01. Control input event or sensor trigger
The beeps are caused by repeated command input, sensor trigger, or intermittent receiver activity. Cooling may still work normally.
- Beep events are short and isolated.
- Cooling remains stable after each beep.
- No breaker trip or strong odor appears.
Solution: We verify input behavior and receiver response first, then stabilize the command path if needed.
Remarks: Replacing major parts too early is common when beeps are judged without operating pattern.