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Error code reference

Kenmore Refrigerator Error Code rS E

Refrigerator sensor error caused by short or open circuit in the refrigerator sensor.

Kenmore codesKenmore refrigerator codes

Refrigerator sensor error caused by short or open circuit in the refrigerator sensor.

First step from the service manual

Check for loose connection in CON7, then unplug connector and check resistance between wires White to White.

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

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What rS E means on a Kenmore refrigerator

The rS E error code on a Kenmore refrigerator indicates a fault in the refrigerator compartment temperature sensor circuit. This sensor, also called the fresh food thermistor, continuously monitors the internal temperature of the refrigerator section and sends resistance-based signals to the control board. When the control board detects either a short circuit or an open circuit in this sensor loop, it sets the rS E code and may disable normal temperature regulation until the fault is resolved.

The diagnostic process begins at connector CON7, which carries the wiring for the refrigerator sensor circuit. A loose or corroded connection at CON7 is among the most common causes and should be inspected first before replacing any components. With the connector unplugged, resistance should be measured between the two white wires in the connector. A properly functioning sensor will read within the expected resistance range for the compartment temperature, while a short circuit will read near 0 ohms and an open circuit will read infinite resistance (OL on a multimeter).

If the CON7 connection is secure and the resistance reading is out of range, the thermistor itself is likely faulty. However, the wiring harness between CON7 and the sensor should also be inspected for damage such as pinching, chafing, or rodent damage, as any of these conditions can produce a short or open circuit reading without the sensor itself being defective.

Source: manufacturer service documentation.

Common causes of rS E

  1. 01

    Loose or corroded connector at CON7

    Wiring / connection

    The wiring connector designated CON7 carries the sensor signal to the control board. Vibration or moisture can cause this connector to loosen or corrode over time, creating an intermittent or broken circuit. Inspect and reseat the connector as the first step.

  2. 02

    Failed refrigerator compartment thermistor

    Part replacement

    The thermistor itself can fail internally, producing either a short (very low resistance) or open (infinite resistance) reading when measured between the white wires at CON7. A resistance reading outside the expected range with the connector unplugged confirms a faulty sensor.

  3. 03

    Damaged wiring harness

    Part replacement

    The wire runs between CON7 and the sensor can be pinched by shelving components, chafed against sharp edges, or damaged by moisture. Inspect the full length of the harness for visible damage, bare copper, or melted insulation.

  4. 04

    Moisture or ice buildup near the sensor

    Wiring / connection

    Excessive frost accumulation in the refrigerator section can encapsulate the sensor or its wiring and affect its resistance readings. A forced defrost cycle or manual thaw should be performed to rule out this condition before replacing parts.

  5. 05

    Faulty main control board

    Part replacement

    If the sensor and all wiring check out within normal resistance ranges and the connector is secure, the control board may be misreading the sensor signal due to an internal fault. This is the least likely cause and should only be considered after all other components are confirmed good.

See the test procedure for each cause

Frequently asked questions about rS E

What does rS E mean on a Kenmore refrigerator?
The rS E code indicates a refrigerator compartment sensor error caused by a short circuit or open circuit in the temperature sensor circuit. The control board monitors resistance signals from this sensor to regulate cooling in the fresh food section. When the signal falls outside acceptable parameters, the code is triggered. The first place to check is the wiring connector labeled CON7 and the resistance between the two white wires in that connector.
Can I fix the rS E error code myself?
Yes, in many cases this repair is DIY-friendly. Start by unplugging the refrigerator and inspecting the CON7 connector for looseness or corrosion, then reseat it firmly. If that does not resolve the issue, use a multimeter to measure resistance between the white wires at CON7 to determine whether the thermistor or wiring harness needs replacement. Replacing a thermistor is a straightforward repair that typically requires only basic tools.
Is it safe to keep using my refrigerator while the rS E code is active?
It is not recommended to rely on the refrigerator for food storage while the rS E code is active. Without a functioning temperature sensor, the control board cannot accurately regulate cooling in the fresh food compartment, which means temperatures could rise to unsafe levels without any warning. Perishable foods should be moved to another refrigerator or cooler until the fault is resolved.
Will resetting the refrigerator clear the rS E code?
A reset, such as unplugging the unit for a few minutes, may temporarily clear the code if the fault was caused by a momentary glitch or a loose connector that reseats during the process. However, if the thermistor or wiring is genuinely faulty, the code will return once the refrigerator resumes operation. A proper resistance check at CON7 is needed to determine whether the underlying fault has been corrected.
How much does it cost to repair the rS E error on a Kenmore refrigerator?
If only the thermistor needs replacement, parts typically cost in the range of $15 to $50 depending on the specific model, making it one of the more affordable refrigerator repairs. If professional labor is required, total repair costs including diagnosis and installation generally range from $100 to $250. A wiring harness repair or control board replacement would push costs higher, so accurate diagnosis before ordering parts is important.

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