LS Repair Services India
LS Electric is a South Korean multinational specializing in power distribution, industrial automation, and electric drives. Founded in 1974, LS has established itself as a trusted name in motor control centers, variable frequency drives (VFDs), and programmable logic controllers across 140+ countries. In India, LS equipment is widely deployed in textile mills, sugar factories, steel plants, and automotive manufacturing facilities.
LS Electric is a South Korean multinational specializing in power distribution, industrial automation, and electric drives. Founded in 1974, LS has established itself as a trusted name in motor control centers, variable frequency drives (VFDs), and programmable logic controllers across 140+ countries. In India, LS equipment is widely deployed in textile mills, sugar factories, steel plants, and automotive manufacturing facilities.
Synchronics Electronics repairs the complete LS product portfolio including LSIS drives, G7 series frequency inverters, and industrial control systems. Our 180+ engineers have over two decades of field experience diagnosing LS equipment failures, replacing damaged IGBTs, reprogramming corrupted firmware, and restoring failed power modules. Indian plant managers rely on Synchronics for rapid turnaround and cost-effective LS repairs without manufacturer downtime penalties.
Expert LS VFD and drive repair across India since 2001.
LS Equipment We Repair — By Category
LS Product Lines We Repair
Our engineers are trained on the full LS product range. Below are the major product families we service.
LSIS G7 Series VFD
Compact 3-phase variable frequency drives for motor speed control in pumps, fans, and conveyors. Common failures include IGBT burnout from load spikes, capacitor degradation in tropical climates, and control board faults from inadequate cooling.
LS iG5A Series Inverter
Mid-range industrial VFD with integrated EMC filtering and multi-function I/O. Prone to DC bus voltage instability, cooling fan failures in high-ambient environments, and parameter corruption from power surges on Indian grid.
LS iG7 Series Premium Drive
High-performance VFD with advanced vector control for precision textile machinery and printing presses. Repair issues include resolver module failures, current transformer calibration drift, and firmware version incompatibility after grid disturbances.
LS PLC / HMI Control Systems
Programmable logic controllers and human-machine interfaces for factory automation. Common faults include corrupted ladder logic memory, Ethernet port failures, and input/output card malfunctions from lightning strikes and industrial noise.
LS Soft Starter (LSMS)
Electronic motor starting controllers reducing inrush current and mechanical stress. Failures stem from thyristor gating circuit faults, control terminal short circuits, and phase loss detection module degradation.
LS Industrial UPS Systems
Three-phase uninterruptible power supplies protecting critical automation equipment. Issues include battery charger failure, inverter bridge faults, and static switch contact burnout under fault conditions.
Why Choose Synchronics for LS 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 LS 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 LS Equipment Faults We Fix
Based on 30+ years of repair data, these are the most frequent failure modes we see in LS equipment arriving at our workshop.
- ✓IGBT module short circuit and thermal runaway — Repeated power surges on Indian industrial grids, inadequate heatsink maintenance causing junction temperature spikes above 150°C, leading to IGBT die fracture and gate oxide breakdown.
- ✓DC bus capacitor bulging and electrolyte leakage — High ambient temperatures in Indian factories (40-45°C), inadequate ventilation in drive cabinets, and ripple current stress from long input cable runs cause aluminum electrolytic capacitor degradation and internal pressure buildup.
- ✓Cooling fan motor seized or bearing failure — Dust accumulation and moisture ingress in enclosed drive cabinets, bearing lubrication breakdown under continuous operation, and mechanical imbalance from fan blade corrosion cause motor winding burnout or catastrophic bearing seizure.
- ✓Control board microprocessor malfunction and parameter loss — Firmware corruption from unexpected power interruptions, electrostatic damage to digital logic during installation, or manufacturing EEPROM defects result in drive lockup, loss of custom tuning parameters, and communication timeouts.
- ✓Gate driver circuit failure and PWM signal loss — Surge transients on motor cable shield, inadequate isolation transformer sizing, and PCB track corrosion from moisture in marine and textile plant environments degrade gate driver IC performance, preventing IGBT switching.
- ✓Resolver feedback encoder signal loss or drifting — Long cable runs on factory floors introducing induced noise, resolver connector corrosion from salt air in coastal regions, and mechanical decoupling of resolver rotor shaft cause feedback signal degradation and vector control instability.
How We Repair Your LS 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 LS Equipment
We serve plant maintenance teams across all major industries where LS automation is deployed.
Frequently Asked Questions — LS Repairs
Do you repair LS equipment anywhere in India?+
Yes. Synchronics repairs the full LS product range — G7 VFDs, iG5A and iG7 series drives, PLC/HMI systems, soft starters, and industrial UPS units. We offer PAN India door pickup from Mumbai, Delhi, Pune, Chennai, Hyderabad, Ahmedabad, Bangalore, and all other industrial cities. All repairs are processed at our 25,000 sq ft facility in Vadodara, Gujarat with guaranteed 7-10 day turnaround.
Can Synchronics repair LS G7 series drives with burnt IGBT modules?+
Absolutely. LS G7 IGBT failures are one of our most common repairs, especially in Indian textile mills and pump stations where grid transients are severe. We replace IGBT dies with OEM-grade semiconductors, upgrade thermal interface materials, and test at 110% rated current. We also identify and correct any root cause — inadequate cooling, input surge protection, or incorrect motor cable shielding — to prevent recurrence.
What is the typical cost and timeline for LS VFD repair at Synchronics?+
LS drive repair costs range from Rs 8,000 to Rs 35,000 depending on fault severity (capacitor replacement, IGBT swap, board-level repair, or complete rebuild). Standard turnaround is 7-10 working days including diagnostic testing, parts sourcing, repair execution, and hot-run validation. We provide free prepaid courier pickup and delivery across India. Urgent repairs with premium diagnostics complete in 3-5 days at additional cost.
Does Synchronics offer warranty on LS repair work?+
Yes. All Synchronics LS repairs carry a 12-month functional warranty on replaced components and repaired circuits. If a drive fails within 12 months due to the same fault we corrected, we repair it free of charge (parts and labor). We also offer extended warranty plans covering unexpected faults unrelated to the original repair issue.
Can you repair LS PLC and HMI units, or only VFDs and drives?+
Synchronics repairs the entire LS automation portfolio — not just drives. We have dedicated expertise in LS MASTER-K and XBC series PLC repair (corrupted logic memory, Ethernet port faults, I/O card failures), HMI touchscreen repair, and industrial UPS system restoration. Many Indian sugar factories and textile mills use our PLC repair services to restore critical automation systems without costly replacement or program re-engineering.
How do I send my LS 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 LS 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 LS 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 LS 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.
LS Repair Catalog
Showing 1–2 of 2 LS products
Other Brands We Repair in the Same Categories
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