The boiler fires up on its own when there is no demand from timer or room stat and because the recirc pump is not running the boiler makes a noise like a kettle boiling and then trips out on the overheat stat, any advice would be appreciated.
I have a ravenheat boiler and the lower red light come on, it will not work. What causes the light to come on and whow do i fix it
Noddy
September 2008
Alan,
Yes i have replaced the main PCB and that has solved it.
Check out e-bay i managed to buy it for a few quid.
But be careful i bought one with the same part number but was listed for a different model of boiler in the Ravenheat range and it did n't work !
Good luck.
Slim
September 2006
Not an answer but another question - I have a similar problem, I can't turn teh central heating sidde off, did you find the problem???
Alan
August 2006
Lee,
Thanks for that i have tested the microswitch it's operating OK do have any other thoughts on what the problem may be ?
Slim
May 2006
check the microswitch on the back of the main 3 way valve, it may be sticky?