disable a/c when using defrost
#1
#5
Thats old school thinking. My dad used to think he should disconnect the AC compressor in the winter to prevent damage. Defrost needs dry air to work, and thats why all cars run the AC in defrost mode. It has no ill effect on the compressor and probably helps keep oil circulated. Just leave it alone and enjoy how nice it works.
#6
#7
Thats old school thinking. My dad used to think he should disconnect the AC compressor in the winter to prevent damage. Defrost needs dry air to work, and thats why all cars run the AC in defrost mode. It has no ill effect on the compressor and probably helps keep oil circulated. Just leave it alone and enjoy how nice it works.
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#11
well scott seemed to understand the question, I drive with the defrost 99% of the time, if/when I want ac to run with the defrost I would prefer to simply hit the a/c button, however on a 7 hour hwy run, I have 0 need to use the a/c for the whole drive, and yet I prefer not to have the heat come from the dash or floor, keep thinking.....
#13
well scott seemed to understand the question, I drive with the defrost 99% of the time, if/when I want ac to run with the defrost I would prefer to simply hit the a/c button, however on a 7 hour hwy run, I have 0 need to use the a/c for the whole drive, and yet I prefer not to have the heat come from the dash or floor, keep thinking.....
#14
Depends on how its done. As with anything that voids your warranty, they have to find out you tampered with it first, and that your tampering led to an issue. I guarantee you they do not pull apart any modules to check them. If the bcm isn't doing what its supposed to, bam! new bcm. same with the turn signals, pcm, window motors, radio ect. If you being it in for an defroster issue and they see the ac doesn't turn on and get no signal from the hvac unit, they will just replace the hvac unit.