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8. INSUFFICIENT WASHING RESULTS
If washing results seem insufficient, check for the following possible causes:
* Small items such as chopsticks and spoons or part of the dishes stick out of the rack to
block the spray arms. Remove the projecting items.
* The dishes are packed and stacked in the rack. Reload the dishes. See “5. [b] LOADING
DISHES”.
* The strainer or filter is clogged. Clean them. See “15.
DAILY MAINTENANCE”.
* The spray arm nozzles are clogged. Clean them. See “15.
DAILY MAINTENANCE”.
* The upper and lower headers (spray arm shafts) are
clogged with small objects such as toothpicks. Clean
them.
* The detergent tank is out of detergent. Replace it with a
new tank. See “3. CHECKING DETERGENT TANK AND
RINSE AID TANK”.
* Wash water is not clean. Press the “ON/OFF” button, check that the display goes off, and
pull out the drain pipe to drain the wash water. Reinsert the drain pipe, then press the “ON/
OFF” button to supply fresh wash water.
* The wash or rinse water temperature becomes too low in some conditions. Wait until the
proper temperature is reached.
* The dishes are heavily soiled. Preclean before loading the dishes.
* Iron or tannin content in wash water turns the dishes yellowish or faintly black. Soak the
dishes in a plastic bucket containing hot water and commercial bleach.
* White spots left on clear glassware can be caused by different reasons. Consult with an
authorized Hoshizaki service company or the detergent supplier.
* Adjustments of the wash and rinse cycle times, hot water temperature, and detergent
concentration may be required depending on the water quality, dish types and materials,
and soil conditions.
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