Fig. 24
A.
Verify the FILL LED on relay board is lit
when J12 terminals on control board are
shorted together.
Fig. 25
1)
If the solenoid does not energize, but
the FILL LED on relay board is lit,
check relay board J1-7 for 120VAC.
a.
If 120VAC is not present across
J1-7 and X2, the relay board has
malfunctioned.
b.
If 120VAC is present across J1-7
and X2, remove the short from
J12 and check Fill/Rinse circuit.
NOTE:
When 1SOL is energized, the voltage across
J6-5 and ground will be zero or a few millivolts. Circuit
activation can be verified by measuring 5VDC voltage
across the control board +5VDC test pad and J6-5
when the FILL/RINSE circuit is active.
2)
If 1SOL does not energize and the FILL
LED does not light, check control board
voltage output to relay board across
J6-5 (control board) and ground =
0VDC (J6-5 and +5VDC test pad =
5VDC).
a.
If voltage measurements indicate
circuit is active, verify wiring to
relay board is correct. If correct,
replace relay board.
b.
If voltage measurements are not
present, replace control board.
c.
If voltage measurements remain
constant at approximately
4.5VDC, check the door interlock
circuit 1LS.
3)
If the 1SOL energizes, remove J12
short and replace the control board.
Long Fill Time (6 minutes)
1.
Verify the following.
A.
OPERATING CONDITIONS are satisfied as
stated at the beginning of this section.
B.
Control board is programmed to operate as
an SD3.
C.
Chamber door is closed.
D.
Flowing water pressure is correct (20psi ±
5psi).
E.
Float switch circuit test good and is
connected to wiring harness.
F.
Drain is closed and not leaking.
2.
If Low Water Level LED on control board is not lit
when float switch is operated (closed),
disconnect the thermistor and float connector
from J2 on control board.
Fig. 26
A.
Check continuity of float switch. Cycle float
(open and close) while observing meter.
B.
If continuity is not measured when float is
operated, check float switch circuit.
C.
If continuity exists, float is working normally.
SD3 Series - TROUBLESHOOTING
F45576 (1015)
Page 30 of 37
Summary of Contents for SD3 Series
Page 1: ...SD3 Series SD3 ML 130232 SERVICE and PARTS MANUAL F45576 1015 ...
Page 23: ...WIRING DIAGRAM 1 PHASE Fig 16 SD3 Series ELECTRICAL OPERATION Page 23 of 37 F45576 1015 ...
Page 24: ...WIRING DIAGRAM 3 PHASE Fig 17 SD3 Series ELECTRICAL OPERATION F45576 1015 Page 24 of 37 ...
Page 39: ...SD3 DISHWASHER REPLACEMENT PARTS F 43302 Rev B October 2015 2 2015 ...
Page 41: ...CONTROLS SD3 DISHWASHER REPLACEMENT PARTS F 43302 Rev B October 2015 4 ...
Page 43: ...CONTROL CABLES SD3 DISHWASHER REPLACEMENT PARTS F 43302 Rev B October 2015 6 ...
Page 45: ...CONTROL BOX SD3 DISHWASHER REPLACEMENT PARTS F 43302 Rev B October 2015 8 ...
Page 47: ...MOTOR AND PUMP SD3 DISHWASHER REPLACEMENT PARTS F 43302 Rev B October 2015 10 ...
Page 49: ...UPPER WASH ARM SD3 DISHWASHER REPLACEMENT PARTS F 43302 Rev B October 2015 12 ...
Page 51: ...LOWER WASH ARM SD3 DISHWASHER REPLACEMENT PARTS F 43302 Rev B October 2015 14 ...
Page 53: ...RINSE PIPING WITHOUT BOOSTER SD3 DISHWASHER REPLACEMENT PARTS F 43302 Rev B October 2015 16 ...
Page 55: ...RINSE PIPING WITH BOOSTER SD3 DISHWASHER REPLACEMENT PARTS F 43302 Rev B October 2015 18 ...
Page 57: ...BOOSTER PIPING SD3 DISHWASHER REPLACEMENT PARTS F 43302 Rev B October 2015 20 ...
Page 59: ...ELECTRIC BOOSTER TANK SD3 DISHWASHER REPLACEMENT PARTS F 43302 Rev B October 2015 22 ...
Page 63: ...DRAIN UNIT SD3 DISHWASHER REPLACEMENT PARTS F 43302 Rev B October 2015 26 ...
Page 67: ...DOOR ASSEMBLY SD3 DISHWASHER REPLACEMENT PARTS F 43302 Rev B October 2015 30 ...
Page 69: ...PANELS AND RACK SUPPORT SD3 DISHWASHER REPLACEMENT PARTS F 43302 Rev B October 2015 32 ...
Page 71: ...SD3 DISHWASHER REPLACEMENT PARTS FORM 43302 Rev B OCTOBER 2015 PRINTED IN U S A ...
