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AIR PURIFYING lamp 2-time flash - Normal Troubleshooting

AIR PURIFYING lamp 2-time flash — AIR PURIFYING power control trouble (normal troubleshooting)

Mitsubishi Electric · MSZ-FH Air Conditioners

What does AIR PURIFYING lamp 2-time flash - Normal Troubleshooting mean?

During normal operation troubleshooting, the AIR PURIFYING lamp flashes two times. This indicates a problem with the AIR PURIFYING power control within the indoor unit.

Common Causes

  • Indoor unit AIR PURIFYING power control malfunction

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Refer to 10-6. 'Check of AIR PURIFYING power' (further details may require an installer).

  2. 2

    Ensure the unit's front panel is properly closed, as an open panel can interfere with operation.

  3. 3

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

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

Related Faults

3-minute delayCompressor does not restart immediately — 3-minute time delay activeAIR PURIFYING lamp 2-time flashAIR PURIFYING lamp flashes 2 times — Air purifying power supply issue or front panel not closedAIR PURIFYING lamp 2-time flash - CircuitAIR PURIFYING lamp 2-time flash — Air purifying power control circuit error
Source: Mitsubishi Electric MSZ-FH Air Conditioners
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