I have a baxi solo 2 50pf which only fires up occassionally. The "boiler on" light comes on but nothing else and there is only intermittent power to the fan. The following parts have been replaced as brand new:

fan - pcb - thermostat sensor

somebody please help as every time i replace something it appears to work but then boiler shuts back off and doesn't come back on.

Richard, March 2008

the pressure switch worked thank you

richard, April 2008

check you are getting 240v to the switch live on the boiler and not just the permenant llive

Paul the gasman, April 2008

try a new pressure switch .. could be getting stuck .. sounds like uve covered all the other options

matt, March 2008