Tube Sense

Changer Tube Sensor Error

Otis · 400 Elevator

What does Tube Sense mean?

Indicates a tube sensor error within the coin changer. This affects the proper detection, sorting, and dispensing of coins in the tubes, potentially causing miscounts or jams.

Common Causes

  • Malfunction of a coin tube sensor within the changer.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Inspect the coin tubes and the sensor's detection area for any physical obstructions, jammed coins, or accumulated debris that might interfere with sensing.

  2. 2

    Check all wiring and connectors associated with the tube sensor for secure connections, signs of wear, or damage.

  3. 3

    Measure the supply voltage to the coin changer module and the specific tube sensor, if separately powered, comparing against the nominal values specified in the electrical schematics.

  4. 4

    Verify the tube sensor's mounting, alignment, and cleanliness of its sensing surface to ensure proper coin detection.

  5. 5

    Verify the sensor's status and diagnostic readings in the system's HMI or service tool to confirm its signal output when coins are expected or absent.

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Verified technical data. Last updated: March 2026

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