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warning Honeywell

Error Code WIFI SIGNAL LOST

The Wi-Fi connection has been lost.

? What Causes This

The thermostat has moved out of range of the Wi-Fi network or the router is offline.

✓ How to Fix It

  1. Verify the Wi-Fi router is powered on and operating.
  2. Ensure the thermostat is within range of the Wi-Fi network.
  3. Check for obstructions between the thermostat and router.
  4. Restart the Wi-Fi router if necessary.

This error code appears in:

Honeywell T10 Smart Home Thermostat