Frigidaire Dishwasher Error Code iC0

The iC0 code means the dishwasher's communication system does not recognize any display board. The main control board is attempting to communicate with the user interface board and receiving no response. This typically points to a wiring connection problem or a failure of the UI board or main control board.

A reset may temporarily clear the code, but if the underlying communication problem remains, the iC0 error will return. A reset is a reasonable first step to confirm whether the fault is intermittent, but a persistent iC0 code requires physical inspection of the harness and boards to resolve the root cause.

Repair costs depend on which component has failed. If only the wire harness needs reseating or replacement, costs are relatively low, typically in the range of $20 to $80 for parts if a new harness is needed. A replacement UI board generally costs between $60 and $150 for the part, while a main control board can range from $80 to $200 or more. Adding professional labor will increase the total cost by $100 to $200 depending on your area.

A homeowner comfortable with basic appliance work can start by checking the wire harness connections between the control panel and the main board, as a loose connector is a common cause. If the connections are secure and the error persists, replacing the UI board or main control board typically requires some technical skill and comfort working inside the door panel. If you are unsure, a qualified technician can diagnose the fault more efficiently.

The dishwasher will generally not operate normally while iC0 is active because the control system cannot communicate with the display board. Attempting to run cycles in this state is not recommended, as the machine cannot properly accept commands or monitor its own status. Address the fault before resuming normal use.