What can happen if I charge my A/C with one of the cans from the parts store?
Overcharging can increase system pressure and damage major A/C components.
Quick Summary
Overcharging can damage your A/C system.
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Answered by Sonny Baird
Last updated 1/16/2026, 3:05:52 PM
This can cause damage to your system since you have no idea of knowing how much refrigerant was in your system when you started. Overcharging can cause issues with the system due to higher pressures that can damage your compressor and condenser because of this, leading to an expensive repair down the road.
Sonny Baird
General Sales Manager, West Mitsubishi
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