GE Refrigerator Error Code 43

Error code 43 on a GE refrigerator means the control board has detected low or zero current in the icemaker fill tube nozzle heater circuit, indicating the element is likely open. This heater prevents the water fill tube from freezing over. The code is not displayed on the unit itself and can only be read using the GE Smart Tool diagnostic device.

A power reset may temporarily clear the stored fault code, but it will return as soon as the control board checks the nozzle heater circuit again and still detects an open circuit condition. The underlying cause must be repaired for the code to stay clear. Since the code is only visible via the Smart Tool, you would need to reconnect the tool after the reset to confirm whether it has cleared.

If only the nozzle heater element needs replacement, parts and labor costs typically fall in the range of $75 to $200 depending on your location and service provider. If the issue is simply a loose connector or corroded terminal, the repair cost may be limited to a service call fee, generally in the range of $50 to $100. Control board replacement, if required, would be the most expensive outcome and could range from $200 to $400 or more.

Start by checking the wiring harness connections at the control board and at the nozzle heater. Next, use a multimeter to measure the heater resistance, which should read approximately 120 ohms. If the reading is infinite, the heater element has failed and needs to be replaced. If resistance is correct and connections are tight, the wiring or control board may need further inspection.

Error code 43 is not a safety hazard in the traditional sense, but it does affect icemaker performance. Without a functioning fill tube nozzle heater, water can freeze in the fill tube and block ice production completely. Addressing the fault promptly will prevent a full icemaker shutdown and potential water backup issues.