Your outdoor unit’s nameplate tells you which refrigerant you have, and that one fact shapes the repair-or-replace decision. Climate Pros Tucson can match you with a licensed pro, and this guide covers what to know before that call.
How do you find out which refrigerant you have?
Look at the data plate on the outdoor condenser. It names the refrigerant, such as R-22 or R-410A. Take a photo and have it ready when you call. If the plate is unreadable, the pro can identify it with the model number.
What is true about R-22 in 2026?
R-22 production and import were banned in the US as of January 1, 2020, according to the EPA. Existing R-22 systems can still be serviced with recycled or previously produced refrigerant. Ask the pro whether they can get R-22 and what it will cost before you approve a recharge. A caller who just wants a temporary top-off should ask the pro how long the supply and the repair are likely to last.
What is true about R-410A?
The EPA’s rule on residential split and unitary systems sets a global warming potential limit of 700. The installation compliance date was January 1, 2025, but there is no installation compliance date for systems whose specified components were all manufactured or imported before that date. In plain terms: R-410A is not banned. Existing R-410A systems can still be serviced, and equipment built before 2025 may still be installed.
What about R-454B?
R-454B is one refrigerant name you may see on newer equipment. The EPA rule sets a limit, not a refrigerant, and manufacturers choose how to meet it, so no single blend is required. If a quote lists R-454B equipment, ask the pro how it affects service and parts for your model.
Top-off, repair or replace?
A system doesn’t use up refrigerant. If it is low, it leaked. That makes the key question whether the leak can be found and fixed.
| Situation | Reasonable path |
|---|---|
| Newer R-410A system, small findable leak | Repair the leak, then recharge |
| R-22 system, leak found in an accessible spot | Compare the repair against replacement |
| R-22 system, repeated top-offs, no leak repair | Ask whether repeated recharges are worth it |
| Older unit with other failing parts | Price replacement alongside the repair |
Ask whether the pro uses a leak test, what the quote includes, and how much refrigerant they expect to add. Anyone handling refrigerant must hold EPA Section 608 certification. A company that proposes several pounds of R-22 with no leak repair deserves a second opinion.
Tucson’s airport averages about 3,424 cooling degree days a year (1991-2020 normals), so a leaking system loses ground through a long season. See repair or replace for your AC, refrigerant leak signs and the AC repair service page. Our Tucson HVAC hub lists the places we cover.
Quick answers
Is R-22 illegal to use in 2026?
No. Production and import were banned, but existing systems can be serviced with recycled or previously produced R-22.
Can I switch an R-22 system to R-410A?
That is a question for the pro. The two are not interchangeable in the same equipment, and a conversion usually involves more than refrigerant. Ask what the quote covers.
Before you approve a recharge
Call (520) 353-2520 and we’ll match you with a licensed local pro. Bring a photo of the nameplate.