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A/C fan quit working

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Old Sep 17, 2021 | 07:16 PM
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Default A/C fan quit working

On a trip this afternoon my a/c fan quit. I found it I selected outside air and cracked passenger window at 80mph there was enough cool air flow to not be miserable After a while fan started working but would not run at high speed. After I stopped at destination when I tried to turn on a/c fan again would not work No HVAC codes. This a 2004 CE with dual zone A/C. Hoping someone has ideas on how to troubleshoot. Thanks for any advice.

Last edited by UM Rebel; Sep 17, 2021 at 07:28 PM.
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Old Sep 17, 2021 | 07:57 PM
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Ok just tried heat. No fan there either.
Got cool air even when fan was not working by selecting outside air at 80mph. Not much but enough not to melt in this brutally hot Louisiana Autumn 😅
PS Therre is no real difference between a/C and heat with dual zone automatic Hvac. Just where you set the temperature.

Last edited by UM Rebel; Sep 17, 2021 at 08:08 PM.
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Old Sep 17, 2021 | 08:53 PM
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Originally Posted by C5club
I’d probably start with your blower motor. And also have the shop check your refrigerant charge.
Ha! What’s a shop? Are you talking about my garage? 🤣

Last edited by UM Rebel; Sep 17, 2021 at 09:00 PM.
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Old Sep 18, 2021 | 05:35 AM
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The first think I would have done is to check/measure if Fuse 51 is ok or not
This fuse is feeding the blower control .



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Old Sep 19, 2021 | 12:24 AM
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Pull the blower, see if there is a mouse nest in there.
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Old Sep 19, 2021 | 02:02 PM
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Originally Posted by jim993
Pull the blower, see if there is a mouse nest in there.
Ha! Is that a common problem? 😃
im going to get into it next week. Will let y’all know what I find.
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Old Sep 19, 2021 | 03:21 PM
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Before I screened every possible entry point. I had two mouse nests in the blower a month apart.
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Old Sep 19, 2021 | 05:31 PM
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Ok I’m going to add some weirdness. Today A/C is working perfectly. I did nothing. O
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