Thanks for the help
I assume the pump if functioning as I can feel it vibrating sligty when in use.
Is it worth me draining the system to check the pump?
There wasn't much silt in the system when the sensor and filter were checked/changed.
It can run fine for 24 hr straight and then as...
Hi, iv got a vaillant ecotec 28 boiler.
Problem I'm having is that it only seems to work when most of the rads are closed off.
Also the hot water temp is erratic.
The pressure sensor has been recently changed, the expansion tank has been checked and the filter in the hydro block checked by...