thermostat

  1. mattg4321

    Room thermostat reading high

    I recently fitted a Heatmiser Neostat for a customer in their hall- to control their radiators throughout the house (70’s 4 bed medium sized detached). Quite bizarrely the thermostat is reading 3 or so degrees above the actual temperature when the lounge/hall door is open. Ie stat shows 22...
  2. JohnNN

    Correct wiring for programmable room thermostat

    Hello, I have a regular boiler doing room heating only, with a Drayton programmer (for time) + a Drayton dial stat (for temp). I've bought a Honeywell T3 programmable stat to set diff temps at diff times. Old Drayton stat (mains powered) had 3 wires (red, blue, yellow) + E (see pic) New...
  3. B

    Salus RT310RF thermostat

    My salus RT31RF thermostat will not turn on even with new batteries. Will I need to buy a.new one. It's 5 years old, is that how long they last
  4. A

    Central heating thermostat

    Hi all, my condenser boiler central heating has started to do strange things so I set about trying to diagnose the problem. When I got to the thermostat I found that there was no power to it, could anybody tell me where this is powered from please? It is an old system, almost 30 years old so in...
  5. J

    CH Thermostat indicator lit when turned off

    Hello I have a central heating system, with a Y plan layout. The neon indicator on the thermostat seems to be sometimes dimly lit / flickering even when the thermostat is turned off. I measure approx 50V AC across terminals 2&3 of the thermostat when it is happening. I have narrowed it down...
  6. A

    If one of the following smart TRVs will be launched, which one would you want?

    To be honest, we are a new smart thermostat and TRV manufacturer and are working hard to create our first thermostat, we want to make a product that users are loving and that is really useful to users, can you help give your feedback on these designs suggestions? Any help would be greatly...
  7. S

    Boiler failing to respond to thermostat and has to be restarted

    It has become a common occurrence that my boiler is failing to respond when the thermostat kicks in. I hear an audible click from the heatlink when thermostat is turned up but nothing else happens. Our heating programmer next to the water cylinder is set to continuous and all looks OK. The...
  8. D

    Hive mini with Remeha avanta exclusive - please help

    Hello, I'm in the process of changing my wired remeha thermostat with the wireless hive mini, I've had a look at the manual and believe I have installed this correctly however the thermostat doesn't seem to be talking to the boiler and I can't control my heating through it. Could you please...
  9. P

    Replace my ancient Honeywell mechanical thermostat with a Honeywell T3R

    I would like to replace my ancient Honeywell mechanical thermostat with a Honeywell T3R PROGRAMMABLE THERMOSTAT I have three wires in the old thermostat. Please see the first three photos. 1 Red 3 Yellow 2 Blue are these 1 Live 3 Live return (Switched) 2 Neutral Could I configure it as in...
  10. G

    I have electric panel heaters, and I want a thermostat with wifi app control.

    So as the title says, I have 3 panel heaters in my flat, but only one really needs the fine control i'm after, the other two rarely go on even in dead winter as i'm stingy and my flat is small. The heaters are mains connected (no plug sockets) so i'm looking for something that ideally will go...
  11. derekmay

    Smart thermostat wires

    Trying to install a smart thermostat, I have 4 wires red, yellow, blue and earth, And this smart meter wiring diagram baffles me. 1st photo old thermostat,
  12. R

    UFH Thermostat model help

    Hi, I'm looking for some help with an UFH thermostat that I can't find the model of. All I can see is that it's made by Rehau. Installed roughly 2008-09. I'm trying to set the schedule on the device but the symbols aren't obvious what they are trying to communicate so I want to find the manual...
  13. A

    Replacement thermostat / timer

    Hi. I have very old underfloor heating with thermostats. I'd like to replace the thermostats with timer/thermostats if possible. The current (very old) ones have 2 red cables, 2 black and an earth. One of the red cables is live all the time, the other live when the thermostat kicks in. It...
  14. Pretty Mouth

    Landlord thermostats?

    Customer lives in an old farmhouse, part of which was converted into 2 B&B apartments. The owner has had 2 additional zones added to the main house central heating system, a zone for each apartment. The plumber has done his bit, and installed zone valves onto the pipework, but not connected...
  15. L

    Reliable thermostat switch to "Open" at high temps ?

    For a roof top boiler enclosure that is really way too hot in this weather .Plan to have large vents at the bottom and to use a Room stat set up to run a 6 inch bathroom fan etc to come on when it hits 25 degrees inside. This morning it was reading 47 degrees inside ! Using the room stat in...
  16. dfreitag

    Heating Wiring Problem - cylinder thermostat not working

    Hi there, I've had 4 plumbers & 1 electrician look at my problem (seemingly without dedicating too much time unfortunately), spending more than £1000 already 😣, but none of them has found the issue to my problem - that's why I'm reaching out to you! I have the below set up 1x gas system...
  17. erergwerg

    Wiring check for thermostat

    Hello, I have a piece of equipment with a thermostat attached to the bottom to heat a tank. This has stopped working- the red light does not turn on and it no longer heats up. The thermostat still clicks when twisted. I have attached a photo - I have used a voltage tester to test if...
  18. W

    Wiring a new D2 thermostat?

  19. brixtonia

    Immersion Thermostat wire burns out

    I have a 4kW immersion heater in a thermalstore - very recently replaced by a plumber as the previous one was leaking. Supplied with a cotherm thermostat and a second pocket for a safety cutout into which the safety cutout from the previous immersion was fitted and seems to be working fine. I...
  20. Pretty Mouth

    Wireless UFH thermostat

    All of the UFH thermostats that I have ever fitted have had the air temperature sensor integrated into the hard-wired wall mounted programmer, with the floor temp sensor cable also connected directly to it. I have a small UFH job where the UFH will be the primary heat source, so an air sensor...
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