Frigidaire Dishwasher Error Code i20

The i20 code means the dishwasher failed to drain within the required time limit, which is 90 seconds during a normal cycle or 60 seconds during a test cycle. The water level switch did not reach its restore point, so the control board stopped the cycle and displayed the fault. This is most often caused by a clogged filter, a blocked drain hose, or a drain pump problem.

Resetting the dishwasher can temporarily clear the i20 code, but the fault will return if the underlying drain restriction or component failure is not corrected. To reset, cancel the current cycle and allow the control to power down. Address the root cause before running another full cycle.

If the fix is simply cleaning the filter or clearing a drain hose blockage, the repair costs nothing beyond your time. If the drain pump needs to be replaced, parts and labor typically range from around $150 to $350 depending on your location and service provider. A faulty water level switch is generally less expensive to replace than the pump.

Start by removing and thoroughly cleaning the filter assembly at the bottom of the dishwasher tub. Next, check the drain hose for kinks or blockages and confirm the garbage disposal connection is clear. If cleaning these components does not resolve the fault, the drain pump or water level switch may need to be tested and replaced.

The i20 fault is a protective shutdown designed to prevent potential overflow or pump damage, so the dishwasher stopping is the system working as intended. There is no immediate safety hazard, but you should avoid repeatedly forcing cycles through if standing water remains in the tub. Resolve the drain issue before returning the unit to regular use.