Performed one system HVAC inspection today. I’ll educate customer on the home. Care plan in all of its benefits, but customer denied and just wanted to get a HVAC inspection done today. I flushed drain lines got amp draws and tested water safeties. System has great Delta T and the refrigerant levels are good for 45° weather. I checked all the electrical components on the outdoor and indoor and everything is in specs. I also checked the suave bulb. Customer did have a dirty filter and did not have an extra one. I went to Home Depot and purchased one and installed it for her and collected payment. Customer is happy no problems with this unit at this time.