Replacing a dishwasher pump is a moderately easy DIY project that typically takes 1 to 2 hours. It generally involves sliding the dishwasher out of the cabinet, unhooking hoses, and swapping out the part using basic tools. It is highly manageable if you are comfortable with basic tools and plumbing.
If a more complicated problem such as a failed drain pump or defective electronic control board is preventing the dishwasher from draining, then you'll need to consider replacing it if your dishwasher is older than 7 years and the repair will cost more than ½ the price of installing a new dishwasher.
How do I know if my dishwasher drain pump is clogged or broken? If your dishwasher isn't draining properly, check for standing water, unusual noises, or error codes. A clogged pump may cause slow drainage or gurgling sounds, while a broken pump often results in no drainage at all and a silent or humming motor.
Replacing a dishwasher pump costs between $200 and $600 on average, including both parts and labor. The cost depends heavily on whether you need a smaller drain pump or the larger, more complex circulation pump, and whether you do the repair yourself or hire a professional.
Yes, a 5-year-old dishwasher is usually worth repairing. The average lifespan of a dishwasher is 8 to 12 years, and a 5-year-old unit is generally past its initial manufacturer warranty but still has plenty of life left to justify the cost of minor fixes.
The average dishwasher lasts 9 to 12 years. With meticulous maintenance and light usage, some high-end or European models (like Bosch) can stretch up to 15 years, while cheaper models or those run daily may wear out in 7 to 9 years.
The control board or electronic control unit is typically the most expensive part in a dishwasher. It manages all the dishwasher's functions, such as the wash cycles, water temperature, and the timing of the washing and drying processes.
We recommend checking for food debris around the drain and listening closely during the draining stage. A quiet hum that doesn't lead to movement of water often signals the pump motor is spinning but not engaging properly. If left unresolved, this can lead to stagnant water and unpleasant smells inside the dishwasher.
Clogged Filter or Drain Basket
The most common reason for drainage issues is a clogged filter. Your dishwasher's filter catches food particles, grease, and debris to prevent them from clogging the drain pump. Over time, this buildup can become so thick that water can't pass through.
Plumbers can fix dishwashers in all states of disrepair, whether they're not draining or making sounds during a wash cycle. In particular, you'll want to call a plumber if: Water continues pooling at the bottom despite troubleshooting. The drain pump or motor is malfunctioning.
The most common dishwasher fault is clogged or poor drainage. This occurs when food debris, grease, or foreign objects (like broken glass or food particles) block the primary drain filter, the drain hose, or the garbage disposal connection, leaving dirty, standing water at the bottom of the unit.
To check a dishwasher pump, first turn off the power and water. Inspect the filter and pump for debris, clear the drain hose, and test the pump’s electrical continuity with a multimeter. If the motor is seized, humming loudly, or has no electrical continuity, it usually requires replacement.
If the pump completely fails: The dishwasher won't drain or clean properly. You might see standing water inside the machine. It could trigger an error code or safety lockout.
Dishwasher pumps typically last 7 to 10 years. The lifespan depends on usage frequency, hard water mineral buildup, and maintenance. The two main types of pumps—circulation pumps and drain pumps—wear down naturally over time from exposure to food particles and detergents.
Symptoms of a clogged dishwasher pump include standing dirty water at the bottom of the tub, gurgling noises, foul odors, and a distinct high-pitched whine or low humming noise during the drain cycle. Your dishwasher may also fail to complete cycles or throw drainage-related error codes.
There may be a few reasons why your dishwasher won't drain. The most common source of clogs often comes from a blockage in the dishwasher's filter. Or, you may have an issue with your dishwasher's air gap, drain valve, drain hose or even your garbage disposal, causing your dishwasher to clog.
The average lifespan of a dishwasher is 10 to 12 years. With proper maintenance and light use, some machines can last 15 years or more, while heavy use or high heat cycles may reduce this lifespan.
Replacing a dishwasher pump is generally worth it if the appliance is less than 5–6 years old and you can do the repair yourself. However, if your dishwasher is older or you need to pay for professional labor, the repair cost can exceed 50% of a new machine, making replacement more practical.
Replacing a dishwasher pump costs between $200 and $600 on average, including both parts and labor. The cost depends heavily on whether you need a smaller drain pump or the larger, more complex circulation pump, and whether you do the repair yourself or hire a professional.
To force a dishwasher to drain, press and hold the Cancel, Drain, or Reset button for 3 to 5 seconds. If that fails, start a new, short cycle and cancel it after a few seconds to trigger the drain pump. Always ensure the garbage disposal is clear, as it is a common cause of blockages.
Common drain pump failure symptoms include: Incomplete cycles: Have you recently checked a wash load only to discover a full reservoir or soaked clothes? These issues indicate incomplete cycles, a hallmark of a failing drain pump. Stinky smells: You might detect rotten or decay odors wafting from your washing machine.
7 Most Recommended Dishwashers
People put crumpled aluminum foil in the dishwasher primarily as a hack to make silver or stainless steel utensils and cutlery look shinier.
Issues like leaks, poor drainage, unclean dishes, foul odors and overall appliance operation, though infrequent, can be the most common problems with a dishwasher that isn't operating properly. In some cases, you can resolve these issues with a little elbow grease and the help of your product manual.