Fisher & Paykel Dishwasher Error Code FC3

FC3 indicates an inter-wash controller communications fault. It means the top drawer's wash controller cannot communicate with the bottom drawer's wash controller. This is specific to Fisher & Paykel DishDrawer models that have two independent tubs. The fault is most often caused by a damaged or disconnected wiring harness between the two controllers.

A reset may temporarily clear the displayed code, but if the underlying communication fault still exists, the FC3 error will return once the unit attempts to run. A reset is not a fix. The physical cause, whether a loose harness, damaged wiring, or a faulty controller board, must be identified and corrected to permanently clear the fault.

Repair costs vary depending on the cause. If the fix is simply reconnecting a harness, a service call fee of roughly $80 to $150 may be the only cost. If the communication harness needs replacement, parts and labor could bring the total to $150 to $300. A failed bottom tub wash controller board is the most expensive scenario, with total repair costs potentially ranging from $250 to $500 or more depending on parts availability and labor rates in your area.

In some cases, yes. The first step is to check whether the wiring harness connecting the bottom tub wash controller is securely plugged in at both ends. If the connector has simply come loose, reseating it may resolve the fault without any parts. However, if the harness is damaged or the bottom controller board has failed, those repairs are more involved and may require a technician.

Operating the dishwasher with an active FC3 fault is not recommended. Because the top controller cannot communicate with the bottom controller, the unit may not complete cycles correctly or may behave unpredictably. It is best to leave the appliance off until the fault is diagnosed and repaired.