my potterton puma 80 wont fire up no warning lightsare on preasure ok no programer is atatched pilot light on gas on just wont fire up

james athony butler, August 2007

When you open a hot water tap, does the fan come on? If not then this is the problem. If the fan does come on then it could be a problem with the air pressure switch or gas valve. Failing that it could be a thermister or pcb fault, it could have over heated. To cut a long story short, you need to call an engineer out.

Neil (baxi engineer), August 2007