It depends a lot on the quality of the unit, and where you live (how much it runs.) Here in Texas 10 years is not great, and 15 years is pushing it.
If its a copeland scroll compressor it should be Life time..
About 15 years
in residential air conditioning about 15 years
Why is RPM (speed) so important to the life of a compressor
As far as house applications you want your thermistat set to no lower that 66F. Not just because of the bill, but also it will shorten the life of the compressor and those are monsterously expensive. To give you an idea of how it affects it, The normal life span of a compressor cand be up to thirty years. When you continously crank the thermistat year after year to 66F or below the life span can go as low as ten years!
Zero Ice reduces the amp pull on the AC and helps extent the life of the compressor. It averages between $100 - 200; depending on where you live, and service fees, ect.
to have a good life
Average life expectancy on most central AC units is about 15 years. If it keeps leaking freon, replace it and the lines going to the heat exchanger. Also, be sure the heat exchanger is not the problem (the part inside the house with the furnace that feed air into the ducts). You may be able to get a few more years out of it by repairing it now, depending on what's wrong.
The life span and overall maintenance of the air conditioning clutch can have a lot of impact on the life and efficiency of the vehicle's entire air conditioning system. It is important to understand how to inspect and change your vehicle's air conditioning clutch.. So i suggest you ask some advice from professionals or go to the nearest center that offers 24/7 Air con emergency services.
I would go with Carrier. I have lived in Florida all my life and I am very familiar with heating and cooling using central air. I also use air conditioning in my car.
10 years
10 years