Bill Motor

Bill Validator Motor Defective

Otis · 400 Elevator

What does Bill Motor mean?

Indicates a defective motor within the bill validator. This motor is responsible for transporting and stacking banknotes, so its malfunction will prevent bill acceptance and processing.

Common Causes

  • A defective motor in the bill validator.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Verify DC supply voltage to the bill validator motor at its input terminals against the specified nominal value.

  2. 2

    Inspect motor power and signal cables for damage, wear, or loose connections between the controller and the motor.

  3. 3

    Carefully inspect the bill transport mechanism for any jammed banknotes, debris, or foreign objects obstructing the motor's operation.

  4. 4

    Check the bill validator's diagnostic interface or controller status for motor control signals, driver fault indicators, or specific sub-fault codes.

Browse all codes in this manual (41)
Verified technical data. Last updated: March 2026

Related Faults