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Error code reference

Jenn-Air Dishwasher Error Code E:24

Drain pump fault; resistance values of drain pump wrong; programme ends.

Jenn-Air codesJenn-Air dishwasher codes

Drain pump fault; resistance values of drain pump wrong; programme ends.

First step from the service manual

Check wires/plugs; measure resistance values of windings; check non-return valve for leaks.

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

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What E:24 means on a Jenn-Air dishwasher

The E:24 error code on a Jenn-Air dishwasher indicates a drain pump fault. Specifically, the control board has detected that the electrical resistance values of the drain pump motor windings fall outside the acceptable range. When this fault is triggered, the dishwasher will end the active programme rather than continue operating, preventing potential water damage or motor burnout from running a compromised pump.

The drain pump is responsible for expelling water from the tub at the end of wash and rinse cycles. Its motor windings must maintain specific resistance values to draw the correct current and operate reliably. If the windings are shorted, open-circuited, or degraded, the measured resistance will deviate from the expected range and trigger E:24. Wiring harness issues, including damaged insulation, corroded terminals, or loose plugs between the control board and the pump, can also produce incorrect resistance readings at the control board even when the pump motor itself is intact.

Another contributing factor to E:24 is a faulty or obstructed non-return valve, also called a check valve, located in the drain line. If this valve leaks or fails to seat properly, water can flow back into the sump, causing the pump to work against backpressure or run continuously, which may stress the motor windings over time. Diagnosing this code requires inspecting all wiring and connectors first, then measuring the actual winding resistance of the drain pump with a multimeter, and finally inspecting the non-return valve for leaks or debris.

Source: manufacturer service documentation.

Common causes of E:24

  1. 01

    Drain pump motor winding failure

    Part replacement

    The internal windings of the drain pump motor can short or open due to age, heat, or moisture intrusion, causing resistance readings outside the accepted range. Measuring the pump terminals with a multimeter will reveal a reading that is either near zero ohms (shorted) or infinite ohms (open circuit).

  2. 02

    Damaged or corroded wiring and connectors

    Wiring / connection

    Corroded terminals, cracked wire insulation, or loose plugs between the control board and the drain pump can produce inaccurate resistance readings at the board. Visually inspect the full wiring harness and reseat all connectors before condemning the pump itself.

  3. 03

    Faulty non-return valve

    Part replacement

    A leaking or debris-blocked non-return valve allows drained water to flow back into the sump, creating backpressure that can stress the pump motor and cause it to overheat. Inspect the valve for cracks, blockages, or failure to seat correctly.

  4. 04

    Blocked drain pump impeller

    Wiring / connection

    Broken glass, food debris, or foreign objects can jam the pump impeller, causing the motor to stall and draw abnormal current that affects resistance readings at the control board. Accessing the pump housing and clearing any obstruction is the first physical check to perform.

  5. 05

    Control board fault

    Part replacement

    If the wiring, pump windings, and non-return valve all test within normal parameters, the control board itself may be misreading the pump circuit. This is the least common cause and should only be considered after all other components have been ruled out.

See the test procedure for each cause

Frequently asked questions about E:24

What does E:24 mean on a Jenn-Air dishwasher?
E:24 indicates a drain pump fault where the resistance values of the drain pump motor windings have been measured as incorrect by the control board. The dishwasher ends the running programme automatically when this code is detected. The fault can originate from the pump motor itself, the wiring harness, or the non-return valve in the drain line.
How do I fix E:24 on my Jenn-Air dishwasher?
Start by inspecting all wiring and connectors between the control board and the drain pump for corrosion, damage, or loose plugs. Next, use a multimeter to measure the resistance across the drain pump motor windings and compare the reading to the expected value. Also check the non-return valve for leaks or blockages. If the pump windings test out of range, the pump motor will need to be replaced.
Is it safe to use my Jenn-Air dishwasher when E:24 is displayed?
No, it is not advisable to continue using the dishwasher while E:24 is active. The appliance ends the programme automatically for a reason: running a faulty drain pump can lead to water not being expelled properly, potential motor burnout, or water damage inside the unit. The fault should be diagnosed and resolved before running another cycle.
Will resetting my Jenn-Air dishwasher clear the E:24 error?
A reset may temporarily clear the code from the display, but the error will return if the underlying fault is not corrected. Because E:24 is triggered by an out-of-range resistance condition in the drain pump circuit, the physical cause must be identified and repaired. Resetting without fixing the root issue will result in the same fault code appearing again, typically during the next drain cycle.
How much does it cost to repair a Jenn-Air dishwasher with an E:24 error?
Repair costs vary depending on the root cause. If the fix is limited to cleaning a blocked impeller or reseating a connector, costs may be minimal aside from a service call fee, typically in the range of $75 to $150. Replacing the drain pump motor can cost between $150 and $350 including parts and labor. A control board replacement, if required, generally falls in the $200 to $450 range depending on parts availability and local labor rates.

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