This happened on mine, too. Freaked me out! So after that hatch, I took the assembly apart, used a dremel tool to shorten the post thing and put the thermometer up higher.
I am not recommending you do this, but me being me (which means I tinker with things) I did.
IF you do this, I...
Wrote this a year or so ago... it made people laugh ;)
Dear Idiot Chicken –
I steal all the eggs. Those things you insist on sitting on and guarding with your life? Rocks. Seriously. I pulled them out of the garden and threw them under the water spout to keep the erosion down. They will not...