... commercial used condensing units.About Design1.Multi-patents yogurt machine:one outlook design patent,three authentic used patents,one ... read the temp from the indicator and check the machine's cooling system is in good condition or not ... ,when you start the machine ,you can read the shift.)9.Trouble-shot:(low mix alert,belt skid alert, ... 3632.1-2 years warranty.3.With extra frozen yogurt machine