Applicable Systems
WJ200
Symptoms
Door open lock detected 3 consecutive times; 50B relay ON fault
Possible Causes
- Door lock mechanism failure
- 50B relay stuck
- door lock contact bounce
Troubleshooting Steps
- Step 1: Check door lock mechanism
Verify the fault is resolved after completing this step. - Step 2: inspect 50B relay
Verify the fault is resolved after completing this step. - Step 3: verify door lock contacts
Verify the fault is resolved after completing this step.
How to Reset
Power cycle after repair
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Category: Elevator
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