I have a smokette and have loved using it these past few months. I went to use the probe today for the first time. The reading said HI when I plugged it into the meat. I turned the unit off and on a few times and the probe started working right. I was trying to cook the butt to 180* for sliceable pork. After 10 hours, the last two hours staying at 176* I pulled it out and it fell apart. Then I went to do some salmon bellies without the probe and the digitable probe reading was at 156 and then went to HI. Without it even being plugged in. Any thoughts?