my baxi solo boiler will not fire up. the "boiler on" and "fan on" lights are on but no more

alan george, September 2008

Or the air pressure switch is knackered.

Gasman, September 2008

If the boiler is a Solo 1 and the fan appears to be running o/k, the problem is usually the 2 red & white plastic pipes connected to the air pressure switch (bottom r/h corner ) these either develop cracks where the pipes bend or collect water in them. This will stop the fan operating the air air pressure switch.

Ian, September 2008