Check the rotor coil for continuity. Make sure there is continuity between the slip rings.

Check the rotor coil for a ground. Check that there is no continuity between slip the ring and the core. If there is continuity, replace rotorassembly.

Make a continuity check on the stator coil. Check that there is continuity between the coil leads. If there is no continuity, replace thestator assembly.

Check the coil for grounding. Check that there is no continuity between the coil and the core. If there is continuity, replace the statorassembly.