Electrolux Dishwasher Error Code iC1

The iC1 code indicates a MACS bus communication problem between the main control board and the user interface display board. The main board sends identification requests to the display board, and after three failed attempts with no valid response, the iC1 error is signalled. This fault typically points to a wiring or connection issue between the two boards.

A power reset may temporarily clear the iC1 code if it was triggered by a momentary communication glitch, but if the underlying cause is a loose connector or damaged harness, the error will return once the dishwasher attempts to reinitialize communication. The physical connection and wiring should be inspected and corrected to prevent the code from reappearing.

If the fix is simply reseating a loose harness connector, there may be no parts cost involved, though a service call fee would still apply if a technician is needed. Replacing the user interface display board typically costs in the range of $80 to $200 or more for the part, plus labor. If the main control board requires replacement, costs can be higher, generally ranging from $150 to $350 or more depending on the specific model.

Start by inspecting the wire harness and connectors between the user interface board and the main control board, as a loose or damaged connection is the most likely cause. Reseat any connectors that appear loose and check the harness for visible damage or corrosion. If the wiring is intact, the UI display board may need to be replaced, and if that does not resolve the issue, the main control board should be evaluated.

The iC1 error indicates a loss of communication between the control boards, which typically prevents the dishwasher from operating normally. Attempting to run a cycle with this fault active is not recommended, as the main board cannot properly coordinate with the display board. The issue should be diagnosed and resolved before resuming use.