Hoshizaki JWE-620UA-6B - Manual (Page 13)

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B. Sequence of Operation
The steps in the sequence are as outlined below.
1. Auto Fill Cycle
a) Auxiliary Code U-1, U-2, U-3, V-0, A-0
“AUTO FILL” lamp fl ashing and “RINSE,” “STANDARD,” or “LONG” lamp on.
If WT WLS is open when power is supplied and the “ON/OFF” button is pressed, the “AUTO
FILL” lamp fl ashes and the auto fi ll cycle starts.
WV energizes. When BT WLF/S closes, WV de-energizes, RPM energizes and power is
supplied to RFT. RPM energizes and power is supplied to RFT for length of time set by
the rinse cycle time setting. For details, see “Rinse Cycle Time” (service menu item 03) in
“II.D.7.b) Service Menu Chart.” RPM then de-energizes for 10 seconds and power is cut
to RFT for 10 seconds. RPM energizes/de-energizes (and power is supplied to and cut to
RFT) the number of times set by the auto fi ll cycle setting. For details, see “Auto Fill Cycle”
(service menu item 07) in “II.D.7.b) Service Menu Chart.” During the auto fi ll cycle, BT
WLF/S opens/closes to energize/de-energize WV.
At the end of the auto fi ll cycle, there is a 5-second dwell time. CB checks WT WLS. If WT
WLS is closed, BZ beeps, the “AUTO FILL” lamp goes off and the “READY” lamp comes
on. If WT WLS is open, BZ beeps continuously, the “AUTO FILL” lamp goes off and “A1”
fl ashes in the display. For details, see “III.B.3.a) Auto Fill Error (A1).”
Note:
1. If DS opens during the auto fill cycle, the “AUTO FILL” lamp goes off, RPM de-
energizes, and power is cut to RFT. When DS closes again, the “AUTO FILL” lamp
starts fl ashing and the unit resumes cycling RPM and power to RFT for the remaining
number of times determined by the auto fi ll cycle setting.
2. BTH and WTH are de-energized during the auto fi ll cycle.
3. If BT WLF/S fails, BT BUWLF/S assumes control. If BT BUWLF/S remains closed for 1
minute, o1 or o2 error appears in the display. For details, see “III.B. Error Codes.”
4. “STANDBY/CLEANING” button is inactive during the auto fi ll cycle.
b) Auxiliary Code A-1 and Later
"AUTO FILL" lamp fl ashing and "RINSE," "STANDARD," or "LONG" lamp on.
If WT WLS is open when power is supplied and the "ON/OFF" button is pressed, the
"AUTO FILL" lamp fl ashes and the auto fi ll cycle starts.
WV energizes. When BT WLF/S closes, WV de-energizes, and RPM energizes. RPM
energizes for length of time set by the rinse cycle time setting. For details, see "Rinse
Cycle Time" (service menu item 03) in "II.D.7.b) Service Menu Chart." RPM then de-
energizes for 10 seconds. RPM energizes/de-energizes the number of times set by the
auto fi ll cycle setting. For details, see "Auto Fill Cycle" (service menu item 07) in "II.D.7.b)
Service Menu Chart." During the auto fi ll cycle, BT WLF/S opens/closes to energize/de-
energize WV.
At the end of the auto fi ll cycle, there is a 5-second dwell time. CB checks WT WLS. If WT
WLS is closed, BZ beeps, the "AUTO FILL" lamp goes off and the "READY" lamp comes