6 Common Causes of Dishwasher Leaks and How to Fix Them

Is your dishwasher leaking? Learn about the 6 most common causes of dishwasher leaks, from worn gaskets to clogged filters, and discover practical solutions to fix them quickly and efficiently.

A technician inspects the inside of a dishwasher during a repair, wearing yellow gloves for safety.

Written by Olivia Carter

Contributing Writer

Updated September 12, 2024

I

s your dishwasher leaking water and creating a mess in your kitchen? There are several reasons why your dishwasher might be leaking, and luckily, many of them are simple to diagnose and fix. At Major at Appliance Repair, we’re here to help you troubleshoot the most common causes of a leaking dishwasher.

1. Worn-Out Door Gasket

The gasket is a rubber seal that lines the door of your dishwasher, keeping water inside during the wash cycle. Over time, this gasket can crack or wear out, allowing water to escape.

Fix: Inspect the door gasket for signs of wear and tear. If it appears brittle or damaged, replace it. This is usually an easy fix that can stop your dishwasher from leaking.

2. Clogged or Faulty Drain Hose

The drain hose carries wastewater from your dishwasher to the plumbing. If the hose is clogged, kinked, or damaged, it can cause water to back up and leak from the dishwasher.

Fix: Check the drain hose for clogs or cracks. Clean out any blockages and replace the hose if it’s damaged. Also, ensure that the hose is not kinked or twisted, which could restrict water flow.

3. Defective Water Inlet Valve

The water inlet valve controls the amount of water entering the dishwasher. If this valve is defective, it may allow too much water into the dishwasher, causing it to overflow and leak.

Fix: Inspect the water inlet valve for leaks or damage. If it’s not working properly, you will need to replace the valve to prevent further water leaks.

4. Improperly Loaded Dishes

Overloading your dishwasher or placing dishes in a way that blocks the spray arms can cause water to splash against the door, leading to leaks.

Fix: Ensure that your dishes are loaded properly and that nothing is blocking the spray arms. Avoid overloading the dishwasher, as this can prevent the door from sealing correctly.

5. Cracked Dishwasher Tub

A cracked tub can lead to water leaking from the bottom of your dishwasher. This is usually caused by wear and tear over time, especially in older models.

Fix: Inspect the bottom of your dishwasher tub for visible cracks. Small cracks can sometimes be repaired with a sealant, but larger cracks may require you to replace the tub or the entire dishwasher.

6. Loose or Damaged Float Switch

The float switch helps regulate the water level inside the dishwasher. If the float switch is stuck, loose, or damaged, it may cause your dishwasher to overfill and leak.

Fix: Check the float switch to ensure it’s moving freely and isn’t obstructed. If it’s stuck or damaged, clean or replace the float switch to restore proper function.

At Major at Appliance Repair, we understand how frustrating a leaking dishwasher can be, especially when you’re not sure what’s causing the issue. If you’re unable to resolve the problem or need professional assistance, contact us today! We’re here to provide fast, reliable, and affordable appliance repair services.

Frequently Asked Questions

  • Why is my dishwasher leaking from the door?

    A worn-out door gasket is often the culprit. Over time, the gasket can crack, allowing water to leak during the wash cycle. Replacing the gasket is usually an easy fix.

  • Can overloading the dishwasher cause it to leak?

    Yes, overloading the dishwasher or placing dishes improperly can cause water to splash against the door, leading to leaks. Make sure the dishwasher is loaded correctly and not too full.

  • What should I do if the dishwasher tub is cracked?

    A cracked tub can cause water leaks. Small cracks may be repairable with sealant, but for larger cracks, it might be necessary to replace the tub or the entire dishwasher.

Still have questions?

Feel free to ask our specialist any questions you may have.

Call (415) 406-2656

Schedule an appointment

The best way to get your appliance repaired in your area.

Or call (415) 406-2656

The Homeowners Guide To Appliance Repair.

From average costs to expert advice, get all the answers you need to get your job done.