My heating fails to light if left off for a few days but if i leave the dhw running for 10-15 mins then try the heating again it will come on..Anybody got any ideas?

J.Smith, May 2008

Cheers Geoff..
I Have an electrical/electronic background,i'll get my soldering iron out before i splash out on a new board.

Thanks
J.S.

J.S., May 2008

Cheers Geoff..
I Have an electrical/electronic background,i'll get my soldering iron out before i splash out on a new board.

Thanks
J.S.

J.S., May 2008

A common problem with these units can be dry joints on the main circuit board, where the solder has come away from the contacts and can cause intermittent faults like you describe.
By moving the wires near the board gently, if the boiler starts up then this is the problem, and a new board will be required.
hope this helps

Geoff, May 2008