What Is an EASA Motor Shop—and Why It Matters When Motors Fail

Electric motors power the essential operations of nearly every industry, from food and beverage production to water treatment, pharmaceuticals, and beyond. When motors fail, operations grind to a halt—and the cost of downtime can escalate quickly. That’s where EASA motor shops come in.

But what exactly is an EASA shop, and why should you care?

What Is an EASA Motor Shop?

An EASA (Electrical Apparatus Service Association) motor shop is a service and repair facility that is a member of EASA, a global trade organization dedicated to advancing standards, reliability, and technical expertise in the electromechanical service industry.

EASA shops adhere to ANSI/EASA AR100-2020 standards, which outline best practices for repairing and rebuilding electric motors in a way that maintains their efficiency and reliability. These shops have access to EASA's extensive technical resources, engineering support, training programs, and industry research.

What Does an EASA Shop Actually Do?

When a motor fails, an EASA-certified shop doesn’t just replace a part and call it a day. These facilities perform a comprehensive evaluation, diagnose the root cause of the failure, and execute precision repairs or rewinds that restore the motor to like-new condition.

Core Services Include:

Root-cause failure analysis
Dynamic balancing of rotors
Bearing inspection and replacement
Rewinding with proper insulation systems
Vibration and surge testing
Core loss testing to determine the health of the stator core
Mechanical repairs to shafts, housings, and end bells

These procedures follow proven engineering guidelines to ensure motors retain their original efficiency — or in many cases, improve upon it.

Common Motor Failures and How EASA Shops Fix Them

Electric motors can fail for many reasons — some preventable, others inevitable over time. EASA shops are uniquely equipped to address a wide range of failure modes.

1. Winding Failures

Cause: Overheating, insulation degradation, voltage spikes, contamination
Fix: Motor rewinding using correct insulation class, thermal protection, and vacuum-pressure impregnation (VPI)

2. Bearing Failures

Cause: Lubrication issues, misalignment, mechanical shock, vibration
Fix: Precision replacement, shaft and housing inspection, and bearing seat restoration

3. Rotor & Shaft Problems

Cause: Imbalance, wear, improper installation, torsional stress
Fix: Dynamic balancing, shaft straightening or replacement, rotor rebar correction

4. Electrical Faults

Cause: Phase imbalance, surges, loose connections
Fix: Insulation resistance testing, surge testing, retermination, and winding repair

Why It Matters

Choosing an EASA-authorized repair shop ensures that your motors are being serviced according to proven industry standards, not shortcuts. In regulated industries—like food, pharmaceuticals, and chemical processing—this level of rigor isn’t just a bonus; it’s often essential for compliance and operational safety.

Whether it’s preserving energy efficiency, extending asset life, or minimizing unplanned downtime, EASA shops are the gold standard for motor repair and reliability.

Join Us at the EASA Annual Convention

The EASA Annual Convention is the premier event for professionals in the electromechanical service and repair industry. It’s where new technologies, evolving standards, and business solutions converge. Whether you’re a plant manager, engineer, or OEM partner, this is where innovation and expertise meet.

Marathon Electric® is excited to participate in this year’s EASA Convention! We warmly invite you to visit us at booth #214 to discover our comprehensive range of electric motor solutions. Don’t miss the opportunity to explore some of our featured products.