Search results

Thanks for your reply, Tony. We're out about £2,450 in total, for which he was here pretty much three whole days (and there was one other guy with him on one of the days).

Thanks, both, for your replies. I spoke to the guy first thing yesterday and asked basically the same question that I posted here. He explained that someone had put leak sealant in the system, which is fine for older boilers but not for one such as a Vaillant 937, and that that had corroded...

Photos of corrosion(?) in boiler

:oops: Apologies, I've just remembered a further important detail; it's not so much that he can't fix it as that replacing the heat exchanger would apparently be more expensive. Does that sound realistic?

How do, all - first time poster. We had a Vaillant Ecotech 937 Plus boiler installed just over 6 years ago, and over the last few weeks it became increasingly difficult to get any hot water out of the taps, although the central heating was unaffected. (We'd had it serviced every year since to...