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POWER lamp 6-time flash - Normal Troubleshooting

POWER lamp 6-time flash — Thermistor trouble in outdoor unit (normal troubleshooting)

Mitsubishi Electric · MSZ-FH Air Conditioners

What does POWER lamp 6-time flash - Normal Troubleshooting mean?

During normal operation troubleshooting, the POWER lamp flashes six times. This indicates a problem with a thermistor located in the outdoor unit.

Common Causes

  • Outdoor unit thermistor malfunction

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Refer to 'Check of outdoor thermistors' (further details may require an installer).

  2. 2

    Ensure outdoor unit connections are secure and free from damage.

  3. 3

    Contact an authorized service technician for 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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