Electrolux groups i20, C2, F2 and two-beep warnings with a dishwasher drainage fault. Standing water can come from a blocked sink siphon, dirty filter system, kinked or incorrectly installed drain hose, or a blanking plug left in the siphon after installation. Turn the machine off and disconnect power before reaching into the sump. Remove food residue from the filters and refit every element in its locked position; do not reach blindly into the pump or use chemical drain cleaner inside the appliance. Check the external hose and the sink connection without lengthening or rerouting them beyond the model instructions. Test one short programme after the path is clear. If the code returns or the pump runs without moving water, Electrolux directs the user to authorised service.
Models covered
Safety first
- Disconnect electricity before removing filters and keep hands out of the pump opening; broken glass may be hidden in the sump.
What the symptom may indicate
Checks in the right order
- Check the sink siphon
Verify the sink drains freely and the dishwasher branch is open and not blocked.
- Clean and lock the filters
Unplug, remove food residue, rinse the filter set and refit it in the exact locked position.
- Inspect the drain hose
Make sure the external hose is not kinked, crushed, damaged or routed outside the installation limits in the manual.
- Remove a new-installation plug
If recently connected, confirm the blanking plug was removed from the siphon branch before reconnecting the hose.
Stop and get qualified help when
- Stop for damaged hoses, leaking water, a jam that cannot be reached safely or i20/C2/F2 returning after the external path is clear.
Next step
Repair, replace a part, or arrange a diagnosis?
Use the checks and stop conditions above to choose a cautious next step. A symptom alone never proves that the appliance has failed.
Resolve it without buying anything
Complete the 4 user-accessible checks in order. If normal operation returns and no warning sign remains, no replacement is indicated.
Replace only the confirmed part
If the checks isolate a worn or blocked component, match its complete reference to the exact appliance model before ordering.
This guide does not identify a replacement part. Do not order a generic component from the symptom alone.
Arrange a diagnosis before replacing the appliance
Stop at any warning sign listed above. A qualified diagnosis should confirm that repair is unsafe, unavailable or uneconomical before an appliance replacement is considered.
Sources used
- Electrolux — Electrolux identifies i20, C2 and F2 as drainage warnings and documents siphon, filter, hose and installation-plug checks.
Last checked: 30 August 2026