In Buckeye, near Sun City Festival performing Dual preventative maintenance on 2 York split systems. Upon arrival, customer said upstairs unit was not working. Found unit low on charge and blower motor with assembly has failed. Down stairs system is low on charge as well. Unit is intermittently engaging due to a failed capacitor. Inspected coils in attic and both have heavy rust occurring. Systems use R22 which has been phased out. Recommend replacement of both systems due to Freon type, age, and many other conditions. Units are not functioning upon departure.