I agree with the others. Talk to your agent. In my Tommy's World, we would review the inspection report, go over the Property Disclosure, and renew it if needed. It is better to err on the side of over disclosure in my opinon.
More importantly, issues that come up should be repaired, they will come up again. Be ahead of the game, and remove potential objections before the next buyer inspects the home.
A functional Thermostate is OK, but if the cover is off... it is broken as far a a buyer is concerned.
I once had a real Junky Chevy Vega, among other things it had a worn out transmission. I had no problem shifting it, but any one else, could not shift it at all. I was ok with it the way it was. But no one else would drive it, much less want to buy it, because of the lousy shifting tranny.
What is acceptable to you, may not be to a buyer, your agent should be encouraging you to think about what a buyer sees when they tour your home.
Good Luck with your sell.