Whirlpool WOC75EC7H, Service Manual

Page: 28 / 84

For Service Technician Use Only
DIAGNOSTICS & TROUBLESHOOTING
2-10
n
Whirlpool
®
Smart Wall Ovens
Code Description Explanation and Recommended Procedure
F2 Keypad
E6
Microwave
Generation Error
NOTE: Before starting any test, cycle power to the oven (power off, wait 10 seconds, then power
on).
PROCEDURE: Before proceeding, verify the error code by entering the Diagnostics Menu and
selecting “Error Diagnostics”.
1. Unplug the oven or disconnect power.
2.
Check that connector J1 is firmly connected. If it is not, go to Step 3. If it is, go to Step 6.
3.
Reconnect any loose connectors.
4. Reassemble all parts and panels before operating.
5.
Plug in microwave oven or reconnect power. If the failure is gone, go to Step 9. If the failure
is still present, unplug the oven or disconnect power.
6. Replace the HMI-Central/UI board Control Panel Assembly.
7.
Reassemble all parts and panels before operating.
8. Follow the on-screen prompts to select for a model selection.
9.
Verify operation is normal. Enter Diagnostics Mode, select “Error Diagnostics”, and clear the
history. If the HMI-Central/UI board Control Panel Assembly was replaced, there is no need
to clear the error history.
F2 Keypad
E1
Stuck/shorted key
F3
Sensors
E0
Main oven sensor
open or shorted
NOTE: Before starting any test, cycle power to the oven (power off, wait 10 seconds, then power
on).
PROCEDURE: Before proceeding, verify the error code by entering the Diagnostics Menu and
selecting “Error Diagnostics”.
1. Unplug the oven or disconnect power.
2. Disconnect connector P3 from Oven ACU, and measure the resistance of the sensor between
P3-1 and P3-2. Test for 1000 Ω to 1200 Ω at 77°F (25°C). Check sensor for short to ground. If
checks on sensor are not correct, replace sensor and repeat the checks.
3. Reassemble all parts and panels and plug in the oven or reconnect power.
4. Enter the Diagnostics Menu and select “Sensors & Switches” to verify if the temperature
shown in the Cavity Temp display is correct (ambient temperature). If it is, go to Step 8. If it is
not, unplug microwave oven or disconnect power.
NOTE: On the status screen, the unit of measurement is Celsius.
5. Replace the Copernicus ACU.
6. Reassemble all parts and panels before operating.
7. Plug in the oven or reconnect power.
8. Verify operation is normal. Enter the Diagnostics Menu, select “Error Diagnostics”, and clear
the history.
Speaker
Keypad User Interface J1
Ribbon Cable
Control Panel Assembly
Copernicus
ACU
Oven
Temperature
Sensor
V
V
1
2
5
3
4
10
P3
6
7
8
9