Frigidaire Dishwasher Error Code i20: Meaning & How to Fix It

By the ErrorCodePro Editorial Team · Last reviewed October 20, 2026

Frigidaire dishwasher error code i20 means: The dishwasher didn't drain completely. [1] Keep using it? Not until the cause is fixed. Start with the owner checks below, beginning with: check the disposer plug.

Quick facts

Code	i20
Also shown as	None listed by the manufacturer
Brand / appliance	Frigidaire dishwasher; same code and guidance on Electrolux dishwashers
System	Drain
Official meaning	The dishwasher didn't drain completely. [1]
Keep using it?	Not until the cause is fixed
DIY-safe?	Owner checks only (listed below)
Support	Frigidaire support (owner.frigidaire.com)

On this page: Meaning · Steps · Parts · When to call a technician · Related codes · FAQ

What error code i20 means on a Frigidaire dishwasher

The dishwasher didn't drain completely. [1]

This is a drain code. Codes and wording can vary by model, so check your owner's manual for your model number.

How to fix Frigidaire dishwasher error code i20 (safe owner checks)

Safety first: disconnect power before you remove any panel or reach into the sump or drum. Do not touch wiring, the control board or the motor. If you see water near electrical parts, stop and call a technician. These steps are based on Frigidaire's published guidance [1], rewritten for clarity.

Check the disposer plug. Make sure the knock-out plug in the disposer has been removed.
Check the drain hose. Make sure it isn't blocked, pinched or restricted, and reaches at least 32 in above the floor.
Clean the filters. Clear food soil from the filters and sump.
Reset. Press Cancel, turn off the breaker, or unplug for 3 minutes.

Parts that may be involved

Exact parts depend on your model number. This page lists part types only, never part numbers.

Drain hose
Filter

When to call a technician

Anything involving wiring, the control board, the motor or the water valve electrics
The appliance is under warranty: contact Frigidaire support (owner.frigidaire.com) first

Frequently asked questions

What does error code i20 mean on a Frigidaire dishwasher?

Frigidaire lists i20 as follows: The dishwasher didn't drain completely.

Is it safe to keep using the dishwasher with i20?

Not until the cause is fixed.

Can I fix Frigidaire dishwasher error i20 myself?

Only with the owner checks on this page, starting with: check the disposer plug. If it persists, call a technician or Frigidaire support (owner.frigidaire.com).

Sources

https://owner.frigidaire.com/support-articles/article/1829620-dishwasher-error-code-guide (official)

Last reviewed: October 20, 2026. ErrorCodePro is not affiliated with Frigidaire.