When I press the + One hour, for hot water the boiler won't start up, but if I turn up the thermostate and press the + One hour for heating as well, then the boiler fires up.
Any idea's why it wont run on hot water only please?
Not an answer, sorry.
Mine started doing this then the water heater stopped working completely last week.I still can't get it to work although the heating works ok?
Marc
October 2010
microswitch in motorised valve actuator is not working.
Ian
June 2010
Automatic Answer
We may have found other answers which could help you.
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix home heating systems.