H1
Comfee
High Humidity or Sensor Calibration Error
Dehumidifier shows H1 and does not start the compressor; may indicate high humidity or sensor issue.
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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 humidity above measurable range, Faulty or miscalibrated humidity sensor, Condensation on sensor causing false readings, Main PCB firmware issue
How to Fix / Troubleshooting
Safety: Turn off and unplug before accessing internal parts.
- Verify environment: Use a separate hygrometer to confirm room humidity. If extremely high, allow the unit to run in continuous mode if possible.
- Dry sensor: If the unit has been off in a very damp room, moisture may condense on the sensor. Let the unit sit unplugged in a drier area for several hours.
- Clean and inspect sensor: Access the humidity sensor and clean gently. Check wiring and connector.
- Replace sensor: If H1 persists, install a new humidity sensor module.
- Firmware/board: Persistent H1 after sensor replacement may require main PCB replacement.
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Repair Difficulty
Medium
3/5
Required Part
Humidity Sensor Module
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