DC Motor Troubleshooting Guide


This guide provides a comprehensive troubleshooting chart to help technicians identify and correct common issues encountered in DC motors, including startup failures, power loss, direction errors, and mechanical noises.

Key Points

  • Covers common DC motor issues such as failure to start, power loss, and noise.
  • Highlights safety precautions for maintenance and service.
  • Provides testing instructions using an OHM meter.
  • Identifies signs of mechanical failure like defective bearings or brush wear.
  • Offers step-by-step diagnostic procedures for each problem.
  • Includes guidance for checking motor wiring, brushes, and armature.
  • Offers suggestions for controller settings and adjustment.
  • Helps determine when motor replacement is necessary.