Dishwasher has water overflow issues. Water overflows from your dishwasher and leaks a puddle of water on the floor. When this happens it needs to be fixed ASAP as flooding can cause heavy damage. The dishwasher needs to be checked for what is causing the water overflow. We will explain the reasons why the dishwasher is overflowing and how to fix it.
Dishwasher Overflows Water – How To Fix?
CHECK FLOAT, DOOR SEAL, EXCESS DETERGENT
Troubleshoot why a dishwasher can overflow. The 5 reasons listed are the most likely problems that can cause a dishwasher to overflow. If you do not find the problem after trying everything on this page, please leave us a comment below and let us know your exact dishwasher issue and we can assist. Please remember to unplug power before troubleshooting.
5 Reasons Why Dishwasher Overflows:
1. Float Assembly Is Stuck Or Faulty
2. Too Much Soap Creates Excessive Suds
3. Dishwasher Door Gasket Fault
4. Water Inlet Valve Malfunction
5. Bottom Of Dishwasher Clogged/Blocked
Float Assembly Is Stuck Or Faulty
When water enters the dishwasher, the float assembly moves upward and tells the dishwasher water valve when to shut the water off. If the float is stuck in the UP position, the dishwasher may overfill. Check the float assembly to find out if the float may be stuck. There is also a switch connected to the float that can fail so check both. The float switch is located on the inside bottom of the dishwasher.
Too Much Soap Creates Excessive Suds
If the overflowing water has excessive soap suds, the issue is with the detergent itself. Using too much detergent can create more soapy suds than the dishwasher can handle. When a large amount of soap is used, the soap suds expand so much that the soap comes through the dishwasher door and overflows onto the floor. Using a dollar store dishwashing detergent can also cause this issue as cheap soap can create excessive suds. Use less soap or switch your dishwasher detergent.
Dishwasher Door Gasket Fault
If water or soap suds escape past the dishwasher door and onto the floor, the sealing gasket on the dishwasher door is most likely worn out and needs to be replaced. When the dishwasher door is closed, the rubber seal going around the entire interior door is what seals the water inside. If this gasket gets ripped, brittle, or worn out, water will overflow onto the floor. You can attempt to clean the gasket and add a small amount of petroleum jelly to see if that stops the leak. If you find the dishwasher door gasket to be in bad condition you should replace it ASAP.
Dishwasher Door Gasket
DAMAGED OR DIRTY SEAL? CLEAN AND RETRY
Water Inlet Valve Malfunction
The dishwasher is supplied with water from the water inlet valve. This valve can malfunction and fill the dishwasher with water when not in use. If you see water in the dishwasher when you are not using it, check the water inlet valve for faults. If this valve is faulty, the dishwasher can fill with water and overflow onto the floor. If any fault is found with the valve, it needs to be replaced. The water inlet valve is usually located under the dishwasher and connected to the water line coming from under the sink.
Dishwasher Water Inlet Valve
FAULTY VALVE CAN CAUSE OVERFLOW
Bottom Of Dishwasher Clogged/Blocked
The bottom of the dishwasher can become filled with food particles. These particles can clog up the area where the water drains out. If the water cannot drain out of the dishwasher, water eventually flows upward and will leak out of the door and overflow. To avoid blockages, always clear the bottom of the dishwasher out after use. Keep the filter clean and always check for any broken glasses or plates from blocking the bottom of the dishwasher. Keeping a clean dishwasher can help it to run as designed.
Other issues that can cause dishwasher water overflow…
Broken wash arm – Pushes water under door and leaks.
Cracked motor shaft seal – Water gets through a bad seal.
Damaged sump seal – Water can leak if gasket is bad.
Common Reasons A Dishwasher Leaks/Overflows
All dishwasher overflow troubleshooting methods above will work on GE, Maytag, Sharp, Bosch, KitchenAid, Whirlpool, Samsung, LG, Haier, Kenmore, Hotpoint, Emerson and Frigidaire dishwashers as all dishwashers have the same basic components.
Do you need help with a dishwasher overflowing or leaking? Contact us below and please describe your issue and leave the dishwasher model number for us to help you to solve the overflowing problem.
Need help finding the dishwasher model number? Find the dishwashers model number
Allen is the author and creator of this website. He has years of experience with appliance repair, commercial food machinery maintenance, electrical, HVAC, plumbing, vehicle maintenance, and critical aviation related systems.