How much to replace compressor on ac unit

What Is an AC Compressor?

The AC compressor is the central part of your central air system. If it’s not working properly, you’ll quite literally be feeling the heat. Here’s how it works in simple terms:

The aptly named component compresses the refrigerant and raises its temperature, which results in a high-pressure gas that gets pushed to the outdoor coil of the unit. There, the heat is released as it condenses into liquid form. This liquid gets sent back indoors to transform into a gas again, this time to suck out the warm heat from the interior. Then, the cycle begins again.

Factors That Affect AC Compressor Costs

There are a number of factors that will determine the final cost of an AC compressor for homeowners. While it is possible to repair a damaged compressor, it might be better to replace it so that you can ensure the efficiency of the entire cooling system. An experienced HVAC professional will be able to tell you what’s the best course of action for your air conditioner.

Warranty

Like with all home appliances, repair and replacement costs will depend on if there’s any time left on your warranty. If you had a recently installed AC compressor conk out on you, chances are good that if you nabbed a warranty, there’s still time to get it repaired or replaced at a lower cost. It can cost anywhere between $600 and $1,200 to replace a compressor that’s still under warranty and about double if the warranty expired. However, if you let your warranty lapse, you’ll have to pay it all out of pocket.

Type

There are three basic types of compressors: single stage, two stage and variable speed. A single-stage compressor will cost anywhere between $250 and $1,200, while a two-stage compressor price range is between $1,000 and $2,000. If you need to replace a variable speed compressor, expect to pay between $1,500 and $2,800.

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Brand

As with many home appliances, the brand will also affect your new AC compressor cost. You can save several hundreds of dollars, depending on the number of BTUs it has. Consult with an HVAC professional to see which brand will work best; you might be able to get away with a more budget-friendly generic unit. If the better strategy is to go with one that matches the brand of your current AC, know that you might still have options, as multiple brands might be under the same parent company and are therefore compatible.

Size

Larger AC compressors will cost more than smaller ones, and they’ll need more coolant, too. This is usually measured in terms of British thermal units, or BTUs. Most residences will require an AC system between 12,000 and 60,000 BTUs. If you’re on the smaller end of this range, expect to pay between $325 and $1,000. If you need one closer to 60,000 BTUs, expect a range of $810 to $1,420. 

Season

There’s a reason homeowners are encouraged to run a test of their HVAC systems in the off-season—there can be a premium on any repair or installation work that needs to be done to get it up and running for the current season. You might not be thinking about the dog days of summer in early spring or on a crisp fall afternoon, but that’s when HVAC installers and the necessary components are easier and cheaper to come by.

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How to Maintain an AC Compressor

A well-maintained HVAC system is one that will last as long as possible. Manufacturers might even require ongoing service appointments from a professional technician in order to comply with the warranty. If you don’t make an appointment for a yearly service call, you might not be able to take advantage of any discounts or freebies should something go wrong with your AC compressor before the warranty expires.

Aside from scheduled maintenance appointments, it’s important for homeowners to keep the outdoor AC unit clean and free from dead leaves or other yard debris that could prevent it from working well.

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Frequently Asked Questions (FAQs)

Can I replace my own AC compressor?

It is possible, though you’ll have to file this task under the advanced category of DIY due to the amount of work and tools that are needed. While you might be eager to save money on hiring a professional, here’s a very good reason why it’s worth it do so: The odorless refrigerant could cause illness or even death if you inhale too much of it. Additionally, you could void the warranty if you install it incorrectly.

Avoid a very expensive and potentially lethal mistake by having it installed correctly by a pro the first time.

Is an AC compressor expensive?

An AC compressor can be costly if you purchase one after the warranty has lapsed. However, depending on the type and age of your current air conditioner, it might be well worth the money because you will extend the life of your AC system.

How long do AC compressors last?

An AC compressor can last anywhere between 10 and 15 years, depending on usage. If you adhere to a regular maintenance schedule—the pros recommend at least once a year—you can reach the higher end of this timeline.