HW is working but CH is not.
I recently had some TRVs fitted and system drained and refilled. Maybe there is air in the system?
The CH pump in the loft is red hot.
I was going to try to bleed the pump, but cannot open the top screw.
Do I need a special screwdriver or tool for this? Its a big screw. Unable to shift it using my biggest screwdriver.
I recently had some TRVs fitted and system drained and refilled. Maybe there is air in the system?
The CH pump in the loft is red hot.
I was going to try to bleed the pump, but cannot open the top screw.
Do I need a special screwdriver or tool for this? Its a big screw. Unable to shift it using my biggest screwdriver.