Electrolux Dishwasher i20 Code: Causes & Fix

What is the Electrolux Dishwasher i20 error?#

i20 on an Electrolux dishwasher is a drain error: the machine did not empty within its allotted time, so it stops with water still in the tub. It is low-risk and often owner-fixable, and because a clogged triple-filter is the most common cause, the first thing to do is remove and clean the filter stack at the bottom of the tub.

i20 on a Electrolux Dishwasher: likely causes and repair cost#

On a Electrolux Dishwasher, the i20 code signals: drain error.

Typical professional repair: $100–$250 · Difficulty: moderate · often owner-fixable

Symptoms that often accompany i20: Standing water in the tub after the cycle; Foul odor from water sitting in the sump; Gurgling sounds during the drain step; Dishes on the bottom rack come out gritty; The cycle stalls and adds time at the drain phase

Technician diagnostic sequence for i20:

1. Remove and clean the triple-filter system at the tub bottom, separating the coarse and fine screens
2. Check the drain hose at the disposal or air-gap connection for a food blockage or a fresh-install knockout plug left in place
3. Verify a proper high-loop or air-gap so dirty sink water cannot siphon back and re-trigger i20
4. Listen for the drain pump hum at the drain step — no sound at all points to a seized motor, a hum without flow points to a jammed impeller
5. Clear the drain check valve of congealed grease, which lets water dribble back and stretch the drain past its timeout

Parts a technician may check or replace: Drain pump assembly; Filter assembly; Drain check valve

Field note: i20 is a "did not drain in time" fault on the Electrolux flow-through platform, and its alias i40 is the very same fault after a second timeout — if the two alternate, suspect an intermittent blockage in the drain check valve rather than a dead pump. Because these dishwashers share a small drain pump with a delicate impeller, a single shard of glass or a fruit sticker is enough to slow the drain into i20 without stopping it entirely; always inspect the sump before condemning the pump.

How to troubleshoot the i20 error yourself#

i20 is frequently a job you can finish yourself, so start at the sump. Remove and clean the triple-filter system at the tub bottom, separating the coarse and fine screens and rinsing away the food film that packs them. Next follow the drain hose to the disposal or air-gap connection and check for a food blockage — and if the dishwasher was recently installed, make sure the disposal knockout plug was actually removed, a classic fresh-install cause. Verify there is a proper high-loop or air-gap so dirty sink water cannot siphon back and re-trigger i20. Then listen at the drain step: no pump sound at all suggests a seized motor, while a hum without water flow points to a jammed impeller — a single shard of glass or a fruit sticker is enough to slow this small pump into i20 without stopping it. You can clear the drain check valve of congealed grease as well, which otherwise lets water dribble back and stretch the drain past its timeout. If the sump, filter, hose, and air-gap are all clear but i20 persists, removing the pump to free or replace the impeller is where a technician takes over. Note i20 and its alias i40 are the same fault after a second timeout — if they alternate, suspect an intermittent check-valve blockage rather than a dead pump.

Is the Electrolux Dishwasher i20 error worth fixing?#

i20 is usually worth fixing and often costs nothing, since a cleaned filter or a cleared hose resolves most cases. When a part is required — a drain pump, filter assembly, or check valve — the professional range is $100 to $250, minor against a comparable new dishwasher. Because these units share a small, delicate-impeller drain pump, the fault is far more often a slow blockage than a dead pump, so always inspect the sump before condemning the pump. On any reasonably aged machine, restoring proper drainage for that price clearly beats replacement.

Electrolux Dishwasher i20: frequently asked questions#

What does i20 mean on an Electrolux dishwasher?#

It is a drain error: the dishwasher did not empty in time, so it stops with water in the tub. The usual cause is a clogged triple-filter or a blocked drain hose.

Is it safe to keep using a dishwasher showing i20?#

There is no safety risk, but water sits in the sump and can smell, and dishes rinse poorly. Clear the filter and hose before running it again.

Can I clear i20 myself?#

Often, yes. Cleaning the triple-filter, checking the drain hose and air-gap, and confirming the disposal knockout was removed fixes most i20 cases. A jammed pump needs a technician.

How much does it cost to repair i20?#

Frequently nothing when the fix is the filter or hose. When a drain pump, filter, or check valve is needed, a professional repair runs $100 to $250.

What is the difference between i20 and i40?#

They are the same drain fault; i40 is i20 after a second timeout. If the two alternate, suspect an intermittent blockage in the drain check valve rather than a failed pump.

Is an Electrolux dishwasher with i20 worth repairing?#

Yes — it is a low-cost, often-free drain fault, so on any reasonably aged machine repair is clearly better than replacement.