British gas will always try to sell a new boiler, what were they suggesting though that would give similar performance for mains power hot water. Hope mike has some advice with this problem to pass info onto local gas engineer.
Post by Mike the Boilerman on Mar 7, 2014 6:54:08 GMT -5
This sounds like 'explosive ignition' to me. I've heard the 185 is particularly prone to it but I've yet to encounter one doing it myself, so I'm not really sure why it happens on the 185 specifically. I'd be checking the spark gap and burner pressure for correct values, then replacing the ignition lead and control board.
Hi I had this problem a couple of years ago and signed up to British Gas boiler care and got them to fix it a month later ! Im not exactly sure what it was but they replaced a round metal disc in the boiler if that helps, looked quite insignificant when the spare part arrived so couldn't have cost much ?
my 185 has just started ''shotgun''effect,since i treated it to a new pcb and electrode and lead. anyone any ideas, its never done this before,but seems like a lot of people are the same , cheers , tony
powermax boiler 185 has recently started making the explosive bang as described in previous posts, mike has suggested a heating engineer to check the spark gap and burner pressure for correct values, before replacing the ignition lead and control board. Are there any other checks or tests to be carried which are related to the cause of the explosive bang.
We had this explosive ignition on our 185. The engineer said it was the spark gap had got too big on the ignition electrode, reset that and it was fine. Apparently gap should be about the thickness of a pound coin ? He wasn't impressed with the quality of available replacement electrodes, apparently they're very poor compared to the original ones.