Technical information

12/01/02

4. BIN CONTROL:

Checkout for the bin control will vary depending on the

model and control that is used.

a) THERMOSTATIC BIN CONTROL: The thermostatic

bulb is mounted in the ice drop area to sense the ice

buildup. To adjust the bin control, hold ice against the

bulb while the unit is operating. You will find it easier to

place the control switch to the wash position to check

the bin control operation. It is easy to hear the pump

motor stop when the bin control opens. The unit should

shut

down within a 10 second window when the

control is adjusted properly. If this does not occur,

adjust the thermostatic control by turning the screw-

driver slot. Adjusting towards warmer will allow the

unit to shut down quicker. This adjustment should be

checked at installation, when diagnosing a bin control

problem, or if a replacement bin control is installed.

KM 150 / 250 / 280 / 500 / 630 /900 units have a bin

control mounted in the ice drop zone area. KM-1300M /

S and larger units have a drop down bracket that must

be dropped down, secured, and plugged in at installa-

tion. The ice must contact the bulb to operate the

bin control. Some bin applications require an exten-

sion bracket or relocation of the bulb mounting to allow

for proper shut down. Check this positioning if the

control is adjusted properly and ice continues to back

up into the evaporator section. Assure that the exten-

sion bracket is installed.

The symptoms of a bad thermostatic control are:

STUCK CLOSED: The unit continues to operate when the

bin is full. This allows ice to back up in the evaporator

compartment and generally causes a freeze up condition.

This will also occur if the bin control is adjusted too cold or

fully “CW”. Check the adjustment and bulb location before

you diagnose a stuck bin control.

STUCK OPEN: The unit will not start in the ice position. An

easy method to check for an open bin control is to flip the

control switch to WASH. If the pump starts, the bin control

is closed.

b) MECHANICAL BIN CONTROL: The mechanical bin

control uses a moving actuator paddle to open and

12/20/03

2/20/03