Applicable Systems
SKY-2
Symptoms
The elevator reports a deceleration limit fault. The slow-down limit switch is not functioning at the terminal floor.
Possible Causes
- Deceleration limit switch misadjusted
- Switch contacts worn or oxidized
- Switch cam or actuator damaged
Troubleshooting Steps
- Step 1: Verify the deceleration limit switch adjustment
Switch triggers at the correct position - Step 2: Test switch contact operation
Contacts make and break correctly - Step 3: Inspect the switch cam and actuator
Components are intact and aligned
How to Reset
To reset: Repair the deceleration limit switch, then reset the controller.
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Source: Otis Elevator Service Manual, Otis Worldwide Corporation
Category: Elevator
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