Boiler water supply
My hotwater tank upstairs was leaking. I drained it. Now I try to fill it up again. But the water doesn't really come through. Glow worm shows error message F9. No pressure. How can I get the tank to fill and the water to reach the boiler? Please help?
Advice from 1 local tradesperson
Check for any clogs or it's a possibility of air lock.
