Is the unit a Norcold or Dometic , any history on possible recalls?
Operation the same on gas and electric ?
How long has the fridge been on for ? I figure 48 hrs to come down to temp after start up.
Checked temps with a thermometer ?
Sorry for all the questions , but more info = better answers.
EDIT: As Ed says these are an expensive unit and many replace with residential fridges if , propane operation is not require.