GE Dishwasher Error Code Adc

The Adc code on a GE dishwasher means the machine control board has detected a critical internal failure within its own circuitry. This is not a sensor or component fault elsewhere in the unit. The board has flagged itself as non-functional and stopped the cycle. A power cycle may clear it temporarily, but a recurring Adc code requires replacing the machine control board.

Running the dishwasher with an active Adc fault is not advisable. Because Adc is a critical internal board failure, the control board cannot reliably manage water fill, heating, or drainage during a cycle. This creates a risk of the machine behaving unpredictably, such as overfilling or not stopping a heating element on time. Do not run the unit until the board has been replaced or the fault has been confirmed cleared after a power cycle.

A power cycle can clear the Adc code if the fault was caused by a temporary glitch or minor voltage irregularity. Unplug the dishwasher or shut off its breaker for at least 60 seconds, then restore power. If the code does not return after running a full cycle, the unit may be operating normally. If Adc reappears, the machine control board has a genuine internal hardware failure and will need to be replaced.

Start by power cycling the dishwasher: unplug it or trip the circuit breaker for 60 seconds, then restore power. If the Adc code comes back after running a cycle, the machine control board needs to be replaced. Locate your model number inside the door frame, order the matching control board, and disconnect power before performing the swap. If you are not comfortable working inside the unit's control panel area, a GE-certified technician can handle the replacement.

A replacement GE machine control board typically costs between $100 and $250 depending on the model, with prices varying by supplier. If you hire a technician, expect labor costs of $100 to $200 on top of the part, bringing total repair costs to roughly $200 to $450. DIY replacement is manageable for someone comfortable with appliance repair, as it generally involves removing the inner door panel, disconnecting wire harnesses, and swapping the board. Always confirm the part number matches your specific model before purchasing.