glowworm combi no hot water

[Anonymous]

on occasion i get no hot water from this combi boiler.
but if i put the heating on for a few minutes the hot water then starts to work.
on one occasion you could hear a microswitch flicking on and of and the burners switching on and of.
could it be the pressure switch?

[GuestParticipant]

try replacing the diapragm washer in the diverter valve. The washer costs a few pound and takes between 1/2 hr and 1hr to replace. Be careful of the springs inside !!!!!!!

[marklivingstoneParticipant]

thanks for the answer to this problem it worked a treat

[Author]

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