No AC after Battery exchange

[Salvatore]

Changed battery on my ‘09 suburban... Wifey drives to work with it ,calls me 10 min. later to tell me A/C  is blowing hot? 

Haven’t had a chance to look in to it yet. I’m somewhat handy but not a mechanic. I’ll be checking the fuse, the switches.

Any feedback would be appreciated .

thanks in advance

[txab]

A re-calibration may fix you up. Try disconnecting the battery for
a few minutes. Reconnect it.

 

Then turn the key to the on position, but
don't start. Don't touch the HVAC controls. Let actuators do thing their thing.

Air flow may change outlet points during this time. Wait
about 1 minute. Turn key off. Opening and closing the door can
make a difference as the vehicle controls see this as "cycle"
completion. Next start the vehicle and drive it a short distance and see
how it performs.