5 signs your solar system needs service

First, an unexpected increase in your bimonthly electricity bill is the clearest indicator of an underperforming system. When solar production drops, your premises draw significantly more power from the grid to compensate.

Second, check your solar inverter display panel. Inverters are equipped with status indicator lights and diagnostic screens. A flashing amber or red error light, frequent restarting cycles, or fault codes signal internal overheating, grid synchronization errors, or ground leakage issues requiring certified technician inspection.

Third, look for physical dust, bird droppings, or algae buildup on panel glass. Kerala’s humid climate encourages lichen and fungal growth along lower module frames. When dirt blocks sunlight, affected cells overheat, creating localized hotspots that impair the output of the entire electrical string.

Fourth, inspect the balance of system wiring, conduit runs, and isolator switches. Rodent chewing, weathered insulation, or corroded electrical connections introduce resistance, which reduces power generation and creates fire safety risks.

Fifth, physical damage or microcracks on panel glass from fallen tree branches or severe weather can degrade internal silicon cells. Even small surface cracks let moisture enter the panel layers, leading to internal corrosion.

Scheduling routine inspections ensures that small faults are detected and corrected promptly. Professional diagnostic testing, voltage checks, and scheduled washing preserve equipment health and ensure steady solar energy production throughout the year.