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I would not advise underfloor heating under a parquet floor, or any 'real' wood floor.

There should be three to the transformer, Live, Neutral, Earth, and two to the fan Live, Neutral. Mine also included a light (it was above the shower), and therefore there were four to the fan, two for the light and two for the fan. The only difficulty I had was removing the whole lot...

"From what I’ve read online it seems like the cracks could be a result of shrinkage caused by the change in heating behaviour, though I would welcome advice on any of the issues above." Given 'hairline cracks', I'd tend to agree with the above comment. As for the greasy trails on the...

Yes, I did the same myself a few weeks ago. A straight replacement of an existing part, therefore no issues with part p AFAIK. BUT, if you have any doubts whatsoever, do not do it. Water and Electricity do not mix..... ;-)

Reporting back...... Well problem is with Drayton Valve Actuator, continuity through the orange and grey regardless of whether the valve is opened or closed. Sorted.... :-) After removing and dismantling actuator; well I had to try......didn't I; the microswitch on the actuator was...

Hi Thanks... Is it significant that the Drayton is on the Central Heating circuit and the Honeywell on the Hot Water circuit? Yes......I had noticed how expensive the Honeywell is to replace, but I did read on another thread how a guy replaced the microswitch in one, for just a few...

Hi, sorry, I was looking for some confirmation that I was on the right track, either that or suggestions of what else might be causing the Pump always on scenario. Regards Graham

That's the job of the day today...... Check for continuity across the grey/orange when the valve(s) is closed. For info the valves do appear to open and close appropriately. I am currently assuming that a microswitch may be stuck? If I get continuity, I will (on Monday) remove the...

No, a troll is just someone who is trying to create trouble, in short, to wind people up for kicks. As the saying goes, 'don't feed the trolls', better to ignore them.

Hi Long story ;-) Glowworm Micron 50ff system, and yes I have already changed out the motherboard.... a genuine new replacement, procured at great expense, and it made no difference. :-( Everything is working, timers, thermostats, rads hot when supposed to be, water hot when...