Service Guide
For Service Technician Use Only
DIAGNOSTICS & TROUBLESHOOTING
2-22
n
Whirlpool
®
Smart Wall Ovens
Code Description Explanation and Recommended Procedure
F3 Sensors E0 Main oven sensor open or
shorted
NOTE: Before starng any test, cycle power to the oven (power o, wait
10 seconds, and power on).
PROCEDURE: Before proceeding, verify the error code by entering the Diagnoscs
mode and selecng “Error Diagnoscs”.
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 operang.
4. Plug in the oven or reconnect power.
5. Enter Diagnoscs 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 operang.
9. Plug in the oven or reconnect power.
10. Verify operaon is normal. Enter Diagnoscs mode, select “Error Diagnoscs”,
and clear the history.
F3 Sensors E1 Boom oven sensor open or
shorted
Upper Copernicus
ACU
Upper Ov
en
Te
mperature
V
Sensor
V
1
2
5
3
4
10
P3
6
7
8
9
Lower Copernicus
ACU
Lo
wer Oven
Te
mperature
V
Sensor
V
1
2
5
3
4
10
P3
6
7
8
9