If a Z-Wave thermostat is in malfunction or offline:

Additional troubleshooting steps for the thermostat may also be found within the Z-Wave Troubleshooting Wizard. For more information, see Z-Wave Troubleshooting Wizard.

1. Verify the device is powered on.
2. Verify the device is within range of the Z-Wave network.
3. Trigger the thermostat by manually changing the temperature on it.
4. Power off the device by removing it off the wall and removing the batteries, if possible. Wait a couple of minutes, and then power the device back on.
    
   Note: For the Smart Thermostat HD, power down the thermostat by powering off its respective breaker, then power the breaker back on to power on the thermostat.
    
   1. Once the device has been powered on, repeat step 3.
5. If the device is still in malfunction or offline, contact your service provider.

If a Z-Wave remote temperature sensor is in malfunction or offline: 

1. Activate the remote temperature sensor by either pressing the button or sliding the cover off of the sensor. The sensor's LED should illuminate.
2. Verify the remote temperature sensor has battery power. Replace the battery if needed.
   1. After replacing the battery, repeat step 1.
3. If the device is still in malfunction or offline, contact your service provider for further assistance.