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Light Control Rheostat

  1. Turn the rheostat knob maximum dark side and check that the resistance is 5.1 ohms. (Rheostat knob turned to fully counterclockwise). See Fig 1.
  2. Gradually, turn the rheostat knob from the dark side to bright side and check that the resistance decreases from 5.1 to 0 ohms. (Rheostat knob turned to clockwise).
  3. If operation is not as specified, replace the rheostat light control.
Fig 1: Inspecting Light Control Rheostat
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