Recent content by john jones

Hello ChrisR and DOB Dole, thanks for responding. the fault finding instructions inside the boiler led me to either modulation board or air pressure switch. However where an instruction asks "is there 240v ac between such and such" I have no way of checking this so assumed that there is. Before...

no. absolutely no attempt to fire up. the red led on the modulator board lights up but thats it.

my potterton puma 80e will not ignite for hot water or c h I've replaced the modulation board and the air pressure switch but this has changed nothing. It was being very noisy before it broke down and the shut down led would come on every time I used hot water, but only after I'd turned off the...