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9 817 - 818 Are Open
Up and down limit inputs (817=0 and 818=0) are both
open simultaneously.
Cause
Troubleshooting
1. Check the condition of the pre-limit switches. Press UP left
arrow in the main PCB and locate 817-818. Star indication is
showing the condition. In a middle floor both prelimits must
stay active if the limits hit the mechanical Cam, then Star sign
must disappear.
TIP: Check electrical drawings pages 4-12-13
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