LS - 1st and 2nd Gen (1990-2000) Discussion topics related to the 1990 - 2000 Lexus LS400

AC Air circulation switch is always switching !

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Old 07-26-11, 12:38 PM
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mar1
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Default AC Air circulation switch is always switching !

Hi guys, need some help, any one knows when the ac air circulation switch start switching constantly without me pressing it between inside and outside air !



when I start my ac and the weather is very hot it does this and the air starts to less cool and sometimes hot. I hope my question is clear.

thanks
Old 07-26-11, 02:59 PM
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PureDrifter
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it's supposed to do that depending on temperature and air quality.
Old 07-26-11, 07:43 PM
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mar1
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thank you for the reply, but can you clarify little more, I'm sure it is an indication of something wrong cause my car wasn't doing this before ! and the air starts to be hot.

does it have to do with freon pressure? did I over charge my system with it?

Originally Posted by PureDrifter
it's supposed to do that depending on temperature and air quality.
Old 07-29-11, 11:26 AM
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mar1
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this is a video of my problem:

http://www.youtube.com/watch?v=on4Q7iWzLq4
Old 07-29-11, 06:08 PM
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sam12345
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That's definitely not normal
Old 09-10-11, 01:31 PM
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change the blower motor switch and i think that would solve your problem, goodluck...
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