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AIR PURIFYING lamp 2-time flash - Circuit

AIR PURIFYING lamp 2-time flash — Air purifying power control circuit error

Mitsubishi Electric · MSZ-FH Air Conditioners

What does AIR PURIFYING lamp 2-time flash - Circuit mean?

The AIR PURIFYING lamp flashes two times, indicating that the AIR PURIFYING power control circuit on the indoor electronic control P.C. board is out of order.

Common Causes

  • Indoor electronic control P.C. board malfunction
  • AIR PURIFYING power control circuit damage

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

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

  2. 2

    Follow the 'Check of AIR PURIFYING power' procedure to verify the issue (Refer to section 10-6 in the manual).

  3. 3

    Contact an authorized service technician for further diagnosis and repair, as this typically requires replacing the indoor electronic control P.C. board.

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 - Normal TroubleshootingAIR PURIFYING lamp 2-time flash — AIR PURIFYING power control trouble (normal troubleshooting)
Source: Mitsubishi Electric MSZ-FH Air Conditioners
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