What does 51 mean?

A stop limit has been activated, preventing further movement in a particular direction. This can be due to the limit switch being physically triggered, a break in its wiring, or a failure of the limit switch itself, requiring investigation.

• Stop limit activated
• Break in the limit switch wiring
• Limit switch has failed

Click steps to track your progress.

1. 1

   Attempt to run the hoist in the opposite direction

2. 2

   Check and repair the limit switch wiring connections

3. 3

   Check or replace the limit switch