Want this question answered?
On a vehicle with a compressor with a cycling clutch, yes.
The most likely reason the compressor is not coming on is because you are low on freon. The low pressure switch will keep the compressor from cycling on because damage to your compressor would result. You can jumper across the low presure switch with the engine running and A/C turned on, ( for short time only) this will provide you with question is my compressor clutch good, or am I just low on freon. The AC compressor relay switch may need to be replaced
Engages and disengages the compressor clutch as needed.
You have a cycling clutch compressor. Turn the AC on max, let the car for five minutes or so, go look at the compressor. You should see the clutch engaging and disengaging the compressor as the pressure builds and drops.
Hey Grady==You don't say what kind of car you have but most don't have relays on the compressor. Ihere is a cycling switch on the accumulator that when it is low will keep the compressor from engaging. GoodlukcJoe
Yes, in order for the compressor to take on the new coolant and oil charge the compressor ideally should be running. It is posiible to begin charging the system with freon prior to compressor initiation, however to get an accurate reading of the pressure in the system the compressor should be cycling with differential valve operating properly. If it is clogged or the compressor is not cycling then then low side reading will give an elevated pressure while charging the system. Does that make sense?
The 1997 Chevy Lumina 3.1 liter low pressure air conditioning cycling switch can be found on the air conditioning compressor. The switch will be on the top of the compressor.
If you suspect the fuse, check ALL of them. It also has a limiter switch in the wiring just before the compressor and a cycling switch on the accumulator line.
Have the refrigerant level in the A/C system checked. Rapid cycling of the compressor can be one of the signs that your refrigerant level is low.
Most automotive AC compressors use a cycling clutch compressor, where the clutch is engaged by pressure switches which will engage the compressor clutch when the pressure reaches a predetermined low level, and disengages it when it reaches a predetermined high pressure.
unplug it and let it thaw. The vent could be frozen over.
AnswerCheck the manual... where you empty...might need more than 2 cans before the compresor will get full charge.The compressor is about to go outNone of the above - this is normal operation of a cycling clutch compressor.