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Error code reference

Maytag Washer Error Code F4

Board failure in the level circuit; microprocessor board is inoperable.

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What the F4 error code actually means

The F4 code means your washer's main control board has stopped working properly, specifically in the part that monitors the water level inside the tub. The board is the brain of the machine, and when it fails, the washer cannot complete a wash cycle. Replacing the control board is the fix for this error.

Diagnostic procedure

The full F4 procedure

Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.

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1
First diagnostic step
Replace microprocessor 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 F4

Ranked by how often they cause this code
  1. 1Microprocessor board internal failure
  2. 2Power surge damage to the control board
  3. 3Loose or corroded board wiring harness connection
  4. 4Moisture or water intrusion on the board

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Questions people ask about F4

What does F4 mean on a Maytag washer?
F4 indicates a board failure in the level circuit, meaning the microprocessor board is inoperable. The level circuit is responsible for monitoring the water level inside the tub, and when the board fails in this area, the washer cannot function. The recommended repair is replacing the microprocessor board.
Is it safe to use my Maytag washer with an F4 error code showing?
No, you should not attempt to run the washer while F4 is active. Because the microprocessor board is inoperable, the machine cannot properly control the wash cycle or monitor water levels, which could lead to overfilling or other unsafe conditions. Stop using the washer until the board has been replaced.
Will resetting my Maytag washer clear the F4 error code?
A power reset by unplugging the washer for a few minutes may temporarily clear the code, but if the microprocessor board has genuinely failed, the F4 error will return when the washer is powered back on. Resetting is a useful first diagnostic step, but it is not a solution to an inoperable board.
Can I fix the F4 error on my Maytag washer myself?
A knowledgeable DIYer can attempt this repair by locating and replacing the microprocessor board. Before ordering parts, check that all wiring harness connectors at the board are secure and free of corrosion. If connections are solid and the error returns after a power reset, the board itself needs to be replaced.
How much does it cost to fix an F4 error on a Maytag washer?
Repair costs depend on parts and labor. A replacement microprocessor board typically costs anywhere from $80 to $250 or more depending on the specific model. If you hire a technician, expect to add $75 to $150 in labor costs on top of the part price.

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