I fitted a couple of linked HE 30's 5 years ago, they have never been serviced it appears. both still in very good order except that one of them doesn't work. (flashing alternate F.L.) I removed the cover, & flexi from the syphon...... loads of water, so the combustion chamber had water in, the fan would have injected water into the gas valve I guess. Boiler has a noisy fan (not surprising) boiler fired up after chamber drained. I recommended fan change & service but before I could get that in place, a day later boiler fault, flashing FL again. \haven't been back yet. Any thoughts?
