... .air pump,pre-cooling optional. D.cone counting. E.trouble-shot. Ice cream machine/maker ,CE,CB,ROHS Item No : Bk3168SDProduct ... ,B. micro computerized controlling system,C.counter system,D.trouble-shot.A: soft ice cream machine/maker( hard ice cream machine ... start the machine ,you can read the shift.)9.Trouble-shot:(low mix alert,belt skid alert,refrigeration trouble alert,switch ...