What Foul Odor means on your Kenmore dishwasher (kenmore dishwasher foul odor)
A kenmore dishwasher foul odor problem is almost always food debris trapped somewhere in the system — most commonly in the removable filter screen at the bottom of the tub, which needs periodic hand cleaning on most modern Kenmore dishwashers. A partially clogged drain line or standing water from a partial drain issue can also produce a sour or musty smell.

Symptoms
The signs below help confirm you are dealing with this condition rather than a different problem on your Kenmore 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.
- A rotten or sour smell noticeable when opening the dishwasher
- The smell is stronger right after a cycle finishes
- Visible food debris or a film buildup in the filter area
- The smell has developed gradually as cleaning performance also declined
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 Kenmore parts.
- Dirty or clogged filter screen — trapped food debris decomposes and produces odor over time
- Partially clogged drain line — standing water or slow drainage allows odor-causing buildup
- Grease or food residue on spray arms or tub walls — buildup accumulates when cleaning performance is already reduced
- Standing water from a partial drain issue — see the not-draining symptom entry for that diagnosis path
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.
- Remove and thoroughly wash the filter screen at the bottom of the tub — check the owner’s manual for the model’s specific filter type and removal method.
- Run an empty hot-water cycle with a dishwasher-cleaner product or a cup of white vinegar in a top-rack-safe container.
- Wipe down the door gasket and tub walls for visible residue.
- Check for standing water at the bottom of the tub, which points toward a drain issue rather than just odor.
Parts a technician may replace
Depending on what the diagnosis shows, a technician may inspect, test, or replace the filter screen, drain hose, spray arms, and tub gasket. The correct part for your Kenmore 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
If odor persists after cleaning the filter and running a cleaning cycle, an experienced technician should check the drain line and pump for trapped debris on your Kenmore’s specific OEM platform. This condition is rated Low severity, so there is no emergency — but if the same Foul Odor keeps returning after the checks above, a technician should confirm the cause before any part is replaced. 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 Kenmore dishwasher model and serial number ready so the right part for your exact build can be matched before the visit and the Foul Odor condition resolved in as few trips as possible.
Related help and Kenmore resources
If the Foul Odor condition keeps returning after these checks, book Kenmore 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 not draining symptom. For full manufacturer specifications and model lookup, visit kenmore.com.