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The valve that is uncovered is bedroom one. (faulty stat) The wire that has blue tape on goes to the Faulty stat. Originally the house has had 2 core for stats(can see some snipped and replaced) The faulty stat has 2 core into the junction box, however at the stat its 3 core(hence my...

under floor heating 20201031_102705 by jimmybobfixer posted 31 Oct 2020 at 10:38 AM wiring for bedroom room stats and motorized valves 20201031_102758 by jimmybobfixer posted 31 Oct 2020 at 10:38 AM motorized valves for bedroom heating 20201031_102806 by jimmybobfixer posted 31 Oct 2020 at...

ill get a photo of the underfloor heating. there is a motorised valve for that there are 4 motorised valves upstairs (one for each radiator in bedrooms) one also upstairs for indirect? cylinder. There is a 1 motorized valve downstairs for the underfloor heating.

that was my first thought, and did attempt to look at wiring center. However it looks like **** in the wiring center. Ill post a pick maybe i am being too critical lol THe wiring for the stat in question has probably got a join in the attic somewhere.

ok lol The "Faulty" stat makes the motorized valve open permanently and request heat. Downstairs under floor heating does not seem to request heat from the boiler, so only works if the water is hot or the upstairs is requesting the boiler to heat up. (strange be cause the underfloor heating...

Bathroom rads only come on when CH is on. [ Yes i made the assumption the wiring would not work with rt200(even though it lights up ). For some reason the stats or wiring for the stats have been changed at some point. So do i just choose any SPST thermostat and it should work?

i am wondering if the upstairs stats have been upgraded at some point. There is evidence of old wiring. Also another strange thing all the bathroom rads are on with no trv's or control by room stats. Or maybe they are all controlled by the faulty room stat.

i do not know much about the history of the house. So unsure about the wiring.

4 stats and 4 zone valves (its got underfloor heat downstairs , working fine). The four stats control heating in the four bedrooms.

but , the stat has no control you cannot turn the rad off or on via the stat in question . (there are no trv's on any rads they are all controlled via room stats) i could bodge it by putting a trv on the rad but that's not how it supposed to work.

There are other rt200 stats in other rooms. They work correctly but are wired.differently. Working by jimmybobfixer posted 29 Oct 2020 at 7:52 PM

CH Thermostat issues Moved into a new house last month (10 year old new build) One of the room thermostats is not working correctly. (initially thought it was the motor in the zone valve.) However opened the thermostat up and there is no "SL" wire attached . All it has is brown,blue and...

faulty wired stat