Da-Lite Tensioned Executive Electrol Instruction Book page 8

Troubleshooting
Symptom
Screen jammed. Will not operate,
motor hums, door open, closing
mechanism detached from door.
Scraping or grinding noise.
Gear noise.
Incorrect down limit switch setting.
Door closes and screen
continues to run upward.
8
Cause
Closing mechanism detached from door,
allowing it to jam into box.
If metal shipping bracket is left attached
to screen, it may be rubbing on motor
end of roller.
Gear may need light weight grease.
Lost roller wrap.
Limit switch out of adjustment.
Door limit out of adjustment.
Door limit switch is shorted.
Solution
After securing fabric to roller, loosen set screws on
motor gear and manually rotate solenoid assembly back
over top of roller into position, then reattach door. Match
flats on motor drive shaft to gear set screws and tighten.
Remove shipping brace.
Apply light weight grease.
See installation instructions.
See door closure and timing instructions.
Loosen nut holding limit switch.
Rotate adjusting position, then secure.
Repair short or replace limit switch.