DC Isolator & Safety Upgrades
Rooftop DC isolators are among the most common points of failure in residential solar systems, often prone to water ingress, moisture buildup, and severe thermal stress under intense summer heat. A degraded or melting isolator poses a serious electrical hazard, creating burning smells, scorching, and potential rooftop fire risks while forcing your system to trip offline. At SG Solar Repair, our licensed electricians provide urgent DC isolator safety checks, complete switch replacements, and comprehensive board upgrades across Werribee and surrounding western suburbs.
We replace substandard or weathered rotary switches with certified, heavy-duty, weather-sealed safety enclosures built to withstand Victorian weather extremes.
From Fault Call to Fixed System in 3 Steps
We make restoring your daytime solar generation fast and painless.
Step 1: Easy Booking
Call our hotline or submit the quick quote form with your inverter model and error light status.
Step 2: On-Site Diagnostic
A CEC technician tests the panels, wiring, and inverter with IV curve and thermal imaging instruments.
Step 3: Fixed-Price Repair
You approve the fixed quote on the spot. We fix the issue, re-commission generation, and email your report.