My new-to-me 2018 Ventana has same problem with the dash floor fan not operating. Thermostat is set correctly and operates all other fans in front of coach. Floor fan does not respond in LOW; MED; or HIGH. Have not located a separate fuse for it inside or outside coach. Access to fan and vent distribution box is behind dash drawers. Not easy to get to.
It acts like it's not getting power. All other DC voltage is fine in coach. Is there some way to check voltage to the fan switch or the fan itself?
Thanks for thoughts.