Rectifier Diode / Bridge: Testing and Inspection

Rectifiers - Positive Rectifier Test:

Positive Rectifier Test
Check for continuity between positive rectifier and stator coil lead connection terminal with a circuit tester. If there is continuity in both directions, diode is shorted. Replace rectifier assembly.

Rectifiers - Negative Rectifier Test:

Negative Rectifier Test
Check for continuity between negative rectifier and stator coil lead connection terminal. If there is continuity in both directions, diode is shorted, and rectifier assembly must be replaced.

Rectifiers - Diode Trio Test:

Diode Trio Test
Check three diodes for continuity by connecting an ammeter to both ends of each diode. If there is no continuity in both directions, diode is faulty and heatsink assembly must be replaced.