Question 1

How do I know if my AC is low on refrigerant?

Accepted Answer

Signs include reduced cooling, ice forming on the refrigerant lines or indoor coil, the system running constantly without reaching the set temperature, and warm air coming from the vents. A technician can confirm with a pressure test.

Question 2

How much does an AC refrigerant recharge cost?

Accepted Answer

R-410A recharges typically cost $200 to $500 depending on how much is needed. R-22 is significantly more expensive due to limited supply — often $100 to $200 per pound plus the service call.

Question 3

Can I buy refrigerant and recharge my AC myself?

Accepted Answer

No. EPA regulations require that only EPA-certified technicians purchase and handle HVAC refrigerants. This is both a legal requirement and a safety issue — refrigerant is a pressurized chemical that requires proper handling equipment.

Question 4

What's the difference between R-22 and R-410A refrigerant?

Accepted Answer

R-22 (Freon) is an older refrigerant that depletes the ozone layer — it was banned from production in the U.S. in 2020 and is now extremely expensive. R-410A (Puron) replaced it as the industry standard; it operates at higher pressures and is more efficient, but requires equipment specifically designed for it. You cannot put R-410A in an R-22 system — the components aren't rated for the higher pressure.

Question 5

What is R-454B refrigerant and why does it matter?

Accepted Answer

R-454B is the next-generation refrigerant replacing R-410A in new residential equipment starting in 2025. It has a much lower global warming potential (GWP) than R-410A, which is why the EPA is phasing R-410A down. R-454B is classified as a mildly flammable A2L refrigerant, so it requires updated safety standards and trained technicians — our team is already certified for A2L handling.

Question 6

Is R-22 Freon still available? How much does it cost?

Accepted Answer

R-22 is still available from reclaimed and stockpiled supplies, but the price has skyrocketed — expect $150–250 per pound or more, meaning a full recharge can cost $600–1,500+. By comparison, R-410A runs about $50–75 per pound. If your R-22 system needs a major refrigerant charge, it's usually more cost-effective to replace the entire system with a modern R-410A or R-454B unit.

Question 7

When was R-22 Freon phased out?

Accepted Answer

The production and import of R-22 was completely banned in the United States on January 1, 2020 under the Clean Air Act. Existing R-22 systems can still be serviced using reclaimed or stockpiled refrigerant, but the supply is shrinking every year and prices keep climbing. If you're still running an R-22 system here in WNC, we strongly recommend planning a replacement sooner rather than later.

Question 8

Should I replace my R-22 AC system or just keep recharging it?

Accepted Answer

If your R-22 system only has a minor leak and is otherwise in good condition, a recharge plus leak repair might buy you a year or two. But if it's over 15 years old or needs a major repair, replacement is the smarter investment — you'll get a more efficient system, lower operating costs, and avoid the escalating R-22 prices. Most of our customers in the Asheville area save enough on energy bills to offset a significant portion of the replacement cost within 5–7 years.

Question 9

What is the R-410A phase-down and when does it happen?

Accepted Answer

The EPA's AIM Act is phasing down R-410A production by 40% starting in 2024, with further reductions through 2036. R-410A won't disappear overnight — it'll remain available for servicing existing equipment for years — but new equipment manufactured after January 1, 2025 will transition to R-454B. If you're installing a new system now, ask us about R-454B-ready equipment to future-proof your investment.

Question 10

What are the signs of a refrigerant leak in my AC?

Accepted Answer

Common signs include the system blowing warm air, ice forming on the evaporator coil or refrigerant lines, a hissing or bubbling sound near the indoor or outdoor unit, and higher-than-normal electric bills from the compressor working overtime. In severe cases, you'll notice the system running constantly without reaching the set temperature. We use electronic leak detectors and UV dye to pinpoint the exact location of the leak.

Question 11

How are refrigerant leaks repaired?

Accepted Answer

The repair depends on where the leak is. Leaks at service valves, flare fittings, or solder joints can usually be sealed or re-soldered — that's a straightforward repair. Leaks in the evaporator coil or condenser coil are more serious and often require replacing the entire coil. We always locate and fix the leak before recharging — just topping off refrigerant without fixing the leak is throwing money away.

Question 12

Can I switch my AC from R-22 to R-410A refrigerant?

Accepted Answer

You cannot simply swap refrigerants — R-410A operates at nearly 60% higher pressure than R-22, and the compressor, coil, and line set in an R-22 system aren't designed to handle that. There are some R-22 'drop-in' replacements (like R-407C or MO99) that can work in existing equipment with modifications, but performance is never as good as a purpose-built system. In most cases, full system replacement is the right call.

Question 13

What's the difference between topping off refrigerant and a full recharge?

Accepted Answer

Topping off means adding a small amount of refrigerant to bring the system back to its rated charge — this only makes sense if the leak is small and has been repaired. A full recharge means recovering whatever refrigerant is left, repairing the leak, pulling a vacuum on the system, and charging it to the manufacturer's exact specification. A full recharge is the proper procedure and ensures the system runs at peak efficiency.

Question 14

How do different refrigerants impact the environment?

Accepted Answer

R-22 damages the ozone layer and has a high global warming potential (GWP) of 1,810. R-410A doesn't harm the ozone but still has a high GWP of 2,088 — which is why it's being phased down. The new R-454B has a GWP of just 466, roughly 78% lower than R-410A. Choosing a system with newer refrigerants is one of the most impactful things homeowners in Western NC can do to reduce their carbon footprint.

Question 15

Why does my AC need refrigerant in the first place?

Accepted Answer

Refrigerant is the lifeblood of your AC — it absorbs heat from the indoor air and releases it outside. Without the correct charge, the system can't transfer heat efficiently, leading to poor cooling, higher bills, and eventual compressor failure. A properly installed AC system should never need refrigerant added unless there's a leak — it's a sealed system, not something that gets 'used up' like fuel.

Question 16

What are A2L refrigerants and are they safe?

Accepted Answer

A2L refrigerants (like R-454B and R-32) are classified as 'mildly flammable' — they can ignite under very specific conditions, but they're much harder to ignite than propane or natural gas, and the flame propagation is slow. New safety standards (updated UL and ASHRAE codes) require leak detection sensors in equipment using A2L refrigerants. In normal residential use, they're considered very safe — the industry has spent years testing and validating them.

Question 17

How much does it cost to recharge my AC with refrigerant?

Accepted Answer

For an R-410A system, a typical recharge runs $200–500 depending on how much refrigerant is needed — the refrigerant itself costs $50–75/pound plus labor and leak testing. For R-22 systems, expect $500–1,500+ because the refrigerant alone is $150–250/pound. We always include a leak check with any recharge because adding refrigerant to a leaking system is wasting your money.

Question 18

What is the difference between R-32 and R-454B refrigerant?

Accepted Answer

Both R-32 and R-454B are next-generation A2L refrigerants designed to replace R-410A. R-32 is a single-component refrigerant with a GWP of 675 and is widely used internationally, especially by Daikin. R-454B is a blend (R-32 plus R-1234yf) with a lower GWP of 466 and has been adopted as the primary R-410A replacement in North America. Both are mildly flammable and require A2L-certified equipment and technicians.

AC Refrigerant Recharge — R-410A & R-22 Service in WNC

Professional AC Refrigerant Recharge — R-410A & R-22 Service in WNC in Asheville & Western NC

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R-410A vs. R-22: Know the Difference

Leak Detection First, Then Recharge

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AC Refrigerant Recharge — R-410A & R-22 Service in WNC FAQs

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