Frigidaire dishwasher error code

i40

Clogged filter or sump

Food soil has built up in the filter or sump and is blocking water flow.

Try these free fixes first

Unplug the dishwasher before opening any panel.

  1. Turn off power to the dishwasher before cleaning.
  2. Remove the glass trap and filter and rinse out all food debris.
  3. Wipe out the sump area under the filter.
  4. Reinstall the filter securely and run the dishwasher again.
  5. Scrape plates before loading to prevent future buildup.

Still showing i40?

If the error returns right after a thorough cleaning, a technician should inspect the sump and drain pump.

Filter assemblyCheck that the part matches your exact model number (usually on a sticker inside the door or on the back).Find the part
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Questions people ask

What does i40 mean on a Frigidaire dishwasher?

i40 on a Frigidaire dishwasher means: clogged filter or sump. Food soil has built up in the filter or sump and is blocking water flow.

How do I fix Frigidaire dishwasher error i40?

Turn off power to the dishwasher before cleaning. Remove the glass trap and filter and rinse out all food debris. Wipe out the sump area under the filter. Reinstall the filter securely and run the dishwasher again. Scrape plates before loading to prevent future buildup.

When should I call a repair technician?

If the error returns right after a thorough cleaning, a technician should inspect the sump and drain pump.

Related dishwasher codes

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Source: Frigidaire official support · Reviewed 2026-10-01