In Buckeye, near Sun City Festival performing Fall maintenance on a Carrier condenser. Upon arrival, cycled unit into cooing mode. Replaced intake filters and took temperature reading from supply and return. Took volts and amp draws from components. Re tightened Schrader core due to being found loose. Washed and rinsed outdoor coils. Cycled unit into heating mode and took volts and amp draws from components. Found oil on base of blower motor due to seals being worn out. Cleaned flame sensor and remounted on bracket. Cleaned and tightened electrical connections and cabinet.