Recent content by wilmac32

Blow off valve is inside boiler with a pipe off it run to outside property.Check this pipe outside to make sure no water leaking from it as even a small drip from it will drop pressure in system.Gas valve valve has nothing to do with pressure of water in system.

you must have a leak on your system for the pressure to keep dropping.check the safety blow off valve is not passing,if that is ok then check your central heating system for leaks

if the system was drained down to fit towel rail then suspect you will need to fill and get rid of any air locks