For this call I performed a super tune-up on both units. Homeowner stated that the house is for sale and in the closing process but failed inspection due to low Delta in cooling on the new unit. Upon inspection I did note that both units had mild to severe dirty air filters, after replacing the air filters both units were running within normal spec limits. Pictures of Delta with thermal camera in the noted area are attached to summary under miscellaneous pictures. Pictures of Delta from return to supply plenum or also attached to miscellaneous pictures. Pictures of normal refrigerant level are also attached under miscellaneous pictures. All components within heating and cooling parts of the system were running within normal spec limits. No significant abnormalities noted aside from dirty air filters. Thank you for choosing Comfort experts, have a great day!