GE Refrigerator Error Code OP

OP indicates that the fresh food compartment temperature sensor (thermistor) is showing an open circuit to the control board. It appears on the fresh food side of the display while the freezer display continues to read normally. The control board cannot receive a temperature signal from that sensor, so it flags the fault. This typically points to a disconnected connector, broken wire, or a thermistor that has failed internally.

A power reset may temporarily clear the display, but the code will return if the underlying open circuit condition still exists. The control board continuously monitors the thermistor signal, so any reset is only temporary unless the actual fault, whether a bad connection, broken wire, or failed thermistor, is corrected first.

If the fix is simply reseating a loose connector, there is no parts cost involved. Replacing a failed fresh food thermistor typically costs between $15 and $50 for the part, depending on the model. If a professional technician is needed for diagnosis and repair, total costs including labor generally range from $100 to $250, with a faulty control board at the higher end of repair expenses.

Yes, in many cases. Start by unplugging the refrigerator and locating the fresh food thermistor, then check that its wiring connector is firmly seated. If the connection looks secure, use a multimeter to measure the thermistor's resistance and compare it to the NTC temperature-resistance chart for your model. If the thermistor reads infinite resistance, it needs replacement, which is a straightforward part swap for someone comfortable with basic appliance repair.

You should address the code promptly rather than ignoring it. Without a functioning fresh food thermistor, the control board cannot accurately regulate the temperature in the main compartment, which can lead to food spoilage from inconsistent or improper cooling. The freezer may continue operating normally, but the fresh food section is at risk of temperature swings.