Bin Control Check; Bin Control Cleaning - Hoshizaki KM-230BAJ Service Manual

machine to complete the freeze cycle and the following harvest cycle before shutting
down the machine.
When the bin control is activated, the "POWER OK" LED flashes. There is a delay
before the shutdown sequence begins. The delay varies depending on the cycle the
icemaker is in at the time of activation. For details, see the table below.
Cycle at Bin Control Activation Delay Before Shutdown Sequence Begins
Fill Cycle
Harvest Cycle
Freeze Cycle

1. Bin Control Check

1) Remove the louver. Move the control switch to the "OFF" position, then unplug the
appliance. Access the control box.
2) Clear any ice away from the bin control.
3) Disconnect the bin control at the 2-pin connector attached to the black wires coming
from the K1 connector (pins 4 & 5) on the control board.
4) Check for continuity across the bin control leads. When calling for ice, the bin control
proximity switch should be closed. If open, replace the bin control. Activate the bin
control actuator (press the actuator in), check for continuity across the bin control
leads. The bin control proximity switch should be open. If closed, replace the bin
control.
5) Reconnect the 2-pin connector. Plug in the appliance, then move the control switch
to the "ICE" position. Allow the machine to cycle into the freeze cycle. In the first 5
minutes of the freeze cycle, activate the bin control actuator (press the actuator in).
The "POWER OK" LED should flash and the machine should turn off. If not, replace
the control board.

2. Bin Control Cleaning

Scale may build up on MBC. Scale can cause the actuator paddle and magnet to stick.
In this case, MBC should be cleaned.
15 seconds
15 seconds after the next freeze cycle starts
15 seconds if the bin control is activated between the
beginning of freeze and termination of the 5-minute short
cycle protection timer (timer starts when the thermistor
temperature drops to 36°F (2°C) (5.5 kΩ or more)). After this
time, the unit will not shut down until the next harvest cycle is
complete.
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