H1
Inventor
High Temperature Protection (Ambient or Coil)
Dehumidifier shows H1 and stops dehumidifying
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Room temperature above design limit, Blocked air intake or outlet, Failed fan motor causing poor cooling, Faulty high-temperature sensor
How to Fix / Troubleshooting
Safety: Unplug the unit and allow it to cool if it feels hot.
- Check ambient conditions: Ensure the room temperature is within the operating range listed on the rating label (typically below 35–40°C).
- Improve airflow: Move the unit away from walls and heat sources. Clean the air filter and both coils.
- Verify fan operation: Turn the unit on and confirm that the fan runs at all selected speeds. If not, troubleshoot and replace the fan motor or fan capacitor.
- Sensor inspection: Locate the high-temperature sensor (often on the discharge line or near the condenser). Check its attachment and wiring. Replace the high-temperature NTC sensor if defective.
- Persistent H1: If H1 continues under normal conditions, contact a technician to check for internal overheating or PCB faults.
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Repair Difficulty
Medium
3/5
Required Part
High-Temperature NTC Sensor
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