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WT. The conveyor does not start during the supplementary fi ll cycle. "A3" appears in the
display and the "AUTO FILL" lamp fl ashes. BZ beeps three times only at the beginning.
If WT WLS is still open after the supplementary fi ll cycle, another cycle starts. If WT
WLS still does not close, "A3" appears in the display, BZ beeps and the unit shuts down.
For adjustment of the supplementary fi ll cycle time, see "Supplementary Fill Cycle Time"
(service menu item 07) in "II.F.7.b) Service Menu Chart." For details, see "III.B.3.c)
Wash Tank Water Level Error (A3)."
2. If WT WLS and the wash start switch are closed after RPM runs for the supplementary
fi ll cycle time, WPM energizes and the conveyor starts.
3. If SP is opened and closed during operation and the wash/rinse start switch is open, the
unit does not resume operation. Load another rack to close the wash start switch. The
unit resumes operation if SP is closed during the extended wash/rinse cycle time.
4. Table Limit Switch
If a rack reaches the end of the clean dishtable and actuates TLS lever (TLS closed),
WPM and RPM de-energize, the conveyor stops and "L1" appears in the display. When
the rack is removed and TLS lever returns to the original position (TLS open), WPM and
RPM energize and the conveyor starts after 3 seconds unless the wash/rinse start switch
is open.
5. Emergency Stop Button
To shut down the unit in case of emergency, press ESB on top of the unit (wash
compartment exit side). To resume operation, turn ESB clockwise to unlock and press the
"ON/OFF" button on the operation panel.
Note: The unit is inoperative without ESB connected at the time of installation.
6. Drain
This unit does not have a drain valve.
The overfl ow pipe in WT drains excess water from WT. To completely drain WT, remove
the overfl ow pipe.
To drain BT, use the “ON/OFF” button on the operation panel to turn off the unit, then turn
off the dishwasher and booster tank power supplies. Lockout/Tagout to prevent the power
supplies from being turned back on inadvertently.
Use BT drain hose to drain BT. WARNING! To avoid possible burns, allow BT water
temperature to fall below 104°F (40°C) before draining.
Legend: BT–booster tank; BTH–booster tank heater; BUWLF/S–backup water level fl oat
switch; BZ–buzzer; CB–control board; DFT–detergent feeder terminals (detergent
feeder not provided by Hoshizaki); DS–door switch; ESB–emergency stop button;
RFT–rinse aid feeder terminals (rinse aid feeder not provided by Hoshizaki);
RPM–rinse pump motor; SP–service panel; SPS–service panel switch; WLSF/
S–water level safety float switch; TLS–table limit switch; WLF/S–water level
fl oat switch; WLS–water level sensor; WPM–wash pump motor; WT–wash tank;
WTH–wash tank heater; WV–inlet water valve