GE Range Error Code F71

The F71 error code on a GE range indicates a LIN communication failure between the main control board and one or more slave devices on the LIN (Local Interconnect Network) bus. The most commonly implicated slave device is the RPSM (Remote Power Supply Module) board. LIN is a single-wire serial communication protocol used to coordinate signals between the primary control board and secondary modules. When the main board cannot establish or maintain communication with these slave nodes, it triggers F71 to alert the technician to a network fault.

The failure can originate from a few distinct points in the circuit. The LIN wire itself, which runs through the main wiring harness, is the first suspect. A damaged, pinched, shorted, or open wire in this harness will interrupt the single-wire data path entirely, preventing any slave device from responding. Corrosion at connector terminals or a loose connector pin can also cause intermittent or complete communication loss without any visible damage to the wire itself.

If the LIN wire and its connectors check out as intact and properly seated, the RPSM board itself is likely the source of the fault. A failed RPSM board will not respond to polling from the main control board, producing the same F71 error. In less common cases, the main control board may be the originating fault if it is unable to generate the LIN signal correctly, though this is typically ruled out after the harness and RPSM have been inspected and replaced as needed.