Testing The Function And Temperature Selectors; Function Selector; Temperature Selector - Electrolux E36DF76EPS Service Manual

Testing Function and temperature selectors
The function and temperature selectors both use a Piher N-15 10 K ohm pot. Note that the tolerance on this part
is 30%, so the measured resistance between pins 1 & 3 will be 10,000 ± 3,000 Ohms. The controller uses a
ratiometric approach to determine position so this variation does not affect the software.

Function selector

The function selector usually fails, open or intermittent. When this happens, the oven will not operate in any
function.
To test the functions selector in the field:
1. Measure the resistance between pins one and three.
If the reading is between 7000 and 13,000 ohms go to step 2.
If the reading is not between 7000 and 13,000 ohms, the function selector is defective.
2. Set the function Selector to bake and measure the resistance between pins two and three.
If the reading is between 580 and 1720 ohms, the function selector is good.
If the reading is not between 580 and 1720 ohms, the function selector is defective.

Temperature selector

The temperature selector usually fails, open or intermittent. When this happens, the oven will not operate in
any function.
To test the temperature selector in the field:
1. Measure the resistance between pins one and three.
If the reading is between 7000 and 13,000 ohms go to step 2.
If the reading is not between 7000 and 13,000 ohms, the temperature selector is defective.
2. Set the temperature selector to 300° and measure the resistance between pins two and three.
If the reading is between 2200 and 4300 ohms, the temperature selector is good.
If the reading is not between 2200 and 4300 ohms, the temperature selector is defective.
Note: It is sometimes easier to make these measurements by disconnecting plug P9 from the elec-
tronic oven control board and measuring in the harness side of the plug. When testing the function
selector at plug P9 pins four and six should read between 7000 and 13,000 ohms and pins five and six
should read 580 to 1720 ohms. When testing the temperature selector at plug P9 pins one and three
should read between 7000 and 13,000 ohms and pins two and three should read between 2200 and
4300 ohms.
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