GE Refrigerator Error Code 42

Error code 42 on a GE refrigerator means the control board has detected a high current condition in the icemaker fill tube nozzle heater circuit. This heater prevents water from freezing in the fill tube before it enters the ice mold. The code is not shown on the display panel and can only be retrieved using GE's Smart Tool diagnostic equipment. It indicates an electrical fault in the heater, its wiring, or the control board.

A high current condition in a heater circuit can indicate a short circuit, which carries a risk of electrical damage to the control board or, in rare cases, overheating of wiring. While the refrigerator may continue operating, it is advisable to have the fault diagnosed promptly. If you notice any burning smell or signs of melted wiring near the icemaker area, discontinue use and call a technician.

Resetting the refrigerator by unplugging it or cycling the breaker may temporarily clear the stored fault code, but the code will return if the underlying electrical problem is not repaired. Because this code is only accessible via the Smart Tool data log, clearing it without fixing the root cause simply delays proper diagnosis. The heater circuit fault must be identified and corrected to resolve the condition permanently.

Some steps, like checking and reseating the wiring connections at the control board, are accessible to a skilled DIYer. However, retrieving this code in the first place requires GE's Smart Tool, which is typically only available to certified technicians. Measuring heater resistance with a multimeter is also a manageable DIY step, but replacing the heater or control board may require disassembly of the freezer compartment and is best handled by a qualified technician.

Repair costs depend on the faulty component identified during diagnosis. Replacing the fill tube nozzle heater is generally a lower-cost repair, with parts and labor typically ranging from around 100 to 250 dollars. If the control board is the cause, costs can rise to a range of 300 to 600 dollars or more depending on the specific model and labor rates in your area.