GE Refrigerator Error Code F513

F513 indicates that the Door Board Hot Water Thermistor 2 is sending an invalid or mismatched temperature reading to the control system. This thermistor monitors the temperature in the hot water dispensing circuit built into the door. The fault is triggered when the readings from this sensor do not align with expected values, pointing to a sensor, wiring, or door board problem.

Resetting the refrigerator by unplugging it for a few minutes may temporarily clear the code, but if the underlying issue with thermistor 2 or its wiring is not corrected, the fault will return. A reset is useful for confirming whether the error is intermittent, but it is not a substitute for diagnosing and repairing the actual cause.

If only the thermistor needs to be replaced, parts and labor costs are typically in the range of $75 to $200 depending on your location and service provider. If the door board also requires replacement, the total cost can rise to the $200 to $450 range. Getting a diagnostic visit from a qualified technician will give you a more accurate estimate for your specific situation.

A knowledgeable DIYer can start by inspecting the thermistor connector for looseness or corrosion and reseating it, which sometimes resolves the fault. If the connector looks fine, testing the thermistor resistance with a multimeter is the next step. Replacing the thermistor is a moderately involved repair that requires some comfort working with refrigerator door components and wiring.

The F513 fault is specific to the hot water dispensing system on the door and does not directly affect the main refrigeration or freezer functions. Food safety should not be immediately compromised, but the hot water feature may not operate correctly. It is still advisable to have the fault addressed promptly to avoid potential secondary issues.