thermostat wiring

Hello, I've bought the thermostat in the picture and have connected the 3 wires from my old thermostat. The thermostat turned on but it won't turn on the boiler. I have boiler board photo attached. Please help.

Hello, I've currently got an air to water heat pump being controlled via a Centaurplus c17 series 2 with Honeywell thermostats in every room. I'm looking to replace the Centaurplus with a Google Nest Learning Thermostat 3rd Generation. I'll attach photos of internal wiring diagrams and...

Hi all, Trying to replace my dead under floor heating thermostat and I'm struggling as the letters on the back differ. I understand where the live, neutral and two sensor wires go (assuming it doesn't matter which way around the sensor wires go in?) but I have no idea where I put the wire that...

I need some assistance understanding which wire from my current thermostat Myson MPRT which has two wires. There are no labels on this thermostat and I'm supposed to put the wires in the COM and NO connections. The MPRT instructions are no help either...

Hey folks looking for a bit of confirmation. I'm about to install a nest heatlink in my mother's house her boiler is up stairs so I'm trying to make life a bit easier by installing a nest thermostat. I'm intending on using 4 core flex cable can someone confirm If what I'm thinking is correct...

Hi there, I just moved house where there is an existing Nest thermostat set up on my combi boiler, although I am trying to install a Hive. Scratching my head a little bit translating the wiring from one to the other. Have a picture below of the current Nest set up, and the instructions from...

Hi I bought MH1823 TuYa Smart Wifi Thermostat and i'm wondering how to connect it to my boiler. Current thermostat wiring: Vitopend schema: I didnt check the cables inside the boiler, i'm not a professional just wondering if its possible. My current thermostat has only No and COM cables...

I'm trying to learn a few things while attempting to do some basic diagnosis of what may have caused a problem with my central heating. I have a Glowworm flexicom 15hx gas boiler for hot water and central heating, with a Drayton LP241 programmer/controller. These heat my hot water just fine...

Hi I'm new and I could do with some help if guys wouldn't mind. So my current boiler is a combine and it's running a single mechanical thermostat. This is a Honeywell unit I have just had new radiators fitted as the ones in my place was around 30 years old. As the guys was just about to leave...

I'm looking to replace my fixed boiler control unit with a wireless thermostat (so that i don't manually have to switch boiler on & off). Need some help in understanding how to rewire my existing control unit (Drayton LP111) with the wireless thermostat (Center BDR91). I've added all the images...

I am just looking for some simple information which I can't find online anywhere. I have an old RD532i boiler and TR2 thermostat. The wires between them are labelled F, 3 and 4. Can anyone tell me which of those three wires are the neutral, the live and the switched live? (I think that's what...

Anyone kmow anything about Salus iT500RX Receivers? My one is showing no power anymore and yet nothing has tripped on the board, which means it's not currently talking to my megaflow boiler. Any pointers? As probably guessed, I'm neither an electrician or plumber, lol! Cheers in advance

Using a cheap old skool Eberle manual thermostat for a few days (long story). My old broken thermostat had: * red into "L" * blue into "N" * yellow into "L1" (switched live?) Does anyone know where red/blue/yellow should go in the new thermostat please? (photo of wiring diagram below but I'm...

Hi all, Just get someone to double check my research into the wiring as planning to move to Hive (single channel). I have a Worcester 28i junior boiler with BR1) receiver (wall mounted - picture 1&2) & remote thermostat (BPS242RF) which is not working hence the heating system but still have...

Hi Looking for some advice....I have just purchased a Nest 3rd Gen and are looking to install myself. I have a Honeywell ST9400C programmer for heating and hot water positioned next to my oil fired Firebird Combi boiler. I also have a Honeywell room stat. I have photographed the existing...

Hey hey folks I’m hoping someone can help me out. I paid an electrician to come round and put in a new thermostat (hive) as part of a group of things I had done all at the same time. Only issue is that I can’t get the central heating to come on. When hive tries to switch on the heating.. I hear...

Hi, I need to connect BHT-002 smart thermostat to water/gas boiler. Unfortunately old thermostat was removed by previous owners and I have nothing to compare to. In the attached pictures of wires and Moes thermostat that I would like to install. could you please assist which cable should go...

I'm planning on replacing my existing danfoss tp4/5000 with one of the numerous WiFi thermostats available from China. There are a few different designs but the contacts are more or less the same. Just want to clarify the following will work. Attached is a picture of my current thermostat with...

I’m wanting to replace my original Honeywell thermostat for a WiFi one but I’m stuck on the wiring. I have a grey, earth, black (with brown sheath) and brown wire. Im told the new thermostat only requires a live and neutral, with a possibility of needing to bridge across 2 connectors. The old...

Our honeywell has stopped working boiler end We've been quoted a lot to have it replaced, small job clearly no interest. Thinking surely I can do this myself; - Wire in replacement - Conect to new wall thermostat I'm not interested in a smart router attached option. Cheers,,,,,Q