103

Battery is draining

Kone · Elevator Control

What does 103 mean?

The battery is currently experiencing a discharge event. This is a warning only, indicating that power is being drawn from the battery.

Common Causes

  • Normal battery discharge during machine operation.
  • Unexpected discharge current when machine should be idle (parasitic load).
  • Charger not active or charging at an insufficient rate during operation.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Verify the presence and stability of the main AC power supply to the Kone Elevator Control system, ensuring no intermittent power loss.

  2. 2

    Measure the battery charging voltage and current at the battery terminals to confirm proper function of the charging circuit.

  3. 3

    Inspect battery terminals, wiring, and connections for any signs of corrosion, damage, or looseness.

  4. 4

    Check Kone Elevator Control system parameters related to battery management, such as charging setpoints and discharge thresholds, against manufacturer specifications.

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Verified technical data. Last updated: March 2026

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