Frigidaire Dishwasher Error Code i40: Meaning & How to Fix It

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

Frigidaire dishwasher error code i40 means: Food soil has built up in the sump. [1] Keep using it? Not until the cause is fixed. Start with the owner checks below, beginning with: clean the filter.

Quick facts

Code	i40
Also shown as	None listed by the manufacturer
Brand / appliance	Frigidaire dishwasher; same code and guidance on Electrolux dishwashers
System	Drain
Official meaning	Food soil has built up in the sump. [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 i40 means on a Frigidaire dishwasher

Food soil has built up in the sump. [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 i40 (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.

Clean the filter. Clean the glass trap and filter, then rerun the cycle.

Parts that may be involved

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

Filter

When to call a technician

The code continues
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 i40 mean on a Frigidaire dishwasher?

Frigidaire lists i40 as follows: Food soil has built up in the sump.

Is it safe to keep using the dishwasher with i40?

Not until the cause is fixed.

Can I fix Frigidaire dishwasher error i40 myself?

Only with the owner checks on this page, starting with: clean the filter. 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.