What i90 means on your Electrolux dishwasher (electrolux i90 error)
An electrolux i90 error — also grouped as i91 through i99 — means a configuration or checksum problem on the control board of your Electrolux dishwasher. Electrolux directs this code family to service rather than a home fix. Unplugging for an extended period can occasionally clear a transient version.

Symptoms
The signs below help confirm you are dealing with this condition rather than a different problem on your Electrolux dishwasher. You may notice one of them or several together, and they can appear gradually or suddenly after a power event, a wash or cook cycle, a spill, or recent installation or service.
- The dishwasher will not start a cycle
- The display shows i90 (or i91–i99) at power-up
- Settings behave incorrectly or reset
- The control panel is unresponsive
Common causes
Several different problems can produce these symptoms. Working through the most likely causes in order separates a quick owner-level check from a problem that needs trained service and the correct Electrolux parts.
- Control-board configuration or checksum issue — the board’s stored configuration is invalid or corrupted
Troubleshooting steps you can try
Work through these checks in order before calling for service. Stop wherever you are unsure, or where mains voltage, gas, a hot oven cavity, water, or a sealed component is involved, and hand the rest to a qualified technician.
- Unplug the dishwasher, or switch it off at the breaker, for at least 2 hours.
- Plug back in and attempt a normal cycle.
- If i90 (or i91–i99) returns, do not keep retrying resets.
- Book service for the control board.
Parts a technician may replace
Depending on what the diagnosis shows, a technician may inspect, test, or replace the user-interface board, wiring, and power/control board. The correct part for your Electrolux dishwasher is matched from the model and serial number, and genuine OEM components are fitted through trusted parts suppliers rather than generic substitutes so performance, safety, and the appliance long working life are all protected. Confirming the failed part before ordering avoids replacing more than the problem actually requires.
When to call a technician
i90 (and the i91–i99 group) is a control-board-level problem that Electrolux itself directs to service — book an experienced technician rather than troubleshooting further at home. Because this condition is rated High severity, it is safest to stop using the dishwasher and arrange service promptly rather than keep retrying, and to shut off power or water at the source if anything looks, smells, or sounds unsafe. As an independent repair service we are not affiliated with the manufacturer, and we work only with experienced, skilled technicians and genuine OEM parts from trusted parts suppliers, with our workmanship backed by a 30-day labor warranty. When you book, have your Electrolux dishwasher model and serial number ready so the right part for your exact build can be matched before the visit and the i90 condition resolved in as few trips as possible.
Related help and Electrolux resources
If the i90 condition keeps returning after these checks, book Electrolux dishwasher repair, browse our dishwasher error-code guides and step-by-step repair guides, or schedule service in your area on our locations page. See also the related i80 memory error. For full manufacturer specifications and model lookup, visit electrolux.com.