KitchenAid Built-In Microwave Code F6 E3: Appliance manager and converter control

What F6 E3 means

On KitchenAid built-in microwaves and combination microwave-wall ovens, for example the KMBP100ESS or KOCE500ESS, F6 E3 points to the appliance manager control, the converter control, or the wiring between them. These boards coordinate the microwave functions, so a problem is serious. The display shows F6 E3 and the cooking functions stop. The code is shared by both single built-in microwaves and combination units that mirror the same table.

Common causes of F6 E3

Appliance manager control that is not communicating
Converter control that has stopped working
Wiring between the two controls that has come loose

✓ One safe check you can try

1. Press Cancel and note what the display shows. 2. Turn the breaker for the unit off for one minute and restore it. 3. Do not run repeated cycles if the code returns right away. 4. Leave the microwave off and call us for a diagnostic visit.

! Why to stop there

Both boards carry mains voltage and sit behind built-in trim.
A converter and a manager look alike on a parts list but not on the bench; we test before ordering.
You approve a written price first, and the repair is covered by a 30-day workmanship warranty.

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

→Same appliance

Other Microwave codes

Probe or Insert ProbeKitchenAid Combination Microwave Message "Probe" or "Insert Probe": Seat the meat probe in its jack PUSH or PSHKitchenAid Built-In Microwave Message PUSH or PSH: The oven is waiting for Start Registration ErrorKitchenAid Over-the-Range Microwave Message "Registration Error": Check the home network and try again Sabbath, Sab, 5Ab, or 5A6KitchenAid Built-In Microwave Display Sabbath, Sab, 5Ab or 5A6: Sabbath Mode is on SEKitchenAid Over-the-Range Microwave Code SE: Keypad or user interface problem F4 E5KitchenAid Combination Microwave Code F4 E5: Weight sensor in the microwave cavity F8 E5KitchenAid Built-In Microwave Code F8 E5: Fan air temperature sensor reading lost Locked, Lock or LocKitchenAid Built-In Microwave Message Locked, Lock or Loc: Unlock the control and door

F6 E3F6 E3 questions

Can F6 E3 be treated like F6 E7?

Not quite. E7 names the microwave appliance manager on combination wall ovens. F6 E3 includes the converter control as well, so more circuits are in play.

Can a reset repair it?

Only if the code was a one-time glitch. If it returns at once, the controls or wiring need testing by a technician. If it returns immediately, the controls or wiring need testing by a technician with proper tools.

Do both the microwave and oven stop?

It depends on the model. Treat the whole appliance as suspect, and keep it off until we diagnose it. On combination ovens, tell us whether the lower oven also acts oddly so we can plan the visit.