Recent content by Jim1138

I think I understand, so could possibly put the HW on a simple clock and leave existing programmer for CH. Look at whether the HW schedule could be done at off peak. I'm on a fixed tariff until March. Couldn't change supplier last time, and my meter is an old analogue type. I live in an...

Hi @Agile, thanks for your reply, very helpful and informative. Yep, takes around 1.5 hrs to start to feel the warmth on the floor, from a cold start (i.e. not previously heated in last 24 hours). I don't generally have the CH on, can't afford to. I've a budget of 1hr hot water max. per day...

Hi, Thanks for the replies. I swapped out the fuse (T4AH250V) to the wiring board and whilst that seems to have got me somewhere - the green light to one of the red grundfos pumps comes on now, the programmer is still off so I'm going to assume it's toast and needs replacing by a compentent...

Oh, and daft follow up question... would this be a job for a plumber with electrical certs or an electrician with plumbing certs ?

Hi, I appear to have lost power to my programmer (Honeywell ST699) after one of my wall thermostats got knocked clean off the wall and something went pop. I'm hoping it's the fuse in the wiring board that's blown but I've none at home as yet to test with and my father, who's on holiday, has my...