please.
Thanks
If I tap it with my finger it works - just like magic.
Everything else works okay.
Could the cause be the valve or the electrics behind it please.
Thanks