Try selling your house if you have a solar system. I've seen companies drag their feet signing assignments, only to hold up and kill escrows..

Leaky roofs are common too.

Warranties that have no backing and aren't with the paper they're written on.

And systems that can't be turned on due to various installer issues. Most contracts don't even require the installer to turn it on, yet homeowners get stuck with the payments to the lender.