Having worked fine for a couple of years my Honeywell Timer now only allows Hot water OR Heating not both. If, say, I have water on then (if setting manually) the green light on the CH will come on but there is no audible click and the heating doesn't come on. Vice versa if I have the Heating on and try to put water on as well. If both are timed then same thing happens ... if one is on the other won't come on so temporary solution is to program them to come on at different times. I don't know if the problem is with the timer or another part of the system. Any help appreciated.
