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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.

1066

BATTERY LOW

Kone · Elevator Control

What does 1066 mean?

The motor controller (codes 1066, 2066, 3066) has detected a low battery voltage condition. This indicates insufficient power supply to the drive system. The specific lift reaction is controller dependent.

Common Causes

  • Battery significantly discharged below operational threshold.
  • Aging battery with reduced capacity.
  • High current draw exceeding battery's instantaneous capability.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Measure the voltage of the motor controller's backup battery pack and compare against manufacturer specifications.

  2. 2

    Inspect all battery terminals, connectors, and associated cabling for corrosion, damage, or loose connections.

  3. 3

    Verify the output voltage and charging current from the dedicated battery charging circuit to the battery pack.

  4. 4

    Check the main input power supply voltage at the motor controller (drive system) terminals and confirm it is within specified limits.

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

Related Faults

01System Initialization Fault02System Communication Fault03Invalid Option Setting Fault
Source: Kone Elevator Control
Open Manual (Page 38)Search more codes in this manual