Does AC compressor affect defrost?
Yes, your AC compressor runs when you turn on your defroster. Helps dry the air, to make the windows clear faster.
Why does the AC run when the defroster is on?
All cars run the AC compressor when the defroster is on. It’s not counterproductive. The AC removes moisture from the incoming air in order to keep the windows clear from fogging up. There are temps where the AC won’t run, the pressure switches and sensors will take care of that and turn off the compressor if the system is in danger of icing up.
Why is my air conditioner clutch not working?
If your Air Conditioning compressor isn’t working (the clutch won’t engage) then watch this video. The A/C switch on the dash switches the compressor on, with one exception. If the PCM (powertrain control module) senses low pressure in the low pressure fluid line, it will stop the compressor clutch from engaging to prevent any damage.
When to turn off the defroster on a car?
There are temps where the AC won’t run, the pressure switches and sensors will take care of that and turn off the compressor if the system is in danger of icing up. 5 Likes BillRussellJanuary 22, 2017, 6:17pm #4 not all cars… I’ve never owned a car that behaved that way. It should be up to the driver…
Why is my AC not running in Sub Zero?
If you remove the relay that controls the compressor clutch, the AC won’t run. In sub zero, the AC should not be running anyway because the computer controls the AC compressor clutch. Air temperature is one of the inputs it uses to decide whether to run the compressor or not.
If your Air Conditioning compressor isn’t working (the clutch won’t engage) then watch this video. The A/C switch on the dash switches the compressor on, with one exception. If the PCM (powertrain control module) senses low pressure in the low pressure fluid line, it will stop the compressor clutch from engaging to prevent any damage.
All cars run the AC compressor when the defroster is on. It’s not counterproductive. The AC removes moisture from the incoming air in order to keep the windows clear from fogging up. There are temps where the AC won’t run, the pressure switches and sensors will take care of that and turn off the compressor if the system is in danger of icing up.
There are temps where the AC won’t run, the pressure switches and sensors will take care of that and turn off the compressor if the system is in danger of icing up. 5 Likes BillRussellJanuary 22, 2017, 6:17pm #4 not all cars… I’ve never owned a car that behaved that way. It should be up to the driver…
If you remove the relay that controls the compressor clutch, the AC won’t run. In sub zero, the AC should not be running anyway because the computer controls the AC compressor clutch. Air temperature is one of the inputs it uses to decide whether to run the compressor or not.