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F23

F23 (25 LED flashes) - Overcurrent protection for single-phase of the compressor

Haier · Ductless Split Air Conditioners

What does F23 mean?

The outdoor unit's LED1 flashes twenty-five times, signaling an overcurrent protection activation specifically for the single-phase operation of the compressor.

Common Causes

  • Compressor startup issues
  • Power supply imbalance
  • Short circuit in the compressor or its wiring
  • Faulty compressor

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Immediately turn off the air conditioner at its main power switch or circuit breaker.

  2. 2

    Wait for at least 15 minutes before attempting to power the unit back on.

  3. 3

    Check the circuit breaker panel to see if the AC's breaker has tripped; reset it if it has.

  4. 4

    If the problem reoccurs, contact a qualified electrician or AC technician.

Browse all codes in this manual (27)
Verified technical data. Last updated: April 2026

Related Faults

Condensate at air outletCondensate water forming at the air outletCondensate drain issueCondensate water not draining correctlyCondensate on louverCondensate water forming on vertical louver
Source: Haier Ductless Split Air Conditioners
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