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2020 Chevy Blazer 3LT AWD 3.6
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Discussion Starter · #1 ·
2020 Blazer 3LT with 6cyl., 14,000 kilometers.

With the A/C off (according to the dash button) the air temperature coming through the vents, when temp is set to LO, is as cold as when the A/C button is lit. No the windshield defroster is not on.

two pics of the center vent. One driving for 20 minutes with A/C off, and the other driving for 20 minutes with A/C on. Doesn’t matter which one is which as the temp is the same.

anyone else notice this? Haven’t taken to the dealer yet.
 

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2022 Blazer RS V6 - Black
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28 Posts
That could be a sign of a shorted thermostat wire. First, check your A/C settings in your controls and make sure there isn't something there that is creating this problem. Maybe an "Auto" setting, or something like that. I definitely would call a dealer and put this in front of them and see what they say if you can't figure it out. They might be able to help you over the phone if it's a settings issue. I haven't experienced this problem, so maybe someone else can chime in if they've seen this and enlighten you better.
 
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