R-22 and R-410A Phase Out: What It Means for Your AC

By Ray Bennett · Updated 2 October 2026 · 6 min read · Checked against the sources at the end

R-22 and R-410A Phase Out: What It Means for Your AC

Short answer

You do not have to replace an air conditioner because of its refrigerant. EPA says an R-22 system can still be serviced, from recycled or stockpiled R-22 only, and an R-410A system can be repaired for its whole life, even with a new outdoor unit. What changed is new systems: they now use a refrigerant such as R-454B or R-32.

The R-22 phase out, and now the phase down of R-410A, worry a lot of people with an older air conditioner or heat pump. EPA’s answer is short: you are not required to replace a working system because of the refrigerant in it.

What the phase outs change is what a repair costs, what a technician is allowed to put back in, and what a new system has to use. This page goes through each one from EPA’s own guidance and the makers’ refrigerant pages.

Before you start

What to carry: a torch and your phone, to photograph the label on the outdoor unit. Five minutes.

Gas or electric? Either. The refrigerant is in the cooling side, the air conditioner or heat pump, whether the heat in winter comes from a gas furnace or from electricity.

Find the name of it. Bryant says the refrigerant is usually listed on the maker’s nameplate or sticker on the outdoor unit. Trane and American Standard say the owner’s manual lists it, and the company that services your system will know.

What EPA is firm about. A certified technician only. EPA says technicians must hold EPA Section 608 certification to service equipment containing R-22.

Nothing let out. EPA says it is illegal to release refrigerant on purpose during a repair, and that technicians must use recovery equipment.

No swapping refrigerants. EPA says its rules and the industry standards do not allow mildly flammable refrigerants such as R-32 or R-454B in a system that was not designed for them. Carrier says R-454B is not a drop in replacement for R-410A.

Which one you have

The three refrigerants in home systems, and what each one means for you. R-22 and R-410A systems can both still be serviced.

Check 1Free, five minutes

Read the label

The name on the plate. R-22, also written R22, is the old one, often called Freon. R-410A was sold under names such as Puron, Genetron AZ-20 and Suva 410A. Carrier sells R-454B as Puron Advance.

The age tells you too. Trane says R-410A replaced R-22 in systems made after 2009, and American Standard says units made in 2009 and earlier still use R-22.

Why they are going. EPA says R-22 harms the ozone layer. R-410A does not, but its global warming potential is high: Carrier gives it 2,088, against 466 for R-454B.

If yours is R-22

Check 2Free to keep; recharges cost more

Keep it running, and plan the swap

You can keep it. EPA says you are not required to stop using an R-22 air conditioner or to replace it. It suggests replacing it when you normally would, when it becomes old, inefficient or ineffective.

A recharge. R-22 has not been made or imported since 1 January 2020. EPA says servicing now relies on recycled or stockpiled R-22, and that the cost of servicing may rise as supplies shrink.

A leak. EPA asks homeowners to have technicians find and repair leaks rather than top up a leaking system: what a refrigerant leak really costs.

A dead outdoor unit. EPA says a broken R-22 outdoor unit cannot be replaced with an R-410A one. The R-22 indoor coil is not built for R-410A’s pressures, and R-410A is not an accepted replacement in an R-22 system, so the whole system is replaced.

If yours is R-410A

How EPA tells a repair from a new system. The difference decides which refrigerant can go back in.

Check 3Parts are still sold

Repair it for its whole life

Repairs are allowed. EPA says homeowners can maintain and repair their systems for the life of the equipment, and can replace a faulty outdoor unit, indoor coil or smaller part with a similar R-410A one.

One half at a time. EPA says an outdoor unit can be replaced now and the indoor coil later, and it is still a repair.

The parts. EPA says R-410A outdoor units, coils and other parts can still be made and sold to service existing systems. Those made from 2025 on are labeled “for servicing existing equipment only”.

The refrigerant. Trane says R-410A should be available for years, but will get more expensive as supplies shrink. EPA cut the allowance for making and importing HFC refrigerants, the family R-410A belongs to, to 60 percent of the old baseline in 2024, and it falls to 15 percent by 2036.

When you replace the whole system

Check 4A new system

Know what counts as new

What counts as new. EPA says replacing the outdoor unit and the indoor coil together is a new system, even if the refrigerant lines stay. So is a system in a newly built home.

The limit. A new system in a home must use a refrigerant with a global warming potential below 700. Carrier, Bryant and Trane moved to R-454B, and American Standard uses R-454B and R-32.

Old stock. EPA’s May 2026 rule lets an R-410A system still be installed if all its main parts were made or imported before 1 January 2025, until that stock runs out. Ask which refrigerant a quote is for, and have it written on the quote.

An R-454B outdoor unit on an R-410A coil. EPA says its rule does not settle this, and that it may be possible depending on the case. A mildly flammable refrigerant cannot go into a system not designed for it, so that is the technician’s call.

Deciding when. Carrier’s and Bryant’s pages both weigh the system’s age and the size of the repair, not the refrigerant alone: repair or replace.

R-22 and R-410A side by side

	R-22	R-410A
In systems made	Up to 2009	2010 to 2024
New supply	None since 1 January 2020	Still made, in shrinking amounts
Recharge	Recycled or stockpiled R-22 only	Still sold for existing systems
New outdoor unit	Not with R-410A, EPA says	A similar R-410A unit, EPA says
Must you replace it?	No	No

A system that needs topping up every year is leaking, whichever refrigerant it holds. The checks for a system that runs but does not cool are here: an AC not blowing cold air.

Questions people ask

Is R-22 still available?

Only what already exists. R-22 has not been made or imported since 1 January 2020, and EPA says servicing relies on recycled or stockpiled R-22.

Do I have to replace my R-22 air conditioner?

No. EPA says you are not required to stop using it or to replace it. A certified technician can still service it.

Can R-22 be replaced with R-410A?

Not in the same system. EPA says R-410A is not an accepted replacement in an R-22 system, and an R-22 indoor coil is not built for R-410A’s pressures, so the whole system is replaced.

Can R-22 and R-410A be mixed?

No. They are different refrigerants at different pressures, and EPA does not accept R-410A as a retrofit in an R-22 system at all.

Is R-410A banned?

Not for systems already installed. EPA says they can be repaired for their whole life, and R-410A parts are still made to service them. New systems must use a refrigerant below EPA’s limit of 700, such as R-454B, unless they come from stock made before 2025.

Can I still get an R-410A system installed?

Only from old stock. EPA’s May 2026 rule allows it when every part was made or imported before 1 January 2025, until that stock runs out.

Sources: EPA's homeowner brochure "Phasing Out HCFC Refrigerants To Protect The Ozone Layer" (EPA-430-F-09-080), EPA's "Frequent Questions on the Phasedown of Hydrofluorocarbons" and "Technology Transitions HFC Restrictions by Sector" (updated August 2026), EPA's May 2026 fact sheet on the Technology Transitions reconsideration rule, and the refrigerant pages of Carrier, Bryant, Trane and American Standard