Possibly the pressure cycling switch.
Refrigerant is superheated when leaving the evaporator so that the compressor is not getting liquid along with the gas, becauseÊliquid can cause damage the compressor.
The most likely cause is the system is low on refrigerant. The second would be a defective pressure cycling switch.
Absolutely, in fact, if the AC compressor is cycling like that, low pressure is about the ONLY thing that can cause it. There is a pressure sensor in the low pressure side of the AC system. When the pressure drops too far it turns off the compressor to prevent damage. As the compressor runs it pulls refrigerant from the low side, compresses it and sends it to the condenser where it is cooled. When that happens there is less refrigerant available to the low side. There is no point in running a compressor if there is nothing left on the low side to compress, so it shuts down. After enough refrigerant works past the orifice and into the low side again, the low side pressure builds up and the compressor restarts.
Liquid slugging at the compressor can occur due to refrigerant maldistribution in the system, improper refrigerant charge levels, or flooding of the compressor with liquid refrigerant. This can lead to damage in the compressor components due to the inability to compress liquids effectively. Proper system design, control of refrigerant levels, and the use of accumulator devices can help prevent liquid slugging.
more likely the a/c system is low on refrigerant. try adding a can of R134 that should chance the cycleling of the clutch. the most accrate way is to evacuate and recharge.
The coldness
It could be as simple as a stopped up fuel filter.
Do not add refrigerant. You must completely evacuate the system, then fill it _by_ _weight_ to prevent overcharging. Overcharging can cause leaks and/or compressor failure.
You need oil in the compressor just as you need oil in your engine. If there is no oil, it will lock up and seize internally. yes it can cause damage to the bearings in the compressor. The unit has oil in it to lube
Common issues that can cause a home AC compressor to malfunction include low refrigerant levels, electrical problems, dirty coils, and mechanical wear and tear.
It could possibly
Restricting liquid refrigerant during charging helps prevent the compressor from being flooded with liquid, which could cause damage. It allows the refrigerant to enter the system as a vapor, which is more efficient for the compressor to handle. Properly charging the system with vapor also ensures that the refrigerant circulates effectively throughout the system.