Right Away Heating and Air Right Away Heating and Air Carries Capacitors on
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AC Capacitor Replacement Near You When Your Outdoor Unit Hums, Won't Start or the Fan Won't Spin
Right Away Heating and Air Carries Capacitors on Every Van
Updated November 2026
Right Away Heating and Air handles AC capacitor replacement near you on the first visit in most cases. A capacitor gives the compressor and fan motor the jolt they need to start. When it weakens, the outdoor unit hums, the fan sits still and the house warms up.
Need AC capacitor replacement in Ladson, SC? Our team works out of the William Aiken Avenue office and covers the towns around it.
AC capacitor replacement typically runs $100-$400+, depending on the capacitor size and whether a hard start kit is needed. We stock common capacitors on every van, and you get $50 off any repair. Call 843-996-8904.
- American Standard Customer Care Dealer
- SC License CLM.119013
- 20+ Years Lowcountry HVAC
- Capacitors Stocked on Every Van
- $50 Off Any Repair
Editor view: the real Duda form sits in its own block and moves here on Preview and the live site.
$50 off any repair is applied to your ticket automatically.
Ladson, SC 29456
Signs Your AC Capacitor Is Going Bad
Hum, Click, Nothing
Signs your AC capacitor is going bad include a humming outdoor unit with a still fan, an AC that takes several tries to start, a clicking sound, and a capacitor that looks swollen or oily on top.
| Sign | What's Happening |
|---|---|
| Outdoor unit hums, fan won't spin | Capacitor can't start the fan motor |
| AC starts late or struggles to start | Capacitor is weak |
| Clicking from the outdoor unit | Compressor trying and failing to start |
| AC shuts off on its own | Motor overheating from a weak capacitor |
| Swollen or leaking capacitor top | Capacitor has failed |
| Warm air from the vents | Compressor isn't running |
What Should I Do If My AC Is Humming?
If your AC is humming and the fan isn't spinning, turn the system off at the thermostat and call. Running it this way can overheat and damage the compressor.
- Turn cooling OFF at the thermostat.
- Don't poke the fan blades with a stick to start them.
- Don't open the electrical panel; capacitors hold a charge even with power off.
- Call 843-996-8904.
Hum, Click, Nothing Written prices, $50 off any repair and free second opinions.
Why AC Capacitors Fail So Often in the Lowcountry
Heat Wears Them Out
AC capacitors fail so often in the Lowcountry because heat breaks them down. Your outdoor unit sits in the sun for months, starting and stopping thousands of times, and each summer chips away at the capacitor's strength.
- Heat: outdoor units in full sun run hot all summer.
- Run time: long cooling seasons mean thousands of start cycles.
- Power surges: summer storms and lightning stress electrical parts.
- Cheap parts: low-grade capacitors wear out faster.
- Dirty coils: make the motors work harder and draw more current.
How Long Should an AC Capacitor Last?
An AC capacitor usually lasts 5 to 10 years, but Lowcountry heat often pushes them toward the short end. Testing at every spring tune-up catches weak ones early.
| Capacitor Condition | What We Do |
|---|---|
| Within its rated range | Leave it |
| Slightly low | Note it and recheck next visit |
| Well below rating or swollen | Replace it |
Heat Wears Them Out Written prices, $50 off any repair and free second opinions.
How Much Does AC Capacitor Replacement Cost?
$100-$400+ Installed
AC capacitor replacement typically costs $100-$400+ installed. Single capacitors sit at the low end, dual run capacitors in the middle, and hard start kits for older compressors add a little more.
| Capacitor Repair | Typical Lowcountry Price Range |
|---|---|
| Diagnostic service call | $80-$150+ |
| Single run capacitor | $100-$250+ |
| Dual run capacitor | $150-$400+ |
| Hard start kit added | $150-$350+ |
| Contactor replaced at the same time | $150-$350+ |
Prices are typical Lowcountry ranges for planning. Your written estimate is the final word.
Why Do Some Companies Charge So Much for a Capacitor?
Capacitor prices vary because some companies price on flat-rate books with big markups. Right Away Heating and Air prices the part and labor in writing before work.
- The part itself is not expensive.
- Most of the cost is the trip, diagnosis and labor.
- Ask for the price before the tech replaces anything.
$100-$400+ Installed Written prices, $50 off any repair and free second opinions.
How We Replace an AC Capacitor Safely
Test, Discharge, Replace
An AC capacitor replacement from Right Away Heating and Air takes about 30 minutes. We test, safely discharge and replace the capacitor, then check the rest of the electrical system so nothing else is about to fail.
- Kill power at the disconnect and breaker.
- Test the capacitor against the rating on its label.
- Discharge it safely before removal.
- Install a matching capacitor with the right microfarad and voltage rating.
- Check the contactor and wiring for burn marks or pitting.
- Test the start and measure motor amps.
Can I Replace an AC Capacitor Myself?
You shouldn't replace an AC capacitor yourself. Capacitors store a dangerous charge even with the power off, and the wrong part can damage the compressor.
- Capacitors can shock you after the power is off.
- The wrong rating can burn out a motor.
- A failed capacitor can be a symptom of a bigger problem.
Test, Discharge, Replace Written prices, $50 off any repair and free second opinions.
Capacitor or Something Bigger? What a Hum Can Mean
Rule Out the Compressor
A humming AC usually means a bad capacitor, but it can also mean a stuck compressor or a failed fan motor. A proper test tells them apart before you pay for parts.
| Symptom After New Capacitor | Likely Problem |
|---|---|
| Starts and runs normally | Capacitor was the problem |
| Compressor still won't start | Locked or failing compressor |
| Fan still won't spin | Failed condenser fan motor |
| Breaker trips | Shorted compressor or wiring |
Rule Out the Compressor Written prices, $50 off any repair and free second opinions.
Capacitor Replacement Specials and Comfort Club
Save on the Fix
Capacitor replacement from Right Away Heating and Air qualifies for $50 off any repair, and Comfort Club members get 10% off repairs plus capacitor testing at every tune-up.
| Offer | What You Get |
|---|---|
| $50 Off Any HVAC Repair | Applies to capacitor replacement |
| Comfort Club | 10% off repairs, capacitors tested twice a year |
| Free Second Opinion | If a hum turned into a replacement quote |
Restrictions apply.
Where Right Away Heating and Air Provides AC capacitor replacement
Local Techs, Local Office
Every AC capacitor replacement call we take starts at our Ladson office on William Aiken Avenue, and our techs cover 20 towns in Charleston, Berkeley and Dorchester counties from there.
Right Away Heating and Air in Ladson, SC
Right Away Heating and Air in Ladson, SC sits central to the tri-county area, so AC capacitor replacement calls in Summerville, Goose Creek and North Charleston are a short drive.
Towns We Cover for AC capacitor replacement
Summerville, Goose Creek, North Charleston and Hanahan sit closest to our shop. We also cover Moncks Corner, Daniel Island, West Ashley, Mount Pleasant, Awendaw, Hollywood and Ravenel.
Island and coastal calls include James Island, Johns Island, Sullivan's Island, Isle of Palms, Kiawah Island, Seabrook Island, Edisto Island, Meggett and Yonges Island.
Local Techs, Local Office Written prices, $50 off any repair and free second opinions.
Frequently Asked Questions About AC Capacitor Replacement
Quick Answers
How Do I Know If My AC Capacitor Is Bad?
A bad AC capacitor usually makes the outdoor unit hum while the fan sits still. A tech confirms it by testing the microfarad reading.
Can a Bad Capacitor Damage My Compressor?
Yes. Running the AC with a failed capacitor can overheat the compressor. Turn it off and call.
How Long Does Capacitor Replacement Take?
About 30 minutes once the tech is on site.
Is a Capacitor Covered by Warranty?
Sometimes. Capacitors on newer, registered systems may be covered under the parts warranty. Labor is usually separate.
What Is a Hard Start Kit?
A hard start kit gives an older compressor an extra boost at startup. It can help an aging compressor start more easily.
Do You Have Capacitors on the Van?
Yes. Common sizes are stocked on every van.
How Often Should Capacitors Be Tested?
At every tune-up. Comfort Club members get them tested twice a year.
Can You Replace It Tonight?
Often, yes. After-hours service is available.
Reviewed by Blake Miller, Owner, Right Away Heating and Air
Book AC Capacitor Replacement With Right Away Heating and Air
Fixed Same Visit
Right Away Heating and Air will test your capacitor, replace it if it's failed and get your AC running. Call 843-996-8904.
9565 William Aiken Ave, Suite 104, Ladson, SC 29456
