If your dishwasher is leaking, you’ll want to address the problem quickly. If left unchecked, a leak could result in costly damage to your flooring or subflooring. Let’s walk through some of the most common causes of dishwasher leaks, so you can get to the root of the issue.
COMMON CAUSES OF A LEAKY DISHWASHER
1. EXCESS DETERGENT
If your dishwasher is overflowing with suds after a cycle, the culprit may be an excessive amount of detergent—or the wrong type of detergent altogether. Dish soap should never be used in the dishwasher. Only use automatic dishwasher detergent and follow the instructions on the label.
2. DAMAGED DOOR GASKET
Your dishwasher’s door gasket lines the inside perimeter of your dishwasher door, creating a watertight seal. A leak coming from underneath or around the dishwasher door may be due to a damaged or worn-out gasket that’s not sealing properly. Inspect the gasket: if you notice any tears, cuts, or wear, it likely needs to be replaced.
3. LOOSE VENT CAP
If your dishwasher has an external vent, you’ve probably noticed warm, moist air coming through the vent near the end of a dishwashing cycle. This is a normal part of the drying process. If the vent cap has come loose, however, water can leak from the dishwasher door. Tighten the vent cap by hand to stop the leak.
4. CLOGGED AIR GAP
If water is leaking from the air gap, it may be clogged with debris. To inspect and clean the air gap, turn the dishwasher off. Remove the chrome cover from the air gap and unscrew or unsnap the plastic cap below. Clean out any debris and replace the cap and cover.
5. LOOSE HOSE CLAMP
If water is leaking under the cabinet next to the dishwasher, a hose clamp may have come loose. Inspect all hoses under the cabinet and tighten the clamps using a flat-head screwdriver.