Opening a smelly dishwasher isn’t pleasant, and a cleaning tablet can feel like the quickest answer. First, take a look at the filter, door edges, and any water left behind.
Food caught in an accessible part and water returning through a drain connection call for different jobs. A burning smell changes the situation altogether: stop using the appliance and arrange help.
Food residue: the accessible cleaning route
With the dishwasher cool and power disconnected, inspect the user-removable filter, accessible door edges, and visible food scraps. Do not reach blindly into a sump that may contain broken glass.
Rinse the filter by its instructions and lock it back into place. Wipe approved surfaces with the permitted method. A forgotten food fragment calls for removal; it is not a reason to pour several ingredients into the appliance.
If the manual specifies a cleaner or maintenance cycle, use it after the accessible debris is removed. Its product, placement, and cycle belong together.
Water: check when it arrives
A little clean sump water may be normal for the design. Dirty water across the tub or water returning while the appliance is idle is a different matter. GE’s retained-water guidance discusses water and backflow as separate observations.
Notice whether sink use coincides with the smell or returning water. If the shared drain is involved, another cleaning cycle may leave the cause untouched. Use the water-location and timing guide for that route.
A burning odor changes the job
Stop use for a burning electrical smell, smoke, or abnormal operation. Let the appliance cool and obtain model-specific support. Do not repeatedly heat an unexplained odor to make it disappear.
A visible foreign item and an electrical fault are different possibilities, but a smell description alone does not establish which is present. Do not remove fixed guards or probe wiring to follow a general cleaning article.
What a useful cleanup result looks like
Recheck the same area after the approved procedure and after the cleaner’s scent has faded. Is accessible food gone? Is drainage normal? Does the odor return only when the sink empties?
Those observations tell you more than a freshly scented tub. If the same smell returns quickly, record its timing instead of escalating cleaner strength.
A few shortcuts worth skipping
- Bleach mixed with vinegar, detergent, or another cleaner.
- Hand dish soap added to a dishwasher maintenance cycle.
- A drain chemical used inside the tub.
- A vinegar procedure borrowed from a model whose manual differs.
For vinegar specifically, the manufacturer-instruction review explains why a permitted occasional rinse is different from routine unrestricted use.
Keep the odor from becoming a recurring project
Scrape off large scraps and inspect the filter as the manual directs. Keep the correct maintenance routine without turning every inspection into a chemical cycle. Our schedule guide separates those jobs.
If smell remains with normal drainage and completed maintenance, contact support with the model, strongest location, timing, and products already used. If the sink also smells, include that shared symptom and use the sink guide. Two smelly fixtures may need one plumbing assessment rather than two stronger cleaning recipes.
Updated October 8, 2026.
James L is the editorial pen name used by the operator of Clever Nest Lab. The site publishes English-language cleaning and appliance-care guides using manufacturer instructions and cited sources, with AI assistance in research, drafting, and editing. Model examples are research-based, not personal repair reports. About the editor · Editorial policy · Contact & corrections