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Error code reference

Maytag Microwave Error Code F6

Internal H.V./L.V

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What the F6 error code actually means

The F6 code means a key internal circuit board inside your microwave has stopped working correctly. This board controls both the high-power cooking circuits and the lower-power electronics that run the controls. The microwave will not function normally until this board is replaced by a qualified technician.

Diagnostic procedure

The full F6 procedure

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MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Replace H.V. / L.V. Board
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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Most common causes of F6

Ranked by how often they cause this code
  1. 1Failed H.V./L.V. board components
  2. 2Power surge or voltage spike
  3. 3Overheating due to poor ventilation
  4. 4Moisture or contamination on the board

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Questions people ask about F6

What does F6 mean on a Maytag microwave?
The F6 code on a Maytag microwave indicates an internal failure in the high-voltage and low-voltage (H.V./L.V.) board. This board manages both the high-power circuits that drive the magnetron and the low-voltage circuits that control the display and electronics. The microwave will not operate normally until this fault is addressed. The recommended corrective action is replacement of the H.V./L.V. board.
Is it safe to use my Maytag microwave when it shows F6?
No, you should not continue to use the microwave while it displays the F6 error. The fault indicates a failure in the board that controls both the high-voltage cooking circuit and the low-voltage control systems. Operating the unit in this state could pose a safety risk and may cause further damage to other components.
How much does it cost to repair a Maytag microwave with an F6 error?
Repair costs will vary depending on the specific model and whether you hire a technician or source the part yourself. Replacement H.V./L.V. boards typically range in price depending on the model, and professional labor adds to the total cost. In some cases, particularly with older units, the cost of repair may approach or exceed the value of the microwave, making replacement worth considering.
Can I fix the F6 error on my Maytag microwave myself?
Replacing the H.V./L.V. board is the prescribed repair for this error code. This task requires disconnecting the unit from power and working inside a microwave, which retains dangerous high-voltage charge in its capacitors even after being unplugged. Unless you have experience safely discharging microwave capacitors and handling high-voltage components, this repair is best left to a qualified appliance technician.
Will resetting my Maytag microwave clear the F6 code?
A simple power reset by unplugging the unit or turning off the circuit breaker will not permanently clear the F6 code if the H.V./L.V. board has genuinely failed. The code may disappear briefly after a reset, but it will return once the microwave attempts to operate and the board fault is detected again. The underlying board must be replaced to resolve the error.

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