5.
Connect power to machine.
6.
Verify incoming AC line voltage at the line service
connection point.
7.
Verify incoming voltage is present to primary side
of transformer 1T.
8.
Measure output AC voltage across secondary
windings of transformer. Voltage should be
approximately 120VAC.
A.
If voltage is present, transformer is
functioning.
B.
If output voltage is not present, verify
transformer wiring connections.
1)
If connections are correct, replace
transformer.
C.
If output voltage is low, disconnect power
from machine.
1)
Disconnect one side of the secondary.
2)
Apply power to machine.
3)
Check output voltage across
secondary windings.
a.
If voltage is still low, replace
transformer.
b.
If voltage is approximately
120VAC, check components and
related wiring connected to the
secondary.
TRANSFORMER 2T - TEST
Certain procedures in
this section require electrical test or
measurements while power is applied
to the machine. Exercise extreme
caution at all times and follow Arc Flash
procedures. If test points are not easily
accessible, disconnect power and
follow Lockout/Tagout procedures,
attach test equipment and reapply
power to test.
1.
Remove FRONT COVER.
2.
Open control door.
3.
Remove right side cover.
4.
Connect power to machine.
5.
Verify incoming 120VAC voltage is present to
primary side of transformer 2T.
Fig. 9
A.
If 120VAC is not present, check fuse F2 on
relay board.
1)
If fuse is good, perform
TRANSFORMER 1T - TEST.
6.
Measure output AC voltage across secondary
windings of transformer. Voltage should range
between (11.5 - 16VAC).
Fig. 10
A.
If voltage is present at output, transformer is
functioning.
B.
If voltage is not present at output, verify
transformer wiring connections.
1)
If connections are correct, replace
transformer.
C.
If voltage is low, disconnect power from
machine.
1)
Disconnect one side of the secondary.
2)
Apply power to machine.
3)
Check voltage across secondary
windings.
SD3 Series - SERVICE PROCEDURES AND ADJUSTMENTS
F45576 (1015)
Page 14 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 ...
