Frigidaire · Dishwasher Moderate

i40 — Error — Clogged Filter or Sump

i40 indicates a clogged filter or sump restricting water flow.

Keep using it?
Yes, with caution
DIY difficulty
Easy
Verified against
owner.frigidaire.com ↗

How to fix it

  1. Remove and thoroughly clean the filter and sump area.
  2. Reinstall the filter fully seated.
  3. Run a cycle to confirm the code clears.

Why it happens

Typical signs: Poor cleaning, slow drain · i40 on the display

  • Food debris in the sump Built-up debris in the sump restricts flow.
  • Clogged fine filter The fine filter is packed and needs cleaning.

Parts you may need

If diagnosis points to a failed part, these are the common replacements. As an Amazon Associate we earn from qualifying purchases.

  • Frigidaire Dishwasher Filter Common replacement
    Amazon →

More Frigidaire dishwasher codes

Cd Cd — Door Not Closed / Latched CL CL — Close the door ER ER — General electronic control fault Hot Hot — Water inlet too hot HS HS — Wash Motor Hall Sensor Error i10 i10 — Water Not Detected (Fill)

All Frigidaire codes → All dishwasher codes →

Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician. Verified against manufacturer documentation: owner.frigidaire.com.