---
title: "Frigidaire-built Kenmore dishwasher error code i20"
description: "Frigidaire-built Kenmore dishwasher error code i20: frigidaire wrote this code, not Kenmore."
url: "https://kenmoremiami.support/error-codes/frigidaire-dishwasher-i20/"
date_modified: "2026-09-01"
Appliance type: "Dishwashers"
---


# Frigidaire-built Kenmore dishwasher error code i20

### Whose code this actually is

Kenmore did not write i20, because Kenmore has never built an appliance. This one is Frigidaire’s, and it appears on the dishwasher that Frigidaire built and Sears sold under the Kenmore badge. Whirlpool, Frigidaire and Bosch all built dishwashers for this badge, and their numbering overlaps enough to be convincing while meaning entirely different things.

### What it means

Frigidaire's own wording: i20 indicates the dishwasher is not draining properly — the unit did not drain in the expected time.

### Which Kenmore models can raise it

The Kenmore dishwasher whose model number begins 587 — the three digits before the period on the rating plate. Those digits are Frigidaire’s, which is why Frigidaire’s table is the one that applies to i20 and no other manufacturer’s does.

### What happens next

- Clean the filter and the sump.
- Check the disposer plug and the drain hose high loop.
- Frigidaire publishes only i20 and i40 and tells owners to consult the manual for any other message code. Pages listing a full iXX table are not quoting the maker.

### Where this usually goes

The job this most often becomes is [dishwasher drain repair](/services/dishwasher-drain-repair/), and that page carries a starting figure and the reasons that move it. A Kenmore dishwasher on this water scales its heater and its spray arms faster than the manual assumes, so codes about temperature and wash performance are read here with the supply in mind first. Photograph the display before you cut the power: a reset clears i20, and on a Kenmore the characters plus three digits off the plate are most of the diagnosis.

### Where this meaning came from

Frigidaire’s own documentation: *Dishwasher Error Codes and Alarms Guide, Frigidaire owner support*. Kenmore publishes none of its own, which is why every entry on this site names the manufacturer’s document instead.

What this one means

Whose code this actually is

Kenmore did not write i20, because Kenmore has never built an appliance. This one is Frigidaire’s, and it appears on the dishwasher that Frigidaire built and Sears sold under the Kenmore badge. Whirlpool, Frigidaire and Bosch all built dishwashers for this badge, and their numbering overlaps enough to be convincing while meaning entirely different things.

What it means

Frigidaire's own wording: i20 indicates the dishwasher is not draining properly — the unit did not drain in the expected time.

Which Kenmore models can raise it

The Kenmore dishwasher whose model number begins 587 — the three digits before the period on the rating plate. Those digits are Frigidaire’s, which is why Frigidaire’s table is the one that applies to i20 and no other manufacturer’s does.

What happens next

Clean the filter and the sump.

Check the disposer plug and the drain hose high loop.

Frigidaire publishes only i20 and i40 and tells owners to consult the manual for any other message code. Pages listing a full iXX table are not quoting the maker.

Where this usually goes

The job this most often becomes is dishwasher drain repair, and that page carries a starting figure and the reasons that move it. A Kenmore dishwasher on this water scales its heater and its spray arms faster than the manual assumes, so codes about temperature and wash performance are read here with the supply in mind first. Photograph the display before you cut the power: a reset clears i20, and on a Kenmore the characters plus three digits off the plate are most of the diagnosis.

Where this meaning came from

Frigidaire’s own documentation: Dishwasher Error Codes and Alarms Guide, Frigidaire owner support. Kenmore publishes none of its own, which is why every entry on this site names the manufacturer’s document instead.

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**[Read full article: Frigidaire-built Kenmore dishwasher error code i20](https://kenmoremiami.support/error-codes/frigidaire-dishwasher-i20/)**