A ceiling fan uses a single-phase capacitor start and run motor to circulate air in a room. The motor produces a rotating magnetic field through the use of a starting winding and capacitor, which divides the single phase into two phases. The key components of a ceiling fan are the electric motor, blades made of aluminum, a ball bearing, and a terminal box. A troubleshooting chart can help diagnose issues, and testing for earth faults ensures no current is leaking through the fan's metallic body.