Jenn-Air Refrigerator Error Code F6E1

The F6E1 error code on a Jenn-Air refrigerator indicates a communication failure between the User Interface (UI) board and the High Voltage (HV) board. These two control boards rely on a dedicated communication line to exchange data continuously. When that signal path is broken or degraded, the refrigerator's control system detects the loss of communication and triggers this fault code. The specific circuit involved runs from the HV Board at connector P4, pin 3, to the Temperature UI board at connector J4B, pin 2.

The most direct cause of this fault is an open wire in the communication harness connecting those two points. An open circuit can result from a broken wire, a damaged connector pin, a disconnected harness, or corrosion at either the HV Board P4-3 or the UI J4B-2 terminal. The wire should be inspected along its entire length for pinching, chafing, or separation. Each connector should be checked for secure seating and for any bent, backed-out, or corroded pins.

If the wiring and connectors check out and continuity is confirmed through the communication wire, the fault may lie within one of the two boards themselves. Either the HV Board or the UI board may have a failed communication circuit internally. In that case, the defective board will need to be identified and replaced. Always verify the wiring harness is sound before condemning either board, as board replacements are significantly more costly than harness repairs.