You open the dishwasher and get hit with a bad smell. A dishwasher that smells bad is common, and in most cases the fix is a good cleaning, not a new machine. The kind of smell is your best clue. A sour or rotten smell points to trapped food. A sewer smell points to the drain. A burning smell is a safety issue.
This guide covers the common causes, a simple cleaning routine, and when to call a pro. For help in New Braunfels, call New Braunfels Appliance Fix at (830) 240-5230.
Why does my dishwasher smell bad?
The most common causes are a dirty filter, food stuck in the spray arms or door gasket, water left standing in the bottom of the tub, a drain hose that lets dirty water flow back in, a clogged garbage disposal connection, and mineral buildup from hard water. A burning smell is different and can mean a failing heating element or wiring.
Safety first
If you smell burning or see smoke, stop the dishwasher, turn off its breaker and do not run it again until it is checked. Before you clean inside, turn the power off and let the heating element cool.
Common causes and fixes
1. Dirty filter
Most dishwashers made in the last 10 to 15 years have a manual filter in the bottom of the tub. It catches food so it does not clog the pump. If it is never cleaned, that food rots. Twist it out, rinse it under hot water and scrub it with a soft brush.
2. Food in the spray arms and gasket
Small bits of food get stuck in the spray arm holes and in the folds of the door gasket. Wipe the gasket with warm, soapy water. Pull off the spray arms and clear the holes with a toothpick.
3. Standing water in the tub
A little water in the sump is normal. Water above the filter after a cycle is not. It goes stale and smells. This often means a clogged filter, drain hose or pump. If the water does not go down after you clean the filter, our dishwasher repair team can check the pump and drain.
4. Drain hose without a high loop
The drain hose should loop up high under the counter, or go to an air gap, before it connects to the sink drain or disposal. Without that loop, dirty sink water can flow back into the dishwasher and cause a sewer smell.
5. Garbage disposal connection
If the dishwasher drains into the disposal, a clogged disposal can push smelly water back. Run the disposal before you start the dishwasher. A new disposal also needs its knockout plug removed or the dishwasher cannot drain.
6. Hard water buildup
Water in the New Braunfels area is hard. Minerals build a film on the tub, spray arms and filter that traps grease and food. That film holds odors and makes cleaning harder. Hard water film also slows drying; see our guide to a dishwasher not drying dishes.
Dishwasher still smells after cleaning? A local technician can find the cause.
Call Now – (830) 240-5230Quick guide: what does your dishwasher smell like?
| Smell | Likely cause | DIY or pro? |
|---|---|---|
| Sour or rotten food | Dirty filter, spray arms or gasket | DIY cleaning |
| Sewer or rotten eggs | Drain hose loop, disposal or drain clog | DIY check, then pro |
| Musty or moldy | Door kept closed while damp, gasket mold | DIY cleaning |
| Burning plastic | Item touched the heating element | Remove item; pro if it continues |
| Electrical burning | Failing element, motor or wiring | Pro, stop using it |
A simple monthly cleaning routine
- Turn off the power and let the dishwasher cool.
- Remove and clean the filter.
- Wipe the door gasket and the bottom edge of the door.
- Check the spray arms and clear any blocked holes.
- Run an empty hot cycle with a dishwasher cleaner made for your model.
- Leave the door cracked open after cycles so the tub can dry.
If you see water on the floor as well, read our guide to a dishwasher leaking.
How much does dishwasher repair cost in New Braunfels?
Our diagnostic visit is approx. $90–$100, and it is applied to the repair if you go ahead. Labor runs approx. $50–$95 per hour, plus parts if needed. We confirm the total with you before any work starts. Many smell problems are solved with cleaning and a drain hose fix. If a pump, drain part or heating element has failed, we will show you the cost before any work starts.
Prices are approximate and depend on your dishwasher’s brand, model, and the part needed.
Dishwasher repair in New Braunfels
We repair Bosch, Whirlpool, GE, KitchenAid, Samsung, LG, Frigidaire, and most other dishwasher brands. We serve homes in Downtown New Braunfels, the Gruene Historic District, Landa Park, Vintage Oaks, Veramendi, and across Comal and Guadalupe Counties. Learn more about our dishwasher repair in New Braunfels.
Not sure if other appliances need attention? Read 7 Signs Your Appliance Needs Repair (Before It Breaks Down).
Frequently Asked Questions
Why does my dishwasher smell like rotten eggs?
A rotten egg or sewer smell usually comes from food trapped in the filter or drain, or from water that sits in the bottom. Cleaning the filter and checking the drain hose fixes most cases.
Why does my dishwasher smell like burning?
A burning smell can mean plastic touched the heating element, or an electrical part is failing. Stop the dishwasher, turn off the breaker and call for service.
How often should I clean my dishwasher filter?
Many makers suggest about once a month. Homes that run it every day, or that do not rinse dishes, may need it more often.
Can hard water make a dishwasher smell?
Hard water leaves mineral buildup that traps food and grease. That buildup can hold odors. A monthly cleaning cycle with a dishwasher cleaner helps.
How much does dishwasher repair cost in New Braunfels?
Our diagnostic visit is approx. $90–$100, applied to the repair if you go ahead. Labor runs approx. $50–$95 per hour plus parts. You get the price before work starts.
Get your appliance working again
Call New Braunfels Appliance Fix at (830) 240-5230 or send us a message on our contact page. We will confirm the price before any work starts.
Talk to a local appliance technician today.
Call Now – (830) 240-5230