Well actually,

Electricity is a form of energy which is converted to other forms of energy when it is used to perform a task, and when this conversion occurs heat is always produced to a greater or lesser degree. There is also some heat produced in the wiring connected to the electrical device.

For example electrical energy is converted to:-

- light energy (electric lamp) plus heat

- mechanical energy (electric motor) plus heat

- heat or thermal energy (electric heater) plus infra red radiation

A convenient measurement of the heat produced by electric current flow is Watts.

If a fault develops, the current (and heat energy) can increase to the extent that either the appliance burns out, the connecting wiring overheats and melts the plastic insulation or the plug and socket may burn out. This is where the fuse comes in, designed to blow at its designated amp rating.

tkamiya stated,
Simply putting a higher rated fuse, as stated by tkamiya, will only cause more heat and wont fix your problem.

You need to find out why you have a high amp draw, as arthur has stated either the bearings have failed or as i stated the motor has high internal resistance.