Scotsman NW458 Service Manual page 31

seconds. The machine should stop with the
blinking of the Yellow LED (slow blink).
4. Pour on
- NW 458-600 250 cc
- NW 1008 350 cc
of Scotsman Ice Machine Cleaner directly into
the reservoir then push again the RESET
BUTTON for a while. The water pump starts to
operate with the fast blinking of the Yellow
LED while the water inlet valve will be
energized till the fill up of the water sump.
5. After 15 minutes push the RESET BUTTON
for a while. The P.C. Board puts the machine
in automatic rinsing mode with the special
blinking (blink twice and repeat) of the Yellow
LED.
NOTE: RINSING mode consists of:
a) Energize the water drain valve and the
water pump for 40 seconds to empty the
reservoir
b) De-energize the water drain valve and
the water pump for 1 minute
c) Energize the water inlet valve till the fill
up of the water sump
d) Energize the water pump for 1.5
minutes. The above sequence is repeated
7 times so to be sure to have removed any
possible trace of Ice Machine Cleaner.
6. At the end of the 7th Rinsing cycle the P.C.
Board stops the operation of the machine with
the blinking (slow) of the Yellow LED.
7. Pushing the RESET BUTTON for 6-8
seconds the machine restarts in the freezing
cycle.
8. Replace the evaporator cover deflector and
front panel.
9. Check the next batch of cubes to be sure all
the cleaner is gone (no sour taste).
CAUTION - DO NOT use ice cubes
produced from the cleaning solution. Be
sure none remains in the bin.
10. Pour hot water into the storage bin melt
the cubes, and to also clean the bin drain.
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