It seems that the “Oven on too long” doesn’t go by actual minutes in use, but rather how many hour-long blocks it touches?
Test:
– turn on oven 10 minutes before the top of the hour (say 5:50pm)
– turn off 10 minutes AFTER the top of the hour (say 6:10pm)
– warning generated because it was on during 2 consecutive 1-hour blocks (e.g. the 5-6pm block and the 6-7pm block)
I can’t attest to the exact number of minutes that triggers this behavior, but the oven is ALWAYS OFF when I check, and family members confirm that the oven was on much shorter than 2 hours.
This alarm is USELESS this way – and a legal liability because it’s wrong, and people will ignore it.