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Elevator World Article

1 Minute Read

July 14, 2026

Troubleshooting Electric Motors and VFDs in Elevator Applications

The July 2026 issue of Elevator World magazine features an article by Jeff Collins, Partner at Renown Electric Motors & Repair Inc.

This practical field guide is designed to help elevator tradespeople navigate the complexities of modern machine rooms, which rely heavily on integrated electric motors, Variable Frequency Drives (VFDs), and advanced control systems. Learn more about:

  • Accurate Root Cause Analysis: It teaches technicians to look beyond basic fault codes and accurately distinguish between electronic symptoms and hidden mechanical faults, preventing the costly mistake of blindly replacing parts.
  • Targeting Elusive System Stressors: The guide explains how to diagnose easily overlooked issues that mimic motor failures, such as incoming power quality imbalances, grounding deficiencies, and VFD-induced shaft voltages that cause premature bearing damage.
  • Proactive System Maintenance: It outlines a structured, five-step troubleshooting workflow and introduces modern predictive maintenance tools—like vibration and motor current signature analysis—allowing you to catch electromechanical faults before they lead to building downtime.

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