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8. Freeze Timer (S4 dip switch 9 & 10)
Adjust to proper specifi cation, or the icemaker may not operate correctly.
The freeze timer setting determines the maximum allowed freeze time to prevent
possible freeze-up issues. Upon termination of the freeze timer, the control board initiates
the harvest cycle or pump-out cycle. After 2 consecutive freeze timer terminations, the
control board shuts down the icemaker. In this case, see "II.H.3. Low Ice Production" for
possible solutions. The freeze timer is factory set and no adjustment is required.
9. Float Switch Control Selector (S5 dip switch 1)
Do not adjust. This must be left in the factory default position or the icemaker will
not operate correctly. The KM-590DJ uses a single fl oat switch with no refi lls.
Float switch selector used in applications where refi ll is required in the freeze cycle.
Refi lls set by S5 dip switch 2 and 3. Note: In single fl oat switch with upper fl oat operation
only 1 refi ll allowed.
• Single fl oat switch application:
• With S5 dip switch 1 in the "OFF" position, control board monitors the lower fl oat switch
for refi ll operation.
• With S5 dip switch 1 in the "ON" position, the control board monitors the upper fl oat
switch for refi ll operation. In this case no upper fl oat switch exists, therefore the control
board reads an open upper fl oat switch immediately when the freeze cycle starts and
initiates a refi ll. Since there is no upper fl oat switch to close and terminate the refi ll, the
refi ll lasts for a maximum of 1-min. During the 1-min. refi ll, LED 4 is on.
• Double fl oat switch application: Float switch control selector determines which fl oat switch
(upper or lower) the control board monitors for refi ll control during the freeze cycle.
S5 Dip Switch Setting
NOTICE
S4 Dip Switch Setting
No. 9
No. 10
OFF
OFF
ON
ON
NOTICE
No. 1
OFF
(this setting is ignored if refi ll counter
ON
(S5 dip switch 2 and 3) set to 0)
35
Time
(min.)
OFF
60
ON
50
OFF
70
ON
75
Pump-Out Components
Bottom Float Switch Control
Top Float Switch Control
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