Inverter Fault Diagnostics

A flashing red error light, frequent circuit breaker tripping, or sudden zero power generation can completely disrupt your energy savings. At SG Solar Repair, our licensed electricians specialize in rapid inverter fault diagnostics across all major residential and commercial brands—including Fronius, Sungrow, SMA, and GoodWe. We thoroughly test AC/DC voltages, internal circuitry, and grid synchronization to pinpoint the exact root cause of your system shutdown.

We believe in transparent, single-visit solutions rather than pushing expensive, unnecessary replacements. Using advanced power quality analyzers and clamp meters, we evaluate whether your inverter can be repaired on-site or if a seamless replacement is required. If your equipment is still within its manufacturer warranty, we compile an official diagnostic test report with fault codes to help you lodge a successful replacement claim quickly and without the hassle.