CodeRegistry
Brands
  1. Home
  2. Mitsubishi Electric
  3. MSZ-AP Air Conditioners
  4. Mist Discharge
About·Privacy·Terms

CodeRegistry — Your global library for technical solutions.

For your safety: always follow the equipment manufacturer’s official manuals. CodeRegistry is an independent help site and is not affiliated with the brands listed here.

Mist Discharge

Mist discharged from indoor unit air outlet - Rapid cooling of moisture

Mitsubishi Electric · MSZ-AP Air Conditioners

What does Mist Discharge mean?

Visible mist or vapor is coming out of the indoor unit's air outlet. This occurs when the cool air from the unit rapidly cools moisture in the room, causing it to condense into visible mist.

Common Causes

  • High humidity levels in the room combined with the rapid cooling effect of the air conditioner.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    This is a normal phenomenon and is not a malfunction of the air conditioner.

  2. 2

    Ensure proper ventilation in the room if high humidity is a recurring issue.

  3. 3

    Continue normal operation; the mist typically subsides as humidity levels in the air adjust.

Browse all codes in this manual (87)
Verified technical data. Last updated: April 2026

Related Faults

3 Min Restart DelayUnit cannot be operated for about 3 minutes after restart - Microprocessor protection3 Short Beeps3 short beeps from indoor unit - Weekly timer setting failedAP Mode activatedNET and MODE LEDs flashing (every 5 seconds) - Access Point Mode activated
Source: Mitsubishi Electric MSZ-AP Air Conditioners
Open Manual (Page 17)Search more codes in this manual