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Error code reference

Jenn-Air Dishwasher Error Code E:23

Drain pump fault; residual water in the pump sump as filters dirty; programme ends.

Jenn-Air codesJenn-Air dishwasher codes

Drain pump fault; residual water in the pump sump as filters dirty; programme ends.

First step from the service manual

Clean filters.

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

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What E:23 means on a Jenn-Air dishwasher

The E:23 error code on a Jenn-Air dishwasher signals a drain pump fault, specifically indicating that residual water remains in the pump sump at a point in the cycle when the sump should be clear. The dishwasher monitors drainage progress and triggers this fault when water fails to evacuate within the expected timeframe. When E:23 appears, the programme terminates early to prevent overflow or pump damage, leaving standing water in the tub.

The most frequent root cause is restricted flow through the filter assembly. Jenn-Air dishwashers use a multi-stage filter system at the base of the wash chamber that captures food particles and debris. When these filters become heavily loaded with grease, food solids, or mineral scale, water cannot pass through to the sump quickly enough for the drain pump to clear it. The pump may still be operating, but the restricted inlet starves it of flow, causing the residual water condition the control board detects.

Beyond clogged filters, the fault can also result from a kinked or obstructed drain hose, a blocked air gap or garbage disposal connection, a failed drain pump motor, or a faulty water level sensor that incorrectly reports standing water. Diagnosing the cause requires starting with the filters and working outward through the drain path before concluding that the pump or control components have failed.

Source: manufacturer service documentation.

Common causes of E:23

  1. 01

    Clogged or dirty filters

    Wiring / connection

    The filter assembly at the base of the tub is the leading cause of E:23. Built-up food debris, grease, and scale block water from reaching the sump, preventing the drain pump from clearing the tub. Remove, rinse, and gently scrub the filters under running water.

  2. 02

    Blocked or kinked drain hose

    Wiring / connection

    A drain hose that is kinked behind the unit, or partially blocked by debris at the hose end or connection point, restricts water flow out of the dishwasher. Inspect the full length of the hose and verify the connection to the sink drain or disposal is clear.

  3. 03

    Obstructed garbage disposal or air gap

    Wiring / connection

    If the drain hose connects to a garbage disposal, a clogged disposal or an un-knocked drain plug on a new disposal can block drainage entirely. An air gap mounted on the sink deck can also become clogged with debris, creating back pressure.

  4. 04

    Failed drain pump motor

    Part replacement

    If the filters and drain path are clear but water still remains in the sump, the drain pump motor itself may have failed mechanically or electrically. A seized impeller or a burned-out motor winding will prevent water from being expelled regardless of filter condition.

  5. 05

    Faulty water level sensor

    Part replacement

    A defective turbidity or water level sensor can misreport residual water in the sump even after drainage is complete, causing the control board to log E:23 incorrectly. This is the least common cause and should be considered only after all physical drain path components have been inspected and confirmed clear.

See the test procedure for each cause

Frequently asked questions about E:23

What does E:23 mean on a Jenn-Air dishwasher?
E:23 indicates a drain pump fault caused by residual water remaining in the pump sump. The dishwasher detected that water did not drain properly during the cycle and ended the programme early. The most common trigger is a dirty or clogged filter assembly that restricts water flow to the drain pump.
How do I fix the E:23 error on my Jenn-Air dishwasher?
Start by removing and cleaning the filters at the bottom of the wash tub, as clogged filters are the most frequent cause. After cleaning, check that the drain hose is not kinked and that the connection to the sink drain or garbage disposal is clear. If the error persists after addressing these items, the drain pump or water level sensor may need professional inspection.
Will resetting my Jenn-Air dishwasher clear the E:23 code?
A reset may clear the code temporarily, but if the underlying cause is not resolved, E:23 will return as soon as the drain cycle runs again. Address the clogged filter or drain obstruction first, then reset the unit by cancelling the cycle or switching the power off at the circuit breaker for one minute. Running a short cycle afterward will confirm whether the fault has been resolved.
Is it safe to use my Jenn-Air dishwasher when E:23 is showing?
The dishwasher is designed to stop the cycle when E:23 is detected, which helps prevent overflow. You should not attempt to run additional cycles until the drainage issue is resolved, as standing water in the sump can promote bacterial growth and may indicate a condition that could lead to a leak. Clear the fault and confirm proper drainage before resuming normal use.
How much does it cost to repair a Jenn-Air dishwasher showing E:23?
If the fix is simply cleaning the filters and clearing a drain obstruction, there is no parts cost involved. If the drain pump motor has failed, replacement parts and labor typically range from around 150 dollars to 350 dollars depending on your location and the service provider. A faulty water level sensor is generally a less expensive repair, often falling in the 100 dollar to 200 dollar range including labor.

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