Hi
I have a Howdens HJA610 oven and grill (i think a beko product)which trips the mains on the house circuit board after the oven has been on a while. If i reset the switch, the oven continues to heat up, but as soon as i turn it down to when the light on the temp gauge goes of, This happens at about 80 degrees.
I think it may be the oven cooling thermostate but not sure if it could be anything else. Thought i would post as someone may know of this as a common fault on ovens.