KitchenAid Washer F8 Error: Water Level Sensor Fault
What Does KitchenAid Washer Error Code F8 Mean? F8 on a KitchenAid washer indicates a fault in the water level pressure sensor. The washer uses a pressure sensor connected to the tub via a small hose to measure water level — as water rises, air in the hose is compressed, and the sensor converts that […]
Quick Assessment
Answer to continue safely
Is it safe to keep using?
No. Without a valid water level reading, the washer can overfill or underfill, and neither condition is safe for the laundry or the surrounding area.
Can I reset the code?
Yes. Clearing a kinked or clogged hose resolves F8 without service. A failed sensor or board fault does not clear with reset.
When to stop immediately?
Stop if you notice: Water overflow has reached the floor, Water continues filling after power is cut.
Symptoms You May Notice
Washer overfills or underfills
Before the fault latches, the washer may have filled with too much or too little water for the selected cycle. Water level is obviously wrong for the load size.
Cycle halts during fill
The washer begins filling but stops with F8 on the display before reaching the correct level. The cycle cannot proceed.
Water continues filling after cycle selected
Rarely, a failed pressure sensor causes the fill valve to stay open indefinitely. The washer needs to be stopped manually to prevent overflow.
Possible Causes
Pressure sensor hose clogged or kinked
The small hose connecting the tub to the pressure sensor has become clogged with lint or kinked from years of flexing. Without proper pressure signal, the sensor cannot report water level.
DIY PossiblePressure sensor itself failed
The electronic pressure sensor has failed — typically after years of humid operating environment. Returns invalid readings regardless of actual water level.
Requires ProfessionalControl board sensor input circuit failure
The analog input on the main board that reads the pressure sensor has failed, producing invalid readings even with a good sensor installed.
Requires ProfessionalSafe Checks You Can Do
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1
Inspect the pressure sensor hose
Access the pressure sensor hose behind the control panel or at the top of the tub (model-dependent). Look for visible kinks, pinches, or blockages. The hose should be clear and run straight without sharp bends.
The pressure sensor hose is usually a thin clear tube. Any visible cloudiness, debris, or blockage confirms a hose problem.
Tools required -
2
Stop any active fill immediately
If water is still filling when F8 appears, turn off the water supply valves at the wall to stop the fill. This prevents overflow if the fill valve is not shutting off properly.
The hot and cold water valves at the wall behind the washer should always be accessible in case of emergency shutoff.
When to Call a Professional
Contact a qualified technician if:
- Pressure sensor replacement clears the fault
- Hose blockage requires disassembly to access
- Control board input tests bad with a known-good sensor
Need Professional Help?
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