Condenser cap has failed and burned some wires. Fan cap is not far behind. Replaced fan and compressor cap with new capacitor. Upon inspection of indoor unit Noticed bad seal on return due to improper hanging of plenum. Seal around copper/ liquid line coming into Evap coil is gone. Letting cold air into attic. Drain pan is almost rusted out. 20 degree temperature split measured. Unit in good working order upon departure. Left estimates for recommended repairs. Informed dispatch to schedule maintenance within next couple weeks. Sent estimates to customer so that we may be able to get both done at once.