If you’re testing a radiant system, electric skirting board heating or a system with radiators, it typically takes a while before you can feel the floor, baseboard or radiators getting warm. Try waiting up to 30 minutes to see if they warm up. Select your thermostat below, then select the error code that you see on your thermostat for specific troubleshooting steps to fix the issue. An H155 error message on your thermostat says 'Your Heat Link went offline when the batteries were low'.

Google Nest brands Rexel UK Google Nest brands Rexel UK

The System Test will run for 35 minutes before automatically stopping. Select Keep Testingon your thermostat if needed, or restart testing by going to Settings Equipmenton your thermostat. Select Continueand then Test. The Nest Thermostat E’s Heat Link will normally be installed in the same spot as your old thermostat. The app will instruct you how to install the Heat Link with your current thermostat wiring. The GoogleNest Learning Thermostat is paired with the Heat Link right out of the box. If you have a Google Nest Thermostat E, scan the Heat Link’s QR code and follow the on-screen instructions to pair it. If your Nest thermostat display or Heat Link has been replaced, you can pair it again. Pairing during installation If your Nest Thermostat E display has been replaced with a new one, it will need to be connected to the app.The Nest Thermostat E exclusively uses a wireless Threadconnection to Heat Link. There is no way to directly wire it to the Heat Link.

Nest thermostat - Google Nest Help Install your Nest thermostat - Google Nest Help

We don’t recommend using Heat Link to manually control heating unless there is a problem, for example, if your Nest thermostat loses its connection with Heat Link. Make sure that your programmer isn’t interfering with boiler control:If you had a programmer before installing the Google Nest Learning Thermostat, it’s important that the heating channel is disabled so that it doesn’t interfere with heating. An H152 error message on your thermostat says 'The power to this thermostat is off'. In addition, the Heat Link's status light will be yellow when it’s disconnected from your thermostat. Tip: Some of the installation instructions are different, depending on the thermostat model. If you’re not sure which model you have, go to our article about How to tell which Nest thermostat you have. Determine if your system is compatibleEach Nest thermostat model comes with a Heat Link designed specifically for that model. Here’s what the different Heat Link models look like: Nest Thermostat E Remote control – Change the temperature and control your hot water tank from anywhere using your mobile, tablet or laptop. AutoSchedule – Just turn it up and down. It learns the temperatures you like and creates a schedule for you. If your thermostat is mounted on a stand (not the wall), try moving it a bit closer to where your Heat Link is installed. We recommend professional installation for a 3rd- or 2nd-gen Nest Learning Thermostat, but you should be able to install a Nest Thermostat E yourself, depending on your system.

Nest Learning thermostat, 2nd generation, silver, remote

If the test fails, move your thermostat again and re-test. Sometimes moving your thermostat a few centimetres can make a big difference. Note: Press the Heat Link's button again to turn off heating (press twice forNest Thermostat E). Find your error Caution:It's important to protect you, your system and your thermostat. Turn off the power to your system at the fuse box before exposing or adjusting any wiring.No responsibility is taken for the correctness of this information. The listed offers do not constitute legally binding advertising claims of the merchants.