Recent content by JAD

No, but I have the old CM907 next to the new CM927 and they are giving different readings, which is what got me perplexed. However, I think they are settling down as the day progresses. Perhaps handling the new unit while programming it heated it up? Something that doesn't happen when...

Thank you everybody. I've fitted the CM927 as suggested and it seems to be working very nicely, although I am a bit dubious about the accuracy of the current temperature showing? Perhaps I can recalibrate this if it turns out to be a couple of degrees out? I had already wired it up with both...

I am just about to change my CM907 with a CM927 wireless unit. For various reasons, I want to place the receiver on the wall in my hallway where the CM907 is now situated. I've got 3 wires running from my Worcester 35CDi Combi to the CM907, with only 2 in use for now. The 3rd wire is safely...

I was brave, held my breath, twisted hard anti-clockwise and bingo! It unscrewed with no problem. It doesn't look like it was the cause of the leak but I will use PTFE tape (unlike the cowboy who fitted it!) when I put it back on. Thanks for your advice. jad

I would like to remove this shower outlet, so I can see if it is the cause of my leak behind the tiles? I can't see how to? There is no grub screw and no rear access. Does anybody have any ideas? It came with my Roman shower and is made by either Sirrus or Bristan (which might be the same...

Thanks

I am currently improving some shocking wiring for lighting and an extractor fan in my bathroom. (Done 1 year ago by rogue traders!) There is a 3 core + Earth cable running to the fan. L, Ls and N. The fan is double insulated so earth not needed. My question is 'am I good to simply put the...

Thanks for that last snippet Whitespirit66 and thank you JohnD. It appears we have the mid position 3 port valve and all my tinkerings have worked out as I hoped - independent HW & CH and CH controlled by a fancy room stat.

MAGIC! I followed your advice Whitespirit66 and discovered that the system is fully pumped! So took the timer off and removed the link from the back to make it suit the pumped system and hey presto the HW and CH seem to operate independently. Interestingly the pipes coming out of the boiler...

To be honest, I'm talking about my Ma's heating and it will be a couple of days before I can go and check for valves etcetera. I'm fairly sure that its a fully pumped system. If this is the case, what sort of motorised valve will allow HW and CH/HW options only? Perhaps it is simply that the...

Thank you for your information JohnD, I didn't realise there was a switch on the back. I haven't had a chance to take the programmer off to check the setting but I see from looking on-line that there is such a switch on my model (if its identical to the SM2). If its set to 'gravity' (as seems...

I have recently replaced an old analogue room stat with a programmable Honeywell CM907 on a standard open vented fully pumped central heating/hot water system. My plan was to set my British Gas EMP2 timer so that the CH was on 24hrs (letting the CM907 switch the heating on and off) and leave...

Thank you. I'll give that a go.