Frigidaire Refrigerator Error Code IceMaker Sensor Error

This error indicates the control board has detected a fault in the ice maker sensor circuit. The problem can be a disconnected connector, poor pin contact, a broken or shorted wire in the harness, or a failed sensor. The main PCB monitors the sensor through pins 3 and 4 of connector CN90, where the voltage should read between 1.0V and 4.5V during normal operation. Any reading outside that range triggers this error.

This error does not typically present a safety hazard to the household. It is primarily a functional issue that stops or disrupts ice production. However, a short circuit in the wiring should not be ignored, as damaged wiring can worsen over time. The refrigerator's cooling function for food storage is generally not affected by this specific error.

Repair costs depend on the specific fault found. If the issue is a loose connector or minor wiring repair, costs may be limited to a service call fee, typically in the range of $75 to $150. If the ice maker sensor needs to be replaced, parts costs generally range from $20 to $80 depending on the model, with labor adding to the total. A complete ice maker assembly replacement, if needed, can run $100 to $300 or more for parts alone.

Some causes are DIY-friendly. Reseating a loose connector at CN90 or inspecting the wiring harness for visible damage requires only basic tools and careful observation. However, testing voltage at the main PCB connector and checking wiring continuity requires a multimeter and comfort working with live appliance circuits. If the sensor itself has failed, replacing it involves disassembling part of the ice maker assembly, which is manageable for experienced DIYers but may be better handled by a technician.

A reset may temporarily clear the error code, but if the underlying fault in the sensor circuit has not been corrected, the error will return. Resetting is useful for confirming whether the fault is intermittent, but it is not a repair. The voltage at CN90 pins 3 and 4 should be measured and the wiring inspected before concluding the issue is resolved.