Short circuit 77 / button stuck

KONE Elevator Medium Elevator

Model: LCE/V3F | Code: 0039

Applicable Systems
Kone Elevator

Symptoms

LCEBOPU board short circuit 77 button stuck

Possible Causes

  • 77U/N bypass button stuck on LCEBOPU board
  • button mechanical fault
  • button contact welding

Troubleshooting Steps

  1. Step 1: Check 77 bypass button on LCEBOPU board
    Verify the fault is resolved after completing this step.
  2. Step 2: verify button operation
    Verify the fault is resolved after completing this step.
  3. Step 3: release stuck button
    Verify the fault is resolved after completing this step.

How to Reset

Release button; power cycle

Related KONE Fault Codes

Source: baijiahao (KONE codes); doc88.com; docin.com

Category: Elevator