How Much Is A Capacitor For A  Furnace? Need To Know

What Are Capacitors?

As a homeowner, have you ever thought about how much it’d cost to replace a damaged capacitor in your furnace? Not so straightforward; it depends on various factors

Capacitors are essential for HVAC systems; they store and release energy required for the unit’s functionality. 

How Much Is A Capacitor For A  Furnace? Need To Know

Prices vary depending on:

  •  Type.
  • Lifespan.
  •  MFD.
  • Location.
  • Labor costs. 

Let’s explore these factors in this article.

The average cost of replacing a blower capacitor is $100 to $300, while heat pump capacitors range from $150 to $400. But if additional repairs are needed because of leaks or burning smells when turning on your AC unit or furnace, the cost may be higher. Location and availability may also affect the final price.

It’s important to remember that repairing or replacing a faulty capacitor yourself can lead to injury or death; these parts store electricity even after disconnection. So, it’s best to seek professional help from an HVAC contractor.

Demand for HVAC components including capacitors has been high, leading to supply shortages in some areas, thus higher prices. 

Knowing how to identify signs such as clicking noises, bad smells, or smoke can help identify issues affecting these units; potentially saving money in the long run.

Summer months see more AC use; leading to wear-and-tear on capacitors and electric motors, resulting in unexpected replacements. Knowing placement types, UF MFDs, pricing options, and life span estimates increases longevity, reducing the need for regular repairs!

Capacitors are the unsung heroes of your AC unit; boring, maybe, but true!

Understanding Capacitors In A Furnace.

Capacitors are important in HVAC systems like air conditioners and furnaces. The price of replacing a capacitor varies, based on things like where you live, the system type, and the type of capacitor. Plus, labor costs too! 

Homeowners should watch for signs of a failing capacitor, or else they may be in for high energy bills or worst, a fire due to smoke or burning smells. When you buy a new AC capacitor, make sure it’s the right size and MFD rating.

Tip: Maintaining your HVAC parts saves you lots of money.

Replacing an AC capacitor is like changing a lightbulb, but instead of watts, you’re burning cash.

AC Capacitor Replacement In A Furnace.

Replacing an AC capacitor is a must for homeowners to keep their HVAC system running smoothly. AC capacitors store energy and help run the motor parts, like the blower, fan, and compressor. The cost of AC capacitor replacement can range from $150-$400, depending on the type, size, location, and labor costs.

Here’s a 4-Step Guide:

  1. Spot the faulty capacitor by looking out for signs such as warm air, clicking noises, or a burning smell.
  2. Shut off the power and use special tools to discharge the capacitor’s stored charge.
  3. Unscrew the defective capacitor from its placement in the HVAC system.
  4. Install the new capacitor and cover it with a protective cover.

Keep in mind, AC capacitors typically last 10 years before wear and tear make them faulty. And, a malfunctioning capacitor can damage other components in the HVAC system, making repairs more expensive. 

It’s like trying to win a game of whack-a-mole; just when you think you’ve got AC capacitor costs under control, something else pops up to take a chunk out of your wallet.

AC Capacitor Costs For A Furnace. 

AC capacitors are essential components for AC units and furnaces. They store electric charge to keep the system running smoothly. 

Here’s the scoop on AC capacitor costs:

  • Where you live, the type of HVAC system, part size, and MFD rating can all affect AC capacitor replacement costs.
  • On average, it costs $150-$400, including labor.
  • If your AC is leaking Freon, smelling strange, or making clicking noises, it’s time for a new capacitor.
  • Replacing an old or burned-out one can save you energy bills and prevent injury or further repairs.

Remember, in tough conditions and high usage, capacitors can wear out quicker. Top-of-the-line models may be pricier due to extra features or warranties. For help, contact an experienced HVAC professional who can advise you on what you need.

Pro Tip: Regular maintenance helps maximize capacitor lifespan. Inspect them (with power off), clean any dust off, and replace them if you see bulging smoke or damaged covers. 

Bottom line: Getting a new capacitor can be expensive.

Frequently Asked Questions. 

Q: How much does a capacitor for a furnace typically cost?

A: The cost of a capacitor for a furnace can vary depending on several factors such as the type, brand, and capacity. On average, you can expect to pay anywhere from $50 to $150 for a furnace capacitor.

Q: Are there any additional expenses associated with purchasing a furnace capacitor?

A: In addition to the cost of the capacitor itself, you may also need to consider the cost of professional installation if you are not comfortable or experienced in handling electrical components. Hiring a technician for installation can range from $100 to $300, depending on your location and the complexity of the job.

Q: Can I purchase a furnace capacitor directly from the manufacturer?

A: Yes, many furnace manufacturers offer replacement parts, including capacitors, through their authorized dealers or service centers. You can contact the manufacturer or visit their website to find out where to purchase genuine parts for your specific furnace model.

Q: Where else can I buy a furnace capacitor besides the manufacturer?

A: Apart from the manufacturer, you can also find furnace capacitors at local HVAC (heating, ventilation, and air conditioning) supply stores, electrical supply stores, or online retailers. Websites like Amazon, eBay, or specialized HVAC parts websites often offer a wide range of capacitors to choose from.

Q: Is it possible to replace a furnace capacitor myself, or do I need professional help?

A: If you have experience and knowledge in working with electrical components and feel confident in your abilities, you can replace a furnace capacitor yourself. However, it’s important to note that capacitors store electrical energy and can be dangerous if mishandled. If you’re unsure or uncomfortable, it’s best to seek the assistance of a qualified HVAC technician to ensure safe and proper installation.

Q: Are there any warranties or guarantees available for furnace capacitors?

A: Yes, warranties or guarantees for furnace capacitors can vary depending on the manufacturer or supplier. It’s advisable to check the warranty information provided by the manufacturer before making a purchase. Some manufacturers offer limited warranties that cover defects or failures within a specified time frame, typically ranging from one to five years.


When it comes to the cost of a capacitor for a furnace or AC, there are numerous aspects to take into account. The kind of capacitor, geographic area, and labor costs all affect the total cost of replacement. Plus, burning odors or clicking noises may be signs of needing an AC capacitor replacement. It is important to recall that not changing a faulty capacitor may lead to extra repairs and even severe injury. As such, homeowners should always get the assistance of a professional HVAC technician when they have capacitor issues. One noteworthy point is that newer models may have higher capacitor costs due to high need and advanced technology. But, spending money on a new AC capacitor can end up saving you money on energy bills in the long run.

For example, I had a friend living in Los Angeles with an older HVAC system that was having difficulty keeping up during summertime. After an experienced HVAC contractor did some examining, her air conditioner capacitors were found to be worn out and tearing. The technician advised changing them with higher MFD capacitors and within hours, her system was operating efficiently again. Although there was an initial expense, she eventually saved money on her electricity bill due to increased efficiency.

All in all, whether for your furnace or AC unit, understanding the elements that influence AC capacitor costs can help you make informed decisions regarding maintenance and upgrades for your HVAC system.