20 Most Common Dishwasher Replacement Parts

common dishwasher replacement parts
Table of Contents

If you’d like to see the most commonly substituted parts for freezers or stoves, you’re invited to peruse the articles below.

25 Most Common Freezer Replacement Parts

13 Most Common Gas & Electric Stove Replacement Parts

Finding the Right Dishwasher Parts for Your Needs

  • Maintaining and repairing appliances, including dishwashers, requires the right replacement parts.
  • Whether you’re a seasoned DIYer or want to save on repair costs, having reliable dishwasher parts is crucial for keeping your appliance running smoothly.

Dishwasher Maintenance and Common Issues

  • Ensure you source genuine parts from reputable suppliers.
  • Genuine components are designed for your specific dishwasher model, made from high-quality materials, and guarantee optimal performance and longevity.
  • Many online retailers specialize in providing reliable replacement parts for various appliances, including dishwashers.
  • Conduct thorough research and read customer reviews to verify the reputation of the supplier before making a purchase.

Prioritizing Quality and Authenticity

  • When seeking dishwasher parts for repair or maintenance, prioritize quality and authenticity.
  • Source parts from reputable suppliers offering reliable replacements tailored specifically for your dishwasher model.
  • This approach allows you to address common dishwasher issues, ensure optimal performance, and save on repair costs.

1. Spray Arm

Dishwasher spray arm replacement part

The Importance of the Spray Arm

  • The spray arm is a crucial component of any dishwasher, responsible for evenly distributing water throughout the dishwasher during the wash cycle.
  • Over time, the spray arm may become clogged with debris or damaged due to wear and tear.
  • It’s essential to replace the spray arm promptly to ensure optimal cleaning performance.

Sourcing Replacement Parts

  • When undertaking DIY appliance repairs, repairing kitchen devices, or conducting dishwasher maintenance, it’s important to source reliable replacement parts from reputable suppliers.
  • Dishwasher part suppliers offer a range of genuine replacement spray arms designed specifically for various dishwasher models.
  • By finding genuine parts that are compatible with your dishwasher, you can effectively resolve any issues and restore your appliance’s functionality.

Replacing a Faulty Spray Arm

  • To replace a faulty spray arm, start by turning off the power supply to the dishwasher to ensure safety during the repair process.
  • Remove any items on or near the lower rack to gain access to the spray arm assembly.
  • Depending on your dishwasher model, you may need to unscrew or release a locking mechanism that secures the spray arm in place.
  • Take note of how these components are assembled for easy reinstallation later.
  • Inspect the old spray arm assembly removed from its position in the dishwasher tub for any signs of blockage or damage.
  • If you find visible debris clogging up holes in the spray arm or signs of cracks or breakages, it’s time for a replacement.
  • Fitting a new spray arm into place should be relatively straightforward by following reverse steps from removal.

2. Pump and Motor Assembly

Pump and Motor Assembly in Dishwashers

  • The pump and motor assembly is a critical component in any dishwasher, responsible for the circulation of water and the overall performance of the appliance.
  • It consists of two main parts: the electric motor and the pump.
  • The motor drives the pump, which pushes water through the spray arms to clean dishes effectively.
  • Continuous use and wear over time can lead to issues that affect your dishwasher’s performance.

Common Problems

  • Common issues include a noisy or malfunctioning motor, reduced water flow, or complete assembly failure.
  • Addressing these problems promptly is essential to maintain smooth dishwasher operation.

3. Heating Element

Importance of Heating Element in Dishwasher

  • The heating element is a crucial component in a dishwasher, responsible for raising the water temperature to optimal levels for effective cleaning.
  • It aids in removing grease, grime, and food particles, ensuring your dishes come out sparkling clean.

Common Heating Element Issues

  • Heating elements can develop issues over time due to wear and tear or electrical malfunctions.
  • Problems include inadequate heat production, uneven temperature distribution, or complete failure to heat water.
  • These issues may result from damaged wiring connections or a burnt-out element.
  • Troubleshooting involves checking for visible damage on the element and testing its continuity with a multimeter.

4. Water Inlet Valve

Water Inlet Valve Functionality

  • The water inlet valve is a crucial component of a dishwasher as it controls the flow of water into the machine.
  • Malfunctions in the valve can lead to issues like the dishwasher not filling with water or not filling properly.

Replacement Considerations

  • When dealing with water inlet valve problems, replacing the valve may be necessary for optimal dishwasher performance.
  • Compatibility with your specific dishwasher model is essential when searching for a replacement valve.
  • Different dishwashers may have different types of valves, so consult the user manual or contact the manufacturer to identify the correct part.
  • DIY appliance repairs can often be cost-effective and straightforward when reliable replacement parts are available.

5. Drain Pump

dishwasher drain pump assembly replacement part

The Role of the Drain Pump

  • The drain pump is a vital component of a dishwasher that ensures proper drainage of water from the machine.
  • It prevents dirty water from re-entering the dishwasher during the wash and rinse cycles.

Identifying Drainage Issues

  • If your dishwasher doesn’t drain or leaves standing water at the bottom of the tub, the drain pump might be faulty and need replacement.
  • Finding genuine replacement parts can be challenging with many suppliers in the market.

Replacing the Drain Pump

  • When replacing the drain pump, disconnect power from the dishwasher by unplugging it or turning off its circuit breaker.
  • Locate the drain pump beneath or behind your dishwasher using the user manual or online resources for specific diagrams and instructions.
  • Carefully detach connections like electrical wires or hose clamps securing the old pump.
  • Install the new drain pump by reconnecting all necessary connections in reverse order.
  • Ensure connections are secure but not overly tightened to avoid damage.

6. Door Latch

Importance of the Door Latch

  • The door latch is a crucial component of any dishwasher, ensuring the door remains securely closed during the wash cycle.
  • Proper functionality of the door latch is essential for the dishwasher to operate efficiently and effectively.

Door Latch Repair

  • Repairing a faulty door latch can often be done as a DIY project.
  • Prior to any repairs, disconnect the power supply to prevent accidents.
  • Remove the control panel or front cover of the dishwasher to access the latch mechanism.
  • Inspect the latch for damage or misalignment.
  • Tightening loose screws may solve some issues.
  • Use a multimeter to check for electrical continuity when the latch is engaged.

Consider Replacement

  • If repairing the door latch isn’t possible, consider replacing it with a reliable replacement part.
  • Ensure you find genuine parts compatible with your specific dishwasher model.

7. Silverware Basket

The Importance of a Silverware Basket

  • The silverware basket is an essential component of any dishwasher, providing a convenient and organized way to clean cutlery, utensils, and small kitchen tools.
  • Designed with compartments and dividers to ensure thorough cleaning without the risk of damage or tangling.

Dealing with a Worn-Out or Broken Basket

  • Over time, frequent use may lead to wear and tear or damage to the silverware basket.
  • Finding a reliable replacement is crucial to maintain optimal dishwasher functionality.
  • DIY appliance repairs have become popular for cost-effective home appliance solutions.

8. Detergent Dispenser

dishwasher soap detergent replacement part

Importance of Detergent Dispenser

  • The detergent dispenser is a crucial component of any dishwasher, ensuring the correct amount of detergent is dispensed at the right time during the wash cycle.
  • It plays a vital role in achieving clean and spotless dishes.

Common Detergent Dispenser Issues

  • Detergent dispensers may encounter problems like failure to open or close properly.
  • This can result from factors such as a faulty latch mechanism or a buildup of residue or debris obstructing its movement.
  • Troubleshooting is essential before considering replacement.

Leakage Issue

  • Leakage from the dishwasher’s door during operation could indicate a faulty seal in the detergent dispenser assembly.
  • This can lead to inefficient detergent use and potential damage to other components.

9. Dish Rack Wheels

Role of Dish Rack Wheels

  • Dish rack wheels are crucial components in dishwashers, facilitating the smooth movement of the dish rack.
  • They enable effortless loading and unloading of dishes by allowing the rack to glide in and out of the dishwasher.

Common Issues with Dish Rack Wheels

  • Over time, dish rack wheels can wear out or become damaged due to constant use or inadequate maintenance.
  • When this happens, it becomes necessary to replace them to restore the dishwasher’s optimal performance.

10. Drain Hose

Dishwasher drain hose replacement part

The Role of a Drain Hose in a Dishwasher

  • The drain hose is an essential component of a dishwasher, responsible for removing water from the appliance during the drain cycle.
  • Over time, the drain hose can become worn out or clogged, leading to drainage issues and potential leaks.

Choosing the Right Replacement Drain Hose

  • Finding a genuine replacement drain hose is crucial for ensuring proper functionality and preventing further damage to your dishwasher.
  • Consider the specific model and brand of your dishwasher when searching for a new drain hose.
  • Different dishwashers may have varying hose lengths and diameters, so finding a compatible replacement is necessary for a secure fit.
  • Dishwasher part suppliers or manufacturers’ websites can provide detailed information about suitable hoses for your particular model.

11. Timer Knob

Function of Timer Knob

  • The Timer Knob is an essential component of a dishwasher, allowing users to select the desired cycle and duration for dishwashing.
  • It’s a frequently used part prone to wear and tear over time, affecting the dishwasher’s functionality.

Common Timer Knob Issues

  • One common issue is the knob becoming loose or falling off due to regular usage or mishandling.
  • If the knob spins freely without changing the selected cycle, it likely needs replacement.
  • To replace it, turn off power to the dishwasher and locate the retaining clip behind the knob.
  • Remove the clip carefully using pliers or a screwdriver, depending on its design.
  • Slide off the old knob once the clip is removed.

Stuck or Difficult to Rotate Knob

  • Timer Knobs can become stuck or hard to rotate due to debris accumulation or worn-out internal components.
  • To address this, disconnect power and remove any screws securing the control panel.
  • Release tabs holding the panel and lift it away to access the Timer Knob assembly.
  • Inspect for damage or obstructions.
  • Cleaning dirt or grime buildup can often resolve sticky rotation issues.
  • If there’s visible damage like cracked gears or broken teeth, replacement is necessary.

12. Float Switch

Functionality of the Float Switch

  • The float switch is a vital component in a dishwasher, regulating the water level inside the appliance.
  • It acts as a safety measure to prevent overfilling of water, which could lead to flooding or damage.
  • Typically located near the bottom of the dishwasher tub, it’s connected to a small floating device.
  • When water fills up the tub, the floating device rises, triggering the float switch to shut off the water supply.

Common Issues with the Float Switch

  • Problems with the dishwasher not filling up with enough water or overfilling may indicate a float switch issue.
  • Debris or mineral buildup from hard water can cause the float switch to become stuck, disrupting its proper functioning.
  • To resolve this issue, clean around the float switch area using warm soapy water and a soft brush.

13. Control Board

Control Board Functionality

  • The control board is an essential component of a dishwasher, responsible for controlling and coordinating various functions of the appliance.
  • It acts as the brain of the dishwasher, ensuring that all the different parts work together seamlessly to provide efficient and effective cleaning results.

Common Control Board Issues

  • Electrical failure is a common problem with control boards and can result from power surges, faulty wiring, or general wear and tear over time.
  • When the control board malfunctions, it can lead to various issues affecting the overall performance of your dishwasher.

Symptoms of Control Board Failure

  • Dishwasher not starting or stopping mid-cycle.
  • Unresponsive buttons on the control panel.
  • Erratic behavior, such as incorrect timing or random error codes.

Addressing Control Board Issues

  • In cases of electrical failure, replacing the control board with a reliable replacement part is crucial to restore proper functioning.
  • Programming errors or software glitches may cause strange behavior or error codes; resetting or reprogramming the control board can be a temporary solution.
  • For persistent or recurring problems, it’s advisable to replace the control board entirely.

14. Fuse

Role of the Dishwasher Fuse

  • The fuse is a critical component of a dishwasher’s electrical system, serving as a safety measure to protect the appliance from power surges.
  • It acts as a barrier between the electrical current and sensitive dishwasher components, preventing damage in case of an electrical overload.
  • In simpler terms, the fuse acts as a safeguard that cuts off power to the dishwasher if it detects an excessive flow of electricity.

Maintenance and Troubleshooting

  • Address any issues with the dishwasher’s fuse promptly when performing maintenance and troubleshooting.
  • If the dishwasher suddenly stops working or exhibits erratic behavior (e.g., not turning on or not completing cycles), a blown fuse could be a potential cause.
  • A blown fuse typically occurs due to electrical surges or overloads in your home’s power supply.
  • Replacing the faulty fuse can often resolve the problem and restore the dishwasher’s functionality.

15. Control Panel

Control Panel Functionality

  • The control panel is an integral part of any dishwasher, serving as the central hub for operating and controlling its functions.
  • It allows users to select different wash cycles, adjust settings, and monitor the progress of the dishwasher.

Common Control Panel Issues

  • One common issue is unresponsive buttons or a complete failure to operate.
  • Causes can include a loose connection or a malfunctioning control board.
  • Troubleshooting tips and potential solutions:
  • Ensure the dishwasher is properly connected to a power source.
  • If connected, but buttons are unresponsive or the display is blank, try a power reset by turning it off for a few minutes and then back on.
  • If the issue persists, consider replacing either the control board or individual buttons.

Erratic Behavior and Incorrect Readings

  • Another problem can be erratic behavior or incorrect readings displayed on the screen, possibly due to a faulty touchpad or sensor within the control panel.
  • Troubleshooting steps:
  • Clean the touchpad with a soft cloth to remove dirt or residue.
  • Consult your dishwasher’s manual for instructions on recalibrating or resetting the touchpad.
  • If cleaning and recalibration don’t work, consider replacing the touchpad or sensor.

16. Thermistor

The Role of the Thermistor

  • The thermistor is a crucial component in dishwasher maintenance and repair.
  • It acts as a temperature sensor, providing data to regulate water temperature during each dishwasher cycle.
  • Temperature-related issues or error codes may indicate the need to replace the thermistor.

Common Thermistor Issues

  • A malfunctioning thermistor can result in inadequate heating or overheating of water during cycles, leading to ineffective cleaning and potential damage to dishes.
  • Faulty thermistors can cause excessively hot water, which may warp or melt plastic items in the dishwasher.
  • If the thermistor fails to detect appropriate temperatures, it may not activate heating elements, causing inefficient cleaning and sanitization.
  • Inaccurate readings from a defective thermistor might trigger error codes on the control panel or prevent the dishwasher from starting.

Diagnosing Thermistor Problems

  • To diagnose thermistor issues, use a multimeter tool designed for testing electrical components.
  • Follow safety precautions and refer to a comprehensive troubleshooting guide for your specific dishwasher model to determine if the thermistor needs replacement.

17. Pressure Switch

dishwasher pressure switch assembly replacement part

Pressure Switch Functionality

  • The pressure switch is a crucial component in a dishwasher that helps regulate the water level during different cycles.
  • It senses the amount of water in the dishwasher tub and communicates with the control board to control the water inlet valve.
  • The pressure switch ensures proper functionality, prevents damage to the appliance, and facilitates effective cleaning.

Operation of the Pressure Switch

  • The pressure switch acts as a responsive sensor, determining when there is sufficient water for cleaning and when it’s time for draining.
  • It prevents overflows or leaks, ensuring thorough cleaning of dishes.

Troubleshooting Pressure Switch Issues

  • If the dishwasher is not filling with water or overfills and causes flooding, there may be a problem with the pressure switch.
  • Start troubleshooting by checking for clogs or blockages in the air chamber or tubing connected to it.
  • Obstructions can affect airflow and accuracy. Cleaning these components with mild soap and warm water can often resolve minor issues.

18. Door Seal

Importance of the Door Seal in Dishwashers

  • The door seal is a crucial component of any dishwasher, ensuring that water and detergent stay inside the appliance during the wash cycle.
  • Over time, the door seal can wear out or become damaged, leading to leaks and inefficient operation.
  • Signs of a deteriorating door seal include water pooling around the dishwasher and excessive noise during operation.

19. Wash Impeller

Wash Impeller Functionality

  • The wash impeller is a crucial component of your dishwasher, located at the bottom.
  • It creates high-pressure water jets that spray water onto dishes to remove food particles and stains, ensuring effective cleaning.

Common Wash Impeller Issues

  • Worn-out blades are a common issue due to continuous use and exposure to detergents, leading to erosion and damage.
  • If your dishwasher doesn’t clean dishes properly or leaves food particles after a cycle, it might indicate the need to replace the wash impeller blades.
  • Reliable replacement parts for your dishwasher can be found from reputable suppliers specializing in kitchen equipment fixes.

Clogging Due to Debris

  • Debris accumulation is another problem with the wash impeller.
  • Small food particles or foreign objects like bones or toothpicks can obstruct the impeller’s movement, preventing it from spinning freely.
  • This obstruction disrupts water flow and hampers effective cleaning.
  • Regular maintenance and proper use of dishwasher essentials such as filters and strainers can help prevent debris buildup around the wash impeller.
  • If persistent clogging occurs, you may need to manually disassemble and clean the wash impeller or consider replacing it.

Troubleshooting Dishwasher Cleaning Performance

  • When troubleshooting issues related to your dishwasher’s cleaning performance, it’s essential to check for problems with the wash impeller.
  • Understanding its function and recognizing signs of wear or clogging can help diagnose problems early and take appropriate action.

20. Water Supply Tube

Water Supply Tube in Dishwasher

  • The water supply tube is an essential component of a dishwasher, responsible for delivering water to the appliance for proper functioning.
  • Over time, the water supply tube may develop leaks or become clogged with mineral deposits, leading to reduced water flow or complete blockage.
  • Replacement becomes necessary to ensure the dishwasher’s continued efficient operation.

Proper Installation Procedures

  • Prior to installation, turn off the power supply and disconnect any connected plumbing.
  • Carefully examine existing connections for damage or wear and replace them if necessary.
  • Follow manufacturer’s instructions precisely when reconnecting everything.
  • Pay attention to any o-rings or gaskets that need replacement during installation to prevent future leaks.

Common Mistakes to Avoid in Dishwasher Parts

Avoiding Common Mistakes in Dishwasher Repairs

  • When repairing appliances, especially dishwashers, it’s essential to avoid common mistakes for a smooth and effective process.

Use Genuine Dishwasher Parts

  • Avoid using non-genuine dishwasher parts.
  • Cheaper alternatives or generic parts may lack quality and durability.
  • Genuine parts are designed for your specific dishwasher model and meet manufacturer’s standards.
  • They offer better compatibility, reliability, and longevity, ensuring optimal dishwasher performance.

Properly Troubleshoot Dishwasher Problems

  • Don’t rush into purchasing replacement parts without accurate troubleshooting.
  • Diagnose the issue accurately before replacing parts.
  • Many dishwasher problems can be resolved through simple fixes or routine maintenance, such as cleaning filters or unclogging drainage hoses.
  • Utilize dishwasher troubleshooting guides or seek advice from reliable online sources.
  • Save time and money by addressing minor issues with DIY fixes before resorting to costly part replacements.

Choose Reputable Dishwasher Part Suppliers

  • Select reliable suppliers when purchasing replacement components.
  • Research different suppliers, read customer reviews and ratings.
  • Look for certifications that guarantee authenticity and reliability of the parts.
  • Opting for reputable suppliers ensures you receive high-quality products that meet industry standards.

Maintain Your Appliances Effectively

  • Avoid unnecessary expenses by avoiding common pitfalls in repairing kitchen devices like dishwashers.
  • Ensure your appliance functions efficiently for years to come.
  • Take the time to troubleshoot issues properly before replacing parts.
  • Choose genuine components from reputable suppliers.


Properly maintaining and repairing your dishwasher is crucial for its optimal functioning and longevity. By understanding the 20 most common dishwasher replacement parts discussed in this article, you now have a comprehensive guide to help troubleshoot and resolve any issues that may arise with your dishwasher.

Whether it’s replacing a faulty spray arm, pump and motor assembly, or heating element, knowing where to find genuine parts from reliable suppliers is essential. Investing in appliance maintenance tips and DIY fixes can save you time and money in the long run.

By being proactive in identifying problems early on and addressing them promptly, you can avoid major breakdowns and expensive repairs. Regularly inspecting dishwasher components such as the water inlet valve, drain pump, control board, and door seal can help prevent potential malfunctions.

Remember to always consult a troubleshooting guide specific to your dishwasher model before attempting any repairs. While some fixes might be within your skill set as a DIY enthusiast, it’s important to know when it’s necessary to seek professional assistance from appliance repair specialists.

Reliable replacement parts are widely available online or through authorized dealers who specialize in kitchen equipment fixes. By following these guidelines for dishwasher maintenance and repair, you can ensure that your appliance operates efficiently for years to come.


What are the signs that my dishwasher requires a replacement part?

Signs include poor cleaning results, unusual noises, water leaks, or failure to start. If the dishwasher displays error codes, consistently leaves residue on dishes, or experiences drainage issues, these may indicate the need for replacement parts.

Can I replace dishwasher parts to enhance overall performance?

Yes, replacing worn-out or malfunctioning dishwasher parts, such as spray arms or door gaskets, can enhance overall performance. Regular maintenance, including cleaning filters and checking for clogs, contributes to improved efficiency and longevity.

Are there DIY tips for preventing common dishwasher part issues?

Prevent common issues by regularly cleaning the dishwasher, using the right detergent, and avoiding overloading. Ensure proper loading techniques, regularly inspect door seals for damage, and clean filters or spray arms. Following these DIY tips can prevent many common dishwasher part issues.

How do I diagnose which part is causing a specific dishwasher problem?

Diagnose dishwasher problems by observing the issue, checking for error codes, and inspecting visible components. Focus on common problems like poor cleaning or drainage issues, and consult the dishwasher’s manual or online resources for troubleshooting guides to pinpoint the faulty part.

Where can I purchase quality replacement parts for my dishwasher?

Purchase quality replacement parts for your dishwasher from reputable sources such as the manufacturer’s website, authorized dealers, or specialized appliance parts retailers. Online platforms like Amazon or dedicated appliance repair websites offer a variety of genuine replacement parts for dishwashers.

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