Service Manual

33
C. Bin Control Check and Cleaning
This unit uses a BC with a lever-actuated proximity switch to control the ice level in the
storage bin. No adjustment is required. BC is connected to CB K4 (red) connector. When
callingforice,BCproximityswitchisclosed(green"BCCLOSED"LEDon).WhenBC
actuatorpaddleisengaged,BCproximityswitchisopen(yellow"BCOPEN"LEDon)
and CB shuts down the unit according to the chart below.
Cycle at
Mechanical Bin
Control Activation
Shutdown
Fill Cycle 15 seconds after activation.
Harvest Cycle At the end of the harvest cycle, or up to 15 seconds into the freeze cycle if activated
at the end of the harvest cycle.
Freeze Cycle 15 seconds after activation if activated at least 15 seconds before the 5-minute short
cycle protection timer terminates. Otherwise, at the end of the next harvest cycle.
WARNING
CHOKING HAZARD: Ensure all components, fasteners, and thumbscrews are
securely in place after the unit is serviced. Make sure that none have fallen into
the storage bin.
1. Bin Control Check
To check BC, follow the steps below.
1) Turn off the power supply and clear any ice away from BC.
2)Removethefrontandtoppanels,thenmovethecontrolswitchtothe"OFF"position.
3) Remove the control box cover.
4) Disconnect the BC connector from CB K4 (red) connector.
5) If BC is accessible from the dispenser unit/storage bin, continue to step 6. If BC is not
accessible from the dispenser unit/storage bin, remove BC insulation. Remove BC
cover thumbscrews, then lift BC assembly out of the icemaker. See Fig. 1.
6) Check for continuity across the wires of the BC connector. When the actuator paddle
is not engaged, BC switch is closed. If open, check that BC wire harness is properly
connected to BC cable and that the actuator paddle is not sticking. Clean if necessary.
See"IV.C.2.BinControlCleaning."IfBCswitchstillreadsopen,replaceBC.
7) Press the actuator paddle, check for continuity across the wires of the BC connector.
When the actuator paddle is engaged, BC switch is open. If closed, check that the
actuatorpaddleisnotrestricted.Cleanifnecessary.See"IV.C.2.BinControlCleaning."
If BC switch still reads closed, replace BC.
8) Reconnect the BC connector to CB K4 (red) connector, then move the control switch to
the"ICE"position.
9) Turn on the power supply.
10)CheckthatCBgreen"BCCLOSED"LEDturnson.
11)Allowtheunittocycleon.Pressandholdtheactuatorpaddle.CByellow"BCOPEN"
LED turns on and the unit shuts down according to the chart above. If not, replace CB.
12) Turn off the power supply.