⚠️ Before you call: Have your equipment serial numbers, original install date, address, photos of the issue, and monitoring data ready. Most manufacturers will reject a claim if you can't supply the panel/inverter/battery serial number. See our RMA process guide for the full documentation list.
Solar panel manufacturers
| Manufacturer | Phone | Email / RMA URL | Notes |
|---|---|---|---|
| Maxeon (formerly SunPower IBC panels) | 800-786-7693 | maxeon.com/contact | 25-year product + performance warranty. Active for systems sold under SunPower brand pre-bankruptcy. |
| Qcells (Hanwha Solutions) | 949-748-5996 | qcells.com/us/contact | 25-year warranty. US factory in Cartersville GA + Dalton GA assembly. |
| SEG Solar | 713-955-1700 | segsolar.com/contact | BNEF Tier 1; Houston TX HQ; 30-year linear warranty. |
| Silfab Solar | 905-282-6686 | silfabsolar.com/contact-us | 25/30-year product warranty depending on model. |
| REC Solar (Group) | 877-332-7327 (US) | recgroup.com/en/contact-us | 25-year ProTrust warranty (covers labor) on REC Alpha Pure series. |
| Mission Solar Energy | 210-531-8600 | missionsolar.com/contact-us | San Antonio TX-manufactured; 25-year warranty. |
| Heliene | 705-575-5555 | heliene.com/contact-us | Mountain Iron MN + Ontario manufacturing; 25-year warranty. |
| First Solar (CdTe thin-film) | 602-414-9300 | firstsolar.com/Contact-Us | 25-year warranty. Predominantly utility-scale; some commercial. |
| Solar4America | 803-400-1234 | solar4america.com/contact | South Carolina manufacturing; 25-year warranty. |
| Trina Solar | 800-696-7114 (US) | trinasolar.com/us/contact-us | 25-year warranty. Note: Chinese parent — verify FEOC compliance for 48E projects. |
| JA Solar (US) | 408-586-0000 | jasolar.com | Phoenix AZ assembly planned; verify FEOC. |
| Jinko Solar | 415-682-9982 | us.jinkosolar.com/contact-us | Florida assembly facility. |
| Canadian Solar | 888-998-7739 | canadiansolar.com/contact-us | 25-year warranty. |
| LONGi Solar | 949-833-7600 | longi.com/en/contact-us | Major Chinese brand; 25-year warranty; FEOC concerns for 48E. |
| Boviet Solar | 510-687-9388 | bovietsolar.com/contact-us | Vietnam-manufactured; verify FEOC ownership status. |
| VSUN Solar (Vietnam) | via distributor | Through your distributor | Generally NOT FEOC-compliant for 48E projects. |
| SolarTech Universal | 561-395-1900 | solartechuniversal.com | Florida-based; smaller-volume residential/commercial. |
Inverter manufacturers
| Manufacturer | Phone | Support / RMA URL | Notes |
|---|---|---|---|
| Enphase Energy | 877-797-4743 | enphase.com/support | Microinverters, IQ Battery, IQ Combiner. 24/7 support; remote diagnostics. RMA filed via Installer Portal. |
| SolarEdge | 877-360-5292 | solaredge.com/us/support | String inverters + power optimizers. Mon-Fri 6am-7pm PT. |
| Tesla Energy | 877-961-7652 | Via Tesla App support | Solar Inverter + Powerwall 3. Support routed through Tesla App. |
| Sol-Ark | 972-575-8875 | sol-ark.com/contact-us | Hybrid inverters. Allen TX HQ. Strong installer-network support. |
| EG4 Electronics | 903-374-0530 | eg4electronics.com/contact | Hybrid inverters, batteries. Sulphur Springs TX. Direct-to-consumer support model. |
| Generac (PWRcell) | 855-635-5436 | generac.com/contact-us | PWRcell hybrid inverter + battery. Wisconsin HQ. |
| SMA America | 888-476-2872 | sma-america.com/service | String inverters, Sunny Boy/Tripower. Rocklin CA support center. |
| Fronius USA | 219-734-5500 | fronius.com/en-us/usa/solar-energy/contact | String inverters; Portage IN US HQ. |
| Schneider Electric / Conext | 800-265-3303 | se.com/us/en/work/support | Off-grid + commercial inverters. |
| Outback Power | 360-435-6030 | outbackpower.com/support | Off-grid hybrid inverters; Arlington WA. |
| Magnum Energy / Sensata | 425-353-8833 | sensata.com | Off-grid + mobile inverters. |
| Hoymiles | via distributor | hoymiles.com/contact | Microinverters; Chinese brand. NOT FEOC-compliant. |
| APsystems | 844-280-6090 | usa.apsystems.com/contact-us | Microinverters; Chinese parent. Verify FEOC. |
| Deye / Sunsynk | via distributor | en.deye.com | Hybrid inverters; Chinese brand. |
| Growatt | via distributor | en.growatt.com/contact | Hybrid inverters; Chinese brand. |
Battery manufacturers (residential)
| Manufacturer | Phone | Support URL | Notes |
|---|---|---|---|
| Tesla Powerwall | 877-961-7652 | tesla.com/support/energy | Powerwall 3 (LFP, integrated PV input). Claim via Tesla app. |
| Enphase IQ Battery | 877-797-4743 | enphase.com/support | IQ Battery 5P / 10C; LFP; AC-coupled. |
| FranklinWH | 855-321-2378 | franklinwh.com | aPower 2 (LFP, 15 kWh). Sunnyvale CA. |
| HomeGrid (formerly UnGrid) | 713-489-5290 | homegridenergy.com | Stack'd Series LFP residential battery. Houston TX. |
| EG4 (PowerPro / EG4-LL series) | 903-374-0530 | eg4electronics.com/contact | Rack-mount LFP residential battery; Sulphur Springs TX. |
| SimpliPhi (Briggs & Stratton) | 800-743-4115 | simpliphipower.com/contact-us | LFP residential. Wauwatosa WI. |
| Generac PWRcell | 855-635-5436 | generac.com/contact-us | NMC older units; LFP transition underway. |
| Sonnen / Sonnencore | 855-987-7666 | sonnenusa.com/en/contact | German-engineered; Tucson AZ assembly. |
| BYD Battery-Box | via distributor | byd.com/en/support | Chinese parent. NOT FEOC-compliant for 48E. |
| HuaWei FusionSolar | via distributor | solar.huawei.com | Chinese parent. Restricted in US for FEOC + sanctions. |
| LG ESS Home | 800-243-0000 | lg.com/us/business/ess | Older NMC chemistry; 2017–2021 vintage; some safety recalls — check serial. |
| SolArk Hybrid Battery (paired) | 972-575-8875 | sol-ark.com/contact-us | Hybrid inverter + paired battery; Allen TX. |
Racking / mounting
| Manufacturer | Phone | Support URL |
|---|---|---|
| IronRidge | 800-227-9523 | ironridge.com/contact-us |
| Unirac | 505-242-6411 | unirac.com/contact-us |
| SnapNrack | 805-528-0848 | snapnrack.com/contact |
| Quick Mount PV (Esdec) | 925-478-8269 | quickmountpv.com/contact |
| EcoFasten (Esdec) | 877-859-3947 | ecofastensolar.com/contact-us |
| S-5! | 888-825-3432 | s-5.com/contact-us |
| SunModo | 360-844-0048 | sunmodo.com/contact |
| Roof Tech (Pegasus) | 877-756-3776 | roof-tech.us/contact |
| Nuance Energy (Osprey) | 800-680-5921 | nuanceenergy.com/contact |
| RBI Solar (Gibraltar) | 800-936-7659 | rbisolar.com/contact-us |
Third-party warranty providers
| Provider | Phone | Support URL | Notes |
|---|---|---|---|
| SolarInsure | 877-330-3950 | solarinsure.com/contact | SI-30 30-year warranty covering panels, inverters, racking, batteries, labor, roof leaks. Backed by A.M. Best A+ rated carrier. Transferable with property. |
| Solartime USA / Solar Insurance Group | via partner installer | Installer-administered | Various extended warranty products. |
⚠️ Verify before relying on these numbers. Manufacturer support phone numbers and email addresses change. Always cross-check with the brand's official website at the time of your warranty claim. If a manufacturer has gone out of business or been acquired, the warranty servicing entity may be different from the brand on the panel.
Frequently asked questions
How do I find the panel serial number?
Serials are stamped on a sticker on the back of the panel (junction box side). Your installer should have a Bill of Materials with all serials. If they don't, removing one panel to read the serial is a non-trivial roof job — ask the installer to document serials at the time of install.
What if the manufacturer rejects my warranty claim?
Common rejection reasons: incomplete documentation, system not properly commissioned, unauthorized modifications, no installer-of-record, or the product was discontinued. If you believe the rejection is wrong, escalate via the manufacturer's customer-care escalation team, then BBB complaint, then state attorney-general consumer-protection division as a last resort.
Do warranties transfer when I sell my house?
Most manufacturer warranties (Maxeon, Qcells, Enphase, Tesla, etc.) DO transfer with the property — the buyer just needs the original install paperwork. Installer workmanship warranties typically DO NOT transfer (they're tied to the original homeowner). Third-party warranties like SolarInsure are designed to transfer with the property — that's one reason they're worth the up-front cost.