Frigidaire Refrigerator Error Code Ice Room Sensor Error

This error means the temperature sensor in the ice room compartment is reporting a reading above 149°F or below -58°F, which falls outside the valid operating range. Because these temperatures are not physically realistic for a refrigerator ice compartment, the error indicates a sensor, wiring, or circuit failure rather than an actual temperature problem. The Main PCB monitors the sensor signal voltage at connector CN31 pin 3 to CN76 pin 1, and a reading outside 1.0V to 4.5V triggers the fault.

A power reset may temporarily clear the error code from the display, but the code will return if the underlying sensor or wiring fault has not been repaired. Resetting is useful to confirm whether the fault is intermittent, but it does not fix the root cause. Persistent reappearance of the code after a reset confirms that a component failure needs to be addressed.

If only the ice room temperature sensor needs replacement, parts typically cost in the range of $15 to $50, and a technician may charge $75 to $200 for the diagnostic and repair labor. If the Main PCB is the cause, the part alone can range from $100 to $300 or more depending on the model, with total repair costs potentially reaching $250 to $500 including labor. Getting a diagnostic quote before authorizing parts replacement is advisable.

A knowledgeable DIYer can begin by visually inspecting the ice room sensor connectors and wiring for obvious damage, corrosion, or disconnection. Confirming the voltage between CN31 pin 3 and CN76 pin 1 with a multimeter is the recommended first diagnostic step and does not require disassembling major components. Replacing the sensor is a moderate-difficulty repair, but if the Main PCB is found to be at fault, professional replacement is recommended.

The refrigerator may continue cooling, but the ice maker system may not function correctly without an accurate ice room temperature reading. There is no immediate electrical safety hazard, but continued operation without a working sensor can lead to ice maker malfunctions, including overproduction or failure to produce ice. It is best to diagnose and repair the fault promptly to avoid secondary issues.