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2. Sequence Flow Chart
• WV time: 6 min. or the length of harvest minus 0 or
50 sec. (S4 dip switch 7), whichever is shorter. DO
NOT ADJUST S4 dip switch 7 on this model.
• Maximum harvest time: 0 min.
F/S check
1 to 3-min. timer in control
(S4 dip switch 1 & )
Legend:
BC–bin control
Comp–compressor
FM–fan motor
FMR–fan motor-remote
F/S–oat switch
HGV–hot gas valve
LLV–liquid line valve
PM–pump motor
WV–inlet water valve
Components Energized when the Control Switch is in the "WASH" Position
The "WASH" position on the control switch is used when cleaning and sanitizing the unit. When in the "WASH" position, power is
supplied to the pump motor. With the cleaning valve closed, the cleaner and sanitizer ow over the outside of the evaporator plate
assembly. With the cleaning valve open, the cleaner and sanitizer ow over both the outside and the inside of the evaporator plate
assembly.
Note: Close the cleaning valve after cleaning and sanitizing are complete, otherwise the unit will not restart when the control
switch is placed in the "ICE" position.
"G" Control Board Sequence Flow Chart
1. 1-Minute
Fill Cycle
Cycle Steps
2. Harvest Cycle
Thermistor
in control
3. Freeze Cycle
• Minimum freeze time: 5 min.
• Maximum freeze time: freeze timer setting
(S4 dip switch 9 & 10)
F/S in control
4. Pump-Out Cycle
• Factory set for every
10th cycle (S4 dip
switch 5 & 6)
• Pump motor stops
for sec., then
reverses for 10/0
sec. (S4 dip switch
3 & 4)
WV energized
F/S open
WV continues
Comp energized
FMR energized
HGV energized
Thermistor temperature
reaches 48°F (9°C)
(3.9 kΩ or less).
Harvest timer starts.
F/S open
Comp continues
FMR continues
PM continues
FMS energized
LLV energized
HGV de-energized
F/S closed
Comp continues
FMR continues
HGV energized
PM de-energizes for sec.,
then reverses for 10/0 sec.
FM de-energized
LLV de-energized
F/S check
Initial startup
begins here
after 5-sec.
delay
If F/S is open, compressor stops and cycle returns to 1-Minute Fill Cycle
5-min. timer in
control
F/S closed
F/S open or freeze
timer expires
NOTE: Green "BC CLOSED" LED on continuously
when the K4 jumper is in place.
0 or 50 sec.
PM energized
WV de-energized
Harvest Pump
Timer
1. Bin Full
Within 10 sec.
after ice contacts
thermostatic bulb,
unit shuts down.
Shutdown
and Restart
BC Operation
Ice contacts
thermostatic bulb
2. Icemaker Off
All components
de-energized.
3. Ice Level Lowered
No ice touching
thermostatic bulb.
Icemaker starts at
"1. 1-Minute Fill Cycle."
BC closed
BC-open
All components
de-energized
To 1 above
KM-1301SAH/3, KM-1301SWH/3, and KM-1301SRH/3