Arrgh. Our new Dacor oven was installed at remodel time 3 years ago.
It's been fairly reliable and consistent, however, the temp probe only
worked correctly for about the first year and a half. Then it began
acting up; when inserted into a cold-from-the-fridge meatloaf, for
instance, and the cold dish was placed in the oven, and the probe plug
inserted and set correctly via oven controls, many times the oven
would simply shut itself off after maybe a couple of minutes; other
times, it would go into a wild beep-flashing indicator-beep thing as
if something is Really Wrong; then it would sort of half-shut off,
with an abnormal display on the front panel showing. The cure is
always to simply unplug the probe, restart the bake, and then when the
food is quite warm, reinsert the plug into the oven... at that point
it probes temp correctly and the oven shuts down at temp properly.

It just happened again on another dish. I measured about 85k
resistance on the plug which seems normal for the temp it's measuring.

Any clues out there? I'm imagining perhaps some corrosion/resistance
at the plug female contacts perhaps, which bollixes up the reading and
then perhaps this condition is alleviated as things heat up? Seems
doubtful, as in this instance the oven had been in use a couple of
hours prior, baking bread, so things are well hot in there still.
It's as if it no longer wants to tolerate a probe in cold food.

Is this just a classic case of a bad or failing probe perhaps? I
could believe anything I guess.

This is the same idiotic oven which insists on running its convection
fan all the while, during a delay prior to a timer-controlled bake.
That is, of course, unless you have a probe inserted in the jack
during the delay, in which case the fan doesn't run.

Dacor is no help on this. They have such lousy support that I will
probably go with Wolf or some other brand next time. We have a Dacor
gas stovetop as well, which has had burner igniter issues since it was
6 months old; we work around it most of the time but it is a royal
pain sometimes.

Their answer is always "call your dealer". Yeah, thanks.