Ok so I took a couple pictures of my holiday LCM050LC
I think the yellow one is the coarse screw, but I turned it all the way clockwise and it still freezes. I looked into the hole, and the spring goes all the way down when I turn it clockwise
Here is the other side
Do you think I have to take off the front knob and see what's under there. I tried once, but it wasn't coming off easily. Sorry for the bad pics I don't have a good camera.