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Error code reference

Kenmore Refrigerator Error Code 6

Abnormal Room Temperature Sensor

Kenmore codesKenmore refrigerator codes

Abnormal Room Temperature Sensor - sensor failure indicated by Section A LED turning OFF in display check mode.

First step from the service manual

Check for a loose connection in CON5.

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

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What 6 means on a Kenmore refrigerator

Error code 6 on a Kenmore refrigerator indicates an abnormal room temperature sensor condition. This sensor monitors the ambient temperature of the environment surrounding the refrigerator, which the control board uses to make operational adjustments such as condenser fan speed and cooling cycle behavior. When the control board detects that this sensor has failed or is producing an out-of-range signal, it logs error code 6 and flags it in display check mode by turning off the Section A LED.

The room temperature sensor is a thermistor, a resistive component whose resistance value changes predictably with temperature. A failure can present as an open circuit, a short circuit, or an intermittent resistance reading that falls outside the expected range for the board's input. The connector designated CON5 is the first point to inspect, as a loose or corroded pin at this connector is a frequent cause of the signal interruption that triggers this code.

Diagnosing this error begins at CON5 by checking for secure seating, corrosion, or damaged pins. If the connection is intact, the thermistor itself should be tested for proper resistance at a known ambient temperature. A failed sensor will typically read either near zero ohms or infinite resistance, both of which the board interprets as a fault condition. Wiring between CON5 and the sensor should also be inspected for pinching, breaks, or heat damage.

Source: manufacturer service documentation.

Common causes of 6

  1. 01

    Loose connection at CON5

    Wiring / connection

    A loose or partially seated connector at CON5 is the first and most common cause. Unplug the refrigerator, locate CON5 on the control board harness, and reseat the connector firmly, checking for bent or corroded pins.

  2. 02

    Failed room temperature thermistor

    Part replacement

    The thermistor itself may have failed open or shorted, producing a signal outside the acceptable range. Testing the sensor with a multimeter will reveal an abnormal resistance reading inconsistent with the actual ambient temperature.

  3. 03

    Damaged wiring between sensor and CON5

    Part replacement

    The wire harness running from the room temperature sensor to CON5 may be pinched, broken, or chafed. Visually inspect the full length of the wiring for any signs of damage or contact with a heat source.

  4. 04

    Corrosion at connector pins

    Wiring / connection

    Moisture exposure can cause oxidation on the CON5 connector pins, increasing resistance in the circuit and causing intermittent or permanent sensor signal loss. Inspect pins for visible corrosion and clean if present.

  5. 05

    Faulty control board

    Part replacement

    If the sensor and all wiring check out correctly, the control board's input circuit for the room temperature sensor may have failed. 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 6

What does 6 mean on a Kenmore refrigerator?
Error code 6 on a Kenmore refrigerator means the control board has detected a failure in the room temperature sensor. This sensor measures the ambient temperature around the refrigerator and helps the unit adjust its operation accordingly. In display check mode, this error is confirmed by the Section A LED turning off. The first diagnostic step is checking the CON5 connector for a loose or faulty connection.
How do I fix error code 6 on a Kenmore refrigerator?
Start by unplugging the refrigerator and inspecting the CON5 connector for loose, corroded, or bent pins, then reseat it firmly. If the connection is secure, use a multimeter to test the room temperature thermistor for a proper resistance reading at the current ambient temperature. A thermistor reading open or shorted will need to be replaced. If the sensor and wiring are both good, the control board may need further diagnosis.
Is error code 6 on a Kenmore refrigerator dangerous?
Error code 6 is not an immediately dangerous condition, but it does mean the refrigerator is operating without accurate ambient temperature data. This can affect cooling efficiency and compressor behavior over time. It is best to diagnose and resolve the issue promptly to ensure the refrigerator maintains proper food-safe temperatures.
Will resetting my Kenmore refrigerator clear error code 6?
A power reset may temporarily clear the displayed error, but if the underlying cause such as a loose connector or failed thermistor is not addressed, the code will return. Resetting should only be used after completing the recommended diagnostic steps and confirming the issue has been resolved. Clearing the code without a repair does not restore the sensor circuit to normal operation.
How much does it cost to repair error code 6 on a Kenmore refrigerator?
If the fix is simply reseating the CON5 connector, there is no parts cost involved and a technician visit would typically fall in the range of $75 to $150 for a diagnostic call. Replacing the room temperature thermistor is generally an inexpensive repair, with parts typically ranging from $15 to $50 depending on the model. If the control board is at fault, replacement costs can range from $100 to $300 or more for parts alone.

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