First let me say a friend has this a loves it. My first time using it I got an error message of PP and sometimes LL but when calling the company no one knew what the codes meant. They sent me another probe at no charge. I used it one time without problems but ever since then the same error comes up. I will purchase another, I have let the time between orders lapse, and see if the problem is the unit itself. I want to love this as much as my friend does