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Selector Switches
A selector switch on an automatic dishwasher gives the customer the option of choosing the type of wash best suited
to the dish load and type of soil Some economy models have this selection built into the timer The most common type
of cycle selector, however, employs a push button switch which bypasses unwanted portions of a cycle
The pushbutton switch mechanism,although appearing complex because of its many terminals, can be rather simple to
trouble shoot Always refer to the CycleSelection Switch Functions Chart which is printed with the wiring diagram and
follow the procedure outlined in the following example,
Checking The 5-Button Swttch
1 Disconnect dishwasher from electrical power.
2 Detach control panel from inner door panel
3
Disconnect Leadsfrom the switch and connect leads of ohmmeter to terminals on the switch as they are
designated in the "Cycle Selection Switch Functions" chart, (Figure 57) Forexample, beginwith the first column
under "'Cycle Selection Switch Functions" Connect,one ohmmeter lead to the "1" terminal and the other lead
to the "3" termirial. Presseach of the four buttons and compare ohmmeter reading with chart, |f chart shows
switch "OPEN" (0) no continuity should register on ohmmeter when button is pressed. If "CLOSED" (C)
continuity should register on ohmmeter when button is pressed.
Fo!low this checking procedure through all cycle switch positions, being certain the ohmmeter leads are connected
to the proper terminals. Failure of switch to register as shown on the chart indicates a defective switch and it
must be replaced, (Figure57)
NOTE
Some 5elector swztch termma/s are identified by colors ihstead of digiZ_,
CYCLE SELECTION SWITCH FUNCTION
SWITCH TC
SELECTION 1 2 I S
R_nse'n Hold C OIC
Normal Wosh _ C C C
Power Seal wosh C_
0 OPEN
C CLOSED
FIGURE57
Since failure of the machine to function properly can result from failure of one of several components, be certain
the above checks are accurately performed before labeling a selector switch "defective,"
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