Blower fan not working correctly

The motor is DC and is turning in the correct rotation , if it was not you would not have blowing out on feet. You have a blend air problem.

had this problem which took a couple different directions. First was very simple...the control knob was turning on the shaft,, it had rounded off. Put some glue on it and worked for a year until problem like you described arose again. Replaced all components like you did but had intermittent blowing. Replaced blower again which solved problem...for now anyway...defective NEW blower.

you need to replace the blower motor and the blower motor resistor to correct you problem

Sounds like the blower resistor has gone bad. It is located under the dash near the blower motor on the passenger side.

here's a how to that may help
http://www.fixya.com/cars/r6571076-blower_motor_not_work

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if you do not hear the blower motor blowing it is possible. If it moves air but isn't cold the it would be in the compressor but if it doesn't move air at all id be inclined to say that yes it is the blower motor.

probably the blower motor.

blower motor resistor is burnt out on those speeds

Blower motor resistor is most common ($20-$70) it controls the blower motor fan and speeds or fan relay fuse (usually under the hood) If it's not either then the blower itself is bad. You can pull the motor and apply 12volts to it to test, if it spins then the resistor.

check for 12 V and ground at blower motor with the fan switch at high if o.k replace motorand if you12V but no ground replace fan switch .good luck

sounds like the relay is turning on sending the power out to the blower motor resistor witch is locate dby the blower motor it is held in the case by two screws check it for power when you turn the switch on and off