2006 Buick LaCrosse. Interior Dual Zone AC/Heating fan not coming on.

Asked by Nov 16, 2019 at 11:38 AM about the 2006 Buick LaCrosse CXL FWD

Question type: Maintenance & Repair

2006 Buick LaCrosse.
Interior Dual Zone AC/Heating control is the electronic Automatic system.

The interior HVAC fan is not blowing at all. It's a dual zone system so I
assume it has two fans for inside HVAC?. If so....neither fan is coming on. I
have checked the following fuses and relays:
Underhood fuses:
F29 - Fan 1
F32 - Fan 2

Relays:
42 - Fan 1
43- Fan 3
46 - Fan 2

The HVAC control center powers up and seems to work fine but just no air
blowing from either fan. Do you guys think it's a bad HVAC control board (the
inside display that controls your climate)? Any other idea? Anyone ever
experienced this issue?
Thanks

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