What Changed in 2025
The EPA banned new R-410A home AC units as of January 2025. Old units can still run and get coolant added, but the supply will shrink over time. This may push repair costs up for older units.
Coolant Phase-Out Guide
R-410a Phase Out Sacramento
R-410A is on the way out. New AC units now use R-454B or R-32. Here is what that means for your home.
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R-410A Phase-Out: What Sacramento Homeowners Need to Know
The AIM Act set a firm cutoff. As of January 2025, makers can no longer build new home AC units with R-410A. Units sold from 2025 on use R-454B or R-32 instead. If you have an older unit, it can still run and get serviced. But repair costs may rise as R-410A stock gets used up. Fresh Air Heating and Air has installed 900+ units since 2009. We can tell you when to fix your old unit and when a new one makes more sense.
New Coolants: R-454B and R-32
R-454B is used by Carrier, Trane, Rheem, and Lennox. R-32 is common in ductless units from Daikin and Mitsubishi. Both have a much lower global warming rating than R-410A. These are A2L class, meaning they are mildly flammable and need special tools.
Can You Retrofit Your Old Unit
No. Old R-410A units cannot switch to R-454B or R-32. The parts and seals are not built for the new coolants. If your unit needs a major coolant fix, a full new unit setup may be the smarter call.
What This Means for You
- Your current unit can keep running and receive R-410A top-offs for now.
- R-410A prices may go up as supply drops over the next few years.
- New units from 2025 on all use R-454B or R-32 and need trained techs.
- You cannot swap coolant types in an existing unit.
- Fresh Air gives free in-home checks so you know your unit's real condition.
- We serve Sacramento, Elk Grove, Folsom, Roseville, and all nearby towns.
Timing Your Next Move
If your AC is under 10 years old and runs well, you can wait. Keep up with yearly tune-ups and monitor coolant use. R-410A will stay available for service for years, just at a higher cost.
If your unit is 12 or more years old or has had multiple big repairs, now is a good time to price a new unit. A new R-454B or R-32 system costs $4,500 to $12,000 for a single-zone AC setup. Fresh Air uses milestone billing so you pay in stages, not all at once. We can install most homes in about 48 hours.
R-410a Phase Out Sacramento FAQ
Is R-410A illegal to use now?
No. Using R-410A in existing units is still legal. Only making and importing new equipment that uses it is now banned. You can still buy R-410A coolant for service.
Will my repair cost go up soon?
It may. As reclaimed and stored R-410A gets used up, prices often rise. If your unit needs a big coolant fix now, weigh that cost against the price of a new unit.
How do I know if a new unit uses R-454B or R-32?
Ask your tech or check the unit label. Fresh Air can tell you right away which coolant your new unit will use and what that means for long-term service.
Does Fresh Air work on new R-454B and R-32 units?
Yes. Our techs are trained and equipped for A2L coolants. We hold CSLB license 945361 and carry full insurance.
Get a Free Honest Assessment
Call Fresh Air Heating and Air at (916) 416-8181 or visit our contact page. We give free in-home checks and tell you straight whether to fix or replace your unit. We have served Sacramento and the greater Sacramento Valley since 2009.