AC and blower fan issues - 2014 Tahoe

ppvfan

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Ontario, Canada
My 2014 Tahoe PPV is finally roadworthy. It cost a bit more than I expected but there you go.

Unfortunately now the AC and blower fan are acting up.

The fan seems to do nothing for the first half of the speed control then goes up to full blast just fine.

However, air may or may not come out the selected vents and certainly not at full speed. Only the driver's side of the windshield was getting enough air when set to defrost last night.

And, the AC now gives me 2 or 3 flashes and will not turn on.

I tried the AC and recirc button tip and the battery disconnect and wait tip but neither worked. All other conditions were fine for using the AC, the freon is the only thing I haven't checked.

Could the blower motor control module be responsible for all of this? Any other ideas about where to look? Thanks.
 

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