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POWER lamp 3-time flash - Normal Troubleshooting

POWER lamp 3-time flash — Indoor fan motor trouble (normal troubleshooting)

Mitsubishi Electric · MSZ-FH Air Conditioners

What does POWER lamp 3-time flash - Normal Troubleshooting mean?

During normal operation troubleshooting, the POWER lamp flashes three times. This indicates a problem with the indoor fan motor.

Common Causes

  • Indoor fan motor malfunction
  • Issue with fan motor wiring or control

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Refer to 10-6. 'Check of indoor fan motor' (further details may require an installer).

  2. 2

    Turn OFF the power supply to the unit for a few minutes, then turn it back ON.

  3. 3

    Contact an authorized service technician for further diagnosis and repair if the issue persists.

Browse all codes in this manual (41)
Verified technical data. Last updated: April 2026

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Source: Mitsubishi Electric MSZ-FH Air Conditioners
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