Amana Dishwasher Error Code F6 E4 — Float Switch / Overfill Error
What this means
Error code F6 E4 indicates the dishwasher's overfill float switch has been triggered. This safety device activates when water rises above the normal level, or when the dishwasher is not properly leveled, causing the float to activate prematurely. The dishwasher initiates a drain cycle and stops operation.
Alternate codes: F6E4
Step-by-step fix
4 stepsCheck dishwasher level
Place a level on the dishwasher's tub rim from front to back and side to side. The dishwasher must be level for the float switch to function correctly.
An out-of-level dishwasher can cause water to pool on one side and trigger the float switch.
Adjust the leveling legs
Use an adjustable wrench to turn the leveling legs at the bottom front of the dishwasher until the unit is level.
Most dishwashers also have rear leveling legs or a rear leveling mechanism accessible from the front.
Inspect the float assembly
Open the dishwasher and locate the float assembly in the front corner of the tub floor. Lift it up and down — it should move freely.
Food debris or utensils that have fallen through the rack can jam the float in the raised position.
Check the float switch
If the float moves freely, check the float switch underneath (accessible from below the dishwasher). Test it with a multimeter for proper continuity.
The float switch should be open when the float is raised and closed when the float is down.
When to call a professional
If the float, switch, and leveling are all correct but the error persists, there may be a water inlet valve that's not shutting off properly.
Information compiled from manufacturer service manuals, official troubleshooting documentation, and appliance repair industry resources. This guide is for informational purposes only — always consult a qualified technician for complex repairs.
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