Solar Panels Not Working in San Diego — What to Check First
Concept: Appraisers
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Mini glossary (operator-friendly)
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- Leaf Page
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San Diego has great solar conditions, so when panels stop producing it's usually an inverter issue, a tripped breaker, or a monitoring app glitch — not a panel failure. You can diagnose 80% of issues yourself before calling anyone.
← Electrical Problems Hub — more San Diego guidance
Check these first (no tools needed)
- Look at your inverter — is it showing a green light?
- Red or flashing light = fault code, check the display
- Check your solar app/monitoring dashboard
- Look for any tripped breakers in your main panel
- Check if any tree growth is newly shading panels
- Power outage? Most inverters shut off automatically (safety)
Common issues and fixes
- Inverter fault/error: often clears with restart
- Grid outage: microinverters/hybrids auto-reconnect
- Dirty panels: cleaning can restore 5–25% output
- Single panel underperforming: likely a micro-inverter issue
- Monitoring offline: check Wi-Fi/router, not the panels
When to call a pro
- Inverter won't restart after 24 hours
- Multiple error codes / display is blank
- Physical damage visible on panels or wiring
- System is more than 5 years old with no maintenance
- Production is consistently 30%+ below estimate
One text. Real guidance.
Describe what's going on. We'll give a calm, honest response — no pressure.
Updated March 2026