My potterton suprima has started to make loud banging noises (sounds like 2 or 3 small explosions when the system comes on, then nothing for an hour or so then another couple of bangs etc) - it seems to be when the pilot light goes out. The heating is still working ok, but the noises are concerning me - advice would be welcome on whether it is safe to keep on using or whether it should be turned off until an engineer has had a look at it.
thanks in advance.
thanks in advance.