Whirlpool WOC54EC0H Service Manual page 40

DIAGNOSTICS & TROUBLESHOOTING
Code Description
F3 Sensors E0 Main oven sensor open or
shorted
F3 Sensors E1 Bottom oven sensor open or
shorted
2-22 n Whirlpool Smart Wall Ovens
®
For Service Technician Use Only
Explanation and Recommended Procedure
NOTE: Before starting any test, cycle power to the oven (power off, wait
10 seconds, and power on).
PROCEDURE: Before proceeding, verify the error code by entering the Diagnostics
mode and selecting "Error Diagnostics".
1. Unplug the oven or disconnect power.
2. Disconnect connector P3 from Copernicus Appliance Manager and measure
the resistance of the sensor between P3-1 and P3-2. Test for 1000Ω to 1200Ω
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 before operating.
4. Plug in the oven or reconnect power.
5. Enter Diagnostics mode 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.
NOTE: On the status screen, the unit of measurement is Celsius.
6. If not, unplug the oven or disconnect power.
7. Replace the Copernicus ACU board.
8. Reassemble all parts and panels before operating.
9. Plug in the oven or reconnect power.
10. Verify operation is normal. Enter Diagnostics mode, select "Error Diagnostics",
and clear the history.
V
Upper Oven
Temperature
1
V
Sensor 2
3
Upper Copernicus
4
5
ACU
6
7
8
9
10
P3
V
Lower Oven
Temperature
1
V
Sensor 2
3
Lower Copernicus
4
5
ACU
6
7
8
9
10
P3