Preformed maintenance check on Trane package unit, system for the age of 14 is actually in pretty good condition. Homeowner has a home warranty that he wants to do all repairs through however I did speak to homeowner about some recommendations that we should address. The home warranty won’t cover these items. I suggested adding a surge protector to protect the parts in unit. Also suggested adding a drain clean out and safety switch to prevent drain backups. He mentioned doing maintenance yearly so I gave info on our maintenance plans and suggested cleaning outdoor coil otherwise it was in good condition and running at departure.