Over time vibrations from a fan motor can loosen a plug from an older outlet so check this first.
How to fix floor fan motor.
This repair turned out much easier than i expected.
For fans like this if they don t hum or get warm the failure tends to be the switch the power cord or a blown thermal fuse in the motor.
If you still can t make your floor fan work replace the motor.
It sounds simple but your first step should be to make sure the cord is securely plugged in.
On most fans there will be a plastic vent that allows heat and air to escape from the motor.
If the motor hums but doesn t run and if it s hard to turn its because the bearings are seized.
Clearing the motor of obstructions may help return your floor fan to its normal power.
There will be screws on the back holding this case in place.
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If the belt is damaged contact the manufacturer for a replacement.
Flip your fan around and find the screws in the back.
If cleaning your motor doesn t help look at the fan belt.