Driver side window won’t go down?

Master switch is a common problem,

My 2015 F150 is still under warranty. Check to see if you are covered. I’m having electrical problems too. Start/Stop system stopped working and the power outlets stay on after the truck is off. Sometimes!

As TCM suggested, if under warranty bring to place of purchase. If not you will probably have to remove the inner door panel to access the switch. While off, check for obstructions within the window mechanism. If it hits a restriction or is binding at a certain point the motor will stop. If all appears good there, try disconnecting the motor and removing it. Apply 12v DC (positive and negative) to the connection at the motor. The motor will run in either direction depending on the polarity connections. Reversing polarity makes the motor run in reverse.

what was the problem? what did you end up doing - i am having a similar problem

any update? mine is doing the EXACT same thing. 2015 F150 as well.

What worked for me was holding the switch up for 10 to 15 seconds