Kenmore Refrigerator Error Code AS

The AS code on a Kenmore refrigerator indicates a short circuit or open circuit condition in the ambient temperature sensor circuit. This sensor measures the air temperature around the outside of the unit and feeds that data to the main control board. Because it is a secondary error code, it only appears when the refrigerator is placed into Display LED Check diagnostic mode and will not show up on the standard display during normal use.

A faulty ambient sensor can affect how efficiently the refrigerator manages temperature and compressor cycling, which could lead to food safety concerns over time. The unit may continue to run in the short term, but the underlying sensor fault should be diagnosed and repaired promptly to ensure the appliance is operating correctly. Monitor internal temperatures closely with a separate thermometer if you continue using the refrigerator before completing the repair.

Repair costs vary depending on the root cause. If the fix is simply reseating a loose connector at CON5, there may be no parts cost at all, though a service call from a technician can range from roughly 75 to 150 dollars. Replacing the ambient sensor typically adds a modest parts cost, while replacing the main PCB is the most expensive scenario, with parts and labor potentially ranging from 200 to 400 dollars or more depending on the model.

The first diagnostic step, checking and reseating the CON5 connector on the main PCB, is something a confident DIYer can perform. If the connector is secure and the fault persists, further diagnosis involves testing the sensor and wiring harness with a multimeter, which requires some electrical knowledge. Replacing the main PCB is a more advanced repair that many homeowners prefer to leave to a qualified technician.

A power reset may temporarily clear the error from the control board's memory, but the code will return if the underlying fault in the ambient sensor circuit is still present. Since the AS code is only visible in diagnostic mode rather than on the main display, a reset does not address the root cause. Proper repair of the sensor, wiring, or connector is required for the fault to be permanently resolved.