Just received a new thermometer. It is my first digital wireless thermometer. Played around with it to get some temps in the house and outside on the deck, seemed accurate. So i put both leads in my smoker to see what it read in different locations, lit some coals, direct heat, now the food lead just reads HHH. The smoker lead is working fine. I was testing range of the receiver when it happened, so a flare up could have put it over its limits I suppose. Has this happened to anyone? Is there a way to reset it or do i need a new probe? Directions didn't offer any troubleshooting.