Refrigerator Linear Inverter Compressor Motherboard Repair in Howrah

🔬 Our Component-Level Repair & Testing Workflow

How every faulty PCB is diagnosed, restored, and calibrated inside our laboratory:

1 High-Voltage SMPS Check

Checking switching DC voltages (3.3V, 5V, 12V, 15V) to protect main MCU processor.

2 IPM & IGBT Rework

Desoldering burnt power transistors; installing OEM modules with high-temp heat paste.

3 Comm Circuit Calibration

Oscilloscope testing of serial communication wave, replacing degraded optocouplers.

4 Full-Load Inverter Rig Test

Run under real compressor & fan motor load on our test rig before return courier.

⚡ Common Faults & Symptoms Restored by Our Engineers:

We repair the following component failures with a 90-day warranty:

✓ Compressor Inverter Frequency Drive Fault (Flashing LED 3/5/6 Times)

✓ Defrost Heater Relay & Sensor Circuit Failure

✓ Evaporator Fan DC Motor Drive IC Blown

✓ Freezer Temperature Sensor (NTC) ADC Drift

✓ Power Supply Switching IC (TNY278 / LNK304) Burnout

✓ Inverter Linear Driver Triac Damage

Domestic Frost-Free & Side-by-Side Refrigerator Inverter Board Repair

Modern frost-free refrigerators run continuously with electronic variable-capacity compressors. When power surges damage the primary SMPS or IPM drive, cooling stops immediately. We repair switching power supplies and compressor pulse drives to restore deep freeze performance.

🏢 Supported Inverter AC & Appliance Brands:

We stock original OEM power modules, IGBTs, bridge rectifiers, and microcontrollers for all brands:

LG Smart Inverter Samsung Digital Inverter Whirlpool Intellifresh Haier Twin Inverter Godrej Bosch

❓ Frequently Asked Questions

Common questions regarding diagnostic bench testing, pricing, and courier handling:

My refrigerator LED flashes 3 or 5 times on the back PCB. What does it mean?

Flashing diagnostic LEDs indicate compressor start failure, IPM over-current, or DC voltage underflow. Our lab repairs these circuits daily.

Do you repair side-by-side multi-door inverter refrigerator motherboards?

Yes, we service motherboards and dispenser control panels for all side-by-side and French door refrigerators.

Are SMPS power supply ICs kept in stock?

We maintain ready stock of TNY266/278, LNK304/306, and VIPer series PWM controllers for instant turnaround.

Do you provide a warranty on repaired inverter boards?

Yes! Every repaired board includes our 90-day replacement and repair warranty for complete peace of mind.

📍 All-India City Pages for Refrigerator Linear Inverter Compressor Motherboard Repair

Click on your city to inspect local courier pickup schedules and turnaround time:

🇮🇳 View National Hub

Delhi NCR

Dwarka Faridabad Ghaziabad Gurugram New Delhi Noida Rohini

Gujarat

Ahmedabad Bhavnagar Rajkot Surat Vadodara

Karnataka

Bengaluru Electronic City Hubballi Mangaluru Mysuru Whitefield

Maharashtra

Andheri Mumbai Nagpur Nashik Navi Mumbai Pune Thane

Rajasthan

Ajmer Jaipur Jodhpur Kota Udaipur

Tamil Nadu

Chennai Coimbatore Madurai Salem Tiruchirappalli

Telangana & AP

Guntur Hyderabad Secunderabad Vijayawada Visakhapatnam

Uttar Pradesh

Agra Kanpur Lucknow Meerut Prayagraj Varanasi

West Bengal

Asansol Durgapur Howrah Kolkata Siliguri

Lab Service Assurance

★ 4.9 (1,420+)

✓
90-Day Full Warranty Official warranty certificate with QR code tracking.
✓
Full-Load Bench Diagnostics Pre-tested on real inverter compressor before dispatch.
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Doorstep Courier Pickup 24 - 48 Hours Express Courier Pickup Across India
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Save 60-70% on Costs Component repair costs far less than replacement boards.

Book Repair Pickup in Howrah 💬 Direct WhatsApp Chat

Need Immediate Phone Advice? 📞 +91 60057 24494

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