Samsung Refrigerator Error Code 31E

The 31E code indicates a Cool Select Room fan error. It activates when the refrigerator detects a problem with the fan motor feedback signal, a disconnected wire in the motor harness, or a motor that fails to run on startup. The Cool Select Room is a dedicated compartment with its own fan and temperature control, and this code signals that fan circuit has a fault.

A power reset may temporarily clear the 31E code, but it will return if the underlying hardware fault is not corrected. The error is triggered by a real electrical condition, specifically a missing or out-of-range feedback signal from the fan motor circuit. Resetting without repairing the root cause, such as a loose connector, broken wire, or failed motor, will not resolve the issue long term.

Repair costs vary depending on the root cause. If the fix is simply reseating a loose connector, there may be no parts cost at all. A replacement Cool Select Room fan motor typically costs in the range of $30 to $80 for the part, plus labor if a technician is hired. If the Main PCB is at fault, parts alone can run from $100 to $250 or more, making professional diagnosis worthwhile before ordering components.

Some causes of the 31E error are accessible to a knowledgeable DIYer. You can check whether the fan motor connector is seated securely at both the motor and the Main PCB connector CN76, and inspect the wiring harness for visible damage. If the connectors are solid and the harness looks intact, measuring the voltage at CN76 pins 1 to 5 requires a multimeter and some comfort working around refrigerator electronics. Motor or PCB replacement is more involved and may warrant a professional technician.

The 31E error is not a safety hazard in the way that a gas or fire-related fault would be. However, a failed Cool Select Room fan means that compartment may not maintain its set temperature, which can affect food stored there. The rest of the refrigerator typically continues operating normally. You should address the fault promptly to avoid food spoilage in the affected zone.