H1
Whynter
Humidity Sensor Calibration or Range Error
Dehumidifier displays H1 and humidity reading seems stuck at 20% or 30%
Advertisements
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.
Advertisements
Possible Causes
Humidity sensor out of calibration, Sensor contaminated by dust or chemical vapors, Faulty humidity sensor module, Control board misinterpreting sensor signal
How to Fix / Troubleshooting
Safety first: Unplug the unit before accessing the control panel or sensor.
Steps to resolve H1:
- Verify with external hygrometer: Use a separate humidity meter to compare readings. If the Whynter unit shows an obviously incorrect value, suspect the sensor.
- Clean sensor area: Access the intake grille or control panel where the humidity sensor is located. Use compressed air to gently blow away dust.
- Power reset: Unplug for 10 minutes, then plug back in and recheck the reading.
- Sensor replacement: If readings remain inaccurate or H1 persists, the humidity sensor module likely needs replacement with a compatible Whynter part.
Note: Some models may require a service mode or factory calibration procedure after sensor replacement; consult service documentation.
Advertisements
Repair Difficulty
Medium
3/5
Required Part
Humidity Sensor
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements