A/C Compressor on when HVAC displays off and Off when hvac displays On

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03YukonNH

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So I thought I had a compressor problem because when I pressed the A/C (snowflake) button on the HVAC controller, the A/C compressor would not come on. I could hear the compressor clicking but it was not coming on. Well come to find out, the compressor actually comes on when the A/C is turned off and stops running when the A/C is turned on (snowflake displays on LCD screen on dash). Basically the system is just working opposite of the way it should. Has anybody had this problem before? I have tried resetting the system by disconnecting the battery and holding the positive and negative cables together. I also pulled the fuse for the A/C under the hood and left it out for about 10 minutes. I then put the fuse back in and started the car. Any help would be appreciated.
 

TnTahoe

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Mine does this as well but if you look closely at the display when the snowflake is there, mine shows a line thru like the a/c is actually off
 
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03YukonNH

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Mine does this as well but if you look closely at the display when the snowflake is there, mine shows a line thru like the a/c is actually off

Thanks for the response. I guess it helps to read the owners manual. I looked into it this afternoon and it stated the snowflake has a line thru it and actually means the a/c is off. Kind of counterintuitive since you would assume the snowflake display means A/C is on. The line thru the flake is not easy to see.
 

Eagle

Thansk for all the help -STAFF!
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lol... i had the same confusion when i first got mine.
 

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