Update: Anova reached out to me and the oven is on its way back to their engineers.
Hi. I’m new here, but not to the APO - I’m on my 3rd one.
The first oven worked fine for about two weeks, then whatever one of the supports for the top element was supposed to be screwed into came loose inside the oven wall, and the top element sagged down to where it could have touched the food on the top rack.
The second oven seemed better-built, but a couple of weeks after receiving it, I was plugging in the food probe while touching one of the racks, and got a small shock. I subsequently measured the potential between the probe tip and oven wall at 32V; for the avoidance of doubt, I confirmed ground wasn’t floating by also measuring to the ground at my electrical panel, and also obtained the same measurement with a second food probe - the one from the first oven.
Anova replaced this oven too, though they messed up the shipping somehow and it took a few weeks to get here. I did ask whether there was some reason they would expect 30+ volts at the food probe, but they didn’t answer, just replaced the oven.
I just unboxed the 3rd oven, and just in the name of crossing i’s and dotting t’s, before running it at all I measured the voltage on the probe tip. It is 33V above ground / oven wall.
At this point I don’t know what to think, nor what to do. Neither I nor several coworkers fairly experienced in electronics design can see why the food probe tip should be tens of volts above ground, and it’s also concerning that it can supply enough current to give a perceptible, even slightly painful, shock. This is not going to kill a horse (or a housecat) but I can certainly see it leading someone to drop something very hot, and that’s not good. And to me, any stray voltage in a cooking appliance seems like a cause for concern.
If the food probe is not supposed to be energized, then I’ve just received two successive ovens directly from Anova that have the same safety defect. If the food probe is supposed to be energized, I’m just not sure what to think.
And there’s the matter of this coming on the heels of replacing the first oven because of a simpler, easier to understand defect that could still have started a fire.
I’ve reached out to Anova again, by phone and email, but I don’t really expect any response other than another offer to supply yet another replacement oven. What should I do?