Frigidaire Dishwasher iC0 Code: Causes & Fix

What is the Frigidaire Dishwasher iC0 error?#

iC0 flags the turbidity sensor, the little optical eye down in the sump that judges how dirty the wash water is so the machine can size the cycle. When its clear window fouls with scale or grease, it reads permanent murk and faults itself — so a cleaning, not a part, is almost always the answer. Kick off an empty run with a dishwasher descaler first; that alone strips the film off the lens from the water side and clears most iC0 cases.

iC0 on a Frigidaire Dishwasher: likely causes and repair cost#

On a Frigidaire Dishwasher, the iC0 code signals: turbidity sensor fault.

Typical professional repair: $100–$200 · Difficulty: moderate · usually a technician job

Symptoms that often accompany iC0: Plates come out still soiled at cycle end; The wash stretches far longer than its rated time; The machine keeps tacking on unrequested rinses

Technician diagnostic sequence for iC0:

1. This is the little optical eye that judges how dirty the wash water is so the machine can size the cycle; when its window fouls, it reads permanent murk and flags itself, so a cleaning is the first move
2. Kick off an empty run with a dishwasher descaler to strip the mineral haze off the lens from the water side without any teardown
3. If that does not clear it, lift the lower arm and coarse filter, find the sensor down in the sump, and polish its clear window with white vinegar on a soft cloth until it is truly transparent again
4. With a spotless lens still faulting, unplug the sensor and inspect its pins for the green corrosion that base-of-tub moisture breeds before you conclude the optics have died

Parts a technician may check or replace: turbidity sensor

Field note: Because this eye only estimates soil to tune the wash, a fouled lens is nearly always the whole story — descale from the water side first, then hand-polish the window. A genuine electronic failure of the emitter or receiver is rare next to plain hard-water film on the glass.

How to troubleshoot the iC0 error yourself#

Because this sensor only estimates soil, a fouled lens is nearly always the whole story, and the fix is a cleaning you can do yourself. Start by running an empty cycle with a dishwasher descaler to dissolve the mineral haze off the optical window without any teardown. If iC0 stays, lift out the lower spray arm and the coarse filter, find the sensor in the sump, and gently polish its clear window with white vinegar on a soft cloth until it is truly transparent again. Only if a spotless lens still faults should you unplug the sensor connector and check its pins for the green corrosion that base-of-tub moisture breeds. A genuine electronic failure of the emitter or receiver is rare next to plain hard-water film, so save the sensor replacement — a technician call — for last.

Is the Frigidaire Dishwasher iC0 error worth fixing?#

iC0 sits at the affordable end of the scale, and it frequently costs nothing but a descaler tab and ten minutes with a cloth. If the sensor itself has genuinely failed and needs replacing, a professional repair runs $100 to $200 — trivial against a new dishwasher and absolutely worth doing. Since the fault is confined to a single low-cost soil sensor and the wash system is otherwise fine, there is no repair-or-replace dilemma here: clean it, and only pay for the part in the rare case a spotless lens still faults.