Frigidaire Dishwasher Error Code iC3

The iC3 code means the power board and Motor Control Board are not able to establish communication with each other. This prevents the dishwasher from running any cycles. The fault is typically rooted in the wire harness connecting the two boards, though either board itself can also be the cause.

Resetting the dishwasher by cutting power for a few minutes may temporarily clear the code, but if the underlying communication problem still exists, the iC3 error will return. A reset does not fix a loose connector, a broken wire, or a failed board. The root cause must be addressed to resolve the fault permanently.

Repair costs vary depending on the root cause. If the fix is simply reseating a connector, there may be no parts cost, though a service call fee will still apply. Replacing a wire harness typically falls in the range of $50 to $150 for parts. A Motor Control Board or power board replacement generally costs between $100 and $300 or more for the part alone, with additional labor charges on top of that.

A knowledgeable DIYer can attempt the first steps, which include inspecting and reseating the wire harness connectors between the power board and Motor Control Board. If the connectors look secure and the harness shows no visible damage, testing continuity with a multimeter is the next step. Board-level repairs or replacements are more involved and may be better suited for a qualified technician.

The dishwasher will not operate normally while the iC3 fault is active, so running a wash cycle is generally not possible. You should avoid forcing the unit to run and instead address the communication fault first. There is no immediate safety hazard such as a fire risk from the error itself, but continued troubleshooting attempts without addressing the wiring should be done with the appliance unplugged.