Factory Use (S4 Dip Switch 8); Freeze Timer (S4 Dip Switch 9 & 10); Float Switch Control Selector (S5 Dip Switch 1) - Hoshizaki Serenity Series Service Manual

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.

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.
This dip switch setting allows use of this control board in single and dual float switch
models. This model uses a single float switch style.
NOTICE
S4 Dip Switch Setting
No. 9
OFF
OFF
ON
ON
NOTICE
S5 Dip Switch Setting Upper or Lower Float Switch
No. 1
OFF
ON
Time
(min.)
No. 10
OFF 60
ON 50
OFF 70
ON 75
Control
Lower Float Switch Enabled
Upper Float Switch Enabled
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