Recent content by skim123

I checked the pump again today on my return from work, it actually wasn't going off, so a little red herring in my description. It had been going off before when the problem was more intermittent. Thanks everyone for the valuable info, I tested & replaced the head on the heating zone valve and...

Yes, I can only think they were either clueless or didn't want the job. One said it must be wired up wrong, but if that was the case it's been wired wrong for 26 years?? Looks like there are good clued up people here though. Thanks everyone.

Thanks everyone, certainly makes sense, I'll check it out.

Thanks Terry, they do move when the thermostat is adjusted though, but I understand where you are coming from as it's the motorised valve that sends the signal for the boiler to fire up isn't it? Are you saying that it can be sending the signal even though the valve is in the off position and...

Hi, I have a Glow Worm Ultimate 50FF which is on constantly. This setup has been running ok for the last 26 years With the Programmer on:- Both motorised valves move on/off when thermostat for both water and heating are adjusted - so appears ok The House/hot water heats up & then when at temp...