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Error code reference

Maytag Dishwasher Error Code F6-E4

Float switch open

Maytag codesMaytag dishwasher codes
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What the F6-E4 error code actually means

Your Maytag dishwasher has detected that its overflow safety sensor is stuck in the tripped position, which can happen because something is blocking the sensor float, the dishwasher is not sitting level, there are too many suds, or water kept filling when it should have stopped. The dishwasher shuts down to prevent a flood. Clearing the blockage, leveling the unit, or reducing soap use often resolves the issue, but an internal electrical or valve problem may also be involved.

Diagnostic procedure

The full F6-E4 procedure

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1
First diagnostic step
Remove any items stuck under float. Verify that the float moves freely and you hear the click of the switch contacts. Check/adjust level of the dishwasher.
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Most common causes of F6-E4

Ranked by how often they cause this code
  1. 1Debris blocking the float assembly
  2. 2Dishwasher not level
  3. 3Excess suds
  4. 4Fill valve stuck open or shorted triac
  5. 5Blown fuse F9 on the control board

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Questions people ask about F6-E4

What does F6-E4 mean on a Maytag dishwasher?
F6-E4 indicates that the float switch, which is the overfill protection sensor at the bottom of the tub, is stuck in the open (tripped) position. The dishwasher reads this as an overfill condition and halts operation to prevent water damage. The cause can be physical, such as a blocked float or an unlevel unit, or electrical, such as a shorted fill valve triac or a blown fuse F9 on the control board.
Is it safe to use my dishwasher when it shows F6-E4?
No, you should not attempt to run the dishwasher while the F6-E4 code is active. The code indicates a potential overfill condition, and if the fill valve is mechanically stuck open or the triac is shorted, running the appliance could result in water overflowing onto your floor. Diagnose and resolve the fault before resuming normal use.
How much does it cost to repair a Maytag dishwasher with an F6-E4 error?
If the fix is as simple as removing debris from the float or adjusting the leveling legs, the repair costs nothing beyond your time. A replacement fill valve typically runs in the range of $25 to $75 for the part. A new control board is the most expensive scenario, often ranging from $100 to $250 or more for the part alone, with additional labor costs if you hire a technician.
How do I fix the F6-E4 error code on my Maytag dishwasher?
Start by removing the lower rack and checking the float assembly at the bottom of the tub for any objects blocking its movement. Confirm the float lifts freely and clicks when pressed. Next, check that the dishwasher is level and adjust the legs if needed. If excess suds are present, run a rinse-only cycle to clear them. If the error persists after those checks, the fill valve, the fill valve triac on the control board, or fuse F9 may need to be tested and replaced.
Will resetting the dishwasher clear the F6-E4 error?
A power reset by unplugging the dishwasher or tripping the circuit breaker for about one minute may temporarily clear the code, but it will return if the underlying problem is not corrected. If the float is blocked, the unit is not level, or a component like the fill valve or control board is faulty, the fault condition will be detected again as soon as the dishwasher attempts to fill.

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