Ran super tune up on units. Found older unit do not have drip leg on gas line, Inducer motor pulling high amperage, No drain protection, Leak in evaporator coil, An excessive damage to outdoor coil. Recommended customer replacing unit due to age and the fact that unit runs off of R22 refrigerant. R22 refrigerant is now phased out. Customer has already had advisor out for replacement, And home warranty needed pictures to confirm issues.