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F27

F27 (7 LED flashes) - Compressor locked rotor or momentary stop

Haier · Ductless Split Air Conditioners

What does F27 mean?

The outdoor unit's LED1 flashes seven times, indicating that the compressor has either locked up or temporarily stopped functioning.

Common Causes

  • Mechanical issue with the compressor
  • Lack of refrigerant in the system
  • Electrical issue affecting the compressor
  • Temporary power surge or instability

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Turn off the AC unit at the main power supply immediately and wait at least 30 minutes.

  2. 2

    Ensure there are no obstructions around the outdoor unit that could hinder proper operation.

  3. 3

    Restart the unit. If the error reoccurs, contact a qualified 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
Open Manual (Page 44)Search more codes in this manual