C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Interior temp control buttons

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Old Aug 24, 2016 | 07:48 AM
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jered1's Avatar
jered1
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Default Interior temp control buttons

My 1987 convertible interior temp control has a warmer and cooler buttons. with a/c at 80 degree it will go to 81 but not 79. Right now I am stuck with 81 degrees. Do I need to swap out this button control unit for a working one? Or is there some other problem? If swap is needed is there an online instruction available?
Thanks for any help I can get.
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Old Aug 24, 2016 | 10:10 AM
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antfarmer2
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Does that one self test like my 94? Look on youtube to see how. Might just need cleaning.
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Old Aug 25, 2016 | 02:58 AM
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Cliff Harris
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You need to take the HVAC control head apart and clean the button contacts.

Look here for info:

https://www.corvetteforum.com/forums...post1568603057
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