Chevy 2007 Silverado-blower motor not working

Question edited for clarity.
Question moved to model category.

Seems to be a known issue.

Blower Wont Shut Off - 1999-2013 Silverado & Sierra 1500

GM-Trucks.com https://www.gm-trucks.com > forums > topic > 11348...
May 9, 2010 - If the blower resistor is shorting prematurely then you most likely need a blower motor due to excess current draw.

Chevrolet Silverado 2007-2013: Why Won't My Blower Work?

ChevroletForum https://www.chevroletforum.com > how-tos > chevrole...
Another common problem will be the blower motor will stick in the ON position and never shut off.

Blower Motor Won't shut off ' GMC Truck Forum

gmfullsize.com https://www.gmfullsize.com > ... > Maintenance
Jan 17, 2011 - While driving today blower motor Kicked out, I turned up the fan speed and it kicked back in. Got to my destination, turned off the key and the ...

Missing: Classic. ‎' Show results with: Classic.

Heater/blower Won't Shut Off - Ask the GM Technician

GM-Trucks.com https://www.gm-trucks.com > forums > topic > 72853-...
Jan 11, 2008 - Cause is a mis-positioned harness from the blower motor assembly to the right I/P fuse block C4 causing harness rub through at right I/P metal ...

Does the blower work on High when connected properly?
Blower resistors can go bad without looking "burnt"....

Chk for power at the blower motor electrical connector. If no voltage, check the blower motor resistor, its within the blower motor vent (this controls power to the blower motor). Also, in theses vehicles water may have damaged the blower motor itself. Inspect the blower motor for proper function.

replace the blowermotor resistor, it is also called a blowermotor control processor its located on heater box next to the heatercore, here a picture of it and a diagram to show you exactly were it is. this will solve your problem,hope this helps you.

You may want to change the blower motor as a precaution.
Do all the fan speeds work?
If not .....change the fan resistor board which is right beside the fan at the same time you change the blower fan motor.

Looks like those trucks had two different fan vendors. Here are the instructions for both:

Removal & Installation Delphi To Remove:

1. Remove the instrument panel sound insulator panel (if equipped).
2. Disconnect the electrical connector from the blower motor.
3. Remove the blower motor insulating cover screws.
4. Remove the blower motor insulating cover.
5. Pull the retaining tab down and rotate blower motor counterclockwise to remove.

To Install:

1. Position the blower motor and turn assembly clockwise until tab locks in place.
2. Install the blower motor insulating cover.
3. Connect the electrical connector to the blower motor.
4. Install the instrument panel sound insulator panel (if equipped).

Visteon

To Remove:

1. Remove the instrument panel sound insulator panel (if equipped).
2. Disconnect the electrical connector from the blower motor.
3. Remove the blower motor screws.
4. Remove the blower motor from the HVAC module.

To Install:

1. Position the blower motor and install mounting screws.
2. Connect the electrical connector to the blower motor.
3. Install the instrument panel sound insulator panel (if equipped).

I had a truck about the same year with the same problem, it was the wiring harness, but id check the resistor and the fan first before replacing anythings,

Treed55508,

Try this solution. I have had the same issue three times. A Chevy tech told me that if it keeps doing it, to replace the blower motor, as it seems to be a chronic problem with the blower having to much resistance and thus burning out the resistors. I suspect that you probably had lost one speed first and then more. It has happened both ways with me, once the entire thing went out at once and then the other times it goes one speed at a time.

http://sparkysanswers.blogspot.com/2008/07/2005-chevrolet-silverado-blower-inop.html

replace the motor it is burned up

replace the blower motor .,....