Without hijacking the original post, we soon might get to see the difference between Engel and the company referred to in this post regarding warranty issues.
I routinely run my 40 litre combo unit every month for a day or so, started it up Thursday to give it a run, usually start it on 240, let it reach temperature setting (in this case -8) add items to both compartments either frozen or chilled as required to replicate normal operations.
Once system cycles normally, I usually run it from my baintech powertop 100 amp/hr and charge the battery with my solar blankets, to test whole setup on a regular basis.
Was out most of Friday after setting up battery and solar panels, no problem with solar reg showing input at up to 13 amp, when I came home, was surprised to see battery was struggling to get past 13 volts, normally would reach float condition after a couple of hours, initially suspected battery, but after watching fridge realised it is cycling every 3 to 4 minutes which is a huge power drain on battery.
Put the fridge back on 240 and looked at it overnight, the temp is still reaching -8 on freezer side but is continuing to cycle on and off every 3 to 4 minutes, the ambient temp overnight was 24C and with the fridge under the house in a well ventilated area, it would normally run 5 to 6 minutes out of 20 minute period maximum during this time.
Everything sounds normal, compressor runs, internal fan runs, temperature display and on/off switch work OK, behaviour is consistent to a normal domestic fridge or aircon that is low on gas.
This unit is just over 2 years old (but is covered by a 3 year warranty) and is in pristine condition due to my having continuing eye operations and unable to drive at highway speeds and travel this year, I know the contact details for the local Engel rep and will give him a call tomorrow morning, so will see what the feedback is, as said, the unit is run on a regular basis and is in perfect condition regarding any obvious damage and has run perfectly up to this weekend.
Watch this space!