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Electronic Theatre Controls Inc

Replacing Sensors


Replacement sensor did not help with an error message.

Description/Explanation of Issue

   A sensor was replaced to correct an error, but the error still exists. Sensors can be installed backwards. Most sensors have two sets of screw holes and if not installed in the correct pair then the sensor will not line up with the homing magnet. 


  1. Ensure that the sensor was installed in the correct direction with the components facing the homing magnet.
  2. Also make sure the correct set of screw holes are used to mount the sensor.
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