18

Pothole Guard Fault

Kone · Elevator Control

What does 18 mean?

A fault has been detected in the pothole guard system, compromising its ability to operate correctly. This fault disables both lifting and driving functions for safety.

Common Causes

  • Pothole guard sensor malfunction or system failure.
  • Pothole guard circuit open or shorted.
  • Mechanical damage preventing pothole guard deployment or retraction.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Inspect the pothole guard mechanism for physical obstructions, damage, or excessive wear that might prevent its free movement or proper deployment/retraction.

  2. 2

    Check all electrical wiring and connections to the pothole guard sensors and actuators for looseness, damage, or corrosion.

  3. 3

    Verify the status of the pothole guard position sensors via the Kone Kone Elevator Control's diagnostic interface or I/O status screen, confirming their accurate state.

  4. 4

    Measure the supply voltage at the pothole guard actuator terminals to ensure it matches the specified nominal voltage according to the wiring diagrams.

Browse all codes in this manual (60)
Verified technical data. Last updated: March 2026

Related Faults