I am having the same problem now. The first time I used it everything was working oook lost signal a few times if I did not have it near a window. I just thought it was the old thick walls in my house. Then the second time I used it the unit would lock up stay on one temp and not transmit or turn off. The only way to get it to turn off is to remove the batteries. The big problem now is it will not display or transmit the temps. I called Maverick a few times with no response, not sure what to do.
Can anyone recommend another unit with duel temps. I am thinking of building one myself but I would cost a lot but I could control fans also :-)