Why does fuse # 25 keep blowing out on my Chrysler pacifica 2004

sounds like a blower motor resistor or bad relay. Blower motor resistor is so you don't burn up the blower motor.

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

your blend door motor is stuck or it may need to be replaced. the blend door controls the temp from heat to a/c

check vacum to heater control switch

If the air blows out of all of your other vents then you have either had an actuator go bad which controls which ducts the air flows through, or the shaft that has the "flap" on it has popped loose and no longer moves which will only allow air to go to the vents that are not locked. The easiest way to find out would be to get under the dash and start at the fan and trace air flow til you find the problem.

Under the dash drivers side there are mode motors that control where the air comes from replace bad one or both the bottom one is recirculate. You could take a volt meter and see which one has power when you push button

Check your relays the accessory relay right hand upper corner and the run relay middle left side if they are the same relay switch them and see if that works if not could be the body control module. Realys under hood to the right of the battery

Under the hood just above the battery are the relays and fuses. There is an acc relay swap it out with a like one and see if that fixes it. Otherwise when I looked at the wiring there are 3 fuses a 30 and 2 25 amp fuses check them

REPLACE THE BLOWER MOTOR SPEED CONTROL RESISTOR.

The fuse for the radio/CD/DVD is seperate from the AC/Heat. Open fuse box under hood on right. follow fuse schematic to ac fuse position (note there are two so if not one, then it is the other) use the fuse puller that is in the fuse box, then replace the fuse. Good luck.