Frigidaire · Dishwasher Moderate

i20 — Drain Blocked

i20 means the dishwasher cannot drain — water is not leaving the tub. Usually a clogged filter or drain path.

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

How to fix it

  1. Clean the bottom filter and sump.
  2. Clear the drain hose and air gap; confirm the disposal knockout plug is removed.
  3. Test the drain pump if it still will not drain.

Why it happens

Typical signs: Standing water in the tub · Cycle stops · i20 on the display

  • Clogged filter / drain path Food debris in the bottom filter and sump. Clean first.
  • Clogged drain hose or air gap A blockage at the hose, air gap, or disposal inlet.

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 Drain Pump Common replacement
    Amazon →

Related repair guides

Dishwasher Not Draining — How to Fix Standing Water →How to Clean a Dishwasher Filter (And Why Your Dishes Aren't Clean) →How to Clean a Smelly Dishwasher →

More Frigidaire dishwasher codes

Cd Cd — Door Not Closed / Latched CL CL — Close the door ER ER — Touchpad / Membrane Switch Fault HS HS — Wash Motor Hall Sensor Error i10 i10 — Water Not Detected (Fill) i30 i30 — Leak / Anti-Flood

All Frigidaire codes → All dishwasher codes →

Frequently asked questions

What does the i20 code mean on a Frigidaire dishwasher?

i20 means the dishwasher cannot drain — water is not leaving the tub. Usually a clogged filter or drain path.

What causes the i20 code on a Frigidaire dishwasher?

Clogged filter / drain path: Food debris in the bottom filter and sump. Clean first. Clogged drain hose or air gap: A blockage at the hose, air gap, or disposal inlet.

Is it safe to keep using a Frigidaire dishwasher with a i20 error?

Yes, with caution. This is rated a moderate-severity fault.

How do I fix i20 on a Frigidaire dishwasher?

Clean the bottom filter and sump. Clear the drain hose and air gap; confirm the disposal knockout plug is removed. Test the drain pump if it still will not drain.

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.