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RUN light OFF

RUN light OFF - Indoor air inlet panel open

MHI · Air Conditioning

What does RUN light OFF mean?

The indoor air inlet panel is detected as open. For safety and proper operation, this panel needs to be securely closed.

Common Causes

  • Indoor air inlet panel open.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Turn off the air conditioner at the main power supply.

  2. 2

    Ensure the indoor air inlet panel is fully closed and latched.

  3. 3

    Restart the air conditioner and check if the error clears. If not, contact a service technician.

Browse all codes in this manual (124)
Verified technical data. Last updated: April 2026

Related Faults

00Outdoor Board LED only green lights up after startup - No outdoor unit of address 0 / Remote controller transmission wire open1OPERATION INDICATOR lamp blinks 1 time (Pattern A) - Indoor/outdoor unit communication error (Transmitting error - Outdoor unit)14OPERATION INDICATOR lamp blinks 14 times (Pattern A) - Other errors
Source: MHI Air Conditioning
Open Manual (Page 38)Search more codes in this manual