No heat!
New Zr1 owner here!
It's finally gotten cold enough here in PA to make me want some heat in the vette. Tried it for the first time since buying the car and all I'm getting is cold air. I've been following the service manual's procedures, and so far I've checked the codes at the head unit and nothing shows. I do have tons of AC, but I don't think it is transitioning from AC to heat when the temp is changed to the warmer side. Could this be the programmer?
Help!
Thanks,
Dave
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