Having a Problem? (Continued)
11. The operator motor hums briefly, then won't work:
•The door springs may be broken. See above.
12. The operator won't operate due to power failure:
•Use the emergency release handle to disconnect the door. The door can be opened and closed manually. When power is restored, pull manual release a second time.
•If a Standby Power Unit is connected, the operator should be able to operate up to 20 times without power.
13. Door loses limits.
•Collar not tightened securely. Tighten collar
(see Assembly Steps 1 and 2) and reprogram limits (see Adjustment Step 1).
14. The operator moves when the door is in operation:
•Some minor movement is normal for this product. If it is excessive the collar will wear prematurely.
•Check to make sure the torsion bar is not moving left/ right excessively.
•Check to make sure the torsion bar is not visibly moving up and down as it rotates.
•Check that the operator is mounted at a right angle to the jackshaft. If not, move the position of the mounting bracket.
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