Knaus electrics

Starclass 695 owner here, with the same issue, which I thought I had cleverly resolved.

I convinced my dealership to fit a 12V line to the fridge, but the problem I have now encountered is that the Schaudt unit turns itself off every time the ignition is switched on, thus turning off the fridge (there is 12V feed, but no 12V control signal).

No biggie, you may think, but pair the van to a car with a smart alternator (and not many without one under 10 years old) and the result is that 10 minutes into your drive, the alternator stops supplying the battery, and when it starts resupplying, you guessed it, the bloody control unit turns itself off, and the fridge stops working.

Apparently, the unit is designed to do exactly that, go figure.

Hyundai are so far as useful as a room heater in the Sahara, and I am starting to think that it might indeed become an intractable problem. If anybody knows of a reliable tech wizard that might be able to reprogram the car to change it's behaviour while towing, please let me know.

Admitedly, on the shortish journeys we have undertaken in the UK (6 hours the longest so far), the freezer seems to have coped with the adventure untouched, but I a, reluctant to travel longer distances with stuff in the fridge.

I always managed overnight ferry journeys, about 8/9 hours allowing for loading/unloading,  without stuff thawing out. When you stop for lunch, turn your gas on and give the fridge a boost.