Will Low Refrigerant Cause the Compressor to Not Engage

Can Low Freon Prevent the AC Compressor from Turning On? Yes, low refrigerant (Freon) can prevent the AC compressor from engaging. Modern air conditioning systems use a low-pressure switch that automatically disables the compressor when refrigerant levels are too low. This is a built-in safety feature to prevent the compressor from running dry, overheating, or…