Can you replace just the compressor on a home AC?

Author: Norma Davis  |  Last update: Tuesday, June 24, 2025

If the compressor is not under warranty, you may still choose to replace it. However, you should probably opt to replace the entire outdoor unit at the same time. In most cases, this will cost only marginally more than replacing an out-of-warranty compressor alone. Which brings us to our main point: a full replacement.

Can I just replace the compressor on my AC unit?

Yes, you can replace just the AC compressor on your vehicle, but there are several important considerations: Diagnosis: Ensure that the compressor is the actual issue. Other components, like the condenser, evaporator, or expansion valve, may also be faulty.

Can I change an AC compressor without changing the condenser?

The condenser is the outdoor cabinet of an AC and the parts inside: the compressor, the condenser fan, and the condenser coil. If the compressor fails, you can opt to have only the condenser replaced, leaving the indoor components in place. This costs less than a full AC replacement, but we rarely recommend it.

Is it worth replacing home AC compressor?

Replacing the broken AC compressor on an older unit may just be a temporary fix. You will have to buy a new system when the old AC system eventually breaks down. For older ACs, a complete system replacement is more cost-effective in the long run than replacing the compressor.

How much does it cost to replace a compressor in a home AC unit?

Cost Of Replacement Of Home AC Compressor

Generally, the cost of a home AC compressor is around $1,200. The cost to replace it ranges between $800 and $2,800. The labor and material make up around 50 percent of the final bill. The cost of its parts ranges from $450 to $1,500.

Your AC Compressor Might Be Going Bad, 2 Quick Ways To Find Out!

Is it cheaper to replace compressor or whole unit?

The technician should be able to tell you if the compressor is (or is not) still under warranty. If you have to pay for labor and the compressor, chances are you're going to need to replace the entire outside unit because it would cost slightly more than replacing the compressor.

What is the life expectancy of an AC compressor?

Your air conditioner compressor should last the whole lifespan of your air conditioner, about twelve years or more if you choose a ClimateCare air conditioner. However, it might not last that long if your air conditioner is too small for the space it's cooling, or if you don't keep your air conditioner well-maintained.

Can you buy just the AC compressor?

While you could opt for replacing just the compressor in this case, bear in mind that the cost of a new compressor, as well as the cost for labor and materials, may be close in range to the cost of installing a new AC unit.

How do I know if my compressor is bad on my home AC unit?

Below, we'll detail the warning signs of a bad AC compressor and the steps you should take to address this common issue.
  1. Clicking or Chattering. ...
  2. Rumbling and Rattling. ...
  3. Restricted Airflow. ...
  4. Warm Air Flowing. ...
  5. Refrigerant Leak. ...
  6. Tripping Circuit Breaker. ...
  7. Unit Vibrates When Starting. ...
  8. Air Conditioner Won't Turn On.

How long does it take for a shop to replace an AC compressor?

It entails removing and disposing of any remaining refrigerant, disconnecting and removing the old compressor, installing the new one with proper fittings, and recharging with refrigerant. Add it all up and it typically takes four to six hours.

Can you replace an AC compressor without an evacuating system?

Before you replace the AC compressor, it is important to have a professional evacuate the AC system. This step safely removes refrigerant and adheres to environmental laws, ensuring a safe and compliant process. Proper evacuation ensures no illegal release of refrigerants into the atmosphere.

What burns out an AC compressor?

The following are common causes of compressor burnouts: Poor maintenance of the HVAC system, leading to damaging buildup on the compressor. Power surges causing electrical failures to burn out the compressor. Excess moisture causing chemical reactions to form acid byproducts, eating away the compressor.

Do you have to remove freon to replace AC compressor?

Remove refrigerant – An air conditioning system is under high pressure at all times so it is important to remove relieve the pressure by removing all of the refrigerants.

Why is it so expensive to replace AC compressor?

Why is it so expensive to replace an AC compressor? An AC compressor is expensive to replace because it takes at least four hours to complete, and replacement parts are among the most expensive parts of the air conditioner.

Can I run my AC with a bad compressor?

If the compressor is not working, the fan will not be able to do its job properly and cool air will not be circulated. In some cases, the AC fan may still run even if the compressor is bad, but it will not be as effective in cooling your home.

Can you put new freon in an old AC unit?

If you put the newer freon in right away, your unit will rupture due to the force. However, you can convert your AC unit to handle R410A. You'll need to replace the compressor, condenser, evaporator, and likely the refrigerant tubing. If you replace all of this, your old unit will work fine with the new freon.

How much does it cost to replace a home AC compressor?

Key Takeaways. The cost of replacing an AC compressor can range from $800 to $2,800, influenced by factors like compressor type, size and efficiency of the AC unit, and refrigerant type—with higher SEER ratings and variable-speed compressors being more expensive but also more efficient.

Is it hard to replace a home AC compressor?

Changing a compressor can be a lot of fun, it will call upon all your mechanical skills from brazing and piping to electrical and wiring. There's a couple thing's, which will make this compressor change out go smooth and turn on when you're done.

What does a dying compressor sound like?

Your air conditioner compressor is making unusual noises: If your compressor is making a loud rattling, grinding, or clicking noise, this could be an indication that a piece has broken inside it. If it is more of a grinding noise, the compressor bearings might need to be replaced.

Is it better to replace an AC compressor or a whole unit?

Which brings us to our main point: a full replacement. You'll have to consider your budget and other factors, but in the long run, replacing the entire system at once, rather than a single indoor or outdoor unit, is the best choice.

Can I replace my AC compressor myself?

If you have a comprehensive understanding of HVAC systems and complex technical knowledge, you can replace the compressor yourself. However, if you're like most people and suspect your compressor is on its last leg, call the professionals.

How long does a home AC compressor last?

Most compressors have the same or similar life expectancies as traditional AC units. They typically break down after 15 years but can last longer with proper maintenance. Many people believe replacing their air conditioner's compressor is more cost-effective once it gives out.

Should I replace my 20 year old air conditioner?

On average, you can only expect about 15 years of reliable service from a central AC system. And that's only if you maintain your system well. So, if your home has an AC that's 20 years old or older, it's likely living on borrowed time. Here are all the reasons to replace your home's 20-year-old air conditioner.

How long do aftermarket AC compressors last?

Generally, an AC compressor should last between 10 to 15 years.

Can a compressor last 20 years?

Generally speaking, the average air compressor can last anywhere from five to twenty years with proper maintenance. Factors such as compressed air temperature, humidity, and usage affect how long an industrial air compressor lasts.

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