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 Cycle Selection Switch Functions Chart which is printed with the wiring diagram and follow the procedure outlined in the following example,
Checking The 5-Button Swttch
1Disconnect dishwasher from electrical power.
2 Detach control panel from inner door panel
3Disconnect 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) For example, 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 |
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SELECTION | 1 | 2 I S | 0 OPEN | |
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R_nse'n | Hold | C | OIC | C CLOSED |
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Normal | Wosh _ | C C C |
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Power | Seal wosh | C_ |
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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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