Servo Motor Repair Services
Servo motors never fail at a convenient time. One day your machine is holding position perfectly, the next you are chasing alarms, drift, overheating, encoder faults, or a drive that will not enable at all.
Specialized AC, DC, and Brushless Motor Repair
ACS Industrial Services provides AC servo motor repair, DC servo motor repair, and brushless servo motor repair for manufacturers and maintenance teams that need their equipment back online without paying “new motor” pricing. For more than 25 years, we’ve helped plants reduce downtime, extend the life of legacy equipment, and keep production moving with dependable, tested repairs backed by a 2-year comprehensive warranty.
Repair vs Replace
If you are weighing repair vs. replacement, here’s the simple math. Repair can save you up to 80% compared to buying new, and it often gets you running faster than waiting on lead times or hunting for discontinued models. We support all major brands, including legacy and hard-to-source servo motors.
Every unit starts with a free evaluation and a no-obligation repair quote, so you can make a decision with real information, not guesses.
Siemens 1FT7 Servo Motor Repair. We service most Siemens models.
- All you pay is shipping.
- No Estimates - No Surprises ... Accurate Quote within 72 hours.
- Replace or Repair? Why Guess ... send us your item and then decide.
Why Choose ACS Industrial Services?
When your servo motor goes down, you do not just need "a repair." You need a repair that restores performance, holds tolerances, and does not come back to bite you a month later.
ACS Industrial Services is built for that kind of work.
Here’s what you get when you send your servo motor to ACS:
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25+ years of servo motor repair expertise
We’ve seen the common failures and the weird ones. That experience matters when you are trying to i pinpoint what actually failed and why. -
Support for domestic and foreign motor models
Whether you are running U.S. equipment, Japanese CNC platforms, or a mix of both, we repair a wide range of servo motors used across industrial environments. -
Advanced diagnostics and dedicated test fixtures
Accurate troubleshooting depends on proper testing. We use specialized equipment and fixtures to validate electrical health, feedback alignment, and overall performance. -
Clear repair quotes with no hidden surprises
After evaluation, you receive a detailed quote. If the economics do not make sense, you can decline with no obligation. -
Highly trained technicians and in-house machining capabilities
Many servo repairs require more than swapping parts. We have the hands-on skill and machining support to address shafts, housings, and mechanical tolerances when needed. -
A 2-year industrial warranty on repairs
Our repair work is backed by a comprehensive 2-year warranty on repair labor and replaced parts, unless otherwise noted on your quote.
Save Up to 80% vs. Buying New
Replacing a servo motor sounds simple until you start looking at real costs and real timelines.
New servo motors can be expensive, and lead times can stretch out quickly, especially for specialty models, foreign motors, or legacy equipment. Even when the motor is technically “available,” you may still be stuck waiting on procurement, approvals, shipping, and re-commissioning.
Repair gives you a practical alternative that often wins on both cost and time.
What customers typically see when choosing servo motor repair:
- Savings in the 50% to 80% range compared to buying new
- Less downtime risk by avoiding sourcing delays and backorders
- Better continuity for legacy systems where a new motor is not a true drop-in replacement
- Confidence in performance through full functional testing before return shipment
Standard and rush turnaround options
Turnaround depends on the motor type, damage level, and parts availability, but we aim to keep the process predictable.
- Standard turnaround is typically about 3 weeks from quote approval. This timeframe accounts for repair work, parts, testing, and quality checks.
- Rush Repair Service is available for urgent downtime scenarios. Many rush repairs are completed in 3 to 5 business days, and some can move even faster depending on the motor and required parts.
Our Simple Repair Process
Servo motor repair should not feel like a black box. We keep the process straightforward so you know what happens, when it happens, and what you can expect next.
1) Submit Your Unit
Start by filling out our repair form and shipping your servo motor to ACS. If you have multiple units, you can list them all in one submission. If you have fault codes, drive alarms, or notes on symptoms, include them. Even a short description helps our technicians focus their evaluation.
2) Free Evaluation
When your unit arrives, we perform a detailed diagnostic evaluation. You receive a written quote within 24 to 72 hours in most cases. Your quote will outline recommended repairs and the pricing so you can approve, decline, or ask questions before work begins.
3) Repair and Precision Testing
Once approved, our team repairs the motor using the appropriate methods for your motor type and failure mode. This may include electrical repairs, mechanical restoration, feedback device work, and alignment.
After repairs are complete, the motor is tested to confirm performance. Testing is where a good shop separates itself from a shop that just swaps parts.
4) Return Shipping
When testing is complete, your repaired servo motor is packaged and shipped back promptly so you can reinstall and get production running again.
Ready to start?
Supported Manufacturers (partial list)
Servo motor repair should not feel like a black box. We keep the process straightforward so you know what happens, when it happens, and what you can expect next.
The following is a list of the manufacturers we service and repair. If your manufacturer is not shown here, it is very likely we can be of assistance. Just contact us for more information using our Contact page, or call 800-605-6419
Specialized Servo Motor Repair Services
Servo motor failures are not all the same, and neither are repairs. Some units need electrical restoration. Others need mechanical work, feedback alignment, or precision machining because OEM parts are no longer available.
Here are a few of the specialized repair capabilities we provide.
Brushless Servo Motor Repair
Brushless servos are common in modern automation and CNC systems, but they are not immune to wear, contamination, overheating, or feedback issues. We rebuild and realign brushless servo motors with a focus on restoring smooth operation, proper commutation, and reliable feedback performance.
Legacy AC Servo Motor Repair
Older AC servo motors may be discontinued, difficult to cross-reference, or expensive to replace. We specialize in precision repair of legacy and obsolete models so you can keep proven equipment running without redesigning your system around a new motor.
DC Servo Motor Repair
DC servos require a different repair approach. We repair issues involving field windings, commutators, brushes, bearings, and electrical insulation breakdown. If your DC servo is sparking, losing torque, overheating, or showing unstable speed control, repair can often restore function without replacement.
Encoder and Feedback Device Repair
Many “servo motor problems” are really feedback problems. We repair and service common feedback devices, including encoders, resolvers, and Hall-effect sensors. If your drive is throwing encoder alarms, losing position, or faulting intermittently, feedback alignment and replacement may be part of the fix.
Motor Housing and Shaft Machining
Sometimes the failure is mechanical. Damaged shafts, worn bearing surfaces, endbell issues, or custom fits can keep an otherwise repairable motor out of service. With in-house machining capabilities, we can re-machine endbells, sleeves, and custom parts when OEM replacements are unavailable.
If your motor type or component is not listed, contact us. We likely service it.
To see our broader capabilities beyond servo motors: Repair Services
Testimonials
Downtime stories tend to start the same way. A key machine faults, production stops, and everybody is trying to get back online fast. Here’s what a few customers have shared after working with ACS.
“Our system experienced a critical servo failure. ACS repaired and returned it in just 7 days.
Impressive work!”
Jason Brooks (Ohio)
"Dear ACS, I want to thank you for the way you handled the 2 repairs. Your repair of our drive and
motor helped us determine the true issue, a tooling error. Great job!! I will recommend ACS to all the
sites we service."
Russ S. (New York)
"Good Morning, I wanted to let you know we got our machine back Wednesday, hooked it up and it worked
great. Thank your people for me. You helped save us thousands of dollars and prevented a lot more
down time. Good experience."
Jerry M.
Frequently Asked Questions
Ready to Restore Your Servo Motor and Save Big?
If you are dealing with servo alarms, lost position, overheating, noise, vibration, or a motor that will not enable, you do not have to default to replacement. ACS Industrial Services repairs AC, DC, and brushless servo motors with fast turnaround options, thorough testing, and a 2-year warranty that helps you move forward with confidence.
Start with a free, no-risk evaluation and get a clear repair quote. If the numbers make sense, we’ll get your unit repaired and back to you quickly. If they do not, you can walk away with no obligation.
Call us today at 800-605-6419 or use the links below to get started: