So I live on a farm, and have opted to live in a camper trailer behind the barn. All I know is that it’s branded Terry by the door. For a few weeks the furnace has been squealing and grinding something fierce no matter how much WD-40 I put on it. I came home from work this evening and the furnace would not kick on. I went out and the motor had a red and white button I never seen before pop out, so I pushed it back in and the furnace turned on. After it heated up, it turned off... when I noticed it wasn’t turning on again, I went back out to see the button popped again. I pushed it in, then turned the thermostat on high and it will absolutely not turn on. Here is a photo of the motor and the black box is where the button was popped... any idea what’s going on with this and how to even temporarily fix it?