nest 3rd generation

Hello, I have had a Nest 3rd Gen thermostat and heat link connected to my boiler, ATAG ic28, for several months now with no problem. I tried to change the temperature today and it is seemingly not sending the command to the boiler anymore. I have set the temp via the Nest app and also manually...

Hi all, Wonder if you could help. Im looking at replacing my Hive with a Nest so i can utilise Opentherm and boiler modulation. The Hive does not give it. Ive ruled out the Baxi USense as there is much too much work involved in hard wiring the thermostat to the control box. This leaves Nest...

Help with dual zone wiring - Nest thermostat UK Hi, I am following a diagram and installing the heatlink to the wiring centre. Seems all should be correct but it puzzles me that the brown wire of the danfoss HPA valves are going into the black wire of the thermostat but on my thermostats this...

I'm trying to replace an ancient Honeywell ST6400C programmer which controls our hot water and heating with a Nest Thermostat Heatlink. When I opened up the Honeywell, I was met with this wiring, which puzzles me greatly - it appears that there's only one wire leading to the central heating, but...

I have a Nest Thermostat 3rd Generation with Heatlink. I have recently purchased a Tado V3+ device. I have one cable on the Nest Heatlink connected to pin 4 and do not know where it should be going into Tado. I would appreciate it if someone could point me in the right direction.

Hello There Currently my old Honeywell has got a BOOST option for hot water. Not sure what does in reality!! Does boiler go over 70c to heat up the water tank or does it activate the Coil Immersion ?? There is this immersion to the water tank and not sure how that is controlled!?? So, how...

Hi About 2 months ago we had a neat fitted and UFH with its own thermostat. The CH did work when it was first installed but with it being summer it was left unused. Now the Nest does not appear to be firing up the boiler. The green dot is on the heat link which means they're connected. The UFH...

Hi, I currently have a wireless Center thermostat and receiver connected to my boiler, over the past month it keeps switching on and off and resetting itself I have tried to replace the batteries but no luck I have a feeling it was dropped and has damaged it. I would like to replace it with...

Hi all. Finally got my oil fired open vented system up and running which also heats the DHW cylinder. I have not bought a programmer yet as am thinking about a Nest thermostat. My requirements are to control the heating system and the hot water. My system is an oil fired worcester greenstar...

Hello all, been a frequent visitor here for lots of tips over the years, but this is my first question. I would like to upgrade my Drayton digistat 3 (central heating) and separate Drayton LP711 (hot water) controllers to a single Nest system that controls both CH+HW. System is open vented...

Hello I managed to replace our old Honeywell ST9420C and wireless thermostat with the Nest Learning Thermostat V3 using the following wiring layout: Honeywell-Nest N-N L-L, 2 & 5 4-3 3-6 Previously, on the old Honeywell programmer there were just 4 wires - N, L, 3, 4. This is working fine...

Image by A-J-P posted 6 Apr 2021 at 2:39 PMEF8D30D6-A19C-4199-AE01-91F196EF1A9D by A-J-P posted 6 Apr 2021 at 2:39 PMB3851C9F-408D-45A1-AC33-10150AE47EBE by A-J-P posted 6 Apr 2021 at 2:39 PM1DF1C3F7-7CDF-44BA-817D-CC6F02558549 by A-J-P posted 6 Apr 2021 at 2:39 PMImage by A-J-P posted 6 Apr...

Hi. So Combi Boiler Heating type: Water Underfloor heating, Only one Zone. Nest type: Nest Thermostat E (Images For Reference) Just received the Nest Thermostat E and trying to replace it instead of the OLD Thermostat, but I am having some difficulties with connecting the underfloor heating as...

Hello everyone, My Drayton LP241 has started acting up so I've bought a Nest 3rd generation to replace it and the thermostat. I've searched the Internet for help with wiring and would appreciate it if someone could confirm or correct my workings out: LP N - Nest N LP L - Nest L LP 1 - Nest...

I want my new 3rd Gen. Nest to control both a heating zone and the boiler itself so that I can remotely switch it on/off. The heating is working fine (terminal 3 comes live as the heatlink calls for heat) but terminal 6 on the Heat Link is permanently live and does not switch when selecting Hot...

I have a Nest gen 3 Gas C/H system in a standard size semi. Up until a couple of days ago, the hot water and central heating worked fine. The schedule and app on phone triggered as should. Nothing has changed in the house whatsoever. The thermostat and the Heat-Link(receiver) are paired so I...

I have been spending a lot of time at home (due to the coronavirus epidemic), and I decided to take the plunge, learn something new and replaced my Danfoss TP9000 with a nest thermostat 3rd generation. After reading a lot of forum and posts online I was pretty confident that it would be easy...

Hi All, First time I've ever posted on a forum. I was wondering if anyone can help me please. I've had a new heating system installed for a couple of years now but have an issue with our underfloor heating, connected to a Nest thermostat, probably the wrong thermostat to use but this is the...

I currently have a Honeywell wireless thermostat and wired in timer. I want to change to a Nest thermostat. I’ve provided a photo. My question is, when I remove the cover from the blue box do I simply disconnect the timer and wireless receiver wires and then wire in the nest receiver or is it...

Two Nest 3rd generation units (PDF) need to be installed for dual zone central heating (but not hot water) with one in the living room (zone 1) and one in the hallway for rest of property (zone 2). The combi boiler is an Ideal Logic 35 which is wired as follows: I have situated both Nest...