Recently [nibbler]’s Evakool 55L vehicle fridge started to act strangely, reporting crazy temperature errors and had no chance of regulating. The determination was that the NTC thermistor was toast, and rather than trying to extricate and replace this part, it was a lot easier to add a new one at a suitable location
This is a companion discussion topic for the original entry at https://hackaday.com/2024/03/14/new-brains-save-12-v-fridge-from-the-scrap-heap/