Q:

What causes odors such as rotten eggs, in a dishwasher?

A:

Quick Answer

There are many things that can cause odors in dishwashers, such as a clogged filter, food debris, blocked water jets and backfilling. Backfilling is caused by waste water that returns to the machine when it is not in use and this happens if the machine is not fitted correctly.

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Full Answer

Food debris is a common problem in dishwashers due to the nature of the machine. The odor can come from the food's original smell but because the machine is hot and humid, food will also decompose. This can be combated by checking the spinning arm and the bottom of the machine for any food debris and cleaning it regularly. If there is a problem with food accumulation, scraping any excess food off of dishes before placing them in the machine can help. A clogged filter stops water from draining properly and accumulates food debris which can cause odors. Each manufacturer has different instructions on how to clean a filter and these are detailed in the machine's manual.

The water jets in the machine can get clogged at times; it is important to check and clean them so that clean water can flow more easily. If dishes build up in the dishwasher for a couple of days, a rinse/hold cycle can be used every day to keep odors at bay. Additionally, adding three tablespoons of baking soda to the bottom of a dishwasher can help absorb odors.

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Related Questions

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    What causes a smelly dishwasher?

    A:

    Dishwasher odors are most commonly caused by food particles that build up in the screen at the bottom of the machine over time. The trapped food develops bacterial growth, which leads to unpleasant smells. The odors may also be caused by rotted food scraps that have fallen down into the lower dishwasher tub. Additional causes include garbage disposal blockages and dirty door gaskets.

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    What causes standing water in the dishwasher?

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    A clogged drain is the most common cause of standing water in a dishwasher. Users should ensure the drain is free of food and other debris.

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    Why do dishwashers need salt?

    A:

    The addition of salt to a dishwasher softens hard water and prevents the mineral deposits that cause scaling. Scaling is the insoluble scummy ring in the bathtub, for instance. Scaling also clogs pipes, coats the inside walls of appliances such as coffeemakers and causes water heater failure.

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    How old is my dishwasher?

    A:

    The age of a dishwasher is dependent on the date of manufacture. A homeowner can find out the age of a dishwasher by looking at the manufacturer sticker printed on the appliance. Subtract the year of manufacture from the current year to learn how old the appliance is.

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