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Error code reference

Thermador Range Error Code E:14

WFMC washer

Thermador codesThermador range codes

WFMC washer: Water supply time exceeded (faulty inlet valve, wire harness, hose).

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What E:14 means on a Thermador range

The E:14 error code on a Thermador WFMC washer indicates that the water supply time has been exceeded. This means the control board detected that the machine took too long to reach the required water level during a fill cycle. The appliance monitors how long the inlet valve stays open and, if water does not accumulate to the target level within the expected time window, the control triggers this fault to prevent overfilling, prolonged operation, or potential flood conditions.

The most common hardware involved in this fault includes the water inlet valve assembly, the wiring harness connecting the valve to the control board, and the inlet hoses running from the household supply lines. A faulty inlet valve that is partially clogged, mechanically stuck, or electrically failing will restrict water flow and cause the timed fill cycle to expire. Similarly, a kinked or blocked inlet hose reduces flow rate below what the control board expects, triggering the same timeout condition.

The wiring harness is also a suspect when this code appears. Broken, corroded, or loose connections between the control board and the inlet valve solenoids can prevent the valve from opening fully or at all. Before replacing the valve itself, technicians should verify that the solenoid coils are receiving the correct voltage and that resistance readings across the coil terminals fall within the expected range. Low household water pressure can also contribute to this fault, so supply pressure should be confirmed before assuming a component failure.

Source: manufacturer service documentation.

Common causes of E:14

  1. 01

    Faulty water inlet valve

    Part replacement

    The inlet valve solenoid may be clogged with sediment or failing electrically, restricting water flow to the point where the fill cycle times out. Inspect the valve screens for debris and test the solenoid coils for proper resistance.

  2. 02

    Kinked or blocked inlet hose

    Wiring / connection

    A bent, kinked, or partially blocked supply hose reduces water flow rate significantly. Inspect both hot and cold inlet hoses along their full length and confirm they are not crimped at the wall connection or behind the machine.

  3. 03

    Damaged or corroded wiring harness

    Part replacement

    Broken or corroded wiring between the control board and the inlet valve solenoids can prevent the valve from receiving proper voltage to open fully. Inspect connector terminals for corrosion, cracking, or loose pins.

  4. 04

    Low household water supply pressure

    Wiring / connection

    If the home water pressure is too low, the washer cannot fill at the rate the control expects and the timeout will trigger. Verify supply pressure at the connection point and rule out partially closed shutoff valves.

  5. 05

    Clogged inlet valve filter screens

    Wiring / connection

    Small mesh screens at the inlet valve connection points can accumulate mineral deposits and debris over time, restricting flow. These screens can often be removed and cleaned without replacing the full valve assembly.

See the test procedure for each cause

Frequently asked questions about E:14

What does E:14 mean on a Thermador range?
The E:14 code on a Thermador WFMC washer indicates that the water supply fill time was exceeded during a cycle. The control board determined that water did not reach the required level within the expected time window. This fault points to a problem with the water inlet valve, supply hoses, wiring harness, or household water pressure.
Can I fix the E:14 error myself on a Thermador washer?
Some causes of E:14 are DIY-friendly, such as straightening a kinked hose, opening a partially closed water shutoff valve, or cleaning the filter screens on the inlet valve. If the inlet valve solenoid itself has failed or the wiring harness is damaged, those repairs require more technical skill and possibly replacement parts. Always disconnect power before inspecting internal components.
Is it safe to keep using my washer when E:14 is displayed?
You should not continue running wash cycles while this code is active. The washer is unable to fill correctly, which means cycles will not complete properly and clothing may not be cleaned. Continued attempts to run cycles with a restricted fill can put unnecessary strain on the pump and control board over time.
How much does it cost to repair the E:14 error on a Thermador washer?
Repair costs vary depending on the failed component. Cleaning inlet valve screens or adjusting hoses costs little to nothing if done as a DIY repair. Replacing a water inlet valve typically runs between $80 and $200 in parts, with professional labor adding $100 to $250 depending on your location. Wiring harness repairs can fall in a similar or higher range depending on the extent of the damage.
Will resetting the washer clear the E:14 error code?
A power reset may temporarily clear the E:14 code from the display, but the fault will return if the underlying problem is not corrected. If the inlet valve is clogged, faulty, or not receiving proper voltage, the control board will detect the same fill timeout on the next cycle and trigger the code again. A reset is useful only as a first step to confirm whether the issue is intermittent or persistent.

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