Signs Your AC Is Low on Refrigerant
- Ice on the copper line or the indoor coil.
- Warm or barely cool air from the vents.
- The system runs constantly and the house never reaches the set temperature.
- A company has recharged it before and it's low again.
Why a Recharge Alone Isn't a Repair
AC refrigerant leak repair in Tucson starts with finding the leak. An AC system is sealed, so refrigerant doesn't get used up. If it's low, it's leaking. Adding refrigerant without fixing the leak just delays the next visit. A leak detection test typically costs $100 to $330, based on HomeGuide's 2026 averages.
R-410A and R-22 Refrigerant Prices
| Refrigerant | Price per pound, installed |
|---|---|
| R-410A | $50–$80 |
| R-22 (older systems) | $90–$150 |
R-22 hasn't been produced or imported in the US since 2020, which is why it costs more. A system that still uses it is often a candidate for AC replacement in Tucson.
Can an R-410A System Still Be Repaired?
Yes. The EPA says existing R-410A systems can keep being repaired for their whole life, including a new compressor or outdoor unit. Be wary of anyone who says the new refrigerant rules force a replacement.
TEP Pays Toward Refrigerant Charge Repair
For AC refrigerant leak repair in Tucson, TEP's Efficient Home Program pays $80 toward a refrigerant charge repair done by a participating contractor, as part of an AC tune-up.
Sources: HomeGuide, US EPA, TEP Efficient Home Program.