How to File a Solar Warranty Claim (and Get It Approved)
Solar warranties cover equipment, performance, and workmanship — but claims get denied on paperwork. Here is how to file a solar warranty claim successfully.
What each warranty covers
Equipment warranty (panels/inverter defects), performance warranty (output below guarantee), and workmanship warranty (installation). Identify which applies before filing — and confirm who backs it (manufacturer vs installer) since installer bankruptcy voids workmanship coverage.
Documentation that wins claims
Keep the contract, equipment serial numbers, install date, monitoring data showing the underperformance, and photos. Claims fail most often on missing placed-in-service dates or proof of the defect. Register your warranty right after install.
The claim process
Contact the installer first (workmanship) or the manufacturer (equipment/performance) with documentation. Expect an inspection, then repair or replacement per the warranty schedule. If denied, ask for the written reason and check state warranty laws — you have rights.
FAQ
How do I file a solar warranty claim?
Contact your installer for workmanship issues or the manufacturer for equipment/performance. Provide serial numbers, install date, monitoring data, and photos.
Why are solar warranty claims denied?
Mostly missing paperwork (install date, serials, proof of defect) or out-of-warranty conditions like improper installation/DIY modifications. Register warranties and keep everything.
What if my solar installer went bankrupt?
Manufacturer equipment warranties usually survive; workmanship coverage does not. Keep manufacturer warranty docs to file directly with them.
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Sources
- U.S. EIA — electricity rates by state, eia.gov/electricity/monthly
- NREL PVWatts v8 — solar production by location, pvwatts.nrel.gov
- DSIRE — state incentives and net metering, dsireusa.org
- See how every figure on this page is calculated — PVFig methodology.
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