Samsung Refrigerator Error Code Freezer High (flickering)

This flickering error code means the refrigerator's self-diagnostic routine detected a fault in the freezer air temperature sensor. The control board is seeing a sensor reading below -50°C (indicating an open circuit) or above +65°C (indicating a short circuit), both of which fall outside any valid operating range. The flickering display distinguishes this as an initial startup fault rather than a runtime temperature alarm. The freezer air thermistor or its wiring harness is the most likely source of the problem.

It is not advisable to rely on the freezer with this error active. Because the air sensor is faulty, the control board cannot accurately monitor or regulate the freezer compartment temperature, which means frozen food could be at risk of improper storage temperatures. You can keep the unit running temporarily while sourcing parts, but check that food remains solidly frozen and address the fault as soon as possible.

If the freezer air thermistor is the failed component, the part itself typically costs in the range of $15 to $50 depending on the model. If a professional technician performs the repair, total costs including labor generally range from $100 to $250. If the fault turns out to involve the main control board, repair costs can rise to the $200 to $450 range or higher, making it worth getting a diagnosis before committing to parts.

In many cases, yes. Start by unplugging the refrigerator and locating the freezer air sensor and its wiring harness. Inspect all connectors and wires for visible damage, corrosion, or disconnection, and reseat any loose connectors. If the wiring looks intact, use a multimeter to measure the thermistor's resistance and determine whether the sensor itself needs to be replaced. Replacing a thermistor is a straightforward repair for someone comfortable working with appliance wiring.

A power reset, performed by unplugging the refrigerator for a few minutes and plugging it back in, may temporarily clear the error display. However, because this code is triggered during the initial self-diagnosis routine, the error will return almost immediately if the underlying sensor or wiring fault has not been corrected. A reset alone is not a fix and should only be used as part of the diagnostic process.