Kenmore Refrigerator Error Code 1

Error code 1 on a Kenmore refrigerator signals a failure in the freezer temperature sensor circuit. The control board has detected either a cut wire (open circuit) or a short circuit on the wiring connected to the freezer thermistor. This prevents the refrigerator from accurately reading the freezer temperature and can affect cooling and defrost performance. Inspection of the sensor wiring and connectors is the recommended first step.

Operating the refrigerator with an active error code 1 is not advisable for extended periods. Without a functioning freezer sensor, the control board cannot accurately regulate the freezer temperature, which may result in food safety issues due to inadequate freezing. Address the fault as promptly as possible to avoid potential food spoilage.

Resetting the refrigerator by unplugging it for a few minutes may temporarily clear the error code from the display, but the code will return if the underlying fault in the freezer sensor circuit has not been repaired. A reset is useful for confirming whether the fault is intermittent, but it is not a substitute for diagnosing and correcting the wiring or sensor issue.

A knowledgeable DIYer can perform the initial diagnostic steps, which include visually inspecting the freezer sensor wiring and reseating any loose connectors. If the wiring appears intact, testing the thermistor with a multimeter is the next step. Replacing a thermistor is a relatively straightforward repair, but if the fault lies in the control board or deep within the wiring harness, professional service is recommended.

If the repair only requires reseating a connector, there may be no parts cost involved. A replacement freezer thermistor typically costs in the range of $15 to $50 for the part. If the wiring harness needs replacement, costs can rise to the $50 to $150 range for parts, with additional labor costs if a technician is hired.