Auto Air Conditioning Compressor Cycles On And Off

Although it may be alarming the first time it happens at a stoplight or when you are idling at the store it is very normal.

Auto air conditioning compressor cycles on and off.

I added just a quarter can of refridgerant to it just in case it is low to see if it alleviated the situation. The air conditioner compressor was rapidly cycling on and off. Without the cycling switch to activate the compressor s clutch the ac system will not be pressurized correctly and the system will be unable to produce any cold air as a result. Since the mid 1990s most cars equipped with air conditioning have also been outfitted with electronic modules that tell your car s ac compressor to cycle on and off.

In the words of many repairmen an ac compressor is the heart of an ac system. A full cooling cycle occurs from the time that the unit kicks on to the time that the temperature you set at the thermostat is reached and the unit kicks back off again. Pressure on low side ranges from 35 45 psi. Is your air conditioning system turning on and off right away after only a few seconds or minutes of running.

Its fairly quick and sporadic. In simple terms an ac compressor is a pump which creates the heat by putting the air conditioning refrigerant under extremely high pressure. There is no pattern to it. If your air conditioning unit turns on and then off immediately then you most likely have problems with the electrical components or the run capacitor.

Air conditioner short cycling occurs when something within the system prevents your unit from completing a full cooling cycle. Air conditioner short cycling simplified. I didnt want to add more in case i. I turned the a c off and stopped putting r 134a into it becuase the compressor cycling was almost causing the car to die from the load it was putting on the engine.

Regardless if idling or driving the a c compressor clutch cycles on and off constantly.