How Much Does It Cost to Repair or Replace an Air Conditioner Capacitor?

As temperatures rise in summer, air conditioning units kick in to keep you fresh and cool indoors. But sadly, not all AC units are fit for the task when needed. A common reason for a malfunctioning air conditioner is a failing capacitor.

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If this rings a bell, read on and discover all you need to know about AC capacitor repair and replacement, including how to spot the warning signs and how much the job is likely to cost you.

What Are the Signs That Indicate the Capacitor in an Air Conditioner Is Going Bad?

Wear and tear in any machine is unavoidable, but fortunately, air conditioner capacitors usually signal when something’s wrong. Watch for these common red flags:

• If the AC is blowing weak or uneven air, it could be a sign the capacitor isn't providing enough power to the fan motor.

• A humming or buzzing sound from your outdoor AC unit can sometimes indicate a capacitor problem.

• If your AC's breaker trips frequently, it could be due to a power surge caused by a failing capacitor.

• A malfunctioning capacitor can force your AC unit to work harder, increasing energy consumption and your electricity bills.

Can You Replace an Air Conditioner Capacitor Yourself, or Should You Hire a Professional?

If you’re comfortable doing DIY, replacing an AC capacitor should be within your capabilities. However, if you have any doubts whatsoever, defer to the experience of a qualified HVAC technician. An inadequate repair or replacement may damage your AC unit and could risk your health. Capacitors hold an electrical charge, and improper handling can result in serious injury. Consider these factors before tackling this project yourself:

• If you're not confident working with electrical components, it's best to leave it to a professional.

• You'll need to know the specific type of capacitor your unit requires to ensure you purchase the right replacement.

• Ensure you turn off the power to your AC unit at the breaker box before making repairs.

How Much Does It Cost to Repair or Replace an Air Conditioner Capacitor?

The cost of repairing or replacing an AC capacitor can vary depending on several factors, such as the brand you use and local labor costs. According to HomeGuide, you should expect to pay between $10 and $50 (CAD 14 and CAD 69) for a standard AC capacitor and another $90 to $200 (CAD 124 to CAD 274) for labor. For a high-end AC capacitor, expect to pay between $300 and $400 (CAD 411 and CAD 548) for parts and labor.

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Types of Capacitors Used in Air Conditioning Systems

There are two main types of capacitors used in air conditioners: run capacitors and dual-run capacitors.

Run Capacitor

This starts the compressor, which is the workhorse of your AC unit. Standard run capacitors typically cost between $5 and $50 (CAD 7 and CAD 69), while high-end alternatives are between $60 and $110 (CAD 83 and CAD 151).

Dual-Run Capacitor

This type combines the functions of a run capacitor and a fan capacitor, which supplies power to the fan motor. The standard version ranges from $10 to $50 (CAD 14 to CAD 69), while a top-of-the-line model is between $60 and $110 (CAD 83 and CAD 151).

What Factors Influence the Cost of Repairing or Replacing an Air Conditioner Capacitor?

Key factors that can affect the overall cost of repairing or replacing your AC capacitor include:

• Capacitor type: Dual-run capacitors are more expensive than run capacitors.

• Unit type: Large AC units may require bigger and more expensive capacitors.

• Voltage ratings: Capacitors with higher voltage ratings tend to cost more.

• Location: HVAC companies in densely populated areas might charge more for labor than those in rural areas.

• Repair service: Different HVAC companies may have varying labor rates, so it’s wise to get quotes from several companies before making a decision.

All CAD conversions are based on the exchange rate on the date of publication.