Low Production Issues
Problem: System Producing Less Than Expected
Possible Causes:
- • Shading from trees, buildings, or balcony railings
- • Dirty panels (dust, bird droppings, pollen)
- • Incorrect orientation or tilt angle
- • Loose connections or damaged cables
Solutions:
- ✓ Check for shading throughout the day and adjust panel position
- ✓ Clean panels with water and soft cloth (avoid harsh chemicals)
- ✓ Verify orientation is South-facing (or best available direction)
- ✓ Inspect all connections and cables for damage
Problem: Inverter Not Working / Error Codes
Common Error Codes:
- • Grid Fault: Utility power issue or improper connection
- • Overvoltage: Too much power from panels (rare with microinverters)
- • Ground Fault: Electrical safety issue requiring professional help
Solutions:
- ✓ Check utility power is on and outlet is working
- ✓ Unplug and replug inverter (wait 30 seconds)
- ✓ Consult inverter manual for specific error code meaning
- ✓ Contact manufacturer support if problem persists
Problem: System Not Connecting to Grid
Check These First:
- • Outlet is properly grounded (3-prong outlet)
- • All cable connections are secure
- • Inverter is receiving power from panels (check LED indicators)
Prevention Tips
Regular Maintenance
Clean panels monthly, check connections quarterly, inspect cables for damage seasonally.
Proper Installation
Follow manufacturer instructions, use proper mounting hardware, ensure secure connections.
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Pro Tip
Most issues are simple to fix. Start with basic checks (connections, cleanliness, shading) before assuming major problems. Compare your actual production to expected values using our free calculator.