Insert a 1/4" straight blade screwdriver between the side of the pliers and the blower wheel hub.

You want the screwdriver blade to be as close to the motor shaft as possible.

Rotate the screwdriver to apply a prying force to the blower wheel hub and move it upwards on the shaft.

The frame of the blower assembly is not strong enough to use a straightforward upward prying motion from the blower wheel side of the assembly. You will likely damage the assembly if you do that.