Emerson VISSION 20/20 service manual Replace the actuator. See above

Problem

The motor runs sporadically

The motor runs but output shaft will not turn

Reason

Bad thermal switch

Any of the reasons listed in “The motor will not move in either direction”

Stripped gears inside the gear motor or the armature has come un-pressed from the armature shaft

Solution

Replace the actuator. See above.

Replace the actuator.

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