[D] Control Board Check Procedure - Hoshizaki KM-61BAH Service Manual

e) Water Saver Timer (S1 dip switch 7 & 8)
The water saver timer allows the water valve to close and the pump motor to circulate
water in the tank during the fi nal part of harvest. The water valve is open during harvest
for a maximum of 6 minutes or the length of harvest minus 0, 10, 30, or 50 seconds
(determined by the water saver timer setting), whichever is shorter. When the water
valve closes, the pump motor energizes and runs for the time determined by the water
saver timer setting.
The water saver timer is factory-adjusted, and no adjustment is required.
Dip Switch Setting
No. 7 No. 8
OFF OFF
ON OFF
OFF ON
ON ON
f) Freeze Timer (S1 dip switch 9 & 10)
Adjust to proper specifi cation, or the unit may not operate correctly.
The freeze timer setting determines the maximum allowed freeze time to prevent
possible freeze-up issues. Upon termination of freeze timer, machine initiates the
harvest cycle. After 2 consecutive timer terminations, machine will shut down, possibly
indicating a problem.
The freeze timer is factory adjusted, and no adjustment is required.
Dip Switch Setting
No. 9 No. 10
OFF OFF
ON OFF
OFF ON
ON ON

[d] CONTROL BOARD CHECK PROCEDURE

Before replacing a control board that does not show a visible defect and that you
suspect is bad, always conduct the following check procedure. This procedure will help
you verify your diagnosis.
1) Check the dip switch settings to assure that S1 dip switch 3, 4, 7, 8, 9, & 10 are in the
factory default position. S1 dip switch 1, 2, 5, & 6 are cleaning adjustments and the
settings are fl exible.
Time
(seconds)
0
10
30
50
CAUTION
Time
(minutes)
60
50
70
60
18