Often the first sign of wear or damage to a compressor or air conditioning unit is that the air conditioner seems to stay on for much longer periods of time than it has in the past, even if the weather is not warmer or the room temperature cooler. Monitor how long the air conditioner is in the cooling cycle.
Yearly maintenance as recommended by the manufacturer can save air conditioning repair costs in the future. Always follow all the recommended maintenance programs and use only approved service technicians. Most air conditioning companies will offer routine service while the unit is under warranty.