Hi folks. I've had an ET 732 for a couple of years now and now the meat probe is registering HHH so I'm guessing that it's had it's day. I've also bought a new Mav a month ago and checked it in there and the same happen. It looks fine though, no bad connections or frayed wires, just wondering if it might have anything to do with the way I clean them. I've always used a sponge with a green pad on the back with washing up liquid, I do use the green pad to get the worst off. Is the probe itself sensitive or is it just a piece of alloy conducting the temp? Never thought about it before until I had this happened, you know how gunky the probes can get after an 18 hour smoke. I've just bought replacements and don't wanna make the same mistake again, if it is a mistake. Any help apprieciated.