• Item name displayed on error.
4. K11 energized - N.O. contacts close.
A. 120 VAC to K6-COM / K7-COM.
5. If water is detected in sump or holding tank, the
machine will empty prior to filling.
A. 1PRS has a reading of 500 mV or higher a
drain cycle is initiated.
B. Sump is drained - 3MTR energized for 80
sec.
C. 3MTR de-energized.
D. 2PRS has a reading of 500 mV or higher
holding tank is emptied into sump - 2MTR
energized for 20 sec.
E. Sump is drained 3MTR energized.
F. 3MTR de-energized when cycle time
reaches 0.
6. Fill is initiated.
7. If chemical sensors do not detect chemicals,
PRIMING CHEMICAL PUMPS is initiated.
Fill/Preheat Cycle
1. FILL displayed.
A. K3 relay energizes.
B. D76 turns on.
C. Counter counts down from 300 seconds.
D. 1SOL energized holding tank begins to fill.
2. Chemical pumps prime.
3. 2PRS senses 1400 mV.
NOTE: If counter counts down to 0, before holding
tank reaches 1400mV, a FILL ERROR will occur and
the problem must be fixed before proceeding.
A. K3 relay de-energizes.
B. D76 turns off.
C. 1SOL de-energized.
4. 2MTR energized for 10 sec then de-energized.
A. K7 energizes for 10 sec.
B. D72 turns on for 10 sec.
NOTE: If all variables are met, counter will reset to
300 when returning to step 2.
5. Sump heater 1HTR energized when 1PRS
senses 600 mV.
A. K1 relay energizes.
B. D75 turns on.
6. Steps 2 - 5 repeat until 1PRS senses 840 mV.
7. 1MTR energized for 3 - 10 sec to prime wash
arms.
A. K6 energizes.
B. D69 turns on.
8. At end of 3 - 10 sec K1 cycles sump heater at
155°F (1QTM) until wash button is pressed.
9. READY displayed.
Wash and Drain Cycle SU-L 120/60/1
1. Wash button pressed.
2. WASH displayed.
3. K6 energizes.
A. N.C. contacts open and power is prevented
from energizing 1HTR during wash cycle.
B. N.O. contacts close and 1MTR energized.
1) 1MTR energized and runs at soft start
speed for 5 sec.
2) Operates at full speed for remainder of
wash cycle.
C. D69 turns on.
4. 5MTR detergent pump energized for 10 sec.
A. D62 turns on for 10 sec.
5. 1SOL energized to fill holding tank.
A. K3 energized.
B. D76 turns on.
NOTE: If Rinse Aid is being used, 6MTR energized
to add Rinse aid to the holding tank.
6. 2PRS senses 1400 mV.
A. 1SOL de-energized.
1) K3 de-energizes.
2) D76 turns off.
7. Wash cycle time ends.
A. 1MTR de-energized.
1) K6 de-energizes.
2) D69 turns off.
B. 2 sec delay to stabilize water for accurate
1PSR reading.
C. 1CR energized if temp below 155°F.
8. Drain cycle begins - WASH still displays.
A. 3MTR energized.
SG, SU-L, SU-H DISHWASHERS - ELECTRICAL OPERATION
F45577 (1215) Page 48 of 59
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