Kenmore Refrigerator Error Code Er 5

The Er 5 error code on a Kenmore refrigerator indicates a failure of the brushless DC (BLDC) fan motor located in the freezing compartment. Specifically, the control board has detected an absence of the expected motor feedback signal for a continuous period exceeding 115 seconds while the fan motor should be running. BLDC motors rely on a feedback signal (often called a Hall effect or tachometer signal) to communicate rotational speed back to the control board. When that signal is absent or interrupted for the defined threshold, the board registers the fault and displays Er 5.

The freezer compartment fan is responsible for circulating cold air throughout the refrigerator and freezer sections. If this fan stops operating, temperatures will rise, food preservation is compromised, and the compressor may run excessively trying to compensate. The root cause can be mechanical or electrical: the fan blade may be physically obstructed by ice buildup or a structural interference, the motor windings may have failed internally, or the wiring harness connecting the motor to the control board may have a break, short circuit, or loose connection.

Diagnosing Er 5 begins with a physical inspection of the fan and its surrounding area. Check whether the fan blade spins freely by hand, look for ice accumulation that may be locking the blade, and inspect the lead wires for visible damage such as fraying, pinching, or burn marks. Connector contacts at both the motor and board ends should be checked for corrosion or poor seating. If wiring and mechanical clearance check out, the motor itself may need resistance and continuity testing to confirm an internal failure.