Frigidaire Refrigerator Error Code Uart ERROR COMMUNICATION

The Uart ERROR COMMUNICATION code on Frigidaire refrigerators refers to a UART (Universal Asynchronous Receiver-Transmitter) communication flag that the control board registers under certain conditions. UART is a hardware communication protocol used to transmit data serially between the main control board and other electronic modules within the appliance. When this specific error appears, it indicates a communication event that the refrigerator's diagnostic system has logged but flagged as not applicable to normal operation or repair decisions.

This code is primarily significant in the context of diagnostic testing modes rather than everyday operation. During a diagnostic cycle, the control board runs through a series of self-checks across its communication buses and connected modules. The Uart ERROR COMMUNICATION code can surface as a byproduct of that testing routine without pointing to any actual component failure or operational problem within the refrigerator.

Because this error is explicitly classified as non-applicable, no corrective action is required when it is detected. It does not indicate a failed board, a broken communication line, or a malfunctioning sensor. Technicians running diagnostics on Frigidaire refrigerators should note its presence and move on, as chasing this code with component replacements or wiring repairs would not address any real underlying fault. The refrigerator's cooling system, temperature controls, and other functions are not impaired by this flag.