Kone Kone Elevator Error Code 0250

Kone Elevator Critical System

Model: Kone Elevator | Code: 0250

Applicable Systems
Kone Elevator

Symptoms

CPU fault. The main CPU board has a fault. The controller cannot operate.

Possible Causes

  • CPU hardware failure
  • Firmware crash or corruption
  • CPU watchdog timeout
  • CPU memory fault or corruption
  • CPU power supply fault

Troubleshooting Steps

  1. Step 1: Check the equipment status and fault indicators to confirm the active fault code
    Fault indicator or HMI displays code 0250 as active
  2. Step 2: Verify all electrical connections, wiring harnesses, and connector seating
    All connections secure, no corrosion, loose pins, or damaged wires
  3. Step 3: Check the system diagnostic buffer or event log for detailed fault information
    Diagnostic buffer shows the specific fault cause and timestamp
  4. Step 4: Verify power supply stability and environmental conditions
    Power supply stable, environment within specifications
  5. Step 5: Restart the equipment or power-cycle the control system
    Equipment restarts and enters normal operating state
  6. Step 6: Contact manufacturer support if the fault persists after all checks
    Support provides specific troubleshooting guidance

How to Reset

To reset: 1) Identify and fix the root cause described in the fault symptoms. 2) Press RESET on the HMI or controller, or power-cycle the equipment. 3) If the fault recurs, contact manufacturer service. Caution: Document the fault code and context before resetting.

Frequently Asked Questions

  • Q: What does fault code 0250 mean on the Kone Kone Elevator?

    Fault 0250 on the Kone Kone Elevator indicates: CPU fault. The main CPU board has a fault. The controller cannot operate. Refer to the equipment manual and manufacturer support for specific troubleshooting steps.

  • Q: Can I continue operating the equipment with fault 0250 active?

    No. The equipment has detected a fault condition and has taken protective action (typically stopping or derating). Continuing to operate without fixing the root cause may cause further damage. Always investigate and fix the fault before resuming operation.

Related Kone Fault Codes

Source: Kone Elevator Controller Manual, Kone Corporation Documentation

Category: Elevator