Hi Guys
Having problems locating fault on Vaillant 242. It ignites on hot water perfectly, but when on CH it ignites for 10 or so secs, then fails. Flame is fine, water pressure fine.
All help appreciated.
Having problems locating fault on Vaillant 242. It ignites on hot water perfectly, but when on CH it ignites for 10 or so secs, then fails. Flame is fine, water pressure fine.
All help appreciated.