There are a couple of ways your unit will indicate that it's starting to fail. Ideally, if you notice any signs, you can start shopping around and find a new one before it completely quits out on you. For example:
Your AC unit struggles to cool your home
Your energy bills have suddenly increased
Your AC unit's starting to make unusual noises
It's more than 10 years old
In some cases, we will only have to repair the unit, not replace it. We can help determine if it's more cost-effective to buy a new one or repair your old one.