Midea Refrigerator Error Code F4

The F4 error code on a Midea refrigerator indicates a sensor fault at the bottom of the freeze ice maker. The control board is not receiving a valid signal from the temperature sensor in that location. The cause can range from a loose connector to a failed sensor or damaged wiring.

A power reset may temporarily clear the F4 code, but it will return if the underlying sensor fault is not corrected. The fault is tied to a hardware condition, specifically a missing or invalid signal from the ice maker sensor, so the physical issue must be resolved for the error to stay cleared.

If the fix is simply cleaning and reseating the connector terminals, there is no parts cost involved. Replacing a failed ice maker temperature sensor typically costs between 15 and 50 dollars for the part, with additional labor charges if a technician performs the repair. A main PCB replacement, if required, will cost considerably more, generally ranging from 100 to 300 dollars or higher depending on the model.

Start by unplugging the refrigerator and inspecting the connector terminals on the ice maker and the main PCB. Clean any debris, corrosion, or ice from the terminals, then firmly reseat the connectors and restore power to see if the fault clears. If the error persists, the ice maker sensor or its wiring harness may need to be tested and replaced.

The F4 fault itself does not present an immediate safety hazard. However, it does indicate the ice maker temperature sensor is not functioning, which means the ice maker may not operate correctly or may produce unreliable results. Addressing the fault promptly prevents potential issues with ice production and keeps the control system operating accurately.