Existing-system solar repair across Southern California.
MK3 serves Southern California homeowners with existing solar systems that stopped producing, lost monitoring, show equipment faults, or no longer have reliable installer support—including the Inland Empire and select Los Angeles-area calls.
Start with the problem. We’ll help identify the right repair path.
Start with what the system is doing. MK3 can then direct you to the right repair path for diagnostics, inverter faults, monitoring issues, equipment problems, or installer-related support.
Solar system not working
Zero production, sudden drops, unclear errors, or a system that simply stopped behaving normally.
Inverter error repair
Fault lights, codes, repeated shutdowns, offline equipment or inverter-related production loss.
Installer out of business
Independent repair support when the original solar company closed, entered bankruptcy or stopped responding.
Tell us what your solar system is doing.
Start with the symptom, equipment brand, ZIP code, and any error message you can see. MK3 will use that information to route the service request.
Tell us what your solar system is doing.
Share the basics about the system, the issue you are seeing, and where service is needed. MK3 will use those details to route your request.