Component Tests and General Diagnostics

Fan Motor
1. Apply battery voltage to fan motor electrical connector.
2. If motor fails to operate, it should be replaced.

Thermo Switch
1. Connect an ohmmeter to thermo switch.
2. Immerse switch in water, then heat water gradually and check for continuity. Continuity should exist when water temperature reaches a range of 201-208°F and above, and should not exist when temperatures are between 192-199°F and below.
3. If switch does not operate as specified, it should be replaced.