Repair or replace an R-22 air conditioner in New Orleans

By Gail Barlow, HVAC Guides Editor · Updated September 2026

How to tell if your system uses R-22

Look at the nameplate on the outdoor unit. It lists the refrigerant type, often as R-22 or HCFC-22. Systems built from 2010 onward were generally not charged with R-22 at the factory, so most R-22 systems in service today are well over a decade old.

If the nameplate is faded or missing, a technician can identify the refrigerant from the gauges and fittings during a visit.

Why R-22 repairs cost so much

R-22 was phased out because it harms the ozone layer. From 2020 on, no new R-22 has been produced or imported, and the only supply is recovered, reclaimed or old stock. That keeps prices high and rising, and every pound added during a repair is expensive.

Adding refrigerant without fixing a leak is the worst value of all: the charge leaks back out, and the next summer you pay again.

Repairs that still make sense

Not every failure involves refrigerant. A failed capacitor, contactor, fan motor, thermostat or clogged drain can be fixed on an R-22 system at the same cost as on any other system, and if the rest of the unit is sound, those repairs are often worth doing.

The question to ask is whether the repair buys you a few more reliable years, or just one more summer before a bigger failure.

When replacement is the better answer

Refrigerant leaks, a failed compressor and a leaking indoor or outdoor coil are the usual turning points. Each requires refrigerant work on a system that is already old, and the cost can approach a meaningful share of a new system that would also be more efficient.

Replacement also brings the whole system up to date: a new indoor coil matched to the outdoor unit, a current refrigerant, better humidity control and a fresh warranty.

About substitute refrigerants

Some refrigerant blends are sold as replacements for R-22 in existing systems. They are not true drop-in substitutes: they can change capacity and efficiency, may require oil and component changes, and should never be mixed with R-22 already in the system.

R-22 systems cannot be converted to the refrigerants used in new equipment by simply changing the refrigerant. A modern system needs matching components designed for its refrigerant.

Planning a replacement on your schedule

If your R-22 system is still running, the best time to plan its replacement is before the next major failure. That lets you compare quotes, decide between an AC and a heat pump, check the ductwork and schedule the work in spring or fall.

If it fails in the middle of summer, you will still have options, but fewer of them, and the decision will be made in a hot house.