For example, Whirlpool covers all parts of the mechanical and refrigeration systems (except the air filter) for five years, including labor. Carrier covers the air-conditioning unit and authorized labor for repair or replacement for one year. With Carrier, the refrigeration components, including the compressor, condenser, evaporator, connecting tubing, and refrigeration charge—including labor for repair or replacement—are covered for years two through five under an extended warranty.

With many manufacturers, while the parts may be covered, the labor for replacing such parts as the motor, solenoid, relays, switches, and fans may not be covered by warranty.

And then there is the “Limited Lifetime Warranty.” Amana, for example, offers this and will cover the compressor of a high-efficiency air conditioner or heat pump for as long as you own the house.

The bottom line is to read the warranty and understand what it does and does not cover.

Be advised that a warranty will be void if the air conditioner is worked on by a non-authorized serviceperson and that it does not cover standard maintenance, cleaning, or damage that is caused by negligent maintenance.