Why is my 2015 chevy equinox fan not working?

The usual reason that Your 2015 Chevrolet Equinox's fan isn't working is because the blower motor isn't working. When You turn on the vents, for hot or cold, does anything at all come out If not, well, it's likely the motor. It can also be the switch or resistor that regulars the fan speed, but in this case, You might get some air. Likewise, there are internal, electronically controlled so called "blend doors" that direct air flow -- if those have become broken or are stuck in position, You may also feel very weak airflow. As always, it can also be a blown fuse. In this case, You'll want to check the blow motor fuse, typically located in the inside fuse panel under the dashboard. This will be a 20-30 amp one, and very obvious if it's blown.