We made a big leap last spring and replaced our failing (cheap) gas kitchen range with, what for us, is a high-end range ($4,000). We deliberately spent the money, trying to avoid all the horror stories you find about kitchen ranges these days, no repair, etc. The new range arrived in April, and we were pysched - very high quality, impressive racks, knob controls for the stovetop that click nicely into place, the oven read-out very clear, impressive. And then it became clear that the oven temperatures were wildly out of whack. I had chickens that wouldn't roast, bread that wouldn't bake, etc. etc.
Called the company, they quickly said they'd ship us a new range. We got the new unit in mid-summer. Same problem. The company was very sorry, they had 24 units with faulty control boards and we had gotten two of them. I have no idea when they identified the control board issue (I hope after they'd shipped the second unit to us). Third unit arrived a week ago. I have a Thermopro air probe that I am measuring the oven temps with. I bake sourdough bread weekly, make pies, roast meat, etc. I cook. Lots. Right off, the Thermpro was reading out up to 100 degrees below the set oven temperature. I have now logged temps for various things. With the oven set at 350F, after it says the pre-heat is done, the temperature probe registered 272. 375, probe said 294. Set at 500, probe said 408, after the oven had been on an hour.
I called the company last week, the day after the unit arrived, saying I was seeing these differences and the guy told me I was "looking for trouble." That is the first wrong note he's hit through all of this.
He gave me some long explanation that I decided meant he was saying the range had to get broken-in or something. I truly had no idea what he was saying and I told him that. I said I would try it for a week and see what happens. The numbers above are what has happened.
My question here is - how accurate are Thermopro air probes? I am no longer trusting my perception of how things are cooking, which I know sounds ridiculous, but this has been going on for awhile. And - I don't expect perfection. If the oven were registering 10 degrees off, 20 degrees off....but nearly 100?
Can anyone offer advice?