Harvest Pump Time (Harvest Assist (S4 Dip Switch 7); Factory Use (S4 Dip Switch 8); Freeze Timer (S4 Dip Switch 9 & 10) - Hoshizaki KM-350MWJ Service Manual

6. Harvest Pump Time (Harvest Assist (S4 dip switch 7)

Factory set for proper operation. Do not adjust. Adjustment outside of the factory
default setting may result in damage to the appliance.
Depending on S4 dip switch 7 setting, the pump motor either stays off or is energized
during the last seconds of the harvest cycle. When the pump motor is energized (S4 dip
switch 7 on), water circulates over the evaporator. The harvest water valve is open during
harvest for a maximum of 6 minutes or the length of harvest minus the harvest pump
time value(S4 dip switch 6), whichever is shorter.
When S4 dip switch 7 is in the on position and harvest begins, 50 sec. before harvest
termination, LED 4 turns off, inlet water valve Next, LED 3 turns on and control board
K1 connector pin #4 (R) energizes, energizing the pump motor for the last seconds of
harvest. Harvest pump time adjusted by S4 dip switch 1 & 2 and S5 dip switch 4 settings.
Contact Technical Support before adjusted these settings.

7. Factory Use (S4 dip switch 8)

Factory set for proper operation. Do not adjust. This must be left in the factory default
position.
8. Freeze Timer (S4 dip switch 9 & 10)
Adjust to proper specification, 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.I.3. Low Ice Production"
for possible solutions. The freeze timer is factory set and no adjustment is required.
Before changing this setting, contact Hoshizaki Technical Support at 1-800-233-1940 for
recommendations.
NOTICE
S4 Dip Switch Setting
No. 7
OFF
ON
NOTICE
S4 Dip Switch Setting
No. 9 No. 10
OFF OFF
OFF ON
ON OFF
ON ON
40
Harvest Pump
Time (sec.)
(Harvest Assist)
0
50
Time
(min.)
60
50
70
75