They suffer from some of the same problem your likely modern fridge does, and then kick it up two notches.

In the name of "safety", they have made design decisions such as integrating fuses directly into the very large and expensive control boards and making them non-replacable. Just in case this wasn't enough, they also tend to blow an OTP so that in the event that you have the know how to replace the fuses anyways, nothing will work. Naturally you also cannot just swap in a replacement board, as it needs to go through the same pairing process to the ECU as things like the car doors, which in most cases requires an active certificate/license on the ecu programmer that only dealerships/oem have.