Why did my AC stop cooling but the fan won't start?

A failed run capacitor or contactor is the single most common cause — both are low-cost parts, and a measured diagnosis confirms which one before anything is replaced. Watch out for a shop that jumps straight to 'your compressor is dead' without testing the cheap electrical parts first.

How much should a capacitor or contactor replacement cost?

The parts are inexpensive; the service call and labor make up most of the bill. An honest shop diagnoses the specific failed component and prices it directly, rather than bundling it into a vague 'electrical repair' or using it as a lead-in to sell a new system.

What electrical signs indicate a capacitor or motor problem during an urgent AC failure?

Frequent short cycling, humming at startup, or a unit that tries and fails to start point to capacitor or motor issues. These electrical faults can escalate quickly in Columbia's humidity. Technicians perform voltage checks and run-capacitor tests. Confirm that the company carries replacement capacitors and locks out high-voltage repairs behind licensed electricians if code requires one.

What should I document at the scene of an emergency repair for warranty and insurance purposes?

Take photos of damaged components, note error codes on thermostats or control panels, and keep the technician's written diagnosis and invoice. Columbia homeowners should retain any repair permits or business-license references the provider supplies. These documents simplify warranty claims and any insurance interactions after a major failure.

How do I get a quote from these AC repair companies?

Submit one request on this page and we send it to the vetted AC repair pros in Columbia, SC listed here. They send quotes back — no obligation.

Best AC Capacitor, Contactor & Motor Repair in Columbia, SC

Last updated June 27, 2026

What to look for in AC Capacitor & Electrical Repair in Columbia

A blown capacitor or contactor is the most common reason an AC stops cooling — and the cheapest fix when diagnosed honestly. The pros worth paying for test the electrical components before reaching for a compressor or system quote. We weight measured diagnosis over shops that use a cheap part failure as a lead-in to sell a replacement.

Electrical-repair specialization. Provider lists capacitor, contactor, and fan/blower-motor repair as distinct services — the high-frequency, lower-cost failures — with diagnostic detail.
Honest-diagnosis evidence. Reviews or source describe testing the failed component before replacing it, and pricing the specific part rather than bundling into a vague 'electrical repair'.
Google rating. A strong rating floor reflects whether customers felt the cheap fix was offered honestly instead of upsold.

Verify before you book

Whether the specific electrical component was tested before replacement — ask what reading confirmed the failure.
That the cheap fix wasn't used as a lead-in to a system-replacement pitch — get the diagnosis in writing.
License status with your state board — verify TDLR (TX), ROC (AZ), DBPR (FL), or your local equivalent before paying.

See full ranking methodology for AC Capacitor & Electrical Repair →

AC Capacitor & Electrical Repair in Columbia: what fails first

Capacitors, contactors, and fan/blower motors are the high-frequency, lower-cost failures — a measured diagnosis tells them apart from a dead compressor before you spend on the wrong part. Here is what each of the 1 pro below publishes: Verify your state's HVAC contractor license through the state licensing board before paying a deposit.

How we rank Capacitor & Electrical Repair providers → · Top picks meet at least one of: a category award, ≥2 verified signals, or Vouched Score ≥ 70.

Top picks

Kaminer Heating and Cooling★ Best for Capacitor & Electrical Repair
Consistently strong customer feedback (4.8★ from 1,035+ Google reviews; 2.9★ from 10+ Yelp reviews).
Google 4.8★ (1,035+)Yelp 2.9★ (10+)

Typical Capacitor & Electrical Repair costs in Columbia, SC (2026)

Last updated June 20, 2026

Estimated ranges for Columbia, SC. Actual cost varies with home size, equipment, and scope — always request a written quote for your job.

Service	Typical range
Capacitor replacement (installed)	$65–$325
Contactor replacement (installed)	$80–$285
Condenser fan motor replacement (installed)	$125–$575
Blower motor replacement (installed — PSC to ECM)	$410–$1,900

Why Columbia's Humid Summers Make "AC Repair" Different

Columbia's hot, humid summers increase runtime and corrosion risk for home units, so choosing the best AC repair companies in Columbia, South Carolina matters. High indoor humidity also raises mold and airflow problems that local technicians see every season. Residents should prioritize licensed technicians, quick response for emergency service, and clear warranties when comparing Columbia providers.

Which "AC Repair" question do Columbia homeowners ask most about emergency calls?

Why did my AC stop cooling but the fan won't start?: A failed run capacitor or contactor is the single most common cause — both are low-cost parts, and a measured diagnosis confirms which one before anything is replaced. Watch out for a shop that jumps straight to 'your compressor is dead' without testing the cheap electrical parts first.
How much should a capacitor or contactor replacement cost?: The parts are inexpensive; the service call and labor make up most of the bill. An honest shop diagnoses the specific failed component and prices it directly, rather than bundling it into a vague 'electrical repair' or using it as a lead-in to sell a new system.
What electrical signs indicate a capacitor or motor problem during an urgent AC failure?: Frequent short cycling, humming at startup, or a unit that tries and fails to start point to capacitor or motor issues. These electrical faults can escalate quickly in Columbia's humidity. Technicians perform voltage checks and run-capacitor tests. Confirm that the company carries replacement capacitors and locks out high-voltage repairs behind licensed electricians if code requires one.
What should I document at the scene of an emergency repair for warranty and insurance purposes?: Take photos of damaged components, note error codes on thermostats or control panels, and keep the technician's written diagnosis and invoice. Columbia homeowners should retain any repair permits or business-license references the provider supplies. These documents simplify warranty claims and any insurance interactions after a major failure.
How do I get a quote from these AC repair companies?: Submit one request on this page and we send it to the vetted AC repair pros in Columbia, SC listed here. They send quotes back — no obligation.