It looks like a defrost cycle but the temp rise seems extreame...
The sensor is on the inside of the door, aproximatly centered. No wires or anything go through the door seal. I am not seeing exessive frost or soft food but still, now I can see the temp swing I am concirned.
BTW I have two sensors in different freezers... Swapped them over to make sure it wasnt a sensor issue.
I have seen other posts suggesting a defrost sensor issue, for different models, but dont wamt to go opening things up if this isnt a fault or could be something else. No alarms