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Frigidaire·Dishwashermedium severity
Frigidaire Dishwasher Error Code i20
Drain fault
Common Causes
- 1Clogged drain filter
- 2Garbage disposal knockout not removed
- 3Drain hose kinked
- 4Drain pump blockage
Step-by-Step Troubleshooting
- 1
Remove and clean the drain filter assembly at the tub bottom
- 2
If connected to disposal, verify the knockout plug was removed during installation
- 3
Check drain hose for kinks and ensure high-loop or air-gap installation
- 4
Listen for drain pump hum — no sound = motor failure
Pro Diagnostic Tip
The disposal knockout plug being left in place during installation is the single most common cause of i20 on new Frigidaire dishwashers. Check this first.
You Might Also Notice
- •Standing water in tub after cycle
- •Foul odor from dishwasher
- •Gurgling sounds during drain
Parts, Cost & Difficulty
Repair Difficulty
Moderate — Some Experience NeededEstimated Repair Cost
$75–$250
Parts + labor. Free diagnosis with repair.
Parts That May Need Replacement
5304506681 drain pump assembly5304517868 filter assembly
Do You Have the Right Tools?
Bearing puller set ($120), drum spider wrench ($85), multimeter ($85), and diagnostic software. Our technician arrives with $15K+ in professional tools — your diagnostic is free.
Licensed & Insured · 90-Day Warranty · Same-Day Service
What This Repair Involves
Here's what a professional technician does to resolve this issue:
Clean drain filter and check disposal knockout
This repair requires bearing pullers, drum spider wrenches, and diagnostic software for control board calibration. Most homeowners find it safer and more cost-effective to have a licensed technician handle it.
Safety First — Know the Risks
High-voltage components and pressurized water lines create flood and shock risk. A single loose fitting can cause thousands in water damage. Our techs are licensed and insured — let them handle the risk.
Licensed & Insured · 90-Day Warranty · Same-Day Service
Ready to Get This Fixed?
Don't let error code i20 disrupt your day. A professional diagnosis takes about 30 minutes — and it's free when you proceed with the repair.
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Frequently Asked Questions
What does Frigidaire error code i20 mean?
Frigidaire error code i20 indicates: Drain fault. This is a medium-severity issue affecting your dishwasher.
How do I fix Frigidaire error code i20?
Remove and clean the drain filter assembly at the tub bottom Then, If connected to disposal, verify the knockout plug was removed during installation Then, Check drain hose for kinks and ensure high-loop or air-gap installation There are 1 more steps — see the full troubleshooting guide above. If these steps don't resolve the error, contact a professional.
How do I know if my dishwasher has error i20?
Besides the error code on the display, common signs include: Standing water in tub after cycle; Foul odor from dishwasher; Gurgling sounds during drain. If you notice any of these symptoms, check your dishwasher's display panel for error code i20.
How much does it cost to fix Frigidaire i20?
Repair costs for Frigidaire i20 typically range from $75 to $250 depending on the specific cause and parts needed. EasyBear offers free diagnosis when you proceed with the repair. Call (415) 795-7300 for a same-day appointment.