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Error code reference

KitchenAid Washer Error Code FH

No water detected entering machine or pressure switch trip not detected after water valves have been on for 8…

KitchenAid codesKitchenAid washer codes

No water detected entering machine or pressure switch trip not detected after water valves have been on for 8 minutes with 10.5 gallons passing through flow sensor.

First step from the service manual

If no water in unit, make sure both valves at the water source are turned on all the way; check for plugged or kinked inlet hoses or plugged screens in the inlet valves.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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What FH means on a KitchenAid washer

The FH error code on a KitchenAid washer indicates that the control board detected either no water entering the machine or that the pressure switch did not trip within the expected timeframe. Specifically, the code triggers when the water inlet valves have been open for 8 minutes and approximately 10.5 gallons have passed through the flow meter sensor without the pressure switch registering a sufficient water level inside the drum. The system relies on two separate sensing methods working in agreement: the flow meter counting water volume and the pressure switch confirming water accumulation in the tub.

The most frequent causes are supply-side issues rather than internal component failures. Closed or partially open water supply valves at the wall, kinked inlet hoses, and clogged inlet valve screens are the first areas to inspect. Hard water deposits and debris commonly restrict the small mesh screens where the hoses connect to the inlet valve body, significantly reducing flow rate. If both hot and cold supply lines are restricted, the machine may allow time to elapse without reaching the required volume or pressure threshold.

If supply-side conditions check out, the fault may lie with the water inlet valve assembly itself, the flow meter sensor, or the pressure switch and its connecting hose. A failed inlet valve solenoid may not open fully even when energized. A faulty or stuck flow meter can misreport volume. A clogged or disconnected pressure switch hose can prevent the switch from tripping even when adequate water is present. Diagnosing these components typically requires verifying valve operation and checking pressure switch continuity.

Source: manufacturer service documentation.

Common causes of FH

  1. 01

    Closed or partially open supply valves

    Wiring / connection

    The hot and cold shutoff valves behind the washer may not be fully open, severely limiting water flow. Check that both valves are turned completely counterclockwise to the open position.

  2. 02

    Kinked or blocked inlet hoses

    Wiring / connection

    The fill hoses running from the wall valves to the washer can kink behind the machine, restricting water flow significantly. Pull the washer out and visually inspect both hoses along their full length.

  3. 03

    Clogged inlet valve screens

    Wiring / connection

    Small mesh screens at the inlet valve connections filter debris from the water supply and can become blocked with sediment or mineral buildup over time. Remove the inlet hoses and inspect the screens for clogs; they can often be cleaned with a soft brush.

  4. 04

    Failed water inlet valve assembly

    Part replacement

    The solenoid-operated inlet valve may fail to open fully or at all when energized by the control board. If the supply lines and screens are clear but water flow is still restricted or absent, the inlet valve assembly likely needs replacement.

  5. 05

    Faulty flow meter or pressure switch

    Part replacement

    The flow meter sensor counts water volume passing into the machine, and the pressure switch confirms the water level in the tub. If either component malfunctions or the pressure switch hose is clogged or disconnected, the control board will not receive the confirmation it needs and will trigger the FH code.

See the test procedure for each cause

Frequently asked questions about FH

What does FH mean on a KitchenAid washer?
The FH code means the washer did not detect water entering the machine or the pressure switch did not trip after the inlet valves were open for 8 minutes and roughly 10.5 gallons passed through the flow meter. The washer expects both the flow sensor and the pressure switch to confirm that water is filling the tub. When that confirmation does not arrive in time, the machine stops and displays FH to alert you to a water supply or sensing problem.
How do I fix the FH error code on my KitchenAid washer?
Start by checking that both hot and cold water supply valves behind the washer are fully open. Then inspect the inlet hoses for kinks and remove them to check the small filter screens inside the inlet valve connections for clogs. If the supply side looks good, the inlet valve assembly, flow meter, or pressure switch may need to be tested and possibly replaced.
Will resetting my KitchenAid washer clear the FH error code?
Resetting the washer may clear the code temporarily, but it will return if the underlying cause is not corrected. The control board triggers FH based on a real-time failure condition detected during the fill cycle, so the code will reappear on the next wash cycle if the water supply issue or faulty component is not addressed first.
Is it safe to use my KitchenAid washer when it shows an FH code?
You should not attempt to run a wash cycle while the FH code is active. The washer stops the cycle specifically because it cannot confirm that adequate water is present, and running the machine without proper water levels can stress the motor, pump, and other components. Resolve the water supply or sensor issue before using the washer again.
How much does it cost to repair a KitchenAid washer FH error code?
If the fix is as simple as opening a supply valve, cleaning hose screens, or straightening a kinked hose, there is no parts cost. If the water inlet valve assembly needs replacement, parts typically range from $30 to $80 depending on the model. A flow meter or pressure switch replacement generally falls in a similar range, and adding professional labor can bring the total repair cost to $100 to $250 or more.

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