Try 12v & 240v cables separately plugged in as the 240v plugged in overrides 12v plugged in. At least on my Waeco. It's probably the same set-up for the Engel.
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Procrastination, mankind's greatest labour saving device!
50L custom fuel rack 6x20W 100/20mppt 4x26Ah gel 28L super insulated fridge TPMS 3 ARB compressors heatsink fan cooled 4L tank aftercooler Air/water OCD cleaning 4 stage car acoustic insulation.
Good news on the Engel side - shook it up and rolled it about some.
Suspected a bubble or drainage out of a critical pump or wHatever -
wonder of wonders - going now!!!
Big frige - I'm guessing at a failed Temp sensing device - I can see where
it is behind a grid - but treslikety leaves me cold so I'm going to
call the man Monday.
Bet you 2-bob that he finds that a motherboard or some other major
component is kaput1 We'll see.