By Dale Hutchins · September 18, 2026
Car A/C systems are sealed, so if the air is getting warmer, refrigerant is escaping somewhere. Topping it off without finding the leak only buys a few weeks.
A spring performance test measures vent temperature and system pressures, and adds UV dye so small leaks show up under a light.
Low refrigerant also starves the compressor of the oil it carries, which is how a small leak becomes an expensive compressor replacement in the middle of summer.
If your air is already blowing warm, run the defrost setting for a minute before you come in. It engages the compressor and helps us reproduce the problem.
