ERR Orange ON, NET Green OFF — Server and indoor unit connection failed

What does ERR ON NET OFF (Server Fail, Indoor Fail) mean?

Both the connection to the Mitsubishi Electric server and the connection to the indoor air conditioner unit have failed. This indicates a complete communication breakdown.

• Complete network communication breakdown
• Indoor unit not powered or not responding to the interface
• Mitsubishi Electric server is offline
• Wi-Fi interface malfunction

Click steps to track your progress.

1. 1

   Check your Router's internet connection status and ensure it's functional.

2. 2

   Verify the indoor unit is powered on and functioning correctly.

3. 3

   Push the RESET Button on the Wi-Fi interface for more than 15 seconds to retry pairing.

4. 4

   Consult your dealer if both connections continue to fail.