KitchenAid F8 — F8 is a water level sensor failure on KitchenAid washers, often from a clogged or kinked pressure hose.

This guide explains the Kitchenaid Washer F8 Error: what it means, what causes it, and how to resolve it safely.

Understanding the Kitchenaid Washer F8 Error

Below, our specialists break down everything you need to know about the Kitchenaid Washer F8 Error.

Understanding the Kitchenaid F8 Error

Below, our specialists break down everything you need to know about the Kitchenaid F8 Error.

What F8 means on your KitchenAid washer

F8 tells you that the water level pressure sensor on a KitchenAid washer isn’t giving the control board a reading it can trust. This sensor is how the board figures out how much water is actually in the tub at any given moment, and without a valid signal, the board has no safe way to decide how much more water to add or when to stop filling. Rather than guess, it halts the cycle and shows the problem. A KitchenAid F8 error can stem from something as simple as a pinched hose or something as involved as a failed sensor, which is why it’s worth checking the easy possibilities first.

What makes this code relatively approachable compared to some others is that the sensor itself connects to the tub through a small physical hose rather than communicating purely electronically, and that hose is something a homeowner can actually inspect. Lint buildup and kinking in that line account for a meaningful share of F8 occurrences, and clearing it is well within reach without any special tools.

Symptoms

• F8 appears on the display, sometimes while the washer is actively filling
• The washer may overfill or underfill before the problem triggers
• Water continues running into the tub longer than expected before the code appears
• The cycle stops mid-fill rather than proceeding to wash
• The problem may appear inconsistently, sometimes clearing on its own for a cycle or two

Common causes

• The small hose connecting the tub to the pressure sensor has become clogged with lint or kinked from years of movement and flexing, cutting off the pressure signal the sensor needs to work.
• The pressure sensor itself has failed electronically, typically after prolonged exposure to a humid operating environment, and now returns invalid readings no matter what the actual water level is.
• The analog input circuit on the main control board that interprets the sensor’s signal has failed, producing bad readings even when a perfectly good sensor is installed.

Troubleshooting steps you can try

1. If water is actively filling when F8 appears, shut off the water supply valves at the wall right away to stop the fill and prevent any risk of overflow if the fill valve isn’t closing properly on its own.
2. Once the washer is safely powered down or unplugged, locate the pressure sensor hose — depending on the model, this is either behind the control panel or near the top of the tub.
3. Examine the hose closely for visible kinks, pinches, or cloudy buildup inside the tubing; it should be a clear, straight run without sharp bends.
4. If you find debris or a kink, gently straighten the hose or clear the obstruction, taking care not to crimp it further while reinstalling.
5. Restore power and water supply, then run a short cycle to see whether the fill completes normally without the problem reappearing.
6. If the hose looks clean and unobstructed but the problem persists, avoid attempting to open or test the sensor itself without proper equipment — that’s a job better suited to a technician.

When to call a technician

Bring in a specialist for your washer if any of the following apply:

If these checks do not clear the F8 code on your washer, the problem likely sits in a component that needs a specialist. Book a KitchenAid repair online, browse related error codes, or see product details at kitchenaid.com.