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No restart after power cut

Air conditioner does not restart immediately after a power cut

MHI · Air Conditioning

What does No restart after power cut mean?

After a power cut, the air conditioner does not restart automatically even when power is restored. This happens if the auto restart function is not enabled on your unit.

Common Causes

  • Auto restart function is not set or enabled
  • Power failure or blown fuse

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Use the remote control to manually start the air conditioner again.

  2. 2

    Check your unit's settings to ensure the auto restart function is enabled if you want automatic restarts after power outages.

  3. 3

    Verify that the circuit breaker for the air conditioner has not tripped during the power cut.

  4. 4

    If the remote control is unresponsive, check its batteries and line of sight to the unit.

  5. 5

    If the unit still does not respond, ensure power has been fully restored to your home.

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
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