Hi,Welcome to Just Answer, My name isXXXXX will be helping you with your appliance issue today.
You need to replace the thermal fuse in this, this is located on the blower assembly, you can order this @ http://www.repairclinic.com/PartDetail/Thermal-Fuse/2986?modelNumber=110.85088400 and if you click the blue link it will take you to the parts to order it and it has a video on how to replace it, this is very common on these, replace it should be up and running again in no time, thanks and well wishes, Bryan
Got the door switch out and it has three poles. How do I check it for continuity?
Okay the switch is bad, you need to replace it, it should have continuity one way or the other so must be the side that runs to the motor that's bad the two prongs with no continuity good job, you can order this @ http://www.repairclinic.com/PartDetail/Door-Switch-Assembly/905837?modelNumber=110.85088400 if you wish Hope this helps thanks, Bryan