Tech Sheet

FOR SERVICE TECHNICIAN’S USE ONLY
20
FAILURE ERROR LIKELY FAILURE CONDITION
F6 E4
User interface/Appliance manager state status
mismatch
SUGGESTED CORRECTIVE ACTION 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.”
NOTE: If other error codes are stored, troubleshoot those other error codes
rst.
1. Unplug oven or disconnect power.
2. Replace Copernicus Appliance Manager.
3. Reassemble all parts and panels before operating.
4. Plug in oven or reconnect power.
5. Cycle power. If error persists after the Copernicus Appliance Manager is
replaced, unplug oven or disconnect power. Go to Step 7.
6. If the error is gone, go to Step 10.
7. Replace the HMI-Central/UI board.
8. Reassemble parts and panels before operating.
9. Plug in oven or reconnect power, and follow the
on-screen prompts for model selection.
10. Verify operation is normal. If operation is normal, goto Step 14. If error
still exists, go to Step 11.
11. Unplug oven or disconnect power.
12. Replace the control panel assembly.
13. Plug in oven or reconnect power.
14. Follow the on-screen prompts for model selection.
15. Verify operation is normal. Enter Diagnostics mode, select “Error
Diagnostics,” and clear the history.
FAILURE ERROR LIKELY FAILURE CONDITION
F6 E8
Lost communications with microwave oven
appliance manager
SUGGESTED CORRECTIVE ACTION 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. Make sure the oven is plugged in. Open microwave door to check if light
comes on.
2. Ensure the Sabbath mode is disabled.
3. Unplug oven or disconnect power.
4. Check the connection between Oven User Interface Board J15-2 (yellow)
and J15-3 (orange) and Microwave Appliance Manager P26-3 (orange)
andP26-4 (yellow).
5. If harness is correct, replace the Microwave Appliance Manager.
6. Reassemble all parts and panels before operating.
7. Plug in oven or reconnect power.
8. If the error appears again, unplug or disconnect power and replace HMI-
Central/UI board.
9. Reassemble all parts and panels before operating.
10. Plug in oven or reconnect power.
User Interface
Microwave
Appliance Manager
P26
432
1
543
21
YL
OR
J15
Wide/Power Nav
YL
OR