Maytag Refrigerator Error Code Error

This error indicates that the communication link between the high voltage board and the low voltage board has been broken or interrupted. The two boards must exchange signals continuously for the refrigerator to operate correctly. When that link is open, the control system flags the fault and the refrigerator may stop functioning normally. Diagnosis involves checking specific voltage readings at the JP4 connector on the low voltage board.

With this error active, the refrigerator's control boards are not communicating properly, which means cooling and compressor operation may be unreliable or completely stopped. Food safety is at risk if the temperature inside rises. It is best to address the error promptly and avoid relying on the refrigerator until the fault is resolved.

Repair costs depend on which component has failed. If only the wiring harness or connector needs attention, costs are generally lower, typically in the range of $100 to $250 including labor. If a control board requires replacement, costs can range from $200 to $500 or more depending on the specific board, part availability, and local labor rates.

A knowledgeable DIYer comfortable with a multimeter can start by inspecting the JP4 connector and the wiring harness for visible damage and by measuring the voltages at pins 2 to 4 (4 to 5 VDC) and pins 1 to 3 (18 to 24 VDC). However, if a control board needs replacement, the repair becomes more involved and a technician is recommended to ensure the correct board is identified and installed safely.

A power reset may temporarily clear the error display, but if the underlying cause such as a wiring fault or failed board is still present, the error will return. Resetting without diagnosing the root cause is not a reliable fix, and the communication fault will continue to affect refrigerator operation.