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Error code reference

Maytag Microwave Error Code F6 E0

Oven user interface

Maytag codesMaytag microwave codes

Oven user interface - lost communication.

First step from the service manual

Check voltage at P6-1 to P6-2 on GOC AM board (13.7 VDC); check 120VAC at P8-1 to P7-1; check wiring continuity from GOC AM to UI board (P6-4 orange wire).

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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What F6 E0 means on a Maytag microwave

The F6 E0 error code on a Maytag microwave indicates a lost communication fault between the oven user interface (UI) board and the GOC AM (General Oven Control, Appliance Module) board. These two boards communicate continuously during operation, and when the GOC AM board stops receiving valid signals from the UI board, or vice versa, the control system logs this fault and typically locks out operation to prevent unsafe conditions.

The primary diagnostic path focuses on the power and signal infrastructure connecting these two boards. The GOC AM board must supply 13.7 VDC at connector pins P6-1 to P6-2 to power the UI board's communication circuit. If this voltage is absent or significantly out of range, the UI board cannot maintain the communication link. Separately, 120 VAC must be present at P8-1 to P7-1 on the GOC AM board, confirming the control board itself is receiving proper line voltage. If either of these voltage readings is incorrect, the fault source is upstream of the wiring harness.

If both voltage readings are confirmed correct, the next focus shifts to wiring integrity. The orange wire at pin P6-4 on the GOC AM board carries the communication signal to the UI board, and any break, corrosion, or loose terminal in this wire can sever the data link and trigger F6 E0. Physical damage to the harness connector, a failed UI board, or a failed GOC AM board are also possible causes if wiring continuity checks out normal.

Source: manufacturer service documentation.

Common causes of F6 E0

  1. 01

    Low or missing 13.7 VDC supply voltage

    Part replacement

    If the GOC AM board is not delivering 13.7 VDC at pins P6-1 to P6-2, the UI board loses power for its communication circuit. Measure voltage at these pins with a multimeter to confirm.

  2. 02

    Broken or loose P6-4 orange communication wire

    Wiring / connection

    The orange wire at pin P6-4 on the GOC AM connector carries the data signal to the UI board. A broken conductor, corroded terminal, or unseated connector plug will sever this link and trigger F6 E0.

  3. 03

    Missing 120 VAC input to GOC AM board

    Wiring / connection

    Without proper 120 VAC at pins P8-1 to P7-1 on the GOC AM board, the control board cannot function or supply downstream voltages. Check this reading before assuming the board itself has failed.

  4. 04

    Failed UI board

    Part replacement

    If all voltages and wiring check out correctly, the UI board itself may have an internal failure preventing it from communicating. This would require UI board replacement.

  5. 05

    Failed GOC AM control board

    Part replacement

    If input voltage is correct but the GOC AM board is not producing the required 13.7 VDC output or is not transmitting communication signals, the board itself may be defective and need replacement.

See the test procedure for each cause

Frequently asked questions about F6 E0

What does F6 E0 mean on a Maytag microwave?
F6 E0 indicates a lost communication fault between the oven user interface board and the GOC AM appliance control board. The two boards exchange signals continuously during operation, and when that link is broken the microwave logs this code and disables operation. The fault can stem from a wiring issue, a voltage supply problem, or a failed board on either end of the communication circuit.
Will resetting the microwave clear the F6 E0 error code?
A power reset by unplugging the microwave for one to two minutes may temporarily clear the code, but if the underlying cause is still present the error will return. A reset is useful for ruling out a one-time communication glitch, but persistent F6 E0 codes require hands-on diagnosis of voltages and wiring.
How do I fix the F6 E0 error on a Maytag microwave?
Start by verifying 120 VAC input at pins P8-1 to P7-1 on the GOC AM board, then check for 13.7 VDC at pins P6-1 to P6-2. Next, inspect the orange wire at P6-4 for continuity and look for damaged or unseated connectors in the wiring harness between the GOC AM and UI boards. If voltage and wiring are correct, the UI board or GOC AM board will need to be replaced.
Is it safe to use the microwave while it is showing F6 E0?
No. The F6 E0 fault means the control and display boards are not communicating properly, which can prevent the microwave from responding correctly to commands. Operating the appliance in this condition is not recommended, and the unit will typically lock out cooking functions until the fault is resolved.
How much does it cost to repair a Maytag microwave with an F6 E0 error?
Repair costs vary depending on the root cause. If the issue is a wiring harness repair or a reseated connector, costs are minimal and mostly involve labor time. A replacement UI board typically runs in the range of $50 to $150 for the part, while a GOC AM control board can range from $80 to $200 or more. Professional labor adds to these estimates depending on your location and service provider.

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