For this job, I worked on a super tune up on this heat pump system. I went through all the mechanical and electrical parts of the system and checked for maximum efficiency. Filter was changed and outside condenser was washed. Refrigerant levels were on point. UV Bulb was recommended for her second UV system that customer has, customer rejected and mentioned she will only keep the UV system she recently bought. Thank you for choosing Comfort Experts, have a great day!