How to resolve the F6 E0 error code on the built-in Kitchenaid microwave oven? The unit was brand new and installed 2 and half years ago in my new house. One website mentions the description for this error code as "return line is not connected. If switch pulse return line is not connected, electronic control will display F6 within 60 seconds after power up. Replace control." This explanation does not make sense to me. Any help to me for this problem will be greatly appreciated.

Here list of Kitchen Aid range and oven codes.


4 Digit Failure Codes

F1 - E0 EEPROM communication error
F1 - E1 EEPROM checksum error
F1 - E2 UL A/D error
F1 - E4 Model ID error
F1 - E5 Calibration shifted
F1 - E6 Latch signal mismatch error
F1 - E9 Stack overflow
F1 - E3 Wiring harness cavity size does not match stored value
F2 - E0 Shorted touch pad
F2 - E1 Keypad cable connection error
F2 - E5 Cancel key drive line open
F2 - E6 Cancel key drive line open
F3 - E0 Oven temperature sensor (RTD) opened (upper oven on double oven models)
F3 - E1 Oven temperature sensor (RTD) shorted (upper oven on double oven models)
F3 - E2 Oven temperature is too high (Cook mode)
F3 - E3 Oven temperature is too high (Clean mode)
F3 - E4 Oven temperature sensor (RTD) opened (lower oven on double oven models)
F3 - E5 Oven temperature sensor (RTD) shorted (lower oven on double oven models)
F3 - E6 Drawer sensor open
F3 - E7 Warming drawer sensor shorted
F4 - E1 Meat probe malfunction - shorted
F5 - E0 Door Switch
F5 - E1 Self clean latch will not lock
F5 - E2 Latch during CLEAN error
F5 - E5 Self clean temperature not reached within 45 minutes.
F5 - E6 Door is open, but latch is locked
F5 - E7 Self clean latch will not unlock
F6 - E0 Return line not connected
F7 - E1 Common switch wire defective

Two digit codes:

F0 ERC Board failure
F1 ERC Board failure
F2 Oven temperature is too high
F3 Oven temperature sensor open
F4 Oven temperature sensor shorted
F5 ERC Board failure
F7 Function key stuck on ERC
F8 ERC Board failure
F9 Oven door lock failure

Microwave and Microwave combo error codes:

F1 - E3 or F1 - E4 Electronic control malfunction

F2 - E0 or F2 - E1 Keypad connection error

F2 - E3 Keypad held down too long, or keypad is shorted.

If you get an error code, try first resetting the code:
1. Disconnect power for about two minutes.
2. Connect back power.
3. If code re-appears, test and eventually replace faulty part.

Regards.