Dimmer Switch: Testing and Inspection

INSPECT LIGHT CONTROL RHEOSTAT
a. Check continuity between terminal 1 and 2 of light control rheostat when light control rheostat operation as shown in the chart.




b. Check light control rheostat resistance.
1. Measure the resistance between terminal 1 and 3 of light control rheostat.
Standard resistance: Approx. 10 kOhm
2. Measure the resistance between terminal 1 and 4 of light control rheostat when operating the light control rheostat. Check that the resistance value changes continuously.

Standard resistance:
When turned fully clockwise: Approx. 10 kOhm
When turned fully counterclockwise: Approx. 0 kOhm