OK, so this is a cheap and cheerful Chinese absorption freezer.
http://conergas.net/En/ProductView.asp?ID=408
Advice seems to be invert for a while. See these:
http://www.refrigeration-engineer.com/forums/showthread.php?5725-Small-domestic-absorption-fridge
http://caravanchannel.proboards.com/thread/4306/fridge-working-turn-upside
- Just do a Google search for "absorption fridge not freezing"
Acp, August 2017