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Mitsubishi Electric · Split air conditioners · Mitsubishi Electric MSZ-AP (wall-mounted split, R32)

3 blinksIndoor fan motor

Name in the manufacturer's documentation (service manual): Indoor fan motor[1]

In plain words (editorial)

Indoor fan motor problem: the fan does not send its speed feedback signal. The service manual first checks for foreign matter that interferes with the fan's rotation.

When to call a service technician: Contact an authorised Mitsubishi Electric service technician.

✎ editorial – written from the cited sources, not a manufacturer statement. Status: draft.

The Polish page has more detail (plain-language explanation, safe checks, guides): Read in Polish →

Sources

Every statement has a footnote to the document and PDF page. “Quote verified” means the quote was found automatically in the text of that page.

  1. [1] Mitsubishi Electric – Service Manual: Indoor unit MSZ-AP25VG(K) … MSZ-AP71VG(K) (OBH788 REVISED EDITION-B) (OBH788 REVISED EDITION-B) , p. 34 official manufacturer document quote verified 3-time blink
  2. [2] Mitsubishi Electric – Service Manual: Indoor unit MSZ-AP25VG(K) … MSZ-AP71VG(K) (OBH788 REVISED EDITION-B) (OBH788 REVISED EDITION-B) , p. 34 official manufacturer document quote verified not emitted during the indoor fan operation.
  3. [3] Mitsubishi Electric – Service Manual: Indoor unit MSZ-AP25VG(K) … MSZ-AP71VG(K) (OBH788 REVISED EDITION-B) (OBH788 REVISED EDITION-B) , p. 36 official manufacturer document quote verified repeats "12-second ON and 30-second OFF" 3 times
  4. [4] Mitsubishi Electric – Service Manual: Indoor unit MSZ-AP25VG(K) … MSZ-AP71VG(K) (OBH788 REVISED EDITION-B) (OBH788 REVISED EDITION-B) , p. 36 official manufacturer document quote verified Remove the foreign matter and
  5. [5] Mitsubishi Electric – Service Manual: Indoor unit MSZ-AP25VG(K) … MSZ-AP71VG(K) (OBH788 REVISED EDITION-B) (OBH788 REVISED EDITION-B) , p. 36 official manufacturer document quote verified Replace the indoor fan motor.
  6. [6] Mitsubishi Electric – Service Manual: Indoor unit MSZ-AP25VG(K) … MSZ-AP71VG(K) (OBH788 REVISED EDITION-B) (OBH788 REVISED EDITION-B) , p. 36 official manufacturer document quote verified Pay enough attention to the high voltage on the fan motor connector CN211.