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Red 5 Flashes, Green 2 Flashes

Red 5 Flashes, Green 2 Flashes (Single System) — IPM Protection

Fujitsu · Air Conditioners

What does Red 5 Flashes, Green 2 Flashes mean?

The red LED flashes five times and the green LED flashes two times on the indoor unit. This indicates that the Intelligent Power Module (IPM) protection circuit has activated, usually due to an internal electrical fault or stress.

Common Causes

  • Overcurrent or short circuit in the inverter module.
  • Overheating of the IPM due to insufficient cooling or heavy load.
  • Faulty IPM component.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Turn off the power supply to the air conditioner at the circuit breaker.

  2. 2

    Wait for 5-10 minutes to allow the unit to cool down and reset.

  3. 3

    Restore power and attempt to restart the unit.

  4. 4

    If the IPM protection error persists, this indicates a serious internal fault requiring a professional technician.

Browse all codes in this manual (60)
Verified technical data. Last updated: April 2026

Related Faults

AFM Filter Error (AUY, ABY & AWY)Red Blinks, Green 12 Pulses, Yellow Off (AUY, ABY & AWY) — Active Filter Module ErrorAir Sensor Closed (AUY, ABY & AWY)Red 2 Pulses, Green Blinks, Yellow Blinks (AUY, ABY & AWY) — Air Sensor Closed Circuit (Short)Air Sensor Open (AUY, ABY & AWY)Red 2 Pulses, Green Blinks, Yellow Off (AUY, ABY & AWY) — Air Sensor Open Circuit
Source: Fujitsu Air Conditioners
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