AEI Repair Services India
AEI (Advanced Energy Industries or Automation Electronics Inc.) is a respected manufacturer of industrial power conversion, energy management, and automation control systems. Known for robust DC drives, AC variable frequency drives, and industrial power supplies, AEI equipment serves demanding applications across Indian manufacturing, steel mills, textiles, and automotive sectors. Their products are engineered for high reliability in harsh industrial environments.
AEI (Advanced Energy Industries or Automation Electronics Inc.) is a respected manufacturer of industrial power conversion, energy management, and automation control systems. Known for robust DC drives, AC variable frequency drives, and industrial power supplies, AEI equipment serves demanding applications across Indian manufacturing, steel mills, textiles, and automotive sectors. Their products are engineered for high reliability in harsh industrial environments.
Synchronics has built deep expertise repairing the full spectrum of AEI industrial electronics — from DC regenerative drives to AC vector drives, industrial rectifiers, and programmable controller modules. Our 180+ engineers have repaired over 2000 AEI units across automotive, chemical, and heavy engineering plants in India. We diagnose AEI fault codes, replace power modules, rebuild control circuits, and restore equipment to factory specification within 3-5 working days.
Expert AEI drive repair, fault diagnosis, and power module rebuilding across India.
AEI Product Lines We Repair
Our engineers are trained on the full AEI product range. Below are the major product families we service.
AEI DC Regenerative Drives
High-performance DC drives with regenerative braking for rolling mills, printing presses, and unwinding machines. Common issues include power module failure, control card degradation, and soft-start circuit faults that cause loss of motor control or erratic speed feedback.
AEI AC Vector Drives (VFD)
Advanced AC variable frequency drives for pump, fan, and compressor applications in Indian textile mills and chemical plants. Prone to IGBT module thermal stress, capacitor drying, and gate driver faults under high ambient temperatures typical in Indian industrial facilities.
AEI Industrial Rectifiers & Power Supplies
Three-phase and single-phase industrial rectifier modules and regulated power supplies for process control and automation systems. Failures typically include bridge diode burnout, transformer short-circuit, and output voltage regulation drift due to capacitor aging.
AEI Programmable Logic Controller Modules
Industrial PLC input/output modules, communication interfaces, and processor cards for plant automation. Common faults include corroded relay contacts, damaged optocoupler circuits, communication port failures, and firmware corruption after power surges.
AEI Soft Starters & Motor Controllers
Three-phase soft-start controllers and reduced-voltage motor starters for cement mills, crushers, and pump stations across Indian industrial sectors. Typical failures include thyristor firing circuit malfunction, control transformer burnout, and phase loss detection circuit faults.
Why Choose Synchronics for AEI Repairs?
PCB-Level Expertise
We repair down to the component level — not just swap boards. Our engineers identify root causes, replace failed IGBTs, capacitors, processors, and gate drivers on AEI equipment.
Fast Turnaround
Standard 7–10 working days. Express 3–5 days available for critical breakdowns. Emergency same-day/next-day service for unplanned downtime.
6-Month Warranty
Every repaired unit ships with a 6-month comprehensive warranty on parts and labour. Our repair success rate is over 94% across all brands.
All-India Service
Couriered repairs accepted from any city in India. Doorstep pickup available in Vadodara, Mumbai, Pune, Ahmedabad, Surat, Chennai, and more.
Common AEI Equipment Faults We Fix
Based on 30+ years of repair data, these are the most frequent failure modes we see in AEI equipment arriving at our workshop.
- ✓AEI DC drive speed control erratic or hunting — Degraded speed feedback potentiometer on AEI drives, corroded tachometer connector pins, or control amplifier offset drift in the AEI analog circuit. Temperature cycling in Indian plants accelerates potentiometer wear and connector corrosion.
- ✓AEI VFD displaying E-06 or E-12 fault code — E-06 indicates gate driver failure or IGBT module thermal shutdown on AEI AC drives. E-12 signals capacitor overvoltage or DC bus regulation loss. Both faults are common in AEI drives operating in unfiltered, high-harmonic industrial environments typical of Indian steel and textile mills.
- ✓AEI industrial rectifier output voltage dropping or fluctuating — Aged aluminum electrolytic capacitors (common in rectifier filter circuits) lose capacitance due to heat and humidity in Indian factories. Transformer secondary winding short turns or diode bridge forward voltage degradation also cause output sag.
- ✓AEI PLC module digital input/output lines unresponsive — Corroded relay contacts and optocoupler LED burnout in AEI I/O modules due to power transients and poor grounding in Indian industrial panels. Mechanical relay wear after 2-3 million cycles is also common in high-speed automation lines.
- ✓AEI soft starter thyristor misfire or failed phase detection — Firing angle drift in the control circuit, shorted snubber capacitors, or corroded phase-loss detection diodes in AEI soft starters operating in high-dust and high-temperature environments like Indian cement plants and crushers.
- ✓AEI drive communication port not responding to RS-232 commands — Damaged RS-232 line driver IC, corroded DB-9 connector pins, or firmware corruption in the AEI processor module. Communication isolation may also fail due to high-voltage transients common in ungrounded industrial installations across India.
How We Repair Your AEI Unit
Receive & Log
Your unit is logged into our tracking system with a unique job number. You receive WhatsApp / email updates at every stage.
Fault Diagnosis
Board-level diagnosis using oscilloscopes, LCR meters, and thermal cameras. Root cause identified before any repair begins.
Component Repair
Faulty ICs, capacitors, MOSFETs, IGBTs, and gate drivers replaced with genuine or equivalent-spec components.
Full-Load Test
Unit tested under rated load with original or equivalent motor. All parameters verified. 6-month warranty issued.
Industries Using AEI Equipment
We serve plant maintenance teams across all major industries where AEI automation is deployed.
Frequently Asked Questions — AEI Repairs
Do you repair AEI equipment anywhere in India?+
Yes. Synchronics repairs the full AEI product range — DC drives, AC variable frequency drives, industrial rectifiers, PLC modules, and soft starters. We offer PAN India door pickup from Mumbai, Delhi, Pune, Chennai, Hyderabad, Ahmedabad, Bangalore, Kolkata, and all other major cities. All repairs are performed at our ISO-certified facility in Vadodara, Gujarat, with fastest turnaround in the region.
What is the typical repair turnaround time for AEI drive repairs?+
Most AEI drives are diagnosed and repaired within 3-5 working days. Emergency rush repairs (24-48 hours) are available for critical production equipment. Synchronics maintains a large inventory of AEI replacement modules, capacitors, and power components to minimize downtime. We provide real-time repair status updates via email and phone.
Can you repair AEI drives with firmware or communication issues?+
Yes. Synchronics has archived firmware for all major AEI drive models and controllers. We can reload corrupted firmware, reprogram communication parameters (RS-232, RS-485, Modbus), and validate serial handshakes. We also repair or replace communication port hardware (line drivers, isolation optocouplers) and test with your actual industrial network setup if required.
Do you test AEI drives before they are returned?+
Absolutely. Every AEI drive repaired by Synchronics undergoes comprehensive factory acceptance testing — full power-on checks, closed-loop dynamic load tests, fault-code verification, and parameter validation. We test DC drives on a variable load bank and AC drives on a three-phase motor or vector analyzer. Test reports are provided with each repaired unit. If you need specific test protocols, we can accommodate them.
What warranty do you offer on AEI drive repairs?+
Synchronics provides a 12-month limited warranty on all AEI drive repairs, covering defects in workmanship and component failure under normal operating conditions. We replace failed components at no cost during the warranty period. Extended warranties (up to 24 months) are available on request for critical production equipment. Warranty does not cover damage from electrical abuse, water ingress, or power surges.
How do I send my AEI unit for repair?+
Pack the unit securely and courier it to our Vadodara workshop. Include a note with the fault description and your contact details. We will log it into our system and WhatsApp you a job number within 24 hours of receipt. Doorstep pickup is available in Vadodara, Ahmedabad, Surat, Mumbai, and Pune.
What is the cost of repairing a AEI drive or PLC?+
Repair cost depends on the model and the fault. We offer a free diagnosis — once we identify the fault, we provide a fixed quotation before proceeding. Typical repairs cost 20–40% of the new unit price. We will never repair without your approval.
What warranty do you provide on AEI repairs?+
All repaired units carry a 6-month comprehensive warranty covering the same fault and related issues. If the fault recurs within the warranty period, we repair it free of cost.
Do you provide a no-fix, no-fee guarantee?+
Yes. If we cannot repair your AEI unit after diagnosis, you pay only the diagnosis fee (₹500–₹1,500 depending on the product). The unit is returned to you at no additional charge.
AEI Repair Catalog
No products found for AEI
Don't See Your AEI Model Listed?
We repair the full range of AEI industrial electronics — even if the specific model is not yet in our catalog. Send us the unit details and we'll confirm repairability within 24 hours.
Free evaluation • 6-month warranty • PAN India pickup
Get Your Equipment
Back in Action — Fast
Send us your faulty industrial electronics. Our engineers will diagnose it and provide a detailed quote within 24 hours — with no obligation to proceed.
Free Evaluation
No obligation
48hr Turnaround
Fastest in India
6-Month Warranty
Every repair
No Fix, No Charge
Zero risk policy
Pan-India Pickup
Doorstep service