Frigidaire Dishwasher Error I20

⚡ Quick Answer: The Frigidaire dishwasher I20 error code indicates a drainage problem, typically occurring when the unit fails to drain properly within the expected t... ✅ DIY Fixable

What Does Error I20 Mean?

The Frigidaire dishwasher I20 error code indicates a drainage problem, typically occurring when the unit fails to drain properly within the expected time. Symptoms include the dishwasher stopping mid-cycle, standing water in the tub, and the display flashing. Common causes are clogged filters, blocked drain hoses, incorrect hose height, or a malfunctioning drain pump. Addressing these issues promptly is essential to restore proper function.

Common Symptoms:

  • Dishwasher stops mid‑cycle and displays I20 code when trying to drain
  • Standing water remains in dishwasher tub after cycle
  • Dishwasher fails to complete wash sequence due to drainage timeout

Possible Causes

  • Clogged filters or food debris obstructing drainage (high)
  • Blocked or kinked drain hose (high)
  • Incorrect drain hose height/setup resulting in poor drain performance (medium)
  • Drain pump malfunction or blockage at pump impeller (medium)

How to Fix Error I20

DIY Fix Basic Drainage Troubleshooting

  1. Turn off the dishwasher and disconnect power.
  2. Remove the bottom rack and clean out the filters and sump area of any food debris or grime.
  3. Check the drain hose behind the dishwasher for kinks, obstructions, or improper routing and ensure the hose is looped to the correct height (minimum ~32 inches).
  4. Reconnect power and run a short drain or rinse cycle to see if the I20 code clears.

Technician Only Inspect and Service Drain Pump & Internal Drain Path

  1. Disconnect power and access the dishwasher’s lower access panel.
  2. Check the drain pump impeller for lodged debris or mechanical seizure; clear obstructions if present.
  3. Verify the pump motor operation with appropriate tools; replace the pump if it fails to operate or does not move water.
  4. Check related wiring and connections to the drain pump for corrosion or looseness.

Parts needed: drain pump assembly, drain hose, filters/sump assembly

🛑 When to Call a Pro:
  • If the I20 code persists after cleaning filters and hose inspections.
  • If the drain pump is unresponsive or emits unusual sounds indicating failure.
  • If there are signs of water leakage or electrical faults during diagnosis.

Technical Specifications

wattage 60W
component Drain Pump
resistance 10-30 ohms
part_number 154567401
voltage_rating 120V AC

Common Questions

What does I20 error mean on frigidaire dishwasher?

I20 error means the dishwasher has a drainage issue, failing to lower the water level in time.

Can I fix frigidaire dishwasher I20 error myself?

Yes, you can clean filters, check the drain hose, and inspect for kinks.

How much does it cost to fix I20 error?

Estimated repair costs range from ¥10,000 to ¥30,000, depending on parts and region.

When should I call a technician for I20?

Call a technician if the error persists after troubleshooting or if the pump is unresponsive.

Sources & References

Data last verified: 2026-02-19

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