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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7695 Items Found
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Mfg. Mfg. Part Num. Description Prices
Sumitomo AF504-011 Smac-Pac AC Inverter 15 HP 460VAC Repair: 2,736.00
Sumitomo AF504-7A5 Smac-Pac AC Inverter 10 HP 460VAC Repair: 1,744.00
Sumitomo AF504-5A5 Smac-Pac AC Inverter 7.5 HP 460VAC Repair: 1,652.00
Sumitomo AF504-3A7 Smac-Pac AC Inverter 5 HP 460VAC Repair: Call for price
Sumitomo AF504-2A2 Smac-Pac AC Inverter 3 HP 460VAC Repair: 1,284.00
Sumitomo AF504-1A5 Smac-Pac AC Inverter 2 HP 460VAC Repair: 1,264.00
Sumitomo AF502-045 Smac-Pac AC Inverter 60HP 230VAC Repair: Call for price
Sumitomo AF502-037 Smac-Pac AC Inverter 50HP 230VAC Repair: Call for price
Sumitomo AF502-030 Smac-Pac AC Inverter 40HP 230VAC Repair: Call for price
Sumitomo AF502-022 Smac-Pac AC Inverter 30HP 230VAC Repair: Call for price
Sumitomo AF502-015 Smac-Pac AC Inverter 20 HP 230VAC Repair: Call for price
Sumitomo AF502-011 Smac-Pac AC Inverter 15 HP 230VAC Repair: Call for price
Sumitomo AF502-7A5 Smac-Pac AC Inverter 10 HP 230VAC Repair: 1,580.00
Sumitomo AF502-5A5 Smac-Pac AC Inverter 7.5 HP 230VAC Repair: 1,920.00
Sumitomo AF502-3A7 Smac-Pac AC Inverter 5 HP 230VAC Repair: 1,224.00
Sumitomo AF502-2A2 Smac-Pac AC Inverter 3 HP 230VAC Repair: Call for price
Sumitomo AF502-1A5 Smac-Pac AC Inverter 2 HP 230VAC Repair: 996.00
Sumitomo AF502-A75 Smac-Pac AC Inverter 1 HP 230VAC Repair: 1,016.00
Sumitomo AF502-A40 Smac-Pac AC Inverter 0.5 HP 230VAC Repair: 748.00
Boston Gear ACE-T-460V-3P-5HP Ratiotrol AC Inverter 3 Phase 460V 5 HP Repair: 720.00
Boston Gear ACE-T-460V-3P-3HP Ratiotrol AC Inverter 3 Phase 460V 3 HP Repair: Call for price
Boston Gear ACE-T-460V-3P-2HP Ratiotrol AC Inverter 3 Phase 460V 2 HP Repair: 1,100.00
Boston Gear ACE-T-460V-3P-1HP Ratiotrol AC Inverter 3 Phase 460V 1 HP Repair: Call for price
Boston Gear ACE-T-230V-3P-3HP Ratiotrol AC Inverter 3 Phase 230V 2 HP Repair: Call for price
Boston Gear ACE-T-230V-3P-2HP Ratiotrol AC Inverter 3 Phase 230V 2 HP Repair: Call for price
7695 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