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blower motor actuator needs to be replaced.
RE-TYPE I would think that the blower motor is bad and the fuse is failing. Causing the entire electrical sys on the truck to fail and shut down. Hope this helps. To see... take out the blower fuse and put in a new one and turn it on. If it still does the same thing it could be bad wiring. hope this helps!
Turn it off until you can have it looked at, the contactor is probably welded shut and you can kill the compressor running it this way.
Reboot your PC, If i wont shut down turn your PC off manually, wait ten seconds, then see if your problems are fixed.
When the blower motor stays on it means there is a short to power, or the relay is sticking. 99.9% of the time the relay sticks. I belive on the 2004 silverados the blower motor relay is internal to the blower motor resistor. Try to find an auxillary blower motor relay and if there isn't one then replace the blower motor resistor.
If the inside fan won't shut off, the blower resistor has failed. It is located behind the glove box.
The blower on a 2002 Nissan Pathfinder won't turn off if the switch is stuck in the on position or the relay is defective. Removing the blower fuse will cause the fan to turn off.
Common causes, blower motor resistor, blower motor, wiring or controls
A malfunctioning blower motor resistor will cause the blower motor not to work. When the resistor is bad the blower motors will not turn on.
It takes a little time for the vacuum to actuate the switch; especially if things are binding or if there is a vacuum loss.
Bad ignition, maybe.
When you beat the blower motor, you are probably shaking the blower resister. The resister is what controls the blower speeds and is probably bad or loose.