KitchenAid Pro Line KHEV01RSS Technical Education page 85

4. Check the drive motor and motor capaci-
tor. Access the drive motor by removing
the toe panel. See Removing the Toe
Panel, page 6-14.
5. Disconnect the white motor connector
from the drive motor. See Figure 4.
Motor
Capacitor
Drive Motor
Figure 4.
Disconnect the white motor connector.
6. Check the resistance value of the motor
capacitor. See Figure 5 for location.
IMPORTANT: Discharge the capacitor by
touching a 20,000 ohm resistor to the mo-
tor capacitor terminals and the capacitor
case.
a) Set the ohmmeter to the R X 10k
scale.
b) Contact the motor capacitor terminals.
The resistance should be low at first
and then gradually increase towards
infinity.
• If the resistance at the motor capaci-
tor is correct, go to step 7.
• If the resistance at the motor capacitor
is not correct, replace the capacitor.
White Motor
Connector
6-7
7. Check the resistance value of the motor's
Main winding coil by contacting points 7
and 8 of the white motor connector, as
shown in Figure 4.
• If the resistance at the drive motor is
in the range of 2.4–3.6 ohms, there
is an open circuit between the motor
and the machine control electronics.
Replace the main wiring harness.
• If the resistance at the drive motor is
much greater than 4 ohms, replace
the drive motor.
8. Door Switch problems can be uncovered
in the Diagnostic Tests on pages 6-3 &
6-4; however, if this was not done, the
following can be done without applying
power to the dryer. Connect an ohmmeter
across P6-2 (black wire) and P6-1 (black
wire). With the door properly closed, the
ohmmeter should indicate a closed cir-
cuit (0–2 ohms). If not, replace the door
switch assembly.
TEST #3 Heating Circuit
This test is performed when either of the fol-
lowing situations occur:
• Dryer doesn't heat
• Heat won't shut off
This test checks the components making up
the heating circuit. The following items are
part of this system:
–
Harness/connection
– Heater relay
–
Thermal cut-off (TCO)
–
High limit thermostat
–
Heater element
(inside heater
assembly
–
Temperature sensor
– Machine control electronics
See ESD information, page 6-2.