i40 Moderate Easy DIY

Frigidaire Dishwasher i40 Error — Clogged Filter or Sump

Frigidaire Dishwasher · Error code i40

What i40 Means

i40 indicates a clogged filter or sump restricting water flow.

Symptoms

  • Poor cleaning, slow drain
  • i40 on the display

Common Causes

1
Food debris in the sump

Built-up debris in the sump restricts flow.

2
Clogged fine filter

The fine filter is packed and needs cleaning.

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.

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.

Common replacement Frigidaire Dishwasher Filter View on Amazon→

More Frigidaire Dishwasher Codes

Cd Cd — Clean indicator CL CL — Close the door ER ER — General electronic control fault Hot Hot — Water inlet too hot HS HS — Heater sensor fault 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.