Written by
Hannah Ostrowski Appliance Care EditorPublished October 26, 2026
VERIFIED
Error codei20
ApplianceDishwasher
Incomplete drain
The message i20 appears when water was left behind after draining. Frigidaire’s dishwasher guide offers a short checklist followed by ways to reset.
Five things to confirm
If the dishwasher feeds a disposer, the knockout plug there must be out.
Nothing may block or obstruct the drain hose.
The hose must not be pinched or restricted.
Hose height matters: the guide wants at least 32 inches above the floor.
Filters and sump should hold no food soils.
Three ways to reset
Press the cancel button.
Switch the power off at the breaker.
Unplug the dishwasher and leave it for 3 minutes.
Codes with a similar theme
i40 also concerns food built up in the filter and sump, and CL shows when the door is not latched.
Frigidaire dishwasher repair near San Francisco
When the checklist does not clear i20, Frigidaire dishwasher repair covers the Bay Area, and (415) 319-6371 reaches us directly. Tell us the model number and which checks and reset you already tried.
Model compatibility: Frigidaire reuses codes across series and model years, so i20 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
i20 means the dishwasher did not drain completely.
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 Frigidaire appliance?
Book a specialist visit for a clear estimate and approval before any repair.
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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.
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