How much does an AC capacitor replacement cost?
How much does an AC capacitor replacement cost?
$250 – $400 average cost (part + labor)
AC capacitor replacement cost
AC capacitor replacement costs $250 to $400 on average for the part and labor, depending on the capacitor type and local labor rates. The labor to diagnose the problem and replace the capacitor makes up most of the repair cost. AC capacitor prices range from $15 to $80 for the part alone.
| National Average Cost | $300 |
| Minimum Cost | $150 |
| Maximum Cost | $500 |
| Average Range | $250 to $400 |
HVAC capacitor replacement cost factors
Several factors affect the cost to replace an air conditioner capacitor:
Capacitor type
AC units have either separate start and run capacitors or one dual run capacitor. The cost to replace the capacitor depends on which type the unit has.
The start capacitor provides a burst of stored energy to supplement the home's electrical supply and start the motor. An air conditioner requires more energy to start up than the home's electrical system can provide on its own.
The run capacitor provides a steady supply of energy to keep the motor running after it starts.
A dual run capacitor combines the start and run capacitors in a single unit.
Labor cost
HVAC repair technicians charge $75 to $150 per hour on average, depending on your location. Expect to pay more for emergency repairs that take place outside of normal business hours. The season may also impact labor rates, as the demand for AC repairs increases in the warm summer months.
Additional AC repairs
If the capacitor failure causes extra wear and tear on other parts, the HVAC system may require additional repairs. AC repairs cost $150 to $650 on average, depending on the problem, which parts need replacing, and whether the unit is still under warranty.
Symptoms of a bad AC capacitor
The following signs may indicate your air conditioner capacitor needs replacing:
AC stutters when turning on
AC fails to start at all
AC shuts off randomly
Warm air blowing
Clicking or humming sounds from the AC unit
If the start capacitor fails, the motor will have difficulty turning on. If the run capacitor fails, the motor may turn on but will exhibit other problems like overheating, vibrating, or humming.
Many of these symptoms may be due to failures in other AC parts. Have a qualified HVAC technician inspect the AC unit to diagnose the problem.
Air conditioner capacitor FAQs
What does an AC capacitor do?
An air conditioner capacitor collects, stores, and releases energy to start the HVAC system's motors and keep them running smoothly.
How long do AC capacitors last?
An AC capacitor lasts 8 to 15 years on average, depending on the usage. Capacitors may require replacement more often in areas that experience frequent power surges or extreme temperatures.
How long does it take to replace an HVAC capacitor?
Replacing an HVAC capacitor takes about 1 hour but may take longer if the technician doesn't already have the correct part in the truck.
Will an AC run with a bad capacitor?
While an AC may continue to run with a bad capacitor, this can seriously damage the compressor, fan motor, and other parts that are far more costly to replace. Running an AC with a bad capacitor can also cause complete system failure.
Where is the capacitor located on an ac unit?
The capacitor is located inside the outdoor condenser unit. In some AC units, you'll find the capacitor near the compressor or fan motor, while in others it's attached to the motor.
Getting quotes from AC repair companies
Before hiring an AC repair company near you to replace the capacitor, be sure to:
Confirm whether the AC manufacturer's warranty will cover the capacitor cost.
Read AC repair company reviews on HomeGuide and Google.
Get at least three estimates to compare.
Look for a NATE-certified technician with experience repairing air conditioners.
Select licensed and insured companies that have been in business for 5+ years.
Get a detailed estimate, contract, and warranty in writing before the work begins.
Never pay in full before the project starts.
Questions to ask HVAC repair technicians
Ask AC repair pros these questions to ensure you hire a reputable, experienced technician:
How long have you been repairing air conditioners?
Are you NATE certified or ACCA accredited?
Do you charge a diagnostic or service call fee? If yes, do you apply that fee to the repair cost?
Is the capacitor covered under warranty?
Does the estimate include the replacement part and labor?
What other costs should I expect?
How long will the repairs take?
Are you licensed, insured, and bonded?
What does your warranty policy include?
What is your payment schedule?
Using our proprietary cost database, in-depth research, and collaboration with industry experts, we deliver accurate, up-to-date pricing and insights you can trust, every time.