EL
ErrorLib
Brands
||
  1. Home
  2. Otis
  3. 400 Elevator
  4. Bill Motor
About·Privacy·Terms

ErrorLib — Industrial Fault Code Library

Disclaimer: ErrorLib is an independent technical reference tool. While we aim for accuracy, always verify with the manufacturer’s official service manuals before performing maintenance on industrial equipment. ErrorLib is not affiliated with the brands listed.

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: April 2026

Related Faults

Bill JamBill JamBill SensorBill Sensor ErrorBill Stacker FullBill Stacker Full
Source: Otis 400 Elevator
Open Manual (Page 21)Search more codes in this manual