AC and heat pump questions, answered
Short answers with the source named. Each links to the page that covers it in more depth.
How much does AC repair cost in Greenville, NC?
Published 2026 national figures put most AC repairs at $250 to $700, with a $375 average (Fixr), or $150 to $650 for common fixes (This Old House). A capacitor is at the low end; a compressor runs $600 to $3,000 or more. Greenville prices vary by company, so get the price before work starts.
Is it worth repairing an AC or heat pump that is more than 15 years old?
Depends what broke. Putting a compressor or an indoor coil into a unit that old is a big bet on a short future. A capacitor or a contactor, on the other hand, costs a few hundred dollars and usually buys more seasons. This Old House puts the typical life of a home cooling system at 12 to 15 years. In Greenville, where most outdoor units are heat pumps, the winter months add to the wear.
My AC runs all day but the house feels damp. Is it broken?
Not always. On a muggy night, when the low stays at 72°F or above (about 53.2 nights a year now in Greenville), the system has to pull water out of the air as well as cool it. An oversized system, leaky ducts in a crawlspace or a fan set to on instead of auto can leave the house cool but clammy. If the air at the vents isn't cold, something else is wrong.
Do I need a permit to replace my AC in North Carolina?
North Carolina waives building permits for most home work under $40,000, but not for adding or replacing heating or air-conditioning equipment (G.S. 160D-1110). A system replacement needs a permit and an inspection. The contractor usually pulls it.
Who will come to my house?
An independent HVAC company that serves your ZIP and holds a North Carolina heating contractor license. Tar River Cooling Desk only makes the match: one request from you, one call back from them, and no working down a list of numbers. You can check any contractor's license on the State Board's search at nclicensing.org.
Is Tar River Cooling Desk an HVAC company?
No. Tar River Cooling Desk is a free referral service. We pass your request to one independent HVAC company that serves your ZIP and holds a North Carolina heating contractor license. That company prices and does the work, and it pays us for the introduction.
Does North Carolina license HVAC contractors?
In North Carolina, installing or replacing an outdoor condensing unit or an air handler is heating contracting under G.S. 87-21, and it takes a heating license from the state licensing board. Home systems fall under Heating Group 3. You can check a license on the Board's search at nclicensing.org.
What does it cost to use this service?
Nothing. You pay only the HVAC company, and only for work you approve after seeing the price.
Why is my heat pump blowing cool air in winter?
In heat mode a heat pump's air feels warm, not hot, often in the 90s at the vent. It also runs short defrost cycles in cold, damp weather, when the outdoor unit may steam and the indoor air turns cool for a few minutes. Air that stays cold, or an outdoor unit caked in ice, needs a technician.
What temperature should I set my AC to in Greenville?
Greenville Utilities Commission suggests 76 to 78 degrees in warm weather, with the fan on auto rather than on, and raising it when you are away.
Can I run my AC after the outdoor unit was underwater?
Not until a technician has checked it. Floodwater can damage the electrical parts and the fan motor, and running it wet can make the damage worse. Keep the breakers off. Your AC after a hurricane or flood
Should I cover my outdoor AC unit before a hurricane?
Turn it off at the breaker before the storm arrives and clear loose items from around it. If you cover it, take the cover off before you run the system again, and check the manufacturer's instructions first. Your AC after a hurricane or flood
How much does a new AC unit cost for a 2,000 sq ft house?
Fixr's benchmark for that house, a 3 ton split system with new ducts, averages $8,750. The 3 ton unit by itself is $5,000 to $9,150 installed. Your real size should come from a load calculation, not the square footage. AC installation and replacement in Greenville
Do I need a permit to replace an AC unit in Greenville, NC?
Yes. G.S. 160D-1110 exempts most home projects under $40,000 from permits, but heating and air-conditioning equipment is carved out of that exemption. Your licensed installer normally handles it. AC installation and replacement in Greenville
Which brand of AC is most reliable?
The installer matters more than the nameplate. Correct sizing and the right refrigerant charge count for more than the logo on the cabinet. Choose the company, then compare the warranties on what it sells. AC installation and replacement in Greenville
Is there a federal tax credit for a new AC in 2026?
No. Per the IRS, 25C doesn't cover anything placed in service after December 31, 2025. AC installation and replacement in Greenville
Do I have to replace my R-410A air conditioner?
No. Per EPA, the rule leaves existing systems alone, and they can be repaired with R-410A parts. The R-410A refrigerant change, for homeowners
Can new R-410A systems still be installed?
Yes, but only if every component was made or imported before January 1, 2025, after EPA's May 2026 reconsideration. Anything with newer parts needs a refrigerant below 700 GWP. The R-410A refrigerant change, for homeowners
How much does it cost to repair an AC?
For most repairs Fixr's 2026 survey lands between $250 and $700, averaging $375. This Old House reports common fixes at $150 to $650 and a full spread of $100 to $1,000. Both are national numbers. What AC repair costs in Greenville
How much does it cost to fully replace an AC?
Fixr's installed range for new central air is $5,800 to $14,400 (average $8,750), and $5,000 to $15,000 for a heat pump, which is what most Greenville houses get. Tonnage and duct work account for most of the spread. What AC repair costs in Greenville
Why does a cheap part cost a few hundred dollars installed?
You are paying for the truck, the drive and the technician's hour. A capacitor itself is a small line on the bill. What AC repair costs in Greenville
Should I replace a 15 year old AC or heat pump?
If the repair is a big one, generally yes; This Old House's typical life is 12 to 15 years. If all it needs is a small part, fix it and start budgeting for the replacement. Repair or replace your AC
Is it worth fixing a compressor on an old AC?
Seldom. Fixr's range for a compressor is $600 to $3,000, and on a system near the end of its life that money buys more as a down payment on new equipment. Repair or replace your AC
Why does my house feel humid with the AC on?
Common causes are an oversized system that runs in short bursts, the thermostat fan set to on instead of auto, leaky ducts pulling in crawlspace or attic air, and a dirty coil or low refrigerant. Set the fan to auto and change the filter first. AC running but the house feels sticky
Should I run the AC fan on or auto in summer?
Auto, in most homes. With the fan on continuously, moisture on the coil can blow back into the house between cycles. Greenville Utilities Commission also recommends auto. AC running but the house feels sticky
How many tons of AC do I need for 2,000 square feet?
Using 20 BTUs a square foot you land near 40,000 BTUs, a 3 or 3.5 ton unit. Let a Manual J load calculation make the final call. What size AC a 2,000 sq ft Greenville home needs
Is a bigger AC better in a humid climate?
No. A unit that's too big shuts off before it has removed much water, so rooms feel damp, and the DOE says oversized systems cycle on and off more than they should. What size AC a 2,000 sq ft Greenville home needs
How often should an AC or heat pump be serviced in Greenville?
Once a year at least, in spring. A heat pump that also heats the house gets used most of the year, so many owners have it checked again in fall. AC and heat pump tune-ups in Greenville
How much is an AC tune-up?
This Old House lists $65 to $200, with a $133 national average. Ask what the visit includes and whether parts are extra. AC and heat pump tune-ups in Greenville
Why is my AC running but blowing warm air?
The usual suspects: a dead capacitor or fan motor outside, an indoor coil frozen behind a dirty filter, a refrigerant leak, or a thermostat left on fan only. Look at the filter and the breakers before you call. Air conditioner repair in Greenville, NC
Why is there water around my indoor unit?
Most often the condensate line is clogged or the drain pan is full. A Greenville summer pushes a lot of water through that line and algae grows in it. Shut the system off to stop the water and have a technician clear the line. Air conditioner repair in Greenville, NC
Why does my outdoor AC unit hum but not start?
Often a capacitor that's weak or dead. It can hold a charge with the breaker off, so this one is a job for the technician. Air conditioner repair in Greenville, NC
Why are my ducts sweating under the house?
Cool air inside the duct meets warm, humid crawlspace air on the outside. If the duct insulation or its vapor barrier is torn, condensation forms and drips. Have the insulation repaired and any leaky joints sealed. Ductwork and crawlspace ducts in Greenville
How much does duct cleaning cost?
Fixr's national figures are $300 to $700, with a $500 average for a 2,000 sq ft home. Local prices vary; get the full price before the crew starts. Ductwork and crawlspace ducts in Greenville
Is no AC an emergency in Greenville?
In summer it can be, especially for older adults and babies. Tell the company who is at home when you call, and move people somewhere cool if the house heats up. Emergency AC repair in Greenville
Can I run fans instead until the repair?
Fans help a little, but the CDC says they won't prevent heat illness when it's really hot, and the National Weather Service says not to point one at yourself above 90°F. An air-conditioned place is safer. Emergency AC repair in Greenville
Why is my heat pump blowing cold air in heat mode?
During a defrost cycle the indoor air can feel cool for a few minutes, which is normal. If it stays cool, the reversing valve, the defrost control or the thermostat setup may be the cause. Check that the thermostat is set to heat, then call. Heat pump repair in Greenville
Should I use emergency heat?
Only if the outdoor unit has failed. Emergency heat runs the electric heat strips alone, which costs more to run. Call for service rather than leaving it on for days. Heat pump repair in Greenville
How long does a heat pump last in eastern North Carolina?
This Old House puts a typical home cooling system at 12 to 15 years. A heat pump runs in both seasons, so it collects hours faster than an air conditioner of the same age. Heat pump repair in Greenville
Is $700 for a capacitor normal?
No published guide comes close. This Old House has an installed capacitor at $80 to $400 and Fixr at $100 to $400. Ask for the line items; something else may be bundled in, and you should see what. Is this AC quote fair?
Is $25,000 normal for a new HVAC system?
Fixr's published range for new central air tops out at $14,400, so $25,000 needs a reason, like a full duct replacement or two systems. Ask for the breakdown and get another bid. Is this AC quote fair?
Can I cancel an AC contract I signed at home in North Carolina?
In most cases, through midnight of the third business day, under G.S. 25A-39. The right goes away if you asked in writing for emergency work to start at once and it already has. General information only, not legal advice. Is this AC quote fair?
What should I set my thermostat to in a Greenville summer?
Greenville Utilities Commission suggests 76 to 78 degrees, with the fan on auto, and raising it when you are away. A ceiling fan lets you go about 4°F higher without losing comfort, according to the Department of Energy. How to lower your GUC cooling bill
Does GUC do free energy audits?
Yes. GUC lists free energy audits for residential and light commercial buildings. Call its Energy Services Office at 252-551-1521 to schedule. How to lower your GUC cooling bill
How much does a mini split cost in Greenville?
Fixr's national figures are $4,577 to $8,328 installed, with a $6,357 average. Multi-room systems cost more. Local prices vary, so get the full price in writing. Ductless mini split installation in Greenville
Can a mini split cool a bonus room over the garage?
Yes, if it is sized for the room's heat load. Bonus rooms often have knee walls and ceilings that are poorly insulated, so ask whether insulating first would let you use a smaller unit. Ductless mini split installation in Greenville
Does a North Carolina landlord have to fix the AC?
Yes, if the landlord supplied it. G.S. 42-42(a)(4) requires the landlord to keep supplied air conditioning in good and safe working order and repair it promptly, after the tenant gives written notice. This is general information, not legal advice. Renting in Greenville with a broken AC
Is a broken AC an emergency under North Carolina rental law?
It isn't on the statute's list of imminently dangerous conditions, which covers heat in winter but not cooling. Give written notice, and get anyone at risk somewhere cool. Renting in Greenville with a broken AC
Can I withhold rent if my landlord won't fix the AC?
Doing it on your own is risky and can lead to eviction proceedings. Talk to Legal Aid of North Carolina or a lawyer before you change how you pay rent. Renting in Greenville with a broken AC
What is the $5,000 AC rule?
Age in years times the repair price. When the product passes $5,000, This Old House suggests replacement may make more sense than repair. Treat it as a quick screen, nothing more. The $5,000 AC rule, explained
Does the $5,000 rule apply to heat pumps?
The arithmetic is the same, and it's a fine first pass. Just remember a heat pump works both seasons, so it ages faster than a cooling-only unit with the same birthday. The $5,000 AC rule, explained