Otis · 400 Elevator
Indicates a bill sensor error within the bill validator. This affects the detection and validation of banknotes, potentially causing bills to be rejected or miscounted.
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Verify the input power supply voltage to the bill validator module is within specified operational limits.
Inspect all data and power cabling between the elevator control unit and the bill validator, including internal connections to the bill sensor, for damage or loose connections.
Check the bill feed path and the bill sensor aperture for any physical obstructions, debris, or excessive dirt, and clean thoroughly as required.
Verify the bill validator's configuration parameters and sensor calibration settings within the Otis 400 elevator's control system or diagnostic tool.