The answer to 'how often to replace air conditioner' is that most air conditioning units should be replaced every 10-15 years. Air conditioners are complex machines with many moving parts that wear out over time, and older units become less efficient and more prone to breakdowns. Replacing your AC unit every 10-15 years can help ensure reliable cooling and prevent unexpected failures.
The lifespan of an air conditioner can vary based on factors like usage, maintenance, and climate. Units in hotter climates or that run more frequently may need to be replaced sooner. Proper maintenance like annual tune-ups and filter changes can also extend the unit's lifespan. If your AC is over 10 years old, it's a good idea to have a professional inspect it and provide recommendations on whether replacement is needed.