I have a 2004 chevy surban that keeps blowing the ignition fuse what can cause this

Remove the fuses to the circuits that blow. Then one at a time, install a fuse, turn any component on and see if it blows the fuse. Have you had an accident recently ? If so, maybe a wiring harness has been damaged and causing your problem.

There are two fuses for the fuel pump relay. One fuse is load side of relay, that fuse also sends voltage to load side of asd relay, the asd relay sends voltage to several systems, two of which are the fuel injectors and ignition coil. I'm not telling you to replace, anything, but, you need to do some testing.
The other fuse goes to control side of relay, smaller amp fuse. I don't know the amp rating of the fuse that keeps blowing.
See that fuse, it supplies voltage to load side of fuel pump relay and also to asd relay.

You have a short to ground on that circuit , find a wiring diagram an see what all is on that fuse . So far I see the ignition switch an starter relay ! Does it blow right away when you replace it or do you have to turn on the ignition switch ?

The fuse goes to the auto shutdown relay from there it goes to two powertrain control modules. Test the relay or replace or there is a short in the system

It seems that your blower motor is taking more load than rated and it blows the fuse.

What is on the circuit that blows the fuse?

Without a wiring diagram or schematic your lost.

the windings in the coil on the compressor clutch is shorted,you need to remove the drive pulley where the belts hook on the compressor,then unbolt the 4 bolts holding the coil assy

Pasenger side under the glove box.
replase resistor aswell.
Vitally

IF ITS ONLY THAT ONE DOOR THAT BLOWS THE FUSE TAKE OFF THE DOOR PANEL AND LIKE YOU SAID CK TO MAKE SURE NOTHING IS RESTRICTING MOVEMENT IF EVERYTHING A-OK REPLACE THE MOTOR SOUNDS LIKE ITS HAD ENOUGH AND IS PULLING TO MANY AMPS THATS WHY YOU KEEP BLOWING FUSES GOOD LUCK HOPE THIS HELPS

you have a short somewhere. if it is the brake switch fuse it is probably the brake switch which should somwhere on the pedal arm or actuated by the pedal arm. also check your bulbs if you haven't already. hope this helps.