San Diego County · Independent Service
SunFusion & Sol-Ark System Service in San Diego
Independent diagnostics, troubleshooting, programming, parts sourcing, and repair support for SunFusion solar and battery systems using Sol-Ark hybrid inverters.
Having trouble with a SunFusion Energy Systems installation using a Sol-Ark 12K, 15K, 18K, or 18KPV hybrid inverter? SHS Power provides independent service for San Diego homeowners who need help diagnosing, repairing, reprogramming, or evaluating an existing SunFusion system.
Need Help With an Existing SunFusion System?
When the original installer is difficult to reach, no longer providing local field service, or unable to resolve a system problem, homeowners may be left unsure who can work on the equipment.
SHS Power provides independent service for existing SunFusion solar and battery installations throughout San Diego County. We are not affiliated with SunFusion Energy Systems or Sunfusion Solar Electric — but we can evaluate many of the electrical, inverter, battery, communication, programming, monitoring, and installation issues that affect these systems.
Because SunFusion installations may contain different batteries, inverters, monitoring devices, and electrical configurations, an on-site diagnostic is usually required before recommending repairs.
Our first step is to determine whether the issue can be:
- Diagnosed and repaired
- Corrected through programming
- Resolved through electrical work
- Addressed with replacement components
- Referred to the equipment manufacturer
- Modernized with newer equipment
SunFusion Systems Use Serviceable, Off-the-Shelf Equipment
SunFusion systems were commonly built using established solar, battery, inverter, electrical, and communication components — not equipment that can only be serviced by the original installer. Many installations use Sol-Ark hybrid inverters, standard lithium battery components, common electrical protection equipment, solar panels, disconnects, and communications wiring.
This means homeowners are not necessarily locked into the original SunFusion installer for future service. Depending on the system configuration, SHS Power can often:
SunFusion Systems With Sol-Ark Inverters
Many SunFusion solar and battery installations use Sol-Ark hybrid inverters to manage solar production, battery charging, grid interaction, backup power, and generator integration.
Sol-Ark 12K
Commonly used in residential solar and battery installations. SHS Power can evaluate fault codes, battery communication, solar production, charging/discharging, backup operation, and time-of-use programming.
Sol-Ark 15K
Often used for larger residential systems and whole-home backup applications. Can manage several energy sources and loads simultaneously — problems may involve configuration rather than a failed inverter.
Sol-Ark 18K
Used for higher-capacity solar, battery, and backup applications. SHS Power can evaluate solar production, battery communication, backup performance, export programming, and generator integration.
Sol-Ark 18KPV
Larger SunFusion installations may use the 18KPV for expanded solar and storage capacity. Repairability depends on inverter model, firmware, battery type, and installer credentials.
We also inspect SunFusion Echo battery systems connected to Sol-Ark equipment, grid-connected and zero-export Sol-Ark systems, and Sol-Ark systems with generator integration.
SunFusion Battery and Solar Troubleshooting
The symptom visible to the homeowner may not identify the actual cause. A battery that appears to have failed may instead be affected by programming, communication, wiring, inverter settings, or a protective shutdown.
Common service issues SHS Power can evaluate:
Battery Not Charging
- ·Incorrect Sol-Ark programming
- ·Battery communication failure
- ·Inverter fault
- ·Battery management system protection
- ·Tripped breakers or disconnects
- ·Solar input problems
- ·Grid-charging settings
- ·Time-of-use programming
Battery Not Discharging
- ·Discharge settings disabled
- ·Time-of-use schedule incorrect
- ·Battery reserve set too high
- ·Battery communication fault
- ·Discharge-current limit
- ·Backup-load wiring problem
- ·Inverter operating mode
- ·Battery management system protection
Backup Power Not Working
- ·Backup loads connected incorrectly
- ·Transfer equipment not operating
- ·Battery reserve set too low
- ·Sol-Ark operating mode misconfigured
- ·Battery unavailable due to a fault
- ·Grid-forming settings disabled
- ·Battery communication failure
- ·Insufficient battery capacity
What Is Included in a Diagnostic Visit?
Our standard diagnostic process covers the following, depending on the system and the reported problem.
Equipment Identification
We identify the inverter, battery modules, battery management equipment, gateways, monitoring hardware, disconnects, breakers, and other major components.
Visual Inspection
Accessible wiring, conduit, terminations, communication cables, equipment condition, breakers, disconnects, and visible signs of overheating or damage.
Operating Review
Available inverter and battery status, fault codes, production data, battery state of charge, grid readings, load readings, and system operating mode.
Electrical Testing
Where appropriate and safe: voltages, breakers, disconnects, connections, solar inputs, battery circuits, and backup circuits.
Programming Review
Available Sol-Ark settings that affect battery charging, discharging, backup reserve, grid charging, time-of-use, solar priority, generator, and export behavior.
Repair Recommendation
After diagnosis, we explain what we found and provide the available repair, programming, replacement, or upgrade options.
Replacing the battery or inverter without first identifying the cause can be expensive and may not solve the problem. SHS Power begins with a diagnostic visit to identify the actual cause before recommending parts or replacement equipment.
What to Send Before the Appointment
To help us prepare, please send clear photos of the following. The more information we receive before the appointment, the better prepared our technician can be.
Disclaimer
SHS Power is an independent service contractor. We are not affiliated with SunFusion Energy Systems, Sunfusion Solar Electric, Sol-Ark, or their related companies. Brand names and trademarks belong to their respective owners.
Any existing installer or manufacturer warranty remains subject to its original terms and conditions. Diagnostic labor, troubleshooting, travel, programming, and replacement work may not be covered by the original warranty.
Equipment service, programming access, parts availability, monitoring access, and warranty eligibility vary by system.
Why Choose SHS Power?
Veteran-owned. San Diego local. Brand-agnostic support with honest diagnostic process.
Sol-Ark & Battery Experience
We understand systems that combine hybrid inverters, lithium batteries, solar production, utility power, generators, backup loads, and monitoring.
Access to Common Replacement Components
SunFusion installations commonly use commercially available equipment. SHS Power can often source required components through established suppliers.
Licensed Electrical Contractor
Solar and battery systems contain high-voltage electrical equipment and should only be diagnosed and repaired by qualified professionals. CSLB #1082533.
Honest Diagnostic Process
We identify the cause of the problem before recommending expensive equipment replacement.
Programming & Energy Management
Many battery-system problems involve operating settings rather than failed hardware. We evaluate programming as part of every diagnostic.
Local San Diego Service
SHS Power is based in San Diego County. We provide on-site support — not a 1-800 number in another state.
Frequently Asked Questions
Is SHS Power affiliated with SunFusion Energy Systems?
No. SHS Power is an independent solar and electrical contractor. We are not affiliated with SunFusion Energy Systems or Sunfusion Solar Electric. Brand names and trademarks belong to their respective owners.
Can you service a SunFusion system with a Sol-Ark inverter?
Yes. SHS Power can inspect and troubleshoot many SunFusion installations built around Sol-Ark 12K, 15K, 18K, and 18KPV hybrid inverters. Service may include fault-code diagnosis, battery communication, solar production, backup operation, system programming, monitoring, and electrical troubleshooting.
Are replacement parts available for SunFusion systems?
In many cases, yes. SunFusion systems commonly use off-the-shelf components from established solar, battery, inverter, and electrical manufacturers. SHS Power can identify the installed equipment and often source the same component or a compatible replacement. Availability depends on the exact model and age of the equipment.
Can you service a SunFusion Echo battery?
We can inspect and diagnose many electrical, inverter, battery, communication, programming, and installation issues involving SunFusion Echo systems. Repairability depends on the exact configuration, reported fault, and availability of compatible parts.
Can you reprogram a Sol-Ark inverter?
In many cases, we can review and adjust available Sol-Ark operating settings. Access may depend on the inverter model, firmware, account credentials, battery configuration, system design, and whether installer-level access is available.
Why is my Sol-Ark inverter not charging the SunFusion battery?
Possible causes include incorrect battery settings, communication faults, charge limits, time-of-use programming, battery protection, wiring problems, solar input problems, grid-charging settings, or failed components. Replacing the battery without first identifying the cause can be expensive and may not solve the problem. An on-site diagnostic is usually required.
Why does my Sol-Ark system fail during a power outage?
The issue may involve backup-load wiring, battery reserve settings, transfer operation, inverter programming, low battery state of charge, excessive household load, battery communication, or breakers and disconnects. We can inspect the system and determine why backup power is not operating correctly.
Can you restore SunFusion monitoring?
Possibly. It depends on whether the problem involves the home network, Wi-Fi, communication hardware, gateway equipment, account access, Sol-Ark monitoring, or manufacturer-hosted monitoring. When direct access cannot be restored, we can evaluate compatible monitoring or replacement communication options.
How much does a diagnostic visit cost?
SHS Power's standard solar and battery service visit is $275. This includes the initial on-site diagnostic and troubleshooting. If additional repairs, replacement parts, programming, or specialized work are required, we provide the available next-step options after the diagnosis.
What areas do you serve?
SHS Power services SunFusion solar, battery, and Sol-Ark inverter systems throughout San Diego County and nearby Southern California communities.
Need Service for a SunFusion or Sol-Ark System?
If your system is offline, not charging, not discharging, not providing backup power, or no longer reporting correctly — SHS Power can help identify the problem and explain the available options.
CSLB #1082533 · Veteran-Owned · San Diego Local