🔬 Our Component-Level Repair & Testing Workflow
How every faulty PCB is diagnosed, restored, and calibrated inside our laboratory:
Checking switching DC voltages (3.3V, 5V, 12V, 15V) to protect main MCU processor.
Desoldering burnt power transistors; installing OEM modules with high-temp heat paste.
Oscilloscope testing of serial communication wave, replacing degraded optocouplers.
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:
Commercial VRV & VRF Multi-Split HVAC Electronic Controller Overhaul
VRV and VRF systems utilize sophisticated master-slave networking and dual-inverter compressor topologies. Our commercial HVAC electronics division specializes in component-level restoration of high-power inverter drive modules, active power factor correction (PFC) stages, and multi-drop communication buses.
🏢 Supported Inverter AC & Appliance Brands:
We stock original OEM power modules, IGBTs, bridge rectifiers, and microcontrollers for all brands:
❓ Frequently Asked Questions
Common questions regarding diagnostic bench testing, pricing, and courier handling:
Do you repair commercial VRV / VRF inverter driver boards?
Yes, we repair high-capacity commercial VRV and VRF outdoor master inverter modules for Daikin, Mitsubishi, LG, Voltas, and Blue Star systems.
What is the turnaround time for emergency commercial HVAC board failures?
Emergency priority bench diagnosis takes 12 to 24 hours with dedicated same-day courier dispatch.
Do you test the communication bus between master and indoor units?
Yes, our testing rig simulates 16 indoor units simultaneously over DIII-NET and RS-485 serial loops.
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 VRV / VRF HVAC Master Inverter Board Repair & Commissioning
Click on your city to inspect local courier pickup schedules and turnaround time: