Relay Board
NOTE:
DETERGENT AND RINSE AID CIRCUITS
NOT USED ON SD3.
SEQUENCE OF OPERATION
Refer to the correct wiring diagram for model being
serviced when reviewing sequence of operation.
WIRING DIAGRAM - 3 PHASE
WIRING DIAGRAM - 1 PHASE
Initial Conditions
•
Door up (Door Interlock 1LS open).
•
Dishwasher tank empty (Float 1FS open).
•
Water supply requirements (110°F @ 20 ± 5 psi)
to machine are satisfied.
•
Voltage supplied to machine is correct.
•
High limits are closed.
1.
Machine is off. Display is not lit.
A.
Line voltage present at the following
components.
1)
Primary windings of transformer 1T.
2)
Line sides of 1CON (pump motor) and
2CON (tank heater).
3)
Booster heater line side of 3CON.
4)
Relay terminals 1CR 4 and 8.
B.
120VAC from transformer 1T present at the
following components.
1)
Triac Q2 (1CR coil) thru fuse F1.
2)
Primary windings of transformer 2T
thru fuse F2.
3)
Triac Q3 (3CON coil) thru fuse F2.
4)
Triac Q4 (1SOL) thru fuse F2.
SD3 Series - ELECTRICAL OPERATION
Page 19 of 37
F45576 (1015)
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 ...
