Regular upkeep can prevent common dishwasher issues, extend the life of your appliance, and save you money on repairs.
In this guide, we’ll explore essential dishwasher maintenance tips and techniques. In the video above, This Old House plumbing and heating expert, Richard Trethewey, demonstrates how to access and clean critical dishwasher components, highlighting the importance of proper maintenance.
Understanding Your Dishwasher’s Components
Before diving into maintenance tasks, it’s helpful to familiarize yourself with the key parts of your dishwasher. This knowledge will make troubleshooting and maintenance easier.
External Components
The external parts of your dishwasher include the door, handle, control panel, and kick plate.
Internal Components
Inside your dishwasher, you’ll find the tub, filter, spray arms, heating element, detergent and rinse aid dispensers, upper and lower racks, and utensil basket.
Regular Dishwasher Maintenance Tasks
Performing regular maintenance on your dishwasher can prevent many common problems. Here are some tasks you should incorporate into your routine.
Cleaning the Filter
The filter traps food particles and prevents them from recirculating onto your clean dishes. To clean it:
- Remove the bottom rack
- Locate the filter (usually in the bottom of the tub)
- Twist and lift to remove it
- Rinse under running water
- Scrub gently with a soft brush if needed
- Replace the filter
Regular cleaning of the filter helps maintain your dishwasher’s efficiency and prevents unpleasant odors.
Inspecting and Cleaning Spray Arms
Spray arms distribute water throughout the dishwasher. To keep them functioning properly, perform the following steps:
- Remove the upper and lower spray arms
- Check for clogs in the spray holes
- Use a toothpick or wire to clear any blockages
- Rinse the arms thoroughly
- Reattach the spray arms securely
Checking and Cleaning the Door Seal
The door seal (or gasket) prevents water from leaking during operation. To maintain it, we recommend regularly inspecting the seal for cracks, tears, or buildup and replacing it if damaged. Perform a light periodic cleaning with a damp cloth or sponge and mild detergent, and allow it to dry completely to prevent mildew from forming.
Deep Cleaning Your Dishwasher
Periodically, your dishwasher needs a more thorough cleaning to remove set-in debris buildup. In the video, Trethewey shows us how to access and clean a dishwasher’s deeper components.
Cleaning the Tub
To clean the dishwasher tub, first remove all racks and accessories and wipe down the interior with a damp cloth.
If you’re dealing with stubborn stains, we recommend applying a mixture of baking soda and water. Afterward, run an empty cycle with a cup of white vinegar in the top rack—this process helps remove soap scum, hard water deposits, and odors.
Accessing and Cleaning the Pump and Filter Area
As shown in the video, accessing the pump and filter area requires some disassembly:
- Remove the lower spray arm
- Unscrew and remove the filter assembly
- Clean out any debris from the pump area
- Inspect the impeller for damage or obstructions
- Reassemble carefully, ensuring all parts are secure
This deep clean helps prevent clogs and can sometimes fix dishwashers drainage issues.
Maintaining External Components of Your Dishwasher
While internal maintenance is crucial, don’t neglect the exterior of your dishwasher.
Control Panel Care
Keep the control panel clean and functional by wiping it down regularly with a damp cloth and avoiding harsh chemicals that could damage the buttons or display. Additionally, check for any signs of wear or malfunction.
Door and Handle Maintenance
Maintain the door and handle by cleaning it with a mild detergent solution whenever you wipe down your counters, periodically checking the hinges for proper alignment, and lubricating squeaking hinges promptly.
Preventive Measures To Extend Your Dishwasher’s Lifespan
Taking preventive steps can significantly reduce the need for repairs and extend your dishwasher’s lifespan.
Proper Loading Techniques
Correct loading your dishwasher helps prevent damage to it and your dishware and makes future cleaning easier. Avoid overloading it with dishes, and readjust any items that are blocking the dishwasher’s spray arms. For safety reasons, load utensils with the handles sticking up. Last, place larger items, such as pots and pans, along the sides and back of the dishwasher.
Using the Right Detergent
It is important that your are choosing a dishwasher-compatible detergent and adjusting the amount you use according to the load size and water hardness. Consider adding a rinse aid to prevent water spots from forming on your dishes.
Running Regular Cycles
Even if you don’t use your dishwasher daily, running it regularly can keep the seals from turning brittle and cracking, prevent mildew and odors from developing, and maintain the motor.
Troubleshooting Common Dishwasher Issues
Despite regular maintenance, you may encounter some common dishwasher problems. Here’s how to address them:
Poor Cleaning Performance
If dishes aren’t coming out clean:
- Check and clean the filters
- Inspect spray arms for clogs
- Ensure you’re using the correct amount of detergent
- Check your home’s water temperature
Unusual Noises
Strange sounds during operation could indicate that your dishes are loaded improperly, objects are caught in the pump or spray arms, or that it’s time to replace the pump or motor bearings.
Leaks
For leaks, check your plumbing connections for looseness or wear, ensure that the door seal is in good condition, and test the float switch.
When To Call a Professional for Dishwasher Maintenance
While many dishwasher maintenance tasks are DIY-friendly, some issues require professional attention. Consider calling a technician if:
- The dishwasher won’t start or finish cycles
- There are persistent leaks you can’t resolve
- You experience electrical problems
- You notice burning smells or see smoke
Our Conclusion
Regular dishwasher maintenance improves your appliance’s longevity and performance. By following these tips and addressing issues promptly, you can keep your dishwasher running smoothly and save money on costly repairs. Remember, a well-maintained dishwasher cleans better and uses less energy and water, benefiting your wallet and the environment.