Hello Sharp,
The F6 E0 failure code indicates a condition of lost communication. The following is the procedure for corrective action as described on the tech sheet for the unit: Before proceeding, perform steps 1 through 3 of “To Enter Diagnostics Mode.” Ensure AM software, UI software and EEPROM CHECKSUM versions appear on the lower text line. If AM software and EEPROM versions do not appear, UI and AM may not be
communicating. Verify this for the UI. The microwave UI will show the AM software and the EEPROM versions for the microwave appliance
manager.
1. Unplug microwave oven or disconnect power.
2. Check both the fuses in the microwave module and the fuse located next to the appliance manager. If either is open or disconnected, it
will break contact for the communication line and cause this error.
3. Check microwave module appliance manager for damage on corners of board. Broken traces can cause communication failure.
4. Open the back panels and make sure the P2 and U3 connectors are fully inserted on the microwave user interface and the wide interface
board. Make sure the P1 connector on the wide interface board and the P10 connector on the microwave oven appliance manager are
inserted. If the P2 (mwo UI) and U3 (wide interface board) are plugged in, go to Step 5. If the P2 (mwo UI) to U3 (wide interface board) connectors are not connected, plug in the connectors and proceed to Step 8. If the P1 (wide interface board) to P10 (microwave appliance
manager) connectors are not connected, plug in the connectors and proceed to Step 8. If the P1 (wide interface board) to P10 (microwave appliance manager) are plugged in, go to Step 6. 5. Visually inspect all of the wires between P2 on the microwave user interface and U3 on the wide interface board. Make sure the wires are not cut or pinched. If the wires appear to be intact, perform a continuity check between P2-1 and U3-1 of the microwave user interface (mwo UI) to U3-2 (wide interface board), P2-4 (mwo UI) to U3-4 (wide interface board), and p2-5 (mwo UI) to U3-5 (wide interface board). All the measurements should be less than 5O. If any of these measurements exceed 5O, replace the wiring harness (signal). Ensure all connectors are properly inserted and go to Step 10. If the measurements are less than 5O, reconnect P2, and go to Step 6.
5. Visually inspect all of the wires between P2 on the microwave user interface and U3 on the wide interface board. Make sure the wires are not cut or pinched. If the wires appear to be intact, perform a continuity check between P2-1 and U3-1 of the microwave user
interface (mwo UI) to U3-2 (wide interface board), P2-4 (mwo UI) to U3-4 (wide interface board), and p2-5 (mwo UI) to U3-5 (wide
interface board). All the measurements should be less than 5O. If any of these measurements exceed 5O, replace the wiring harness
(signal). Ensure all connectors are properly inserted and go to Step 10. If the measurements are less than 5O, reconnect P2, and go to
Step 6.
6. Visually inspect all wires between P1 on the wide interface board and P10 on the microwave appliance manager. Make sure the wires are
not cut or pinched. If the wires appear to be intact, perform a continuity check between P1-1 on the wide interface board to P10-1 on the microwave appliance manager, continuing for P1-2 (wide interface board) to P10-2 (microwave appliance manager), P1-3 to P10-3, P1-4 to P10-4, P1-5 to P 10-5 and finally P1-6 to P10-6. All the measurements should be less than 5O. If any of these measurements exceeds 5O, go to Step 8. If the measurements are less than 5O, reconnect P1 and go to Step 7.
7. Replace the wide interface board. Ensure all connectors are properly seated inserted. Go to Step 10. If the wide interface board has
already been replaced and the error has not been corrected, proceed to Step 9.
8. Replace the wiring harness (between P1 and P10) and proceed to Step 10.
9. Replace the microwave appliance manager. Ensure all connectors are properly inserted. Go to Step 10.
10. Replace all parts and panels before operating.
11. Plug in microwave oven or reconnect power.
12. Observe for longer than 1 minute.
13. If the error does not appear, initiate a microwave cycle. Let the cycle run at least 1 minute. If no error occurs, cancel the cycle. The problem has been repaired. If the error occurs again, restart the troubleshooting procedure at Step 1 (except in Step 7, replace the microwave user interface board if the wide interface board and/or microwave appliance manager has already been replaced). If both are replaced the problem has been repaired.