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I've had a while now, but hesitate to use it, as I'm uncertain of accuracy. Checking C/h flow/ret temps, I was very unsure from the range of temps I got. And the temps didn't sit well with me. I had no other thermometer to do a comparison, so I'm left non the wiser. But I just had a feeling the...

Great, everything been covered now...cheers

Right ok! The landing is part their old terraced house extension. No loft hatch. So im doing initial look blind. I need to remove a few tiles, to check. Hopefully i can position flashing as close to the first tiles, below the ridge, to get more light. It may work great? Straight above top...

ive only got on position to work with. roof is half apex( dunno if thats correct name). pitched one side then gable end other. ill have to check direction....south yeh?

So that is true then? i read its best South facing? is it a massive detroment not doing this? Also is Rigid best? A comment i read saying, velux arnt very efficient, through me. i thought wow, i didnt expect that

What is best to buy? Web sites say conflicting things. Like Velux has poor light efficienvcy? As low as 5%?? That sounds crazy? Also it looks like Rigid is better than flexable? And Flat or Domed termination? Which is best? Also i just seen that Wicks sell a few sun tunnels also. Has...

What flashing is needed.for a pitched tiles.roof? Looks like double Roman or similar. Tile 16length x 13 width Universsl type - 6 to 120mm Tile type - 16 to 50mm What's that measurement?

Finally everything working. I didnt even bother with existing clock and stat, i removed them as im sure they were causing problems also. The link that caused all of this! ( L to Ch1 ) I removed it a few times but nothing went right until i changed clock etc. Although connections on clocks were...

Stem....thankyou for the effort youve put in to help out, much appreciated. And Johnmdc thankyou

Stem? Thankyou very much . I am a lazy reader! And I did read your post twice to get it to stick. All that said, you have explained excellent, and what I'm going to try first is a additional cable to stat The stat is just that? Not programmable. And it is hard wired. No wireless receiver. I...

Can anyone elaborate please

Therma TQX0073 (p5 stat) not showing up on google. But TQX0071 is everywhere!...typical. Probally my luck, plenty for sale but can't see about battery?? I hope your right about link Pbecause everything is straight forward which narrows down to simple fault. -Do you have any advice on the mains...

Well thanks again because I have booklet here and it's not in there. Limited info,!unless I'm missing some paper work. Because it has wifi or something and I have no info. When link gets removed . There is no display? Are you saying there should be? I know it has a sleep function as I went to...

I can't remember what happened when I removed Link? But don't you think it needs constant power? So you can check temp when its on a off cycle? Normally you have don't you. Thanks john

Wires on prog strip are L ,N , hw on (black), ch on (brown)

It says to fit link to ch1 and 2? I never did link to ch2 as we only have one room stat. Maybe it need to fit link to ch2 also?

Thankyou for your help. on the schematic it shows to fit link. Remove it and room stat looses power.

Does anyone think it could be simple? Like a missing link? There's no signal from prog to call for heat or satisfied. Only room stat controls call for heat. Swapped out prog and stat with known good ones, same issue. Cylinder wiring centre is plug and play for all the divertors. And there's...

Stelflow unvented cyl S plan Worcester Greenstar system compact Problem is the prog doesn't control the heating. Prog controls hw side fine. Heating only works via room stat. Stat operates divertor correctly and shuts boiler down. But try to control via programmer! It does nothing. One thing...