Air Conditioner

An air conditioner is a cooling system that removes heat and humidity from your home, keeping indoor spaces comfortable during warm months. Whether you need routine maintenance, a repair, or a full system replacement, understanding your options helps you make smart decisions. From central units to ductless mini-splits, Angi connects you with local pros and resources to keep your home cool all season.
Air Conditioner Service Articles and Advice
Man tuning on electric fuse
When the AC circuit breaker keeps tripping, who to call is your first concern. An HVAC technician can troubleshoot your system and get you back up and running.
woman in kitchen washing dishes springtime
Stay cool this summer and make sure to keep your HVAC system operating efficiently with these spring ac maintenance tips.
Technician repairing air conditioner
This split AC installation checklist will help you plan the project from system selection to mounting.
Woman adjusting temperature in the bedroom
Ever notice that your A/C smells musty when you first turn it on? It's probably mold. Learn how to prevent mold growth in an air conditioner.
An air conditioning unit in garden
Is your outdoor AC unit sticking out like a sore thumb? Check out this guide for six creative ideas on how to hide an air conditioner in your yard.
Home air conditioner unit
You may wonder how to quiet a noisy air conditioner that’s rattling away and disrupting your peace. Learn tips on how to restore peace and quiet to your cool home.
Not sure what kind of upkeep your air conditioner needs? Make sure you’re covering all of your bases with this air conditioner maintenance checklist.
An air conditioner compressor installed outside the house
An oversized AC unit can cause indoor humidity and uneven temperatures. Learn how to correct an oversized air conditioner without replacing it.
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Common Air Conditioner Service Questions

You can buy a new AC capacitor through most big-box home improvement stores, from an HVAC contractor, or from the manufacturer. Use the model number of your air conditioning unit to make sure you purchase the right part for your unit. Also, keep in mind that the cost of this type of part can vary significantly depending on who you purchase it from, so shop around to get the best price.

While you’re busy swapping out that old compressor, now is a great time to have your furnace cleaned and serviced , especially if your home is older and your heating system is as old as your AC unit. Likewise, it’s a good idea to clean your air ducts to ensure air flows properly through the house.

The higher the BTU rating an air conditioner has, the more effective it can be at cooling your space. It will cool off your room faster in the short term. However, over the long term, if the unit has too many BTUs for the space, it can wear down the unit faster and shorten its life span.

An air conditioner’s watt usage depends on multiple factors, including the type of AC unit, its size, and how often you use it. With that said, most central air conditioners consume between 3,000 and 3,500 watts. Meanwhile, window AC units use 900 to 1,400 watts, and portable air conditioners consume 2,900 to 4,100 watts.

You can protect your air conditioner in the winter by turning off the power at the thermostat and performing routine HVAC maintenance in the spring. Regular maintenance, cleaning, and repair of your AC unit helps protect it and extend its life span. If you have a window AC unit, remove it from the window and store it in a dry place during the winter. Window units cannot withstand freezing temperatures. Keeping them in your window also allows cold air to seep into your home.