I have a Baxi Bahama 100 Combi Unit, and recently it has started cutting out on me. When running the hot water it will ignite for about 1 minute, just enought time for the water to get hot, then it will cut out and the water will run cold. If I then turn the tap off and back on again, it will reignite and run for a minute and cut out again. The same applies to running the central heating. Whilst this is going on there seems to be a slight rush of water somewhere inside the boiler, but whether this is related I dont know. Can anyone help, as the weathers starting to get cold!

Jonathon Mann, October 2005

Had a similar problem fan turned on and the gas would just ignite then would go out. Turned out it was the larger of the two circuit boards. Works like a dream now!

STEVE, October 2005

Ive got something similar - on heating and water, the gas lights for ~10 seconds then goes out, and this repeats every ~30 seconds. Ive found in the past that replacing flowswitches has helped, but this time I reckon its related to air flow in the combustion chamber - if I open the front slightly, the boiler works fine. Going to check pressure gauge and exhaust pump next...

JimChuffff, October 2005