Written by
Elena Marsh Appliance Care EditorPublished October 29, 2026
VERIFIED
Error codeCup Open
ApplianceDishwasher
Meaning
Cup Open is the display’s way of saying that the detergent dispenser cover on a Kenmore 363 electronic-control dishwasher has not been closed.
Fix
Fill the dispenser with detergent, then push the cover shut.
Not the same as C8
A cover that is jammed is reported differently, as C8.
Kenmore dishwasher repair in San Francisco
Should the message stay once the cover is shut, a technician can look at the dishwasher in San Francisco or elsewhere in the Bay Area. Ring (415) 825-6393 or open Kenmore dishwasher repair, and give the model number along with the exact message.
Model compatibility: Kenmore reuses codes across series and model years, so Cup Open 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
Cup Open means the detergent dispenser cover has not been closed.
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.
