GE Refrigerator Error Code R-1- (segment a)

The R-1- (segment a) code indicates an icemaker sensor error. It is triggered by physical sensor separation, a wiring disconnection, a short circuit, or the sensor reporting a temperature above 149°F or below -58°F. The main PCB cannot properly control the icemaker without a valid sensor signal, so it flags this fault and may disable ice production.

A power reset may temporarily clear the code from the display, but if the underlying fault with the icemaker sensor or its wiring is still present, the error will return. The code should only stay cleared after the root cause, such as a loose connection or failed sensor, has been corrected.

If the fix is simply reseating a loose connector or repairing a wire, costs may be minimal, covering only a service call in the range of $75 to $150. If the icemaker temperature sensor needs replacement, parts typically range from $20 to $60, with total repair costs including labor falling between $100 and $250 depending on your location and service provider.

Start by checking the voltage at the main PCB connector CN90 between pins 3 and 4, which should read between 1.0V and 4.5V. If the voltage is out of range, inspect the sensor connector for loose or corroded terminals, check the wiring harness for damage, and verify the sensor is properly seated in its housing. If the wiring is intact and connections are secure, the sensor itself likely needs replacement.

The refrigerator's main cooling functions are typically separate from the icemaker circuit, so food storage is generally not affected. However, the icemaker may not operate correctly while the fault is active. It is best to address the sensor issue promptly to restore normal ice production and prevent potential secondary issues.