What is the standard warranty for an air conditioning unit?

The standard warranty for an air conditioning unit varies depending on the manufacturer, type and model. Most air conditioners come with a standard parts replacement warranty, but the length of the warranty can vary from less than 2 to more than 10 years.

Carrier offers a 10-year parts replacement warranty on many of its air conditioners, as of 2015. In addition, most Carrier air conditioners also come with an additional 10-year warranty on the unit's compressor. Fujitsu only offers a two-year parts warranty and a six-year compressor warranty, while Trane and Lennox offer a variety of different warranty lengths for their various models of air conditioners.

The length of the parts and compressor warranties for most Lennox air conditioners ranges from 5 to 10 years, while the Trane air conditioner warranties can range anywhere from 1 to over 12 years. Trane also offers different warranty lengths depending on whether the product was registered online within 60 days from the commencement of the warranty.

Amana offers a much better compressor warranty than many other brands, as some of its models feature a lifetime unit replacement warranty on the compressor. This warranty states that Amana must provide a new replacement unit at no charge should the compressor ever fail due to a defect in workmanship or materials.