Written by
Elena Marsh Appliance Care EditorPublished October 29, 2026
VERIFIED
Error codeC4
ApplianceDishwasher
What an overfill looks like to the control
C4 tells you a Kenmore 363 electronic-control dishwasher has taken in too much water. Begin by cancelling the running cycle, since what the tub does afterward points to the cause.
Branching on the result
Water stays in the tub: switch to the C3 procedure for a dishwasher that will not drain.
Water goes down: something may be lodged beneath the overfill float, so look for it.
Float switch
Check the overfill float switch for damage. A switch found damaged is swapped for a new one.
Dishwasher repair for San Francisco Kenmore owners
If C4 returns after the float check, a technician visit is the way forward in San Francisco and around the Bay Area; (415) 825-6393 takes the booking, and Kenmore dishwasher repair explains the service. Describe what the dishwasher did when you cancelled, and have the model number handy.
Model compatibility: Kenmore reuses codes across series and model years, so C4 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
C4 reports that the dishwasher overfilled.
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
Seeing this code on your Kenmore appliance?
Book a specialist visit for a clear estimate and approval before any repair.
You submit a request with your appliance model and symptom, we confirm an appointment window, and a technician performs an on-site diagnosis. You then receive a clear estimate and decide whether to proceed before any repair begins.
Yes. We provide an upfront estimate after diagnosis. No parts are ordered or installed until you approve the work, so there are no surprise charges.
Replacement parts are selected for the exact model and confirmed with you before ordering or installation.
Service areas are listed on the Locations page. Contact us with your ZIP code to confirm current coverage for your address.
Ready to get your Kenmore appliance working again?
Book a repair online or call us — clear estimates and approval before any repair work begins.
