Fisher & Paykel Dishwasher Error Code F82

The F82 error code on a Fisher & Paykel dishwasher indicates a motor controller ADC (Analog-to-Digital Converter) check failure. The ADC is an internal circuit within the motor controller board responsible for converting analog signals, such as voltage or current readings from the motor and related sensors, into digital values the controller's processor can interpret. When the controller runs its self-diagnostic routine and detects that the ADC is returning out-of-range, inconsistent, or non-functional readings, it flags F82 and halts operation to prevent potential damage to the motor or other components.

This type of failure is almost always internal to the motor controller board itself. The ADC circuitry is integrated into the controller's electronics, meaning there is no external sensor or wiring harness component to swap out and test in isolation. A failed ADC can result from component fatigue on the board, moisture ingress causing corrosion on the PCB, power surge damage to the converter circuitry, or general electronic component failure over time.

Because the ADC check failure points directly to the motor controller's internal electronics, the recommended first diagnostic step is to replace the motor controller assembly. Attempting to repair the board at the component level is generally not practical without specialized electronics equipment and expertise. Before replacing the controller, technicians should verify that supply voltage to the board is correct and that there are no visible signs of burning, corrosion, or damaged connectors on the existing board.