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How long do dishwashers run?

Dishwashers are the ultimate kitchen assistants—whether you’re cleaning up after a Thanksgiving feast or a Tuesday night dinner, these appliances help make short work of your plates, glasses and silverware. But sometimes dishwasher cycle times can last longer than you’d expect. Is this normal, or a sign that something is wrong? Read on to understand why dishwashers can sometimes take a while to complete their cycles and how to know if your appliance is performing at its best.

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How long does a dishwasher cycle take?

While it depends on the cycle you choose, most dishwasher cycle times can last anywhere from 1.5 to 4 hours. The average dishwasher running time can vary based on sensor readings, how dirty your dishes are or how long it takes to heat water between cycle phases.

Dishwasher cycle time comparison


Run time

Prewash CyclePrewash Cycle 6 - 8 minutes6 - 8 minutes
Sanitize CycleSanitize Cycle 3 - 3.5 hours3 - 3.5 hours
Normal WashNormal Wash 1.5 - 2 hours1.5 - 2 hours
Sani Rinse CycleSani Rinse Cycle Adds 5 minutes to 1 hour to wash cycleAdds 5 minutes to 1 hour to wash cycle
Quick WashQuick Wash 30 - 60 minutes30 - 60 minutes
Heavy WashHeavy Wash 2.75 to 4 hours2.75 to 4 hours
Hi-Temp Wash CycleHi-Temp Wash Cycle Adds 5 - 13 minutes to wash cycleAdds 5 - 13 minutes to wash cycle
Sensor Wash CycleSensor Wash Cycle 2 - 3.25 hours2 - 3.25 hours

Has the average dishwasher run time increased?

If you used to have an older dishwasher, you may remember that it likely took less time to wash your dishes than your newer dishwasher. That’s because of advances in technology, as well as changes in federal energy and water use guidelines.

Today’s dishwashers use less water and energy than older models, making them more efficient than dishwashers in the past. That means they need to run longer to get the same level of performance and allow sensors to assess whether your dishes are being properly cleaned.

How long should a dishwasher run?

If you have a new dishwasher, you may notice that your first cycle runs for a fairly long time. This could be due to sensor calibration, so don’t interrupt this cycle! Instead, let it run its course. This will help your sensors adjust to ensure good performance. Check out this explanation of dishwasher cycles for their typical cycle times and uses.

Why does my dishwasher run so long?

If subsequent dishwasher cycle times seem to take longer than necessary, there are a few possible explanations. First, it may be due to your dishes. If your dishes are especially dirty, the dishwasher sensors will default to a longer wash cycle to ensure they’re cleaned properly. 

If you have hard water, limescale or mineral buildup, this could interfere with sensors and cause them to default to a longer setting. Using affresh® dishwasher cleaner tablets1 on a monthly basis can help clear away this build-up. If your machine stops running at all, read the steps to troubleshoot and reset a dishwasher.

How do you fix a dishwasher that’s running too long?

If you’re still concerned about your dishwasher’s cycle times, try timing several cycles to find out how long they last. Compare your results to the cycle times listed in your user guide. If there are major discrepancies, you may need to contact a technician to fix your dishwasher.

For Whirlpool® appliances, you can schedule service online or by phone: 1-800-253-1301 Monday–Friday, 8AM-8PM (EST).

How often should you run your dishwasher?

Your dishwashing schedule can vary depending on your household size and how many dishes you go through in a given week. Generally, you should run your dishwasher at least once a week.

Should I run my dishwasher every night?

You can wait to run your dishwasher when you have a full load of dishes, glasses and utensils to clean. You do not need to run your dishwasher every night. Some manufacturers recommend running your dishwasher at least once a week.

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Shop Whirlpool® dishwashers

Make the most of your time by investing in a dishwasher with a 3rd rack to streamline mealtime clean up. With a variety of features like Sensor Cycle and 1-Hour Wash Cycle on select models, dishwashers from Whirlpool brand are designed to keep up with your family’s needs.

Learn more about dishwashers from Whirlpool brand

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1. affresh® brand products and the recommending brands’ products are all owned and distributed by Whirlpool Corporation.