Water keeps flowing out of my header tank overflow.
It only happens when the heating is on, even if the room stat is set to low (off).
The water is coming up the vent pipe, filling up the tank and making it overflow.
Have changed the boiler stat, and tank stat (just in case). When set on water no problem once heating turns on, and if i do not use the water, I get the overflow
It only happens when the heating is on, even if the room stat is set to low (off).
The water is coming up the vent pipe, filling up the tank and making it overflow.
Have changed the boiler stat, and tank stat (just in case). When set on water no problem once heating turns on, and if i do not use the water, I get the overflow