I have a 2013 F-250 Super Duty 6.2L.
Pretty sure it's the blower motor speed control (19E624).
Please tell me there is a way to take this damn thing out WITHOUT taking the dash off..........!!!!!!!

 

Nope, The speed controller is located on the back side of the HVAC box. The HVAC box has to be removed to replace the speed controller. I would also replace the evaporator core while I had it out since the AC system has to be opened up to removed the HVAC box.

 

Thank you, Larry.
This should be fun.
sanbar406