AC Motor Controls


Expert AC Motor Control Repair Services

At Control System Labs, we specialize in the repair of a wide range of AC motor controls, including variable frequency drives (VFDs), soft starters, and inverter drives. Our experienced technicians are equipped to handle devices from a variety of leading manufacturers. We offer comprehensive services to return your equipment to optimal performance, minimizing downtime and extending the lifespan of your assets.

Our repair services address common issues such as:

  • Overheating and thermal failures
  • Faulty capacitors and power supply issues
  • Control circuit malfunctions
  • Communication errors and interface problems
  • Drive not powering up or inconsistent performance

Our repair process includes:

  • Detailed diagnostics
  • Replacement of defective components with high-quality parts
  • Functional testing under load conditions 
  • Comprehensive 2-year warranty on all repairs

To initiate a repair, you can search further in the list below, or feel free to Contact Us directly for help in resolving your specific issue.

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Mfg. Mfg. Part Num. Description Prices
Rexroth HCS03.1E-W0070-A-05-NNBV IndraDrive C - Less Input Module, 400...500VAC 3 Phase 50 A In, 0-480VAC 3 Phase 45 A 0-1600Hz Out Repair: 3,094.00
Reliance Electric 410483-15A GV3000 Keypad Repair: 644.00
Sigmatek Robotdrive M3-1 3 Axis Motor Drive 4kW 380-480V 50-60Hz 10/20 A In 560VAC 0-8000 Hz Out Repair: 1,994.00
Johnson Controls AYK550-UH-031A-4+K465 Johnson Control 20HP 480VAC 15kW Drive Control Repair: 1,894.00
Lenze ESV373N04TXB SMVector 50 Hp AC Drive, 400/480 VAC 3 Ph 85/74 A 50/60Hz In, 0-400/460VAC 75/65A 0-500 Hz Out Repair: 1,984.00
7705 Items Found
Can't Find Your Item?

We repair almost any item! Request a free quote through our RMA form or call us at Toll Free: (800) 284-2420