We have a Sime Superior 50 boiler which lights up every now and then. The Pilot is alight. Fan seems to be working ok - it comes on but doesn't light all the time. Changed pump and two valves and time clock and room thermostat and stat on hot water cylinder. Hot water was working but heating not getting through. Seems to be getting worse. Any advice appreciated.

Stephen Huckfield, May 2007

Sometimes its just better to get someone in. If you've changed all those parts d.i.y its cost you more than a good service engineer would have charged too identify the real fault. it sounds as though you have done so much the original fault may have gone but there could be more wrong now than their was in the first placeand the information now is too jumbled to make sense.i know you probably don't want to hear it but you need someone with experience of system and control faults.
There is too much going on for advice on-line.

Terry, May 2007

you seem to have wasted alot of money on new parts for nothing.
you don't make sense
its coming on but don't light all the time. whats coming on?
heating not getting through. getting through what ? the heating either works or it don't.

any advice. ya try explain it bit better than that, plumbers ain't like paul daniels.

hi-spec plumbing, May 2007