Hoshizaki KM-260BWH, Service Manual

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5) 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.
6) 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.
7) Reconnect the 2-pin connector. Allow the machine to cycle into the freeze cycle. In
the fi rst 5 minutes of the freeze cycle, activate the bin control actuator (press the
actuator in). The “POWER OK” LED should fl ash and the machine should turn off. If
not, replace the control board.
6. SWITCHES
Two different control switches are used for operation. They are located on the right side
of the control box which becomes accessible when the front louver is removed. The
upper is the control switch, and the lower is the service switch.
[a] CONTROL SWITCH
This switch is used to place the machine into one of three modes: “OFF” (center
position), “ICE” (upper position), and “SERVICE” (lower position).
[b] SERVICE SWITCH
When the control switch is in the “SERVICE” position, the control switch supplies power
to the service switch and the machine is in service mode. The service switch has three
positions: “DRAIN”, “CIRCULATE”, and “WASH”. See the information below for details
of each function.
Note: 1. When the service switch is activated, power is supplied to the water pump in
all three positions.
2. When the control switch is in the “OFF” position or in the “ICE” position, the
service switch has no power and can be left in any position.
a) DRAIN
This machine utilizes a pump-out drain system. When the service switch is active and
placed in the “DRAIN” position, power is supplied to the pump and drain valve.