Dimmer Switch: Testing and Inspection

Combination Meter Adjustment:

INSPECT RHEOSTAT LIGHT CONTROL VOLUME
a. Connect the positive (+) lead from the battery to terminal 5 and the negative (-) lead to terminal 1.
b. Connect the positive (+) lead from the voltmeter to terminal 5 and negative (-) lead to terminal 3.
c. Turn the rheostat knob and check that the voltage changes.

Illumination Adjustment:

INSPECT RHEOSTAT LIGHT CONTROL VOLUME
a. Connect the positive (+) lead from the battery to terminal 5 and 7 and negative (-) lead to terminal 1.
b. Connect the positive (+) lead from the voltmeter to terminal 7 and negative (-) lead to terminal 2.
c. Turn the rheostat knob and check that the voltage changes.

Tail Cancel:

INSPECT RHEOSTAT LIGHT CONTROL VOLUME
a. Connect the ohmmeter to terminals 6 and 7.
b. Turn the rheostat knob fully clockwise and check that current flow stops.
If switch is not as specified, replace the volume.