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Air conditioning turns hot

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Old Jul 29, 2015 | 02:47 PM
  #1  
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tycksena
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From: Arvada Colorado
Default Air conditioning turns hot

I have a '99 C5 and have had some troubles with the air conditioning. Every once in a while I will be driving with the A/C on cold and it will turn hot. I then turn the temp dial from cold to hot then back to cold again and it resets somehow and starts pushing cold air again.

Is there some door that is closing or temperature sensor or something like that going on that causes this issue?

Thanks in advance.
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Old Jul 29, 2015 | 03:12 PM
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From: Brunswick Georgia
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The doors get off track , you can reset though the dic , but sometimes it doesn't work. I have to reset it HVAC with my door open and when it gets cold before it gos to the hot,shut the car off and it should stay at that spot. It ghetto but works . you can also try resetting then slowly turn it down leaving it on a number till it gos back to outside temp for each number its a pita lol, you can also set it back on track sometimes put it on 70 and reset and anytime you take the battery off, put it on 70 and passenger in the middle.

Last edited by robert21122; Jul 29, 2015 at 03:16 PM.
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Old Jul 30, 2015 | 01:37 AM
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Pull and post the dic codes. Does the compressor continue to run when it gets hot?
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Old Jul 30, 2015 | 06:35 AM
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We can't properly diagnosis with no knowledge of what system you have. Manual or Dual Control?
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Old Aug 10, 2015 | 12:46 AM
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tycksena
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From: Arvada Colorado
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Originally Posted by BigGun
Pull and post the dic codes. Does the compressor continue to run when it gets hot?
The only DIC codes I have are P1637 and P1638 but those have to do with a starter wire that burned up on Friday. My car isn't running right now since I'm waiting to rewire the starter, but how would I be able to tell if the compressor is still running or not when it gets hot?

Originally Posted by dadaroo
We can't properly diagnosis with no knowledge of what system you have. Manual or Dual Control?
Sorry just a manual.
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