KitchenAid Pro Line KHEV01RSS Technical Education page 104

6. Unplug dryer or disconnect power.
7. Access the moisture sensor by remov-
ing the 2 moisture sensor screws, then
disconnect the moisture sensor wire con-
nector.
8. Measure the resistance across the pins of
the moisture sensor. If a small resistance
is measured here, replace the moisture
sensor.
9. Measure the resistance across the mois-
ture sensor wires.
• If a resistance less than infinity is mea-
sured, replace this component (Wire
Harness, Moisture Sensor).
10. If moisture sensor diagnostic test passes,
check the temperature sensor: Perform
TEST #3a.
• If the problem persists after replacing
the moisture sensor and temperature
sensor, replace the machine control
electronics.
TEST #5 Button and LED
Refer to the Diagnostic Tests on page 6-18
and activate the Diagnostic Test #1 mode.
Check for the following situations:
None of the LEDs light up:
1. See "Diagnostic Guide/ Before servic-
ing..." on page 6-17.
2. Visually check that connector P1 is insert-
ed all the way into the machine control
electronics. See Accessing & Removing
the Electronic Assemblies on page 6-28.
• If these connections are good, test the
user interface by using Test #5a.
• If this test passes, replace the machine
control electronics.
• Otherwise, replace the user interface
assembly.
A particular group of LEDs does not light
up:
A group or combination of LEDs share a com-
mon electronic connection. If this connection is
open, all of the LEDs in the group will be dis-
abled. Replace the user interface assembly.
A single LED does not light up:
Press the button associated with the LED
several times. If the LED does not light up,
the LED has failed. Replace the user inter-
face assembly.
No beep sound is heard:
If the associated LEDs do light up, it is possi-
ble that the beeper circuit has failed. Replace
the user interface assembly.
No dryer function is activated when a par-
ticular button is pressed:
If the associated LEDs do light up, it is pos-
sible that the machine control electronics has
failed. Check functions of buttons by perform-
ing TEST #5a before replacing the machine
control electronics.
TEST #5a LED and TouchPad (UI Only)
This operation allows a cursory check of the
user input switches, indicators, and sensor.
This routine is a test of the User Interface only.
When in this mode, the communication to the
control is halted. To start the key test mode:
1. Unplug dryer or disconnect power.
2. Press and hold the Start and Cycle End
Tone buttons, and while still holding these
buttons, perform step 3:
3. Plug in dryer or reconnect power.
4. All LEDs will light up and the message
"YOU ARE IN TEST MODE! Chase the
LEDS!!!" will scroll across the display.
5. Press Start to run the test.
6. After pressing Start, touch the appropri-
ate lighted cycles and options. Continue
through all the selections until the Can-
cel button. This test will then exit upon
completion.
If there are any failures during this testing, re-
place the user interface assembly.
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