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Moisture on air outlet grills

Moisture on air outlet grills — Dripping due to high humidity

MHI · Air Conditioning

What does Moisture on air outlet grills mean?

If the air conditioner operates for an extended period in conditions of high humidity, moisture may condense on the air outlet grills and start dripping.

Common Causes

  • Long operation in a high humidity environment.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Reduce the humidity in the room if possible by closing windows and doors.

  2. 2

    Consider using the DRY operation mode to help reduce room humidity.

  3. 3

    Ensure the air filter is clean to maintain proper airflow and reduce condensation.

Browse all codes in this manual (124)
Verified technical data. Last updated: April 2026

Related Faults

00Outdoor Board LED only green lights up after startup - No outdoor unit of address 0 / Remote controller transmission wire open1OPERATION INDICATOR lamp blinks 1 time (Pattern A) - Indoor/outdoor unit communication error (Transmitting error - Outdoor unit)14OPERATION INDICATOR lamp blinks 14 times (Pattern A) - Other errors
Source: MHI Air Conditioning
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