HI
Inventor Humidity Above Measurement Range or Sensor Saturation

Dehumidifier displays HI humidity and may not control properly

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Possible Causes

Extremely high humidity environment, Humidity sensor saturated with moisture, Faulty humidity sensor module, Sensor wiring issue

How to Fix / Troubleshooting

Safety: Ensure the unit is on a stable, dry surface away from direct water spray.

  • Ventilation: Improve room ventilation or reduce moisture sources (e.g., boiling water, open bathroom doors) to bring humidity into a normal range.
  • Dry the sensor: Turn the unit off and allow it to sit in a dry environment for several hours. In some cases, running the fan-only mode (if available) can help dry the sensor.
  • Inspect sensor: Access the humidity sensor and check for condensation or corrosion. Clean gently if needed.
  • Replace humidity sensor: If HI persists in normal conditions, replace the humidity sensor module.
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Repair Difficulty

Easy 2/5

Required Part

Humidity Sensor Module
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