Applicable Systems
SKY-2
Symptoms
The elevator reports a governor overspeed trip. The speed governor has detected an overspeed condition.
Possible Causes
- Car speed exceeding the governor trip setpoint
- Governor calibration drift
- Governor rope slipping on the sheave
Troubleshooting Steps
- Step 1: Verify the governor trip speed setting
Setting matches the car specification - Step 2: Check governor rope condition and tension
Rope is in good condition with proper tension - Step 3: Test the governor function with a speed test
Governor trips at the correct speed
How to Reset
To reset: Reset the governor trip mechanism, then reset the controller.
Source: Otis Elevator Service Manual, Otis Worldwide Corporation
Category: Elevator