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Error code reference

Kenmore Refrigerator Error Code Refrigerator Sensor (2)

Abnormal refrigerator sensor 2 (middle room)

Kenmore codesKenmore refrigerator codes

Abnormal refrigerator sensor 2 (middle room) - cut or short circuit wire detected on the secondary refrigerator temperature sensor.

First step from the service manual

Check for a loose connection in CON7 on Main PCB.

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 Refrigerator Sensor (2) means on a Kenmore refrigerator

The Refrigerator Sensor (2) error code indicates an abnormal reading from the secondary refrigerator temperature sensor, which monitors the middle compartment of the refrigerator section. The control system has detected either an open circuit (cut wire) or a short circuit condition on this sensor's signal line. When the main PCB cannot receive a valid resistance-based temperature signal from this sensor, it logs the fault and may limit or alter cooling operation to protect stored food and internal components.

The secondary refrigerator sensor is a negative temperature coefficient (NTC) thermistor that changes resistance as temperature changes. A cut or broken wire will cause the resistance to read as infinite (open circuit), while a shorted wire will drive the resistance to near zero. Both conditions fall outside the acceptable signal range and trigger this fault. The sensor connects to the main PCB through connector CON7, making that connection point the first place to inspect.

Common causes include wiring harness damage from ice buildup, door gasket interference, or physical contact with moving components inside the cabinet. The connector itself at CON7 can develop corrosion or a loose pin fit over time, which intermittently or permanently breaks the signal path. If the wiring and connector check out, the sensor itself may have failed internally, or in less common cases, the main PCB has a fault on the CON7 input circuit.

Source: manufacturer service documentation.

Common causes of Refrigerator Sensor (2)

  1. 01

    Loose or corroded connection at CON7 on main PCB

    Wiring / connection

    The sensor wiring harness connects to the main PCB through connector CON7. A loose pin, corroded terminal, or partially seated connector at this point will interrupt the signal and trigger the fault. Inspect CON7 for moisture damage, oxidation, and secure seating.

  2. 02

    Damaged or broken sensor wiring harness

    Part replacement

    The wire running from the middle compartment sensor to the main PCB can be pinched, cut, or broken by ice accumulation, improper reassembly after service, or contact with sharp cabinet edges. Visually trace the harness and use a multimeter to check for continuity.

  3. 03

    Failed refrigerator sensor 2 (middle room thermistor)

    Part replacement

    The thermistor itself can fail internally, producing either an open or short circuit reading regardless of wiring condition. If the harness and connector are intact, test the sensor's resistance at a known temperature to confirm it is within spec.

  4. 04

    Short circuit caused by moisture or ice intrusion

    Wiring / connection

    Water infiltration or ice buildup around the sensor or its wiring can create a short circuit between conductors. Check the sensor mounting area for signs of frost accumulation or water damage after defrosting the compartment fully.

  5. 05

    Faulty main PCB input circuit at CON7

    Part replacement

    If the sensor, harness, and connector all test good, the CON7 input circuit on the main PCB may have failed. This is the least common cause and typically requires replacing the main control board.

See the test procedure for each cause

Frequently asked questions about Refrigerator Sensor (2)

What does Refrigerator Sensor (2) mean on a Kenmore refrigerator?
This error code means the main control board has detected an abnormal signal from the secondary refrigerator temperature sensor located in the middle section of the refrigerator compartment. The board has identified either a cut wire (open circuit) or a shorted wire on this sensor's circuit. The first diagnostic step is to check connector CON7 on the main PCB for a loose or faulty connection.
Can I fix the Refrigerator Sensor (2) error myself?
In many cases, yes. Start by unplugging the refrigerator and inspecting connector CON7 on the main PCB for looseness, corrosion, or damaged pins. If the connector looks good, trace the sensor wiring for any visible breaks or pinches. Testing the thermistor with a multimeter requires basic electrical knowledge but is within reach for a confident DIYer. If the main PCB itself is faulty, board replacement is more involved and may warrant professional service.
Is it safe to keep using my refrigerator while this error is showing?
The refrigerator may continue running, but with a faulty temperature sensor the control board cannot accurately monitor the middle compartment's temperature. This raises the risk of inadequate cooling or temperature swings that could affect food safety. It is best to address the fault promptly and monitor food temperatures closely in the meantime.
How much does it cost to repair the Refrigerator Sensor (2) error?
Repair costs vary depending on the root cause. A replacement NTC thermistor sensor typically costs in the range of $15 to $50 for the part. A new wiring harness or connector repair may add modest labor cost if professional service is needed. If the main PCB requires replacement, total costs including parts and labor can range from $150 to $400 or more depending on the model and service rates in your area.
Will resetting my Kenmore refrigerator clear the Refrigerator Sensor (2) error?
A power reset may temporarily clear the error code from the display, but if the underlying wiring fault or sensor failure is still present, the code will return. The error is triggered by a real electrical condition (open or short circuit) that the board will continue to detect on every power cycle. Clearing the code without repairing the fault does not restore accurate temperature monitoring.

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