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Old Oct 2, 2014 | 04:12 PM
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Default A/C problem

With AC light on, hot air comes out thru the driver's vents and cold air thru the passenger's vents. Also turning the passenger's temperature dial doesn't change the temperature display. Would appreciate any advice. Many thanks in advance!
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Old Oct 2, 2014 | 07:11 PM
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That's usually a sign for low refrigerant.
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Old Oct 2, 2014 | 08:09 PM
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Passenger's temperature dial doesn't change the temperature display.
NO it won't only the driver's side changes the display
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Old Oct 2, 2014 | 10:09 PM
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First off, check for codes. If not the drivers actuator, it could simply be low or Freon.
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Old Oct 3, 2014 | 09:48 AM
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thanks to all of you, I'll check the codes & see what comes up.
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Old Oct 3, 2014 | 10:06 AM
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New to C5s, just got mine last week, and just got the FSM Tuesday, but if it's blowing COLD on one side, and HOT on the other, it would seem that it's an issue with a vent door not moving correctly, and NOT a Freon charge issue.

If it was a Freon issue, it would seem to me that it would blow hot on both sides.

Just my $.02
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Old Oct 3, 2014 | 10:13 AM
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It could be either vettes are known for a/c being low and hot on one side and cold on the other
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Old Oct 3, 2014 | 05:07 PM
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JMelton, as you get more experience with the C5s you will see, that is not the case. It may make sense to you, but that is not the way the C5 AC system works. I don't have time to explain it, but as you read more you will find out the why.
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Old Oct 3, 2014 | 08:51 PM
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Add the freon and learn.
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Old Oct 3, 2014 | 11:34 PM
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Originally Posted by c5chines
Add the freon and learn.
Check codes first. If the problem is an actuator adding refrigerant is a waste of time and money.
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Old Oct 4, 2014 | 06:05 AM
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Add Freon
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Old Oct 5, 2014 | 04:17 AM
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As mentioned already. Low freon can very well cause it to be cold on one side and hot on the other. Also check the codes. If you get actuator codes you could have a bad actuator or it is just out of sync. They can be reset if that is the issue. I had both of my actuators go out. When that happened they made noise behind the dash trying to set themselves.
So if you don't have any HVAC codes or noises behind the dash then probably just low on freon.
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Old Oct 5, 2014 | 10:55 AM
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Originally Posted by rpe
With AC light on, hot air comes out thru the driver's vents and cold air thru the passenger's vents. Also turning the passenger's temperature dial doesn't change the temperature display. Would appreciate any advice. Many thanks in advance!
Mine did that and it was low on freon. It doesn't seem to make sense but it will do it.
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Old Oct 5, 2014 | 08:35 PM
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Actuator makes one side a different temp then the other. Check you codes to see which one is messed up. Temp **** not working sounds like ac controller were the **** is located is bad.
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