[E] Service Mode - Hoshizaki KM-40C-HC Service Manual

[e] SERVICE MODE

The settings listed below are monitored and adjusted by service personnel.
1) Press and hold the reset button and press the cleaning button three times to enter
the service mode. The display shows one of the setting codes.
2) Use the up or down button until the display shows the desired setting code. Then,
press the enter button.
3) Use the up or down button to adjust the setting. Then, press the enter button.
4) After finishing the settings, use the up or down button until the display shows "END".
Then, press the enter button to exit the service mode.
Code Item
Harvest
1 completion delay
timer
5 Water saver
Freeze backup
6
timer
8 Slap control 1
Thermistor
9 temperature
control 1
Thermistor
10 temperature
control 2
Thermistor
11 temperature
control 3
Description
Time since evaporator thermistor reads 9°C
(control board setting) until harvest cycle
ends.
Time to de-energize water valve and energize
pump motor before the end of harvest cycle.
Cannot be set to 5 seconds. 0 >> 10 >> 15
>> 20...
If freeze cycle does not end within the set
time, unit shuts down with error.
If bin control trips in freeze cycle, harvest
cycle begins when minimum freeze cycle time
is up. If bin control trips in the last 10 seconds
of harvest cycle, harvest cycle is extended
for 30 seconds, which repeats every time bin
control trips.
If evaporator outlet temperature differs by 4°C
or more before and after water saver, harvest
cycle is extended for 30 seconds.
If evaporator outlet temperature differs by
2°C or more but less than 3.5°C within 30
seconds of freeze cycle, next harvest cycle is
extended for 30 seconds. If evaporator outlet
temperature differs by 3.5°C or more within
30 seconds of freeze cycle, harvest cycle
begins when minimum freeze cycle time is
up.
If evaporator outlet temperature differs by
more than 3.5°C but 5°C or less just before
the end of harvest cycle, harvest cycle is
extended for 50 seconds. If evaporator outlet
temperature differs by 3.5°C or less, another
harvest cycle begins, which repeats not more
than three times. Freeze cycle begins even if
evaporator outlet temperature differs by 3.5°C
or less at the end of the third harvest cycle.
21
Max. Min. Step
210 sec 0 sec 10 sec
60 sec 0 sec 5 sec
120 min 50 min 10 min
ON OFF
ON OFF
ON OFF
ON OFF
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