What i40 usually means
i40 usually belongs to a water-level, leak, or overflow-related category on supported Frigidaire dishwashers.
Codes can vary by exact Frigidaire dishwasher model number, production year, and regional design. Use this as first-pass guidance, then confirm the model-specific manual or manufacturer support page before opening panels or replacing parts.
First checks
Cancel the cycle if safe, inspect around the lower door and under the sink, and check whether the sink drain is backing up.
Oversudsing, poor draining, or a visible leak can all lead to water-level warnings.
- Check for visible floor water.
- Inspect the sink drain connection.
- Look for foam or wrong detergent.
- Use service for hidden leak tracing.
When to stop
Stop if water reaches the floor, i40 returns immediately, or the drain pump keeps running.
Keep the full model number, exact i40 display text, cycle name, and timing ready before contacting Frigidaire support or a qualified technician.
Model numbers affected
Commonly searched model families include built-in dishwashers, front-control dishwashers, top-control dishwashers, and compact dishwashers.
This is not a confirmed model-number list. Match the exact code to the full model number on the appliance tag before ordering parts, opening panels, or booking service.
Related code pages
Related problem topics
Related troubleshooting guides
FAQ
What is the main point of Frigidaire Dishwasher i40 Code: Leak or Water Level Warning?
i40 usually belongs to a water-level, leak, or overflow-related category on supported Frigidaire dishwashers.
What should I check first?
Cancel the cycle if safe, inspect around the lower door and under the sink, and check whether the sink drain is backing up.
When should I stop troubleshooting?
Stop if water reaches the floor, i40 returns immediately, or the drain pump keeps running.
Editorial note
This guide is independent educational content. It does not replace the model-specific manual, official manufacturer support, or qualified repair service.