Boneco
Control Logic Instability / Sensor Feedback Issue
Humidifier turns on and off rapidly or cycles every few seconds
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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
Faulty humidity sensor giving unstable readings, Loose sensor wiring, Power supply instability on main PCB, Firmware glitch
How to Fix / Troubleshooting
Safety: Unplug before opening the unit.
Steps:
- Check power source: Avoid using long extension cords or power strips that may cause voltage drops. Plug directly into a stable outlet.
- Reset electronics: Unplug for 10–15 minutes to reset the microcontroller.
- Inspect humidity sensor: Locate the humidity sensor and ensure it is firmly connected and not covered by dust or moisture. Clean gently with a dry brush.
- Relocate unit: Avoid placing the humidifier directly under an air vent or near a heat source, which can cause rapid sensor fluctuations.
- If cycling persists: Replace the humidity sensor module. If that fails to resolve the issue, the main control PCB may need replacement.
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Repair Difficulty
Medium
3/5
Required Part
Humidity Sensor Module
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