[Top 5] Common Causes of Leaking Dishwasher

common causes of dishwasher leaks

You may not realize how handy a dishwasher is until something goes wrong and you find a leaking dishwasher emerging from the dependable appliance. As in other items, dishwashers need repair and upkeep in order to continue operating smoothly and producing sparkling dishes.

Pooling water in the bottom of the dishwasher is not only unsightly but also potentially harmful. Fortunately, with a little knowledge and effort, the majority of dishwasher repairs can be performed at home. To assist you in mastering the mess, we’ll discuss five common sources of dishwasher leakage and water in the bottom of the dishwasher.

Consult the owner’s manual or do an online search for additional tips and tools for your model number. Also, numerous big dishwasher manufacturers, including Bosch, GE, Frigidaire, and Kitchenaid, have excellent consumer-friendly websites that are brimming with useful detail. You will locate a nearby store for parts or speak with a member of our friendly plumbing team for personalized assistance.

Top 5 Common Causes of Leaking Dishwasher

Wrong Detergent

Regular dish soap is a no-no—it foams excessively and can result in leaks. Using just dishwasher detergents. Even if you thoroughly rinse the dishes with soap before loading them into the dishwasher, the solution on the dishes will bubble up and exert pressure on the door seal, finally causing it to leak. To prevent this problem, avoid using dish soap when rinsing dishes.

Door Seal Leaking

If water is dripping onto the kitchen floor, it may be the result of a leaking door seal. Open the dishwasher door and check the seal for damage or wear. Verify that it is clean and that the door shuts securely. Upper seals are simple to replace. If, on the other hand, the problem is with the lower door seal, you would need to cut the door, which can be handled by a qualified plumber.

Clogged Dishwasher Filter

The dishwasher filter should be checked and cleared very often. If the filter is not washed on a regular basis, a buildup of food or foreign objects can occur. Preventing the dishes from being cleaned properly and possibly resulting in a leak. Also, if you note a noticeable decrease in cleaning efficiency, this is a positive indicator that the dishwasher filter needs cleaning.

Defective Pump

A dishwasher leak may be caused by a defective pump. This may also be a result of a faulty pump cap. The machine circulates and drains the dishwasher’s water. Also, it is tucked up at the bottom of the dishwasher. It is divided into two parts, one for circulation and one for drainage. If, after an inspection, you find noticeable signs of damage to your drain pump or if it is constantly failing, it should be replaced.

Over Filling Dishwasher

Your device could be absorbing more water than necessary and unable to drain properly. Also, this will cause water to drain from the dishwasher and onto the surface. You may be having issues with the drain itself or the float valve is not correctly closing. Now is a safe time to check the owner’s manual and/or the manufacturer’s website, depending on the kind of dishwasher you have.


If you have a leaking dishwasher and need technical assistance, Plumbing Services Sydney is here to assist you! Although certain things can be checked on your own, such as washing the dishwasher filter, others can be handled by professionals to ensure the source of the issue is resolved.

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