Free diagnostic, written price before any work — text Clint at (210) 600-5091
Marion, Texas

Marion, TX · 78124

AC Repair in Marion, TX — AC Not Cooling? Same-Day Fix.

Air conditioner not blowing cold air in Marion? We're the AC repair company near you — same-day service, written price before any work, and an honest fix. within 60 minutes response. Emergency AC repair available after hours.

4.9★ Google Same-day Family-owned since 2010 Master HVAC, Texas
Clint Carnes, owner of Carnes and Sons Air Conditioning

Talk to Clint Carnes

Owner · Master HVAC, TX

4.9 · Family-owned since 2010

Shoe covers on, drop cloths down, job site spotless when we leave. Repair-first — we fix what's broken instead of upselling a new system.

Answers in minutes · Same-day service

Repair First. Replace Only If Necessary.

A lot of companies show up hoping to sell you a system. We show up to fix your air conditioner.

We diagnose before we quote

FREE service call. We find out what's actually wrong before anybody talks about money.

If it can be fixed, we fix it

When a repair at a fair price is the smart call, that's what we recommend — and that's what we do.

Replacement only when it's necessary

We'll only bring up a new system when the repair truly doesn't make sense — and you decide, not us.

Carrier Factory Authorized DealerGoodman Air Conditioning & HeatingBBB Accredited BusinessGoogle 5-Star ReviewsFacebook 5-Star Reviews
Family-OwnedSince 2010 · TACLB29435E

Cool air back on today in Marion

Marion sits between Schertz and Seguin and a lot of homes here are on propane, which means we see odd dual-fuel heat pump setups that the big chains won't touch. We will — and we carry the controls for them.

You'll get a real arrival window, a written price before any wrench turns, and a fix that holds up — most Marion repairs are done on the first visit. No call center routing you in circles, no commission salesperson upselling a new system you don't need. Just a straight answer, a fair price, and your house comfortable again before bedtime.

Why isn't my AC cooling? Common Marion AC problems

If your AC is running but not cooling, blowing warm air, or won't turn on at all, you're not alone — these six failures account for most summer air conditioner repair calls in the 78124 area. We can usually finish the fix on the first visit.

AC blowing warm air

Usually a failed capacitor, low refrigerant, or a contactor that won't pull in. Diagnosed in under 20 minutes, fixed the same visit on most calls.

Outdoor unit not running

Capacitor (most common), contactor, or a tripped breaker. We carry universal capacitors and contactors on every truck — no second trip.

Frozen coil / water leaking

Dirty coil, low charge, or a clogged drain line. We thaw it, fix the root cause, and clear the line. Don't ignore it — frozen coils kill compressors.

Breaker tripping when AC starts

Shorted compressor, failing capacitor, or weak contactor. We test under load with clamp meters before swapping parts.

Thermostat blank or won't change temp

Dead batteries, blown 24V fuse on the air handler, or a tripped float switch. Often a 15-minute, low-cost fix.

Short-cycling (off after 1–2 min)

Overheating compressor, dirty condenser coil, or wrong refrigerant charge. We pull pressures plus superheat/subcool to find the actual cause.

Recent repairs we've done in Marion

Pulled directly from our Housecall Pro service records and updated daily. Customer details removed for privacy.

Jun 2026
Repair · Marion 78124
Capacitor replacement — cooling restored same visit
Jun 2026
Repair · Marion 78124
Contactor replacement and amp-draw check
Jun 2026
Repair · Marion 78124
Refrigerant leak repair and recharge
May 2026
Repair · Marion 78124
Condensate drain line cleared with nitrogen
May 2026
Repair · Marion 78124
Condenser fan motor replacement
May 2026
Repair · Marion 78124
Control board replacement
May 2026
Repair · Marion 78124
Evaporator coil replacement under warranty
May 2026
Repair · Marion 78124
Blower motor replacement

Each entry is a real repair completed by our team in the Marion area.

What every truck rolling to Marion carries

Universal capacitors (5–80 MFD) and 1/3–1 HP fan motors

First-visit fix on the #1 and #2 most common failures.

R-410A and R-22 (legacy units), recovery machine, nitrogen

Refrigerant leaks diagnosed and recharged in the same trip.

Common contactors, transformers, defrost boards, control boards

Most board failures handled without a parts run.

Manometers, clamp meters, refrigerant scales, electronic leak detectors

We diagnose before we replace. Every part swap is justified on paper.

What you get when we show up

Comfortable house, clean job, fair price — every visit in Marion.

A real arrival window

We text when we're on the way in Marion so you're not stuck waiting all afternoon. Most repair calls handled the same day.

Repair first, replace only when it's right

A $90 capacitor stays a $90 capacitor. We don't pitch a new system unless the math actually saves you money — and we'll show you the math.

Written price before any work

You see the number on paper, sign off, then we turn a wrench. No surprise add-ons and no price change at the door.

Shoe covers on. Job site spotless.

Drop cloths under the unit, debris hauled out, condensate cleaned up. We leave your house cleaner than we found it.

Techs you're comfortable having in your home

Background checked, in uniform, fresh-smelling, polite to your kids and your dog. No smoking, no vaping, no drinking on your property — ever.

Backed by a licensed master, not a call center

Texas master HVAC license on every job. If something needs to be made right, the owner picks up the phone — not a third-party dispatcher.

Live from our dispatch board

Recent jobs across Marion

Pulled straight from our Housecall Pro records and refreshed daily. Customer details removed — just the work, dates, and equipment so you can see how often we're in your neighborhood.

Recent repairs

Capacitors, motors, refrigerant, drain lines

  • Jun 11
    Capacitor replacement — cooling restored same visit· Marion 78124
  • Jun 8
    Contactor replacement and amp-draw check· Marion 78124
  • Jun 4
    Refrigerant leak repair and recharge· Marion 78124
  • May 31
    Condensate drain line cleared with nitrogen· Marion 78124
  • May 27
    Condenser fan motor replacement· Marion 78124
  • May 22
    Control board replacement· Marion 78124
  • May 12
    Evaporator coil replacement under warranty· Marion 78124

Recent installs

Full system replacements, all major brands

  • Jun 9
    Goodman 3-ton — 3-ton Goodman AC system installed· Marion 78124
  • Jun 2
    Carrier 2.5-ton — 2.5-ton Carrier heat pump system installed· Marion 78124
  • May 25
    Armstrong 4-ton — 4-ton Armstrong AC system installed· Marion 78124
  • May 19
    Armstrong 5-ton — 5-ton Armstrong heat pump system installed· Marion 78124
  • May 17
    Goodman 3-ton — 3-ton Goodman AC system installed· Marion 78124
  • May 14
    Carrier 3.5-ton — 3.5-ton Carrier AC system installed· Marion 78124
  • May 6
    Goodman 3-ton — 3-ton Goodman AC system installed· Marion 78124

Each entry is a real job completed by our team in the Marion area.

What Your Neighbors Are Saying

Marion neighborhoods we serve

Marion ISD areaSanta ClaraFM 78 corridorKruegerZuehl Crossing

Marion AC repair — questions we get

How fast can you get to my AC in Marion?

Same-day across Marion — typically within 60 minutes from the time you call. We route by area, so once you book you'll usually get a tighter ETA within an hour. Mornings book first; on a hot afternoon emergency, call us directly (don't text) for the fastest answer.

What does AC repair cost in Marion?

The diagnostic service call is free. The majority of Marion repairs land between $185 and $895 — capacitors and contactors on the low end, fan motors and full refrigerant recharges higher up. Compressor replacements run $1,800–$3,400. You always get the written price before any work starts, and there's no surcharge for Marion vs. inner San Antonio.

Which neighborhoods in Marion do you cover?

All of them. We regularly run jobs across Marion ISD area, Santa Clara, FM 78 corridor, Krueger, and the rest of 78124. If you're inside the 78124 ZIP, you're in our zone.

Do you fix AC units on weekends in Marion?

Yes. Saturdays and Sundays are normal service days for us at no overtime markup. Sundays after 6 PM and holidays carry a small after-hours fee, which we'll quote before we roll.

What brands of AC do you service in Marion?

All major brands — Carrier, Trane, Goodman, Lennox, Rheem, York, Ruud, Amana, American Standard, Bryant, Payne. Our trucks carry universal capacitors, contactors, motors, and R-410A so most Marion repairs finish on the first visit.

My AC is blowing warm — what should I do before you arrive?

Flip the thermostat to OFF (not just up to a higher temp), wait 10 minutes, then switch back to COOL. Check that the outdoor unit is running and not iced over. If the indoor coil is frozen, leaving the system OFF with the FAN ON for an hour or two lets it thaw — we can diagnose faster on a thawed system. Then call us and we'll roll.

Find us serving Marion

Carnes and Sons Air Conditioning

Family-owned · Serving Marion, TX since 2010

(210) 600-5091

The Carnes family

AC out in Marion?

We'll have you cooling again today.

(210) 600-5091

Need a new system instead? See AC replacement pricing in Marion →