Applicable Systems
Kone Elevator
Symptoms
Door zone check circuit (486/443) did not energize during ACO/ACL
Possible Causes
- 486 or 443:1 or 443:2 relay did not energize in 2 consecutive runs
- relay fault
- timing issue
Troubleshooting Steps
- Step 1: Check 486 and 443 relay circuits
Verify the fault is resolved after completing this step. - Step 2: verify ACO/ACL operation
Verify the fault is resolved after completing this step. - Step 3: inspect relay contacts
Verify the fault is resolved after completing this step.
How to Reset
Power cycle or inspection mode
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Source: baijiahao (KONE codes); doc88.com; docin.com
Category: Elevator
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