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UNIT and MODE lights temporarily on

UNIT and MODE lights temporarily on — Interface is resetting to factory settings

Mitsubishi Electric · Wi-Fi Interfaces

What does UNIT and MODE lights temporarily on mean?

When you hold the reset button for up to 15 seconds, both the UNIT and MODE lights will briefly turn on. This indicates that the Wi-Fi interface is being reset to its original factory settings, clearing all stored network data.

Common Causes

  • User manually initiated a factory reset.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Hold the reset button for up to 15 seconds.

  2. 2

    Observe the UNIT and MODE lights illuminating temporarily.

  3. 3

    Release the button once the UNIT light returns to its default flashing state.

  4. 4

    Re-pair the Wi-Fi interface to your network and account as new.

Browse all codes in this manual (19)
Verified technical data. Last updated: April 2026

Related Faults

App says 'unit was not found'App says 'unit was not found' — Wi-Fi Interface not communicating with home networkLED 1 flashingLED 1 flashing — WPS pairing in progress (MAC-558/559 models)MAC-558/559 LED 1 0.2 sec interval, LED 2 ON, LED 3 OFFMAC-558/559 LED 1 flashes 0.2 sec, LED 2 solid ON — WPS Activated (PIN)
Source: Mitsubishi Electric Wi-Fi Interfaces
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