Whirlpool WED99HEDC0, Техническое образование

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5-4
n
HybridCare™ Dryer with Heat Pump Technology
DIAGNOSTICS & TROUBLESHOOTING
For Service Technician Use Only
2. DIAGNOSTIC: Console ID, Motor, and Heater
Make sure the door is closed, and then press the START
button. The dryer will beep and the motor and heater will
turn on. The console ID will be displayed on the LED (“ 099 ”).
Opening the door stops the motor and heater.
¾
If the Console ID is not displayed, replace the user interface
and housing assembly.
¾
If the motor does not turn on, go to TEST #3: Motor Circuit,
page 6-8.
¾
If no heat is detected, go to TEST #4: Heat System, page 6-10.
3. DIAGNOSTIC: Door Switch/Drum LED
Opening the door should display “
EEE
” and turn on the drum
light. Closing the door should turn off the drum light.
¾
If opening the door does not cause “ EEE ” to be displayed,
go to TEST #7: Door Switch, page 6-18.
¾
If opening the door does not turn on the drum light, go to
TEST #8: Drum LED, page 6-19.
4. DIAGNOSTIC: Moisture Sensor
Open the door and locate two metal strips on the face of the
lint screen housing. Bridge these strips with a wet cloth or a
finger.
¾
If a repeating beep is heard and an alphanumeric number is
displayed on the console, the sensor is good.
¾
If not, or if a repeating beep tone is heard before bridging the
moisture strips, go to TEST #5: Moisture Sensor, page 6-15.
Exit Procedure
To exit Loads Test, press the POWER button once or twice
(depending on diagnostic procedure).
INSTALL DIAGNOSTICS
NOTE: The Service Diagnostic mode must be activated before
entering Install Diagnostics; see procedure on page 5-2.
NOTE:
If, at any point, the user presses the
POWER
button or
opens the door during Install Diagnostics, the dryer exits to
standby mode.
NOTE: Door must be closed to perform test. Dryer must be
cool before test to run correctly.
Active Fault Code Display in Install Diagnostics
If the display begins flashing while in Install Diagnostics, it is
displaying an active fault code. Active fault codes are codes
that are currently detected. Only one active fault code can be
displayed at a time.
Entry Procedure
To enter Install Diagnostics, press and release the
2nd
button
used to activate the Service Diagnostic mode. All LEDs turn off
and the START button begins to flash.
PERFORM ALL TESTS: Press and release the START button to
run ALL tests indicated in the chart below.
Exit Procedure
When test is complete, press the POWER button to exit Install
Diagnostics and return to standby mode.
INSTALL DIAGNOSTICS
STEP TEST TEST DRYER FUNCTION COMPONENT NOTES
1
L
1
L
2
&
L
1
to
L
2
Dryer starts L2 detection algorithm Motor On Display shows “----” until voltage is available at UI.
2 L2 detection complete. Motor On Displays L2 level (range 0 to 200)
3
A
I
R
F
L
O
W
Dryer starts L1 detection algorithm.
Airflow detection starts at this step.
Motor On
Heater On
L2 continues to be displayed.
4 L1 detection complete.
CCU calculates L1 to L2.
Motor On
Heater On/Off
Once L1 is calculated, L1 to L2 is immediately
calculated in the CCU.
5
Press the START button to cycle
through L1, L2, and L1 to L2.
Motor On
Heater On/Off
• L1 voltage should be 120 VAC ± 10%
• L2 voltage should be 120 VAC ± 10%
• L1 to L2 voltage should be 240* VAC ± 10%
6
Airflow test near completion.
Motor On
Heater On/Off
The display will count down the final 15 seconds
of the AirFlow detection routine.
7
Airflow detection complete
Motor On
Heater Off
When the airflow routine is complete, the
seven-segment display will show airflow result
(0=BAD, 1=GOOD, 2=INVALID). Also, Dryness
Level will display results (Less=Bad, More=Good,
Nothing=Invalid).
8
W
A
T
E
R
Press the START button to begin
water system test.
Drum Light
On
No water valve present, no water actuated, but
display shows “h2o” when running.
9
Steam test running
Drum Light
On
NOTE: At any time during the test, press and hold the START button for 5 seconds to jump to the water system test.
* Dryer performance is optimized for 2-phase, 240 VAC service. If complaint is made regarding dryer performance and the L1 to L2 voltage is ~208 VAC, dryer may
be connected to a 3-phase service with reduced wattage that will decrease dryer performance.