While you wait for answers, we may have found some information which could help you.
Success
Message
Diverter valve?
RAVENHEAT RSF84T CUTING IN & OUT?
ravenheat ls 80t?
ravenheat HE 85T bolier water is blowing through auto air vent any ideas?
ravenheat h85t looses pressure on ch only?
Air switch on ravenheat csi system a?
Ravenheat HE85T - no central heating, water working fine though?
ravenheat 29t ls100t?
I have the same problem did you get an answer?
ravenheat LS80 shower water not as hot as it used to be?
tap water luke warm?
heating?