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2. Mechanical Bin Control Check and Cleaning: Auxiliary Code U-1 and Later
a) Mechanical Bin Control Check
To check the mechanical bin control switch, follow the steps below.
) Turn off the power supply.
) Remove the front panel, then move the control switch to the "OFF" position.
3) Remove the control box cover, then clear any ice away from the mechanical bin control.
4) Disconnect the red connector from the control board RED K4 connector.
5) Check for continuity across the wires of the red connector. See Fig. . When the
actuator paddle is not engaged, the mechanical bin control switch is closed. If open,
check that the white harness connector is secured to the mechanical bin control switch
connector and that the actuator paddle is not sticking. Clean if necessary. See "IV.
C..b) Mechanical Bin Control Cleaning." See Fig. . If the mechanical bin control
switch still reads open, replace the mechanical bin control.
6) Press the actuator paddle, check for continuity across the wires of the red connector.
When the actuator paddle is engaged, the mechanical bin control switch is open. If
closed, check that the actuator paddle is not restricted. Clean if necessary. See "IV.
C..b) Mechanical Bin Control Cleaning." If the mechanical bin control switch still reads
closed, replace the mechanical bin control.
7) Reconnect the red connector, then move the control switch to the "ICE" position. Turn
on the power supply.
8) Check that the green "BC CLOSED" LED on the control board is on.
9) Allow the unit to cycle on. Following the chart below, press and hold the actuator
paddle. The yellow "BC OPEN" LED should be on and the unit should shut
down according to the chart below. If it does not, replace the control board. See
"V.P. Removal and Replacement of Control Board."
Cycle at
Mechanical Bin
Control Activation
Shutdown
Fill Cycle 5 seconds after activation.
Harvest Cycle At the end of the harvest cycle, or up to 5 seconds into the freeze cycle if activated
at the end of the harvest cycle.
Freeze Cycle 5 seconds after activation if activated at least 5 seconds before the 5-minute short
cycle protection timer expires. Otherwise, at the end of the next harvest cycle.