As a homeowner, it's important to take care of your air conditioning system if you want to keep it working well and lasting a long time. You need to maintain it regularly to make sure it runs properly. The age, model, and how often you use it can affect how long it lasts. By getting it maintained often, you can make it last longer and avoid problems like it breaking down while you need it. Normally, it lasts about 15 years, but taking good care of it may make it last even longer.