were do I get a diagram and information on airpressureswitch 105he?
what does f1 mean?
burner going of after 2 or 3 minutes and on?
my betacom 30 is annoying me ?
how do i lower the water presure ?
central heating working but no hot water?
what does F14 mean and F5?
should my central heating pump run all the time ?
max of 50 degrees hot water?