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Motor repair · Bengaluru and Mysuru

Servo, BLDC, EC and EV motor repair in Bengaluru and Mysuru

Star Automations repairs servo motors, EC motors, BLDC motors, EV motors and drone motors for plants and product companies in Bengaluru and Mysuru, from our facility in Mahadevapura, Bengaluru. We repair the motor and the parts that usually fail with it: the encoder or resolver, Hall sensors, bearings, brakes and the drive or controller electronics. Each motor is run with no load and then under load before dispatch, and returned with a printed test report.

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Servo, BLDC, EC and EV motor repair in Bengaluru and Mysuru
  • 25+years of servo repair, since 2000
  • 3,000+customers across India
  • 100+servo brands covered by our universal servo motor test equipment
  • 5sites: Puducherry, Chennai, Bengaluru, Hyderabad, Delhi
  • Same dayemergency repair option*

*Where the fault and parts allow. Every repaired unit returns with a printed test report.

Repair turnaround you can plan around

Send a photo of the nameplate first. We confirm whether the motor is repairable, and the quote, the same working day.

Emergency: same day

For a line-down motor, where the fault and parts allow. WhatsApp us before you send it so the bench is kept free.

Urgent: 3 working days

Repair, encoder alignment and test, counted from the day the motor reaches the bench and the quote is approved.

Standard: 7 working days

Full repair, encoder alignment, run test under load and a printed test report.

  • Free repairability check from a nameplate photo
  • Printed test report with every motor
  • Written warranty, terms stated on every quotation
  • Pickup can be arranged; parts that must be imported are quoted with their own timeline
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01Motors

Motors we repair in Bengaluru and Mysuru

One page, five motor families. The fault is different in each, so the checks are different too.

Servo motors

AC servo and spindle motors on CNC machines, robots, presses and packaging lines. Typical faults: encoder alarm, bearing noise, brake not holding, overcurrent after coolant ingress. Fanuc, Yaskawa, Siemens, Mitsubishi, Allen-Bradley, ABB, B&R and other makes.

EC motors

Electronically commutated motors with the drive electronics built into the motor, used in EC fans for HVAC, cleanrooms, data-centre cooling and air handling units. Typical faults: no start, speed signal lost, failed power stage or Hall sensor.

BLDC motors

Brushless DC motors on conveyors, pumps, medical and lab equipment, coach and ceiling fans, and special-purpose machines. Typical faults: Hall sensor failure, phase imbalance, controller board damage, worn bearings.

EV motors

Traction and hub motors from electric two-wheelers, three-wheelers and material-handling vehicles, and their motor controllers. Typical faults: water ingress, Hall or position sensor failure, magnet damage, burnt controller MOSFETs, CAN communication errors.

Drone motors

Brushless outrunner motors from survey, agriculture and inspection drones, and their ESCs. Typical faults: bearing wear after dust, shaft or bell damage after a hard landing, loose magnets, a phase that has opened.

02Electronics

Encoders, feedback and motor electronics

Many motors come back to the bench with a good winding and a bad feedback device. Replacing the motor for a failed encoder is often the expensive answer.

We test and repair the feedback and the electronics with the motor, then set the commutation offset so the motor and drive agree on rotor position. Setting this offset is the step that a general motor shop often misses.

  • Incremental, absolute and serial encoders, including multi-turn types with battery backup
  • Resolvers and sin/cos feedback
  • Hall sensor sets on BLDC, EC and EV motors
  • Encoder and Hall alignment, commutation offset
  • Servo drives and amplifiers, spindle drives
  • BLDC and EV motor controllers, drone ESCs
  • EC motor power stages and control boards
  • Holding brakes, thermistors and feedback cables
03Bengaluru and Mysuru

Our Bengaluru facility, and the plants it serves

Our Bengaluru facility is at 40, Sparkling Nest Rd, Lakshmi Sagar Layout, Brigade Metropolis, Garudachar Palya, Mahadevapura, Goshala Road, Bengaluru 560048. Motors can be handed in here, couriered, or collected from your plant where needed.

Bengaluru: Peenya, Bommasandra, Jigani, Electronic City, Whitefield, Hoskote, Doddaballapur, Nelamangala and Hosur. Mysuru: Hebbal, Metagalli, Hootagalli, Belavadi, Kadakola and Nanjangud.

A typical Peenya job: a CNC spindle or axis motor with bearing noise that has started to damage the encoder. A typical Mysuru job: a servo or BLDC motor from an automotive or engineering line with a feedback alarm after a long run in a hot cell.

  • Machine tool builders and CNC job shops
  • Special-purpose machine builders and system integrators
  • Aerospace, defence and precision machining
  • Electronics assembly, SMT and packaging lines
  • EV, battery and two-wheeler plants
  • Drone and robotics companies
  • HVAC, cleanroom and data-centre facilities
  • Pharma, food and process plants
04Tenders

Repair against tenders, rate contracts and purchase orders

Public sector units, research labs, railways and large plants in Karnataka buy motor repair through tenders, rate contracts and purchase orders. These are the line items we are usually asked to quote against, and what we send with the quote.

What the tender or PO asks forWhat we quote and send
Repair of servo motor, with make, model and serialInspection findings and a quote per serial number before work starts
Repair and overhauling of spindle motorBearing, balance and winding checks, then a no-load and loaded run
Repair of encoder or feedback deviceEncoder repair or replacement, alignment, and the commutation offset recorded
Repair of servo drive, amplifier or PCB cardBoard-level repair and a function test, with the same unit returned
Repair of BLDC motor and controllerMotor and controller tested together, Hall timing checked
Repair of EV traction or hub motor and controllerInsulation, sensor and controller checks, then a run test
Rate contract or annual repair contractItem-wise rates agreed in advance, the same test report for every unit

Every repaired unit is your own unit, returned with its serial number traced from inward to dispatch and a printed test report. GSTIN, IEC and Udyam details are shared on request. Warranty terms are stated on each quotation.

We are an independent multi-brand repairer. Where a tender asks for repair by the OEM or its appointed service centre, we say so plainly in our reply.

05Verification

How the repair is verified

Servo motors are tested on the servo motor test system: insulation and hi-pot, winding balance, encoder feedback and commutation offset, brake release and holding, a no-load run and a load run. Speed and current are compared with the nameplate.

BLDC, EC, EV and drone motors get insulation and phase-balance checks, Hall sensor timing, a back-EMF check, and a run test with their own controller or a matched one. No-load current and speed are compared with the rating.

You receive a printed test report with the motor. How the load test works.

06Brands

Servo motor brands we repair

07How to send

How to send the motor

Talk to us before you ship, so the unit is expected and logged on arrival.

  1. Send the nameplate

    WhatsApp a clear photo of the nameplate, the alarm or error code and what the machine or vehicle was doing when it failed.

  2. We confirm repairability

    We tell you whether we can test and repair that model before anything is shipped.

  3. Hand in, courier or pickup

    Bring the motor to our Mahadevapura facility, courier it, or ask us to arrange pickup from your plant in Bengaluru or Mysuru.

  4. Inspection and quote

    The motor is opened, inspected and photographed. You get the findings and a quote before work starts.

  5. Repair, test, dispatch

    Repaired, run-tested and load-tested, then dispatched with a printed test report.

At the Bengaluru bench

Servo drive and board faults are traced at component level on this bench.

Close view of a spectrum analyser screen on the test bench
Spectrum analyser screen during a signal check.
Star Automations technician operating a bench instrument during a functional check
Functional check at the test bench.
→How it works

From nameplate photo to a tested motor in 7 steps

One route for servo motors, encoders and drives. You see the price before any work starts, and the report before the unit leaves our bench.

  1. 1 · Nameplate photoSend it on WhatsApp or the form
  2. 2 · Repairable? QuoteUsually the same working day
  3. 3 · Courier or pickupThe unit reaches our bench
  4. 4 · Bench diagnosisInsulation, windings, brake, encoder
  5. 5 · RepairFailed parts, bearings, seals, brake
  6. 6 · Align and run-testEncoder aligned; no-load and load run
  7. 7 · Report and dispatchPrinted test report with the unit
  8. Line down?Servo Swap ships a tested unit first. How Servo Swap works

EmergencySame day*

Urgent3 working days

Standard7 working days

*Where the fault and parts allow. Turnaround counts from when the unit reaches our bench and the quote is approved.

Start with step 1WhatsApp the nameplate
08Questions

Motor repair in Bengaluru and Mysuru

More on the FAQ page.

Do you repair servo motors in Bengaluru?

Yes. Star Automations repairs servo and spindle motors for Bengaluru plants from our facility in Mahadevapura. Each motor is run with no load and under load before dispatch and returned with a printed test report.

Do you repair BLDC, EC and EV motors and their controllers?

Yes. We repair BLDC motors, EC motors with built-in electronics, and EV traction and hub motors, together with their controllers, Hall sensors and feedback devices.

Can you repair drone motors?

Yes. We repair brushless outrunner motors from drones, including bearings, shafts, magnets and phase faults, and check them with the ESC before they go back.

Do you serve Mysuru?

Yes. Plants in Hebbal, Metagalli, Hootagalli, Belavadi, Kadakola and Nanjangud can courier motors to our Bengaluru facility or ask us to arrange pickup.

Can you quote against a tender or a rate contract?

Yes. We quote item-wise against the make, model and serial in the tender, with inspection findings before work and a printed test report per unit. Warranty terms are stated on each quotation.

How long does servo motor repair take for Bengaluru?

Standard repair takes about 7 days, urgent repair about 3 days, and an emergency job can be done the same day, plus courier time each way. Send the nameplate photo and alarm code first and we confirm repairability and timing before you ship from Bengaluru.

My servo motor in Bengaluru shows an alarm or does not run. What should I check first?

Switch off and lock out the power, note the alarm code and photograph the nameplate. Check the cable and connector, turn the shaft by hand (release the brake first on a brake motor) and look for oil, dust or burning. Do not keep restarting it. Read our guide on how to check an AC servo motor, then send us the details.

Why do I get a mismatch error after fitting a new servo motor of the same brand and kW?

The drive checks the motor series, encoder type, motor ID, voltage and speed, not just the kW. A motor with the same brand and kW can still differ in these, or its encoder may not be aligned, so the drive rejects it. See our mismatch error guide or send us the nameplates.

How should plants in Bengaluru maintain servo motors?

Keep the motor clean and cool, check the cable and connector, listen for new noise, watch the temperature and keep a record of drive alarms. Our servo motor maintenance checklist gives the routine. Send the motor early if you see repeated alarms, heat or noise.

Guides: AC servo motor: working, problems and maintenance · Maintenance checklist · Mismatch error after replacement · Servo motor repair FAQ

More repair and electronics services in Bengaluru

Industrial areas we serve

Servo motor repair pages for industrial areas: Peenya · Bidadi · Electronics City · Bommasandra · Jigani · Whitefield · Harohalli.

Send the nameplate. We confirm repairability before you courier.

WhatsApp a nameplate photo and the alarm or error code to +91 97866 22233, or email info@starautomations.com.

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See also: AC servo motor repair and DC servo motor repair.