Path-Q Solar

When should I call an installer if solar production suddenly drops?

Answer

Call the installer when the drop is sudden, persistent, unexplained by weather or shading, accompanied by a fault or safety warning, or large enough to affect expected operation. Contact them promptly for visible damage, burning smells, water intrusion, repeated shutdowns, or electrical hazards.

Key points

  • Check weather, snow, soiling, shading, utility outages, and monitoring communications first when safe.
  • Use the expected-production baseline rather than a fixed percentage threshold for every system.
  • Escalate immediately for smoke, fire, arcing, exposed conductors, damaged equipment, or unusual heat.
  • Preserve monitoring records, fault codes, photos from a safe distance, and dates.
  • Do not open equipment, bypass protections, or attempt electrical repairs.

What it depends on

  • Size and duration of the production drop
  • Weather and site conditions
  • Monitoring and inverter diagnostics
  • Equipment warranties and service responsibilities

Risks and trade-offs

  • Waiting can increase lost production or allow damage to worsen.
  • A service visit may be unnecessary if the issue is only weather or communications.
  • Unsafe DIY troubleshooting can create shock, fire, or warranty risks.

Information you may need

  • Production history and expected output
  • Fault codes and monitoring timestamps
  • Weather, utility, and shading conditions
  • Installer and warranty contacts

Your next step

What to do next

Perform safe external checks, document the change, and open a service request promptly if the shortfall persists or any safety symptom appears.

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SQ00154