Reads suction and liquid line pressures so we can compare actual charge against factory spec for R-410A and R-32 systems.
AC running but not cooling Greenville TX? We fix that fast
When your AC running but not cooling Greenville TX leaves you with warm air and a climbing thermostat, our techs find the fault fast. We handle AC runs but not cold Greenville TX calls across Hunt County, from clogged filters and failed capacitors to low refrigerant.
Serving greenville and nearby areas.
How big is the job?
Component repair
Fan motor, drain line, or a refrigerant leak at an accessible fitting.
- 1. Part swap A capacitor, contactor, or thermostat that tests out of spec.
- 2. Component repair Fan motor, drain line, or a refrigerant leak at an accessible fitting.
- 3. System-level Compressor, coil, or ductwork work planned in writing first.
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- 27Services from one local team
- 20Areas served around greenville
- Test firstWe measure before we quote parts
- Run testWe verify the temperature split before leaving
What our AC not cooling service includes
Every warm-air call includes a full diagnostic sequence, not just a part swap. Here's what's covered on a standard visit, and what we quote separately if we find it.
Work order
AC Running but Not Cooling- Full airflow inspection: We pull the air filter, check the evaporator coil for frost, and inspect the return duct for restrictions. Restricted airflow causes more warm-air complaints than most homeowners expect.
- Electrical component testing: Capacitor microfarad readings, contactor point inspection, and amp draw on the compressor and fan motor. You get the actual numbers, not a verbal 'it tested bad'.
- Refrigerant pressure check: Suction and liquid line pressures with a manifold gauge set, plus a wet-bulb reading with a psychrometer. This tells us whether charge is the problem or something else entirely.
- Condenser coil cleaning: We rinse the outdoor coil when it's fouled with grass, cottonwood, or dust. A dirty condenser raises head pressure and quietly steals cooling capacity all summer.
- Drain line flush: We clear the condensate drain and test the float switch. A clogged drain line can shut a system down and get misdiagnosed as a cooling failure.
- Written temperature split report: Before and after supply and return temperatures, recorded on your invoice. A healthy system runs an 18-22 degree split. If yours doesn't, we keep working.
What the first warm-air visit covers
First visit
We inspect airflow, test electrical components, and check refrigerant pressures, then explain what failed.
Warm-air AC help at your home
We handle warm-air calls on houses across Greenville and Hunt County.
Split systems
Indoor and outdoor units tested together
Mini-splits
Blower wheel and charge checks
Attic air handlers
Coil, drain, and float switch service
Older homes
Duct and return airflow measured
Warm-air AC help at your business
Rooftop and light commercial units diagnosed with amp and pressure readings.
Retail spaces
Sales-floor cooling restored fast
Small offices
Zoned systems checked unit by unit
Rental duplexes
Written readings for property owners
AC running but not cooling Greenville TX: what's actually wrong
Warm air from a running system is a symptom, not a verdict. We measure airflow, electrical draw, and refrigerant pressure so the repair targets the part that actually failed.
AC running but not cooling Greenville TX is a diagnostic service that traces why your system blows air that never gets cold. The blower runs, the thermostat calls for cooling, but the supply air sits at 75-80 degrees instead of the 55-60 degrees a healthy system delivers. Common culprits include a dirty air filter, a failed capacitor, a clogged condenser coil, low R-410A refrigerant, or a thermostat malfunction. We test each one in order.
Greenville summers push equipment hard, and by October many systems have logged a full season of 95-degree days. That's when AC runs but not cold Greenville TX complaints spike. If you're searching for AC running but not cooling near me Greenville TX, we cover 75401 and 75402 with same-day appointments. Most warm-air calls trace back to airflow or electrical faults, not a dead compressor.
- What it is
- Diagnosis of a running system that won't cool
- When it helps
- Warm vents, frozen coils, short cycling
- What you get
- Meter readings and a temperature split report
How our AC not cooling diagnosis works
Five steps, one visit for most jobs. Here's exactly what happens from the phone call to the final temperature reading.
Tools and methods we use on warm-air calls
Each method answers a different question. Together they leave very little to guess.
Measures amp draw on the compressor and fan motor. A reading against nameplate rating tells us whether a motor is failing or already failed.
Tests capacitor microfarads, contactor coil voltage, and low-voltage control wiring. This is the first tool out of the bag on most warm-air calls.
Sniffs out refrigerant leaks at line sets, flare fittings, and Schrader valves before we add a single ounce of charge.
Measures wet-bulb and dry-bulb temperatures at the return and supply so we can calculate the actual temperature split.
When Greenville homeowners call us
A 1990s ranch house in Overbrook with a Carrier system blowing 78-degree air on a 98-degree afternoon.
We tested the run capacitor, found it reading 22 microfarads against a 35 rating, and replaced it from the truck stock.
HomesA duplex in 75401 where both units ran but neither cooled, and the tenant had already replaced the filters.
Both systems showed low suction pressure.
HomesA small retail space on Woodruff Road where the rooftop unit ran constantly but the sales floor stayed at 80 degrees.
Amp readings showed the condenser fan motor drawing locked-rotor current.
BusinessesAn older home near Augusta Road with a mini-split in a converted attic that ran but never got cold.
The blower wheel was caked with dust and the charge was 15 percent low.
Homes
How AC running but not cooling plays out in Greenville
Greenville sits in Hunt County, where summer highs regularly hit 95 to 100 degrees and systems run near-continuously from June through September.
Downtown Greenville
Older homes with original ductwork often have restricted returns, which we check first on any warm-air call.
West End
A mix of renovated houses and new builds, so equipment ages vary widely and we stock parts for both.
North Main
Mature shade trees drop debris on condenser coils, so we clean outdoor units on most visits here.
- Downtown Greenville
- West End
- North Main
- Augusta Road
- Woodruff Road
From problem to finished result.
Slide to compare the photo with an illustrative inspection view. It is generated from the photo, not a measurement.
PhotoFailed capacitor in a West End ranch house
Before: A 1998 Carrier system ran constantly but supplied 78-degree air on a 99-degree afternoon. The homeowner had replaced filters twice with no change and was quoted a full system replacement by another company.
After: We measured the run capacitor at 22 microfarads against a 35 rating, replaced it, and cleaned a grass-packed condenser coil. Supply air dropped to 58 degrees within 25 minutes, and the system cycled normally for the rest of the season.
Refrigerant leak on a duplex line set
Before: Both units in a 75401 duplex ran but neither cooled, and suction pressures were low on both. The property manager had already paid for one recharge that didn't hold past three weeks.
After: An electronic leak detector found a leaking Schrader valve on one unit and a rubbed line set on the other. We repaired both, pressure-tested, and recharged with R-410A. Both systems held charge and returned to a 20-degree split.
Rooftop fan motor on Woodruff Road
Before: A retail rooftop unit ran nonstop while the sales floor sat at 80 degrees. Amp readings showed the condenser fan motor drawing locked-rotor current, and the contactor points were badly pitted from constant cycling.
After: We replaced the fan motor and contactor, then verified head pressure dropped back into normal range. The sales floor reached 72 degrees by mid-afternoon and the unit stopped running continuously.
Warm-air problems we solve in Greenville
Most AC running but not cooling calls come down to one of these five failures.
AC runs but the vents blow warm air
We test the capacitor, contactor, and refrigerant pressures in sequence.
Evaporator coil freezes into a block of ice
A frozen coil blocks airflow completely, so the system runs nonstop without cooling anything. Left alone, it can flood the drain pan and damage ceilings.
Outdoor unit hums but the fan won't spin
A stalled condenser fan spikes head pressure and trips the system on high-pressure lockout. The compressor takes the worst of it.
Thermostat calls for cooling but nothing happens
A failed contactor or blown low-voltage fuse leaves you with a silent system and a house that heats up fast in a Greenville afternoon.
System short cycles and never reaches setpoint
Frequent start-stop cycles wear out the compressor and drive up your power bill while the house stays warm and humid.
Why Greenville homeowners call us first
Warm air is rarely a dead system. It's usually one failed part, and finding it fast is what keeps your repair bill small.
Same-day warm-air diagnosis
We run a full pressure and electrical check on arrival, usually within 90 minutes of your call.
We test before we replace
A capacitor, contactor, or fan motor gets bench-tested with a multimeter and clamp meter before we quote a replacement.
Refrigerant work done to code
No venting, no guesswork, no topped-off systems that leak again in a month.
Repairs that hold through next summer
Every repair ends with a 20-minute run test and a temperature split reading at the return and supply.
What AC not cooling repair costs in 2026
Diagnostic time is included when you approve the repair.
Included
Quoted after a first look
- Full airflow inspection
- Electrical component testing
- Refrigerant pressure check
- Condenser coil cleaning
What changes the scope
Quoted after a first look
- Failed component type
- Refrigerant leak location
- System age and brand
- Access and attic conditions
What you receive after the visit
Clear records you can keep and share.
Meter readings
Capacitor, amp draw, and pressure numbers
Temperature split
Return and supply readings before and after
Repair summary
What failed and what we replaced
Local experience with warm-air AC calls
Our technicians work on Carrier, Trane, Lennox, Goodman, Rheem, York, American Standard, Bryant, Mitsubishi Electric, Daikin, and LG equipment every week.
Capacitor reading
Microfarad value against the rating on the can tells us if it's weak.
Amp draw
Compressor and fan motor current compared to nameplate tells us if a motor is failing.
Pressure readings
Suction and liquid pressures compared to spec show whether charge is low.
Do we cover your part of greenville?
Type your ZIP or town to check. If it is not listed, call and ask.
greenville ZIP codes
- 75401
- 75402
Towns we serve.
Based in greenville and covering the places around it. Pick one for local details.
What Greenville homeowners say
Our AC was running but blowing 80-degree air on a Saturday. The tech tested the capacitor first, showed me the reading, and had a replacement on the truck. Cold air in under two hours. He also cleaned the condenser coil, which was packed with grass clippings. Fair price and no pressure to buy anything else.
I called about AC runs but not cold and expected a sales pitch for a new unit. Instead they found a refrigerant leak at the line set, repaired it, and recharged with R-410A. That was two summers ago and the system still holds charge. They saved me thousands.
We manage several rentals in 75401 and 75402, and warm-air calls are constant in July. Greenville CoolCraft gives us a written temperature split reading on every job, so I can prove the repair worked to the owner. That documentation alone is worth the call.
Frequently Asked Questions
Short answers for the first few minutes. The team can cover the rest.
Still have a question?
Describe what you are seeing and we will point you to the right next step.
(903( 304-5500The most common causes are a clogged air filter, a failed run capacitor, a dirty condenser coil, or low refrigerant from a leak. In Greenville, cottonwood and grass buildup on the outdoor coil is a frequent culprit from spring through fall. We test airflow, electrical components, and refrigerant pressures in that order to isolate the real fault.
Diagnostic time is included when you approve the repair. You get the number before we start, not after.
Yes, and it's one of the most misdiagnosed causes. When charge drops, suction pressure falls and the evaporator coil can freeze, which blocks airflow and leaves you with warm vents. We use a manifold gauge set and electronic leak detector to confirm the leak location before recharging with R-410A.
Greenville CoolCraft handles warm-air calls across 75401, 75402, and the surrounding Hunt County area, including Downtown Greenville, the West End, and North Main. Call (903) 304-5500 and we'll schedule a same-day diagnostic for most addresses. Bring us the thermostat reading and we'll bring the right parts.
Related Services
Other services from the same team.
- AC Blowing Warm AirWarm air from the vents points to a compressor, reversing valve, or charge problem.
- AC Leaking WaterA clogged drain line or a frozen evaporator coil sends water into your ceiling or floor.
- AC Frozen Evaporator Coil RepairIce on the indoor coil means restricted airflow or low refrigerant.
AC running but not cooling Greenville TX? Call now
(903( 304-5500Warm vents don't fix themselves, and every day you run a struggling system raises the odds of compressor damage. Call (903) 304-5500 and we'll schedule a same-day diagnostic across Greenville and Hunt County.
Get in touch with our crew
Call (903) 304-5500 and you will talk to someone who knows cooling, not a call center script. We answer weekdays from 8 a.m. to 6 p.m. If you are in ZIP 75401 or 75402, we are usually nearby.