Hi, I\\\'ve got a Ravenheat rsf820/20 combi boiler. The timer keeps loosing it\\\'s information i.e all the programed on off times are gone and the clock time is wrong. Someone recomended replacing the clock.
Any ideas, I don\\\'t want to spend £40 replacing the clock and have the same problem.
Any ideas, I don\\\'t want to spend £40 replacing the clock and have the same problem.