If you can’t control heating with your Google Nest thermostat or the app, the Heat Link and thermostat may be disconnected. You can press the Heat Link's button to turn heating on and off until the connection is restored.
|
Press the button on your Heat Link to manually turn on heating:
Press the button again to manually turn off heating (press twice for Nest Thermostat E). This way, you can stay comfortable while you troubleshoot connection problems. |
 |
 |
 |
|
Nest Thermostat E |
3rd generation |
2nd generation |
Keep in mind:
- Manual heat mode will continue to heat your home until you manually turn it off, even if you reconnect your thermostat.
- If your thermostat controls hot water, your hot water will also turn on when you turn on manual heating..
- When manual heating is on, your system won’t follow your regular schedule. It also won’t be able to follow other thermostat settings. For example, if you have an OpenTherm compatible system, manual heating mode will not allow your boiler to modulate water temperature..
- You can only turn on manual heating if Heat Link is disconnected from your thermostat. Otherwise, use your thermostat or the app to control heating.
How to tell if manual heating is on
|
|
Nest Thermostat E |
3rd generation |
2nd generation |
|
To check status: |
Press Heat Link’s button once and look at the heating light |
Heat Link’s heating light |
Heat Link’s status light |
|
If manual heating is on, the light will be: |
Solid green for 5 seconds Note: if the light pulses green, manual heating is not on. Your thermostat is connected, so there’s no need to turn on manual heating. |
Solid green |
Blinking yellow |
.
(if applicable) will automatically illuminate.
will automatically illuminate.Tip: If you see any other lights, colors, or blink patterns, visit the following article:
Troubleshooting Heat Link's connection
|
On your thermostat, you’ll see an error beginning with the In order to control your system with your Nest thermostat or |
 |
How to turn manual heating off
If your Heat Link is not connected to your thermostat, you can always press Heat Link’s button once (twice for Nest Thermostat E) to turn off manual heating.
If your Heat Link has reconnected to your thermostat, you have three options:
- Press your Heat Link’s button once (twice for Nest Thermostat E).
- Use your thermostat:
- The thermostat display will say MANUAL to confirm that manual heating is on.
- Turn the thermostat ring. A message will appear asking you to confirm that you want to turn off manual heat mode. Select Turn off.
- Use the Nest app:
- On the Nest app home screen, select your thermostat.
- The thermostat screen will say MANUAL. Tap MANUAL to end manual heating.
As long as your Heat Link is connected to your thermostat, turning off manual heating will return your thermostat to its usual temperature and hot water schedule.
Note: Once Heat Link has been reconnected to your thermostat, you won’t be able to turn on manual heating again unless it loses the connection.