d.h.w cycles on and off, boiler works fine in c.h.mode possibly d.h.w/c.h.potentiometer or d.h.w/c.h.sensor.

john, February 2007

can anyone give me any advice i have a ravenheat he120 boiler the ch works fine but the hot water is intermittent in if the tap is opened the boiler fires up and heats the water then it cuts for a while then kicks back in again.. I have cleaned the heat exchanger and diverter valve but no good. any advice please?????

phil, February 2009

yes change the overheat thermostat cost 28£ inc postage

lister_george@hotmail.com, February 2007