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Error code reference

Kenmore Refrigerator Error Code IM-Sensor

Abnormal Icemaker Sensor

Kenmore codesKenmore refrigerator codes
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What the IM-Sensor error code actually means

Your Kenmore refrigerator has detected a problem with the temperature sensor inside the icemaker, and it cannot read the sensor properly because of a wiring issue or a faulty sensor. This means the refrigerator's control board is not getting the information it needs to run the icemaker correctly, which can cause the icemaker to stop making ice. The problem could be something as simple as a loose wire connection or as involved as a damaged sensor that needs to be replaced.

Diagnostic procedure

The full IM-Sensor procedure

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1
First diagnostic step
Check for a loose connection in CON8 on Main PCB.
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Most common causes of IM-Sensor

Ranked by how often they cause this code
  1. 1Loose or corroded connection at CON8 on the main PCB
  2. 2Cut or broken sensor wire in the harness
  3. 3Short circuit in the sensor wiring
  4. 4Failed icemaker temperature sensor (thermistor)
  5. 5Damaged or faulty main PCB

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Questions people ask about IM-Sensor

What does IM-Sensor mean on a Kenmore refrigerator?
The IM-Sensor code means the main control board has detected an abnormal signal from the icemaker temperature sensor. The fault is specifically associated with a cut wire, a short circuit, or a loose connection in the sensor circuit. The first recommended diagnostic step is to check connector CON8 on the main PCB for a loose or poor connection. If the connection is secure, the wiring harness and the sensor thermistor itself should be inspected next.
Is it safe to keep using my refrigerator while the IM-Sensor code is active?
The refrigerator's cooling system will generally continue to operate with this code active because it is a secondary error related to the icemaker circuit rather than the main refrigeration system. However, the icemaker may stop functioning properly or halt ice production entirely until the fault is resolved. It is best to address the error promptly to avoid any secondary issues from unmonitored icemaker operation.
Will resetting the refrigerator clear the IM-Sensor error code?
A power reset may temporarily clear the code from the display, but the error will return if the underlying fault in the sensor circuit has not been corrected. Resetting without repairing the root cause, whether that is a loose connector, damaged wiring, or a failed sensor, will not fix the problem. Always diagnose and repair the circuit fault first, then confirm the code does not return after restoring power.
Can I fix the IM-Sensor error myself?
Yes, in many cases this error can be resolved without professional help. Start by unplugging the refrigerator, locating CON8 on the main PCB, and reseating the connector firmly. If that does not clear the code, carefully inspect the sensor wiring harness for any visible damage and test for continuity with a multimeter. Replacing a damaged harness or the sensor thermistor is a moderate repair that a confident DIYer can handle with basic tools.
How much does it cost to repair the IM-Sensor error on a Kenmore refrigerator?
If the fix is simply reseating the CON8 connector, there is no parts cost involved. A replacement icemaker temperature sensor typically costs in the range of $20 to $60 for the part alone. If the main PCB is the root cause, board replacement can range from $100 to $300 or more depending on the model. Professional labor will add $75 to $200 or more to those estimates depending on your region.

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