Experiencing issues with the LED lights on your thermostat heat link in the UK? A small number of customers have experienced an issue where the LED light on their heat link doesn't light up and they can't control heating or hot water. This only applies to 3rd gen Nest Learning Thermostats. If this is you, we'd like to apologize for the inconvenience and solve this for you as soon as possible. The fastest way to get help is to visit our partner BOXT's booking form. Once you have submitted the form, BOXT will reach out to you within 2-3 days to arrange a service visit to get you up and running again. When filling out the BOXT form, a case number will be pre-populated for you.

Nest thermostat Safety Temperatures

Safety Temperatures can prevent your home from going below a certain temperature by turning your heating on when the set limits are reached. This helps to ensure that your pipes won't freeze or that your home won't become damaged by excessive cold. Your Nest Thermostat will follow your Safety Temperature even if it's set to Off or Eco Temperatures, or your home is set to Away.

Safety Temperatures are great for helping to protect a second home if you have one. They can prevent the pipes from freezing while your home is unoccupied, even if the thermostat has been left in Off mode or doesn't have a heating schedule. You'll never have to worry whether you've set the thermostat correctly before you leave and, as long as your Nest thermostat is online, you can check your home's temperature from anywhere with the Nest app.

A Safety Temperature is different from the Eco Temperature set during thermostat setup. To learn more about Eco Temperatures, please follow the link below:

Learn how Eco Temperature works on the Nest thermostat

Safety Temperature Notifications

If the room temperature drops below the set Safety Temperature, your Nest thermostat will automatically start heating. You'll receive a push notification on your phone or tablet, as well as a message in the Nest app. Once the temperature has returned to a normal level, another notification will let you know.

Important: Notifications about Safety Temperatures rely on an active Wi-Fi and Internet connection in your home at the time of the notification. If your Wi-Fi network is down when the Safety Temperature is reached, you will not receive the notification. Your thermostat will continue to heat while your home Wi-Fi network is offline.

How to set Safety Temperatures

The Nest thermostat's default heating Safety Temperature is 4ºC/40ºF to prevent your home from freezing. You can set the Safety Temperature on your thermostat or with the Nest app:

On your thermostat

  1. Press the thermostat’s display to bring up the Quick View menu.
  2. Select Settings Nest settings icon.
  3. Choose Safety Temp.
  4. Turn the ring to change the temperature and press the ring to confirm your change.

Note: You can disable Safety Temperature by turning the dial to off when choosing a temperature.

  1. Choose Done.

With the Nest app

  1. Select your thermostat.
  2. Tap the Settings icon Nest settings icon.
  3. Tap Equipment.
  4. Tap Safety Temperature.
  5. Drag the slider to your desired Safety Temperature.
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