Applicable Systems
WJ200
Symptoms
50B relay failed to energize properly
Possible Causes
- 50B relay coil failure
- relay contact degradation
- control circuit fault
Troubleshooting Steps
- Step 1: Check 50B relay coil resistance
Verify the fault is resolved after completing this step. - Step 2: inspect contacts
Verify the fault is resolved after completing this step. - Step 3: verify control circuit
Verify the fault is resolved after completing this step. - Step 4: replace relay if faulty
Verify the fault is resolved after completing this step.
How to Reset
Power cycle; replace relay if needed
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Category: Elevator
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