Electrolux dishwasher — Error Code i20
The unit is unable to evacuate water within the designated timeframe.
What it means
The i20 error on Electrolux dishwashers signals a drainage malfunction. The system's main control board tracks the analog pressure sensor during the pump-out phase. If the sensor indicates that water remains in the sump after the drain pump has run for a set period (typically 90 to 120 seconds), the board halts the operation and displays the i20 fault to prevent kitchen flooding. This code points to either a physical obstruction in the plumbing, a mechanical failure within the drain pump impeller, or an electrical issue involving the pressure sensor or the control board's output circuit.
Likely Causes
- 1 Clogged Sump FiltersAccumulated debris blocking the coarse or fine filters at the bottom of the basin restricts the flow of water to the drain pump impeller.
- 2 Blockage in the Drain PathA twisted corrugated drain hose, a clogged air gap, or a failure to remove the knockout plug in a new garbage disposal installation will prevent water from leaving the unit.
- 3 Faulty Drain PumpThe drain pump impeller might be stuck due to foreign material like bone fragments or glass, or the motor windings might have experienced an electrical failure.
- 4 Defective Pressure SensorThe analog pressure switch can become coated in grease or fail internally, causing it to incorrectly report water presence to the control board.
- 5 Main Control Board FailureIn rarer instances, the main control board may suffer from a faulty relay or component, preventing the delivery of 120V to the drain pump.
How to clear / reset
To perform a temporary reset of the i20 code, press and hold the Start/Cancel button for 3 seconds to abort the cycle. Then, cut power to the unit at the breaker for 5 minutes to allow the control board to reboot. Note that if water remains in the basin, the pressure sensor will immediately trigger the i20 error again upon power-up. You must manually remove standing water from the sump and clear any obstructions in the filter or drain line for the code to clear permanently.
Common replacement parts
When to call a pro
Contact a professional if the i20 code persists after you have cleaned the filters and checked the drain hose. Testing the drain pump windings or diagnosing a faulty analog pressure sensor requires a multimeter and live voltage testing. If you suspect the main control board, professional diagnosis is vital to avoid unnecessary part replacement. A-Fix Service offers a $90 diagnostic fee (waived if you proceed with the repair) and provides a 1-year warranty on all parts and labor.
FAQs
What is the typical cost for an i20 repair?
If the issue is just a simple blockage, you may be able to resolve it yourself at no cost. If a component like the pressure sensor or drain pump requires replacement, professional service usually totals between $150 and $250.
Is this a DIY-friendly repair?
Yes, provided the cause is a simple kinked drain hose, a blocked garbage disposal connection, or a dirty filter. For electrical or pump motor issues, we suggest calling a technician.
Will the i20 error resolve itself?
No, the error will remain until the water is fully drained from the sump and the pressure sensor detects an empty basin.
How long will the repair take?
Clearing a basic blockage usually takes 15-30 minutes. Replacing a pressure switch or drain pump typically takes a technician 45-60 minutes once the appliance is accessed.
Is it safe to continue using the dishwasher?
The machine will prevent you from starting another cycle until the i20 error is cleared. This safety mechanism is designed to protect your home from potential flooding and water damage.
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