ERROR CODEi20Diagnostic reference

Frigidaire · Dishwashers

Frigidaire dishwasher i20: The dishwasher has not drained properly

THE SHORT ANSWER

The dishwasher has not drained properly.

Frigidaire identifies i20 with this condition: The dishwasher has not drained properly.

First safe check

Inspect the accessible hose for a restriction and check the glass trap or filter for food debris.

Applies to

Frigidaire dishwasher families covered by the cited manufacturer support pages; confirm the complete model before applying guidance.

Before you start

Disconnect disposer power before any work near it. Use the owner manual for filter removal.

Go to safe checks

WHAT YOU MAY NOTICE

Symptoms to record

  • i20 appears on the appliance display.

WORK THROUGH THE BASICS

Safe troubleshooting checks

0 of 2 checked

Use the checkboxes to keep track as you read. Stop at any warning or step that does not match your appliance.

  1. Have the installer verify the disposer knockout and drain-hose height on a recent installation. Clear accessible restrictions safely.

    What to note

    Water has an unobstructed route out.

  2. Use Cancel according to the model controls. Persistent i20 after cleaning and installation checks needs service.

    What to note

    The dishwasher drains without repeating the alert.

THE DETAILS MATTER

Scope & troubleshooting notes

Installation height

The cited support page specifies a minimum drain-hose height of 32 inches; confirm the arrangement in your model installation guide.

YOUR NEXT DECISION

When to stop and get help

Arrange service if i20 persists or returns after the documented owner check.

Record what you see

Keep the full model number, exact displayed code, and your observations together for the next conversation.

Use the right support

Contact the manufacturer or a qualified appliance technician when the guide calls for service.

Frigidaire support

THE EVIDENCE

Sources & verification

Our explanations are editorial summaries of the documentation below. They do not replace the instructions for your exact appliance.

  1. Dishwasher Error Code i20 - Unit did not drain properly

    Frigidaire · Manufacturer support · Checked

    Code-specific explanation and owner troubleshooting — Frigidaire dishwasher families covered by the cited manufacturer support pages; confirm the complete model before applying guidance.

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