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RUN light blinks slowly (1.5 sec ON, 0.5 sec OFF) Dry

RUN light blinks slowly — Airflow not blown out when starting DRY operation

MHI · Air Conditioning

What does RUN light blinks slowly (1.5 sec ON, 0.5 sec OFF) Dry mean?

The RUN light blinks slowly (1.5 seconds on, 0.5 seconds off) when starting the DRY operation. This indicates the indoor fan may temporarily stop to prevent re-evaporation of dehumidified moisture and to save energy, which is normal behavior.

Common Causes

  • Indoor fan temporarily stopped to prevent re-evaporation of moisture during DRY mode
  • Indoor fan temporarily stopped to save energy during DRY mode

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Wait for a few minutes; the indoor fan will resume operation automatically when needed.

  2. 2

    Ensure the air filter is clean to allow for efficient dehumidification.

  3. 3

    Confirm that the unit is indeed set to DRY mode.

  4. 4

    Check that the room temperature is within the operable range for DRY mode.

  5. 5

    If the fan remains off for an unusually long time, contact your dealer.

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

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Source: MHI Air Conditioning
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