Bin Control Check - Hoshizaki KM-470AJ Service Manual

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D. Bin Control Check
BC shuts down the icemaker within 10 sec. when ice contacts the thermostatic bulb,
regardless of the cycle at activation.
When the ambient temperature is below 7°C, BC opens and shuts down the
appliance even if the ice storage bin is empty. When BC is set in the prohibited
range, the appliance operates continuously even if the ice storage bin is filled with
ice. Setting in the prohibited range may result in severe damage to the appliance.
BC is factory set, and generally no adjustment is required. However, adjustment may be
needed in some conditions, particularly at higher altitude locations.
Note: A jumper (485134Z01) must be placed on CB red K4 connector. Otherwise,
CB yellow "BC OPEN" LED is on and appliance will not start.
To check BC, follow the steps below.
1) Turn off the power supply.
2) Remove the front panel, then move the control switch to the "OFF" position.
3) Remove the control box cover and base cover, then clear any ice away from BC bulb.
4) Disconnect BC wires from BC switch.
5) Hold your hand around the bulb to warm it up.
6) Check for continuity across BC switch. If closed, continue to step 6. If open, adjust or
replace BC.
7) With the multimeter test leads still in place, hold ice on BC bulb to lower the
temperature. Within 10 sec., BC switch should open. If it remains closed, adjust or
replace BC.
Legend: BC–thermostatic bin control
NOTICE
17

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