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How Much Does An AC Capacitor Cost?

150 — 350
average cost to replace
250 — 550
average cost with labor
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Key Takeaways

Key PointDetail
Cost Range$100 to $250 on average
Influencing FactorsType of capacitor, labor costs, brand
Price VariationBased on single or dual-run capacitors
DIY vs ProfessionalProfessional installation recommended due to electrical hazards
AC Capacitor
AC Capacitor – How Much Does An AC Capacitor Cost?

AC Capacitor Cost Overview

In this guide, we explore the costs associated with replacing an AC capacitor, a crucial component in air conditioning units that helps start and stabilize the motor by storing energy. We will discuss various capacitor types, costs, and professional tips for handling replacements.

HVAC Capacitor Cost

Type of CapacitorCost Range
Standard$100 – $250
High-end Brands$300 – $400

AC Capacitor Replacement Cost

Cost AspectValue
National Average Cost$175
Minimum Cost$80
Maximum Cost$400

AC Capacitor Cost by Type

Capacitor TypeStandard CostHigh-end Cost
Start Capacitor$8 – $60$70 – $140
Run Capacitor$5 – $50$60 – $110
Dual Run Capacitor$10 – $50$60 – $110

Specific Capacitor Replacement Costs

AC Unit TypeCapacitor TypeCost
Central ACSingle Run$120 – $150
Any ACDual Run$140 – $175
Any ACStart Capacitor$150 – $200
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Other Related Costs

Furnace Capacitor$100 – $250
Blower Capacitor$90 – $200
Heat Pump Capacitor$120 – $300

Factors Influencing Capacitor Costs

FactorCost Impact
Part Cost$10 – $50
Labor$90 – $200

Labor Costs

Service TypeCost Range
HVAC Professional$90 – $200

Capacitor Cost for Different AC Units

AC Unit TypeCost
Split AC$100 – $250
Window AC$80 – $180


  • What does an air conditioner capacitor do? Helps start and run the motor by storing energy.
  • How long do AC capacitors last? Typically 10 to 20 years, depending on usage and maintenance.
  • How to tell if an AC capacitor is bad? Signs include a humming noise, a swollen top, or failure to start the motor.
  • What capacitor do I need for my AC? Depends on the model and specifications of your AC unit.
Residential HVAC Unit
Residential HVAC Unit – How Much Does An AC Capacitor Cost?

Hiring an HVAC Repair Service

When it comes to replacing an AC capacitor, hiring a qualified HVAC technician is advisable due to the electrical complexities involved. Here are some tips on choosing the right professional:

Verify CredentialsEnsures quality and reliability
Ask for EstimatesHelps compare prices and services
Check ReviewsProvides real customer feedback

This guide provides detailed information to help you understand the costs associated with AC capacitor replacement and ensures you make informed decisions when handling HVAC maintenance and repairs.

Labor Cost to Replace an HVAC Capacitor

The labor cost to replace an HVAC capacitor typically ranges from $90 to $200. This variation depends on geographical location, the complexity of the job, and the technician’s expertise. It’s generally a quick job, taking between 1 to 2 hours. Given the electrical risks associated with handling capacitors, it’s advisable to hire a certified professional to ensure safe and correct installation.

Split AC Capacitor Cost

AC Unit TypeCapacitor TypeCost Range
Split ACSingle Run$90 – $120
Split ACDual Run$100 – $130
Split ACStart Capacitor$80 – $110

Replacing a capacitor in a split AC system varies based on the capacitor type. Dual run capacitors, which handle both the compressor and the fan, tend to be slightly more expensive than single run capacitors.

Residential HVAC
HVAC Room – How Much Does An AC Capacitor Cost?

Window AC Unit Capacitor Cost

AC Unit TypeCapacitor TypeCost Range
Window ACSingle Run$70 – $100
Window ACDual Run$80 – $120

Window AC units usually require smaller capacitors, which are less expensive than those used in larger split systems. These costs are for the part only, excluding labor.

AC Capacitor FAQs

What Does an Air Conditioner Capacitor Do?

An air conditioner capacitor stores the electrical energy necessary to start and run the AC unit’s motors. Essentially, it helps jumpstart the motor and stabilize voltage to keep it running smoothly.

How Long Do AC Capacitors Last?

Typically, AC capacitors last between 10 to 15 years, depending on the usage and environmental conditions. Regular maintenance can help extend their lifespan.

How to Tell if an AC Capacitor is Bad?

Signs of a failing capacitor include:

  • AC unit humming but not starting
  • AC unit takes longer than normal to start
  • AC unit shuts off on its own
  • Capacitor appears swollen or leaky

What Capacitor Do I Need for My AC?

The type of capacitor needed for an AC unit depends on the specific motor it operates. This information is typically found on the old capacitor or in the AC unit’s service manual. It’s crucial to match the voltage and capacitance specifications.

How Many Capacitors are in an AC Unit or Heat Pump?

Most AC units and heat pumps have at least one capacitor, but they can have two: a start capacitor and a run capacitor. Dual run capacitors are common in modern systems.

How Long Does It Take to Replace an HVAC Capacitor?

Replacing an HVAC capacitor typically takes about 30 to 60 minutes. The process involves discharging the old capacitor, removing it, connecting the new capacitor, and ensuring the system is functioning properly.

How Much Does it Cost to Replace an AC Capacitor Yourself?

If you opt to replace an AC capacitor yourself, the costs can be significantly lower. You would only pay for the part, which ranges from $5 to $50 depending on the type. However, due to the risks involved with handling electrical components, this is generally not recommended unless you have appropriate technical skills.

Hiring an HVAC Repair Service for Capacitor Replacement

When hiring a professional for capacitor replacement, ensure they are certified and experienced. This not only guarantees safety but also the efficiency of your AC unit.

Questions to Ask

  • Are you licensed and insured?
  • Can you provide references?
  • How long will the repair take?
  • What is covered under your service warranty?
  • Do you offer a flat rate or hourly charge for repairs?

Asking these questions will help you find a reliable technician and avoid unexpected costs or issues during the capacitor replacement.

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