Model symptom

Frigidaire dishwasher shows i20 and does not drain

Frigidaire documents i20 as a no-drain condition, so first checks stay with accessible disposer, drain hose and filter conditions.

Applies to

Frigidaire Dishwasher Error Codes; US. This page is not a brand-wide diagnosis.

The dishwasher may show i20, leave water in the tub, or fail to complete the drain part of a cycle.

Confirm the display reads i20.
Check that the disposer knockout plug has been removed if the dishwasher drains through a disposer.
Check that the drain hose is not blocked, obstructed, pinched, or restricted.
Make sure the glass trap or filter is clear of food soils if safe access is available.

Stop if water remains, leakage appears, or the code returns after accessible drain-path checks.

Record model label, exact code, standing water level, drain path, filter condition, disposer setup, and resets tried.

This symptom page is attached to Frigidaire Dishwasher Error Codes. It is not a brand-wide diagnosis.

Dishwasher Error Code i20 - Unit did not drain properly

Frigidaire documents i20 as a not-draining code and lists disposer knockout, drain hose, drain height, glass trap or filter, and reset checks.