Card-Level Diagnostics · Component Repair

Solar Inverter PCB & Circuit Board Repair

When a solar inverter's circuit board fails, many service centres simply replace the whole board — if a spare is even available. Sunce Renewables repairs inverter PCBs at component level, which saves cost and brings back inverters whose boards are discontinued.

  • Control boards
  • Power boards
  • IGBT driver cards
  • Communication cards
  • SMPS / aux supply
  • Display boards

Boards and components we repair

  • Main control / DSP boards
  • Power boards, IGBT and MOSFET stages and gate driver circuits
  • Auxiliary power supplies (SMPS)
  • DC link and filter capacitors
  • Grid relays, contactors and current sensors
  • Communication boards — RS485, Wi-Fi and GPRS dongles
  • Display and keypad boards

How PCB-level repair works

Each board is inspected for burnt tracks, damaged components and dry solder joints, then powered and tested on our bench. Faulty components are replaced with equivalent or better-rated parts, and the repaired board is tested inside the inverter under load before it goes back to site.

Why PCB repair makes sense

  • Usually a fraction of the cost of a new board or new inverter
  • Works for discontinued models with no spares available
  • Shorter downtime when imported spares have long lead times
  • Less electronic waste

Frequently asked questions

Can a burnt solar inverter PCB be repaired?

In many cases, yes. If the board's copper layers are not badly carbonised, damaged components and tracks can be repaired. We confirm repairability after inspection.

Can you repair just the board if I send it?

Yes. You can send the faulty card alone, although sending the complete inverter lets us load-test the repair properly.

Need a solar inverter repaired?

Share your inverter brand, model and error code — our technicians will guide you and share an estimate before any repair starts.