Photovoltaic Inverter Repairs

INITEC s.r.o. focuses on the repair and diagnostics of photovoltaic inverters from well-known brands and types – string, hybrid, off-grid, single-phase, three-phase and industrial units. We provide professional service for inverters out of warranty or no longer supported by the manufacturer, including testing, measurement and functional inspection.

Why Choose Repair Instead of Buying a New Inverter?

  • We repair string, hybrid and off-grid photovoltaic inverters. We focus on brands such as Huawei, Sungrow, SolarEdge, Fronius, Growatt and GoodWe.
  • We also repair inverters out of warranty or no longer supported by the manufacturer. It does not matter if the manufacturer no longer supports or produces the device – we can still repair it.
  • Free diagnostics and price quote. After receiving the inverter, we perform a technical inspection and provide a repair offer – free of charge and without obligation.
  • No risk – “No cure, no pay”. If the repair is not successful, you pay nothing. Diagnostics is free and non-binding.
  • Significant savings without modifying your system. You keep your original system without needing to replace the unit with a new one.
  • Warranty on the repaired inverter. We provide a warranty on the repaired device and replaced components.
  • We repair inverters for companies as well as households.

What Do We Test and Repair?

  • Cleaning of electronics using ultrasonic cleaners and drying in industrial dryers.
  • Condition of DC and AC sections – inputs, outputs, current circuits
  • Functionality of communication interfaces – RS485, WiFi, Ethernet, CAN
  • Response of voltage and current sensors
  • Testing of protective and safety components – varistors, relays, fuses
  • Condition and performance of cooling systems, fans and thermal sensors
  • Control of power supplies, power modules, IGBT, PWM
  • Repair or replacement of power sections, connectors and burnt components
  • Device testing on test benches simulating real operation
Contact Us

“With us, you gain a partner who takes care of your industrial automation needs
quickly, efficiently, and with a high standard of quality.”