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Error code reference

Jenn-Air Dishwasher Error Code E:14

No impulses from flow sensor although water is detected by heat pump; programme stops with draining.

Jenn-Air codesJenn-Air dishwasher codes

No impulses from flow sensor although water is detected by heat pump; programme stops with draining.

First step from the service manual

Check wires; test flow sensor (reed switch).

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

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What E:14 means on a Jenn-Air dishwasher

The E:14 error code on a Jenn-Air dishwasher indicates that the control system is receiving no impulse signals from the flow sensor, even though water presence has been confirmed by the heat pump circuit. The flow sensor operates as a reed switch, a type of magnetic contact switch that opens and closes as water flows through the system and triggers a rotating magnet or paddle. Under normal operation, the flow of water generates a series of electrical pulses that the control board reads to verify water movement through the wash circuit. When those pulses are absent while the heat pump still detects water, the control interprets this as a failure in the flow monitoring system and halts the programme, then initiates a drain cycle to protect internal components.

The most likely causes involve either a wiring fault between the flow sensor and the control board or a failed reed switch within the sensor itself. Wiring issues can include broken conductors, corroded terminals, or loose connectors that interrupt the low-voltage signal the sensor sends back to the control. The reed switch itself can fail mechanically if the switch contacts become stuck, corroded, or damaged, preventing it from toggling even when water is flowing normally.

Because the heat pump circuit is still detecting water when this code appears, the fault is isolated to the flow sensing portion of the circuit rather than a complete water supply failure. Diagnosis should begin with a visual and continuity check of the wiring harness running to the flow sensor, followed by direct testing of the reed switch for correct operation. If the wiring checks out and the sensor itself is non-functional, sensor replacement is the standard resolution.

Source: manufacturer service documentation.

Common causes of E:14

  1. 01

    Failed flow sensor reed switch

    Part replacement

    The reed switch inside the flow sensor may have stuck contacts or corroded internals, preventing it from generating pulses even when water is flowing. Testing the switch directly for continuity toggling during water flow will confirm this failure.

  2. 02

    Loose or disconnected wiring connector

    Wiring / connection

    The connector linking the flow sensor to the control harness can vibrate loose over time, breaking the signal circuit. Inspect the connector at the sensor end and at the harness junction for secure seating.

  3. 03

    Damaged or broken wiring in the harness

    Part replacement

    A wire in the flow sensor circuit may have a break, pinch, or corrosion point that interrupts the low-voltage pulse signal. A continuity test along the full length of the wire from sensor to control board will identify this fault.

  4. 04

    Corroded sensor terminals

    Wiring / connection

    Moisture exposure can cause oxidation at the sensor terminals, increasing resistance to the point where the signal is too weak to register at the control board. Cleaning the terminals or replacing the connector pigtail may resolve this.

  5. 05

    Obstructed flow sensor mechanism

    Wiring / connection

    Debris or mineral scale can restrict the internal paddle or magnet that triggers the reed switch, preventing it from rotating freely and generating pulses. Inspecting and cleaning the sensor housing may restore proper function.

See the test procedure for each cause

Frequently asked questions about E:14

What does E:14 mean on a Jenn-Air dishwasher?
E:14 means the control board is receiving no pulse signals from the flow sensor even though the heat pump circuit has detected water inside the machine. The flow sensor uses a reed switch to generate impulses that confirm water is moving through the system. When those impulses are absent, the dishwasher stops the current programme and drains as a safety measure. The fault points to either the flow sensor itself or the wiring connecting it to the control board.
How do I fix the E:14 error on my Jenn-Air dishwasher?
Start by inspecting the wiring harness and connectors leading to the flow sensor for any loose, corroded, or broken connections and reseat or repair as needed. Next, test the flow sensor reed switch directly using a multimeter to check whether the switch toggles when water flows across it. If the wiring is intact and the sensor does not respond correctly, replacing the flow sensor is the standard repair. Cleaning any debris or scale buildup around the sensor mechanism is also worth attempting before committing to a part replacement.
Is it safe to keep using my dishwasher when E:14 appears?
The dishwasher stops the cycle and drains automatically when E:14 is triggered, so it is not actively running in a compromised state. However, the underlying fault means the machine cannot reliably monitor water flow, and continued attempts to run cycles without resolving the issue are not recommended. It is best to diagnose and repair the fault before using the appliance again to avoid potential issues with wash performance or water management.
Will resetting the dishwasher clear the E:14 error?
A reset may temporarily clear the error code and allow the dishwasher to attempt another cycle, but if the flow sensor or its wiring is genuinely faulty the code will return once the control board fails to detect impulses again. Resetting is useful as a first step to rule out a one-time glitch, but a persistent E:14 code requires physical diagnosis and repair of the sensor circuit to resolve it permanently.
How much does it cost to repair a Jenn-Air dishwasher E:14 error?
If the fix is simply reseating a loose connector or cleaning corroded terminals, there may be no parts cost involved, with any expense limited to a service call if you use a technician. If the flow sensor reed switch needs replacement, parts typically range from around $20 to $60 depending on the specific component, with professional labor adding $75 to $150 or more depending on your location. A full repair including parts and labor for a sensor replacement generally falls in the range of $100 to $200.

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