Nobody will service the system
A panel is offline or an inverter has failed and there is no one to call. Warranty paperwork points at a company that no longer answers.
The number is disconnected, the website is down, or the business now trades under a different name. The monthly payment, meanwhile, has carried on exactly as before.
A panel is offline or an inverter has failed and there is no one to call. Warranty paperwork points at a company that no longer answers.
Financing is usually held by a separate lender, and their arrangement with you continues whatever happened to the installer.
Whoever held your file may not exist any more, which makes assembling the documents harder — not impossible.
Equipment warranties often sit with the manufacturer rather than the installer, so some of the cover may still be live. Some of it may not.
Untangling who holds what is most of the work here.
Anything with a company name on it is useful.
All three end up in the same place. Pick whichever one matches what you have in front of you.