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

Digital AC control stuck on 60

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Old Jun 9, 2003 | 06:36 PM
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Default Digital AC control stuck on 60

I posted something about this befoe but wanted to get more input....the digital AC control in my 86 is stuck on 60 it will give the outside temp just fine and works ok but sometimes kicks on the heat when I sure don't need it,
So if I replace the control unit should it fix it or is there some AC brain hidden in the car and the thing in the dash is just the control part?
Thanks, C :thumbs:
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Old Jun 11, 2003 | 01:01 PM
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Default Re: Digital AC control stuck on 60 (The13Bats)

Does anyone know?
Thanks, C :confused:
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Old Jun 12, 2003 | 03:09 AM
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Default Re: Digital AC control stuck on 60 (The13Bats)

On my '90, there is a separate part called a programmer under the dash. This has some of the necessary logic built in. Mine went bad.
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Old Jun 12, 2003 | 11:02 AM
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Default Re: Digital AC control stuck on 60 (The13Bats)

See the Helms service manual. They have a good troubleshooting section on this. :cheers:
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Old Jun 14, 2003 | 02:17 AM
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Default Re: Digital AC control stuck on 60 (The13Bats)

I have some more to the story....I have been working on the weather strips and left the dome lamps on all night, my battery was beyond dead,:mad I put a charger on it and tonight when I took it out it lit up "check engine soon" and "low coolant", the ac control readout was no longer stuck on 60 but only blew heat, I went into a store and the second time I started it all the warning lamps stayed off and the ac controls now work with the exception it starts at 60 jumps to 65 then will go one degree at a time up to 90:confused:.....no method to the madness...... :banghead:
C.
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