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a/c doesn't work after i changed my battery
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slycaper
New User
Aug 27, 2012, 4:42 PM
Post #1 of 9
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a/c doesn't work after i changed my battery
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a/c doesnt work after battery change, it blows hot air, fuses are visually intact, a/c button doesnt light up, any suggestions would be greatly appreciated
2004 chevy silverado 2500hd
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Discretesignals
Ultimate Carjunky
/ Moderator
Aug 27, 2012, 5:02 PM
Post #2 of 9
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Re: a/c doesn't work after i changed my battery
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Manual or automatic climate control?
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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Hammer Time
Ultimate Carjunky
/ Moderator
Aug 27, 2012, 5:11 PM
Post #3 of 9
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Re: a/c doesn't work after i changed my battery
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This is not so unusual on the Auto system. Whenever the battery power is interrupted, when it is connected again, the electric blend air doors go through a self calibration process and runs the door to full hot and full cold. Since they rarely use those positions, the doo tends to get stuck on full hot. I had a Blazer of my own that I actually had to drill a hole in a strategic spot in the case and insert a long, thing screwdriver to pop the door free.
Make sure you have checked all your fuses first.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
(This post was edited by Hammer Time on Aug 27, 2012, 5:12 PM)
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slycaper
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Aug 27, 2012, 5:29 PM
Post #4 of 9
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Re: a/c doesn't work after i changed my battery
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I have a manual climate control system. I've checked all the fuses. Any idea on how to reset the HVAC, could that be the problem?
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Hammer Time
Ultimate Carjunky
/ Moderator
Aug 27, 2012, 5:36 PM
Post #5 of 9
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Re: a/c doesn't work after i changed my battery
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It's a manual system. there is nothing to reset.
You really need a scan tool to diagnose this properly.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
(This post was edited by Hammer Time on Aug 27, 2012, 5:38 PM)
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slycaper
New User
Aug 27, 2012, 5:38 PM
Post #6 of 9
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Re: a/c doesn't work after i changed my battery
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you obviously have a better understanding of the problem then i do, how can i apply this schematic towards my situation?
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Discretesignals
Ultimate Carjunky
/ Moderator
Aug 27, 2012, 5:38 PM
Post #7 of 9
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Re: a/c doesn't work after i changed my battery
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Even though it is a manual system, it still goes through a calibration process once battery power is restored.
Turn the ignition off and disconnect the battery. Wait 30 secs and connect the battery back up. Start the engine and don't touch anything on the ac control panel for one minute while it calibrates. See if that works.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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slycaper
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Aug 27, 2012, 5:40 PM
Post #8 of 9
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Re: a/c doesn't work after i changed my battery
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i'll give it a try tomorrow afternoon, thanks alot, id by you a beer if you were here
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Discretesignals
Ultimate Carjunky
/ Moderator
Aug 27, 2012, 5:57 PM
Post #9 of 9
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Re: a/c doesn't work after i changed my battery
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Hopefully it will work out. I don't know why but I have this craving for a big ass bowl of chili.
Get it chilli = ac ha knee slapper
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
(This post was edited by Discretesignals on Aug 27, 2012, 5:58 PM)
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