1.   Another item is the continuity tester.

2.   Before testing any electrical component with the continuity tester, it is a good idea to test the tester.

3.   A continuity tester is an inexpensive, battery-powered light with a probe at one end and a wired clip at the other.

4.   The best way to check out a power cord is with a continuity tester or an ohm meter.

5.   To do that test the switch with a continuity tester by touching one probe to the common terminal and the other to a traveler terminal.

6.   With the continuity tester touch the alligator clip to one fuse contact and the metal probe to the other.

7.   You can, however, test it with a continuity tester.