Recent content by descole

I think I may have solved the problem or at least one major issue I drained the boiler then removed the braided pipe between the expansion vessel and the aav. The pipe was completely blocked at one end with very fine - compacted black dirt. I unblocked the pipe using a piece of wire by...

When the boiler is cold the pressure gauge reads just below 0.5 bar and is stable. When the boiler is running, pressure rises to 2.5 bar. Everything seems to function ok. I re-pressurise the boiler whilst cold to 1 bar. When the boiler again operates pressure rises to 3 bar and the safety...