Kenmore Dryer Error Code F3E6

The F3E6 error code on a Kenmore dryer indicates that the moisture sensor strip circuit is open, meaning there is a break in the electrical continuity of the moisture sensor assembly. The moisture sensor typically consists of two metal sensor bars mounted inside the dryer drum. As wet clothes tumble and contact these bars, a small electrical current passes between them, allowing the control board to measure moisture levels and adjust drying time accordingly. When the circuit is open, the control board receives no signal from the sensor, and the F3E6 fault is logged. This code only appears during service diagnostic mode, so it will not display during normal operation.

An open circuit in the moisture sensor system can result from several conditions. The sensor bars themselves may be coated with residue from dryer sheets or fabric softener, which can insulate the metal surface and interrupt conductivity. Beyond contamination, the sensor strips can physically fail due to corrosion or damage. The wiring harness connecting the sensor bars to the control board is also a potential failure point, as connectors can loosen, terminals can corrode, or wires can break from repeated drum movement and vibration over time.

Diagnosing this fault requires following the moisture sensor test procedure (TEST #5, page 18), which walks through checking the sensor strips and associated wiring for continuity and proper connection. Technicians should inspect the harness routing, connector seating, and the condition of the sensor bar surfaces before condemning any individual component. Resistance and continuity measurements at the sensor and at the control board connector are the primary tools for isolating where the open circuit exists.