Window reads F6.microwave will not run

Read the instructions that came with it!
Set the clock.

Set time on the clock good luck

Hello. Try this. Push the clock button. Then enter the time in hours and minutes, THEN push the clock button a second time. Joe

Please give my answer 4 thumbs up since it is on target and also free to you. Thanks. Joe

interlock switch

You have a faulty keypad. You could probably special order this part from a local appliance parts supply store for 50-60$ or purchase a new microwave.

I left the unit unplugged over night, plugged it back in the next day and still had the same problem.

F6 means a problem in the control circuit board.
Try unplugging the microwave with the door open, then plug it back.
Try the solution that you find here, if it does not work the panel must be replaced.

i fixed by unplugging the microwave with the door open. I plugged it back in and the F6 was gone. I was then able to set the clock and turn the light on/off . When I closed the microwave door, the F6 came back on and the microwave was making a humming noise. I slapped the side of the microwave near the keypad, and the F6 cleared from the readout and the humming stopped. The microwave is working fine now. Don't know why, except maybe slap on the side reset a relay or something. Anyway, I will never by a Sears Kenmore appliance for the rest of my life. The door rattles when you open a close it (like a part inside the door is broken) and this is the second time a fault code has appeared during use. I had GE Profile appliances at my last house, which are more $$ initial cost, but who wants to screw around buying a new microwave every four or five years. I'll happily spend a couple hundred more for the peace of mind and knowing that it will work during Thanksgiving dinner with the family over.

The magnatron is shorting, overloading the high voltage transformer. From the picture this looks like an older unit and is probably not worth a magnatron replacement.

control panel is hung up - replace panel and keypad.