![]() ![]() This is achieved by a component known as a receiver or dryer. Before the refrigerant can cycle back through the system, any water that may have been created in the process needs to be removed. It is located in front of your vehicle's radiator so it is exposed to more air that flows through your car. ![]() The AC compressor is a long tube that goes back and forth through several cooling fins. The compressor is known as the power unit of the air conditioning system that moves refrigerant, or coolant, around the pipe and puts the liquid under high pressure before it is pumped into the condenser. Do you need assistance inspecting the state of your ac compressor in your vehicle?Ĭall Us today ! We have automotive ac specialists near you.Your vehicle's air conditioning system has many parts that remove heat from the warm air entering its system. Without refrigerant to move the oil, the auto ac compressor may not be properly lubricated and compressor lock up may result. The car engines in vehicles with the clutchless compressors should not be run without refrigerant in the A/C system. Low Refrigerant charge and electronically controlled compressor lock up ? An inefficient ac condenser will cause an auto ac compressor to lock up. Inefficient ac condensers and air conditioning compressor lock upĭebris on the condenser will affect the desuperheat, condensation and subcooling processes happening in the auto ac condenser.AC condenser with bent or missing fins will be unable to efficiently operate. Air and moisture inside the system will create excessively high operating pressures and temperatures and eventually could lead to a compressor lock up. Improperly replacing any component in the automotive air conditioning system where the system must be opened for replacement of the damaged part and not evacuating the system before recharging it with the proper amount and type of refrigerant will contaminate the ac system with air. The use of excessive Dye to help finding leaks in the ac system could create a contamination problem as well, increasing the normal working pressure of the ac compressor and the overall efficiency of the air conditioning system. The contaminated components must be replaced. Sealer can’t be removed from the A/C systems. The use of sealers to fix small refrigerant leaks will cause oil and refrigerant contamination and ultimately ac compressor lock up. Anything more than the correct type of freon and oil is a contaminant. AC compressors lock up due to ac system contaminationĪuto ac compressor damage may occur because of system contamination. Most compressor lock ups are the result of a lubrication problem. An undercharge or overcharge refrigerant condition will increase the air conditioning compressor temperature and a change in oil viscosity and lubrication characteristics. Refrigerant moves the oil inside the ac system and helps to cool down the ac compressor. SAE J2788 requires charge accuracy of +/- one-half ounce.Īttempting to charge by cans is History !! Car ac compressor lock up due to improper compressor lubrication. Being off as little as 2 ounces can cause problems.R-134a and R-1234yf ac system tolerances require charge rates that must remain or should be charged within +/- 5% of OEM recommendation. ![]() Modern auto a/c systems require super accurate charging. Inaccurate refrigerant(freon) charges increase the chances of auto ac compressor lock up. ![]()
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