Hi there, Have an old Oil Myson boiler that works fine, barring the mechanical timer on the front. Timer makes a sound but isn't going around so left using boiler manually. Any ideas how to fix the timer? Pic of boiler : Alternatively could I fit this fused timer where the current fused switch is: https://www.screwfix.com/p/greenbro...ay-fused-digital-timer-spur-switch-230v/7643g set the time on that and leave the boiler set to continuous all the time? Pic of fused switch above boiler: Just worried the switch cutting the power while boiler is on could cause some kind of problem as when you switch it to off a fan sound runs for a few minutes after. Any help much appreciated