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Error code reference

Jenn-Air Dishwasher Error Code E:13

NTC resistance values outside permitted range; appliance operates without auxiliary drying system.

Jenn-Air codesJenn-Air dishwasher codes

NTC resistance values outside permitted range; appliance operates without auxiliary drying system.

First step from the service manual

Measure NTCs.

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

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  • Wiring diagram references and connector pinouts from the OEM service manual
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What E:13 means on a Jenn-Air dishwasher

The E:13 error code on a Jenn-Air dishwasher indicates that one or more NTC (Negative Temperature Coefficient) thermistor resistance values have fallen outside the permitted operating range. NTC thermistors are temperature-sensing components whose electrical resistance decreases predictably as temperature rises. The control board monitors these resistance readings continuously to regulate wash temperatures and coordinate the auxiliary drying system. When the measured resistance falls too high or too low relative to the expected range for a given temperature, the board logs E:13 and disables the auxiliary drying function as a protective measure.

The auxiliary drying system relies on accurate temperature data from the NTC sensors to operate safely and efficiently. Without confirmed, in-range readings, the dishwasher continues to run its standard wash and rinse cycles but will not activate the supplemental drying components. This means dishes may come out wetter than expected, but the appliance is not considered unsafe to operate in this degraded mode.

Diagnosis begins with directly measuring the resistance of the NTC sensors using a multimeter. A failed or drifting thermistor will show resistance readings that do not correspond to the expected values for the ambient or operating temperature. Wiring faults between the NTC and the control board, including open circuits, short circuits, or corroded connector pins, can also produce out-of-range readings even when the thermistor itself is functional. Both the sensors and their associated wiring harnesses should be inspected carefully.

Source: manufacturer service documentation.

Common causes of E:13

  1. 01

    Failed NTC thermistor

    Part replacement

    The thermistor itself has degraded or failed, producing resistance values outside the acceptable range for a given temperature. Measuring the sensor directly with a multimeter will reveal readings that do not align with the expected resistance-to-temperature curve.

  2. 02

    Corroded or loose wiring connector

    Wiring / connection

    Moisture inside the dishwasher can corrode the connector pins linking the NTC sensor to the control board, introducing unwanted resistance or an intermittent open circuit. Inspect the connectors at both the sensor and board ends for corrosion, looseness, or pushed-back terminals.

  3. 03

    Damaged wiring harness

    Part replacement

    The wiring between the NTC sensor and the control board may have been pinched, chafed, or partially severed during previous service or assembly. A continuity check along the harness will reveal any open or short circuit conditions.

  4. 04

    Control board fault

    Part replacement

    If the NTC sensor and all associated wiring test within acceptable parameters, the control board's input circuit for the thermistor signal may have failed. This is the least common cause and should only be considered after all sensors and wiring are confirmed good.

See the test procedure for each cause

Frequently asked questions about E:13

What does E:13 mean on a Jenn-Air dishwasher?
E:13 means the dishwasher's control board has detected that one or more NTC thermistor resistance readings are outside the permitted range. The NTC thermistors are temperature sensors that the appliance uses to regulate wash cycles and control the auxiliary drying system. When this fault is active, the dishwasher disables the auxiliary drying function but continues to run standard wash and rinse cycles. The underlying cause is typically a faulty thermistor, damaged wiring, or a corroded connector.
Will resetting the dishwasher clear the E:13 error code?
A reset may temporarily clear the E:13 code from the display, but if the underlying sensor or wiring fault is still present, the code will return once the control board takes another out-of-range reading. A reset is a useful first step to confirm whether the fault is intermittent, but it does not repair the failed component. Proper diagnosis with a multimeter is required to resolve the error permanently.
How do I fix the E:13 error on my Jenn-Air dishwasher?
Start by measuring the resistance of each NTC thermistor using a multimeter and compare the readings against expected values for the current temperature. If a sensor reads out of range, it should be replaced. If the sensors measure correctly, inspect the wiring harness and connectors between the sensors and the control board for damage, corrosion, or loose terminals. If both the sensors and wiring check out, the control board itself may need to be evaluated.
Is it safe to keep using my dishwasher when E:13 is showing?
Yes, the dishwasher is designed to continue operating in a reduced mode when E:13 is active, running wash and rinse cycles normally while disabling the auxiliary drying system. This means dishes may not dry as thoroughly, but there is no indication that continued use poses a safety risk. That said, the fault should be diagnosed and repaired promptly to restore full functionality and prevent any further component stress.
How much does it cost to repair an E:13 error on a Jenn-Air dishwasher?
Repair costs depend on the root cause. If the fix is a corroded connector that can be cleaned and reseated, out-of-pocket costs may be minimal. Replacing an NTC thermistor is generally an inexpensive repair, with parts typically ranging from around $10 to $40 and modest labor time. If the control board is at fault, parts and labor costs will be significantly higher, often ranging from $150 to $400 or more depending on the service provider and board pricing.

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