We Stand Behind
Every System We Build.
Sol-Ark inverters: 10-year warranty. ECHO LiFePO₄ batteries: 25-year/16,000-cycle warranty. Guardian enclosures: 10-year warranty. Plus real human support 7 days a week.
Sol-Ark Inverters
10 Years
Full manufacturer warranty on all Sol-Ark models (12K, 15K, 18K, 30K, 60K). Covers defects in materials and workmanship. Sol-Ark provides 7-day live technical support.
- All components covered
- Free replacement for defects
- 7-day live tech support
- Firmware updates included
ECHO LiFePO₄ Batteries
25 Years / 16,000 Cycles
Whichever comes first. Covers cell degradation below 80% rated capacity, BMS failure, and manufacturing defects. Hithium 314Ah Grade-A cells.
- 25-year calendar warranty
- 16,000-cycle guarantee
- 80% capacity retention
- BMS included in coverage
Guardian Enclosures
10 Years
Covers the Guardian shell, fire suppression system, thermal barrier, and all mechanical components for normal wear and tear. 1125°F fire rated aerospace-grade aluminum.
- Shell and structure
- Fire suppression system
- Thermal barrier
- Weatherproofing
Phone Support
Call (858) 217-8861. Mon–Fri 7am–6pm, Sat 8am–3pm. Talk to a real person who understands your system — not a call center.
Remote Diagnostics
SunFusion Monitor lets us see your system in real-time. We can diagnose issues remotely and often resolve them without a site visit.
On-Site Service
For SoCal installations, we dispatch technicians for warranty service. For nationwide customers, we coordinate with local certified electricians.
Monitoring Coverage
Third-party monitoring systems (such as Solar Assistant) are provided at no cost as a courtesy and are not designed, built, or maintained by SunFusion Energy Systems. Warranty claims and support requests related to third-party monitoring platforms are not covered under any SunFusion warranty.
SunFusion Monitor is our proprietary cloud monitoring platform, currently being developed and deployed as a premium add-on feature. SunFusion Monitor is available at additional cost and is the only monitoring system supported and serviced by SunFusion. Support for SunFusion Monitor is handled separately from equipment warranties.
Contacting Walter Ellard
As the founder, CEO, and sole owner/operator of a rapidly expanding energy company, Mr. Ellard is extremely difficult to reach by phone. This is the reality of running a business that is growing faster than one person can answer every call.
Best ways to reach us:
- Text message to (858) 217-8861
- Email to info@sunfusion.us
- Leave a detailed voicemail with your name, system info, and issue
Walter reviews every message and will investigate your issue in the background. You will hear back — but it may not be immediate. This is the cost of an ever-expanding business that prioritizes doing the work right over answering every call in real-time.
We're here to help — warranty claims, technical questions, or just advice.
Mr. Ellard reviews every message and will get back to you.

