Abstract: A protective device of an auger type ice making machine capable of coping with occurrence of a problem with a simple configuration. A protective device comprises a delay timer which starts counting simultaneously with the start of an auger motor. A compressor is started by the count up of the delay timer so as to start the ice making operation. At the same time, the energization to a shock relay is started, and a current-voltage converter contained therein detects a change in the current from the auger motor and converts into a voltage change followed by outputting. If no overload is applied on the auger motor and if the output voltage from the current-voltage converter is not an overload output voltage according to the overload current of the motor, steady operation continues without change. In contrast, if the output voltage from the current-voltage converter is an overload output voltage, the operation of the auger motor and compressor is stopped.

Abstract: A pair of claw portions that may be elastically deformed are formed at both ends of a top surface of a base body of a detecting plate base. A circular arc portion and a switch holding portion are formed between the pair of claw portions. A recessed portion is formed on the lower surface side of the base body by the circular arc portion so that a detecting plate, which is mounted on the detecting plate base, may be rotated. A lead switch is attachably and detachably mounted on the switch holding portion. An apparatus for detecting an amount of stored ice is attachably and detachably fitted from the interior of the ice storing chamber to an opening portion formed in the top plate of the ice storing chamber by the claw portions of the detecting plate base.

Abstract: An ice making machine in which upon starting of an ice making operation, a water level detecting switch starts measurement, and a water-supply-stop time T1 is compared with a reference time T2. When the water-supply-stop time T1 is not longer than the reference time T2, it is determined that the ice making machine is an excessive-ice-making state, and control is performed so as to reduce the RPM of a fan motor for cooling a condenser.

Abstract: Disclosed is an ice making machine in which upon starting of ice making operation, a water level detecting switch starts measurement, a water-supply-stop time T1 being compared with a reference time T2. When the water-supply-stop time T1 is not longer than the reference time T2, it is determined that the ice making machine is in an excessive-ice-making state, and control is performed so as to reduce the RPM of a fan motor for cooling a condenser.