Flamingo ApplianceMay 5, 2026 · Dishwasher Repair
Finding standing water at the bottom of your dishwasher after a cycle is a common frustration for many homeowners. While it might look like a major breakdown, the cause is often a simple blockage that you can resolve with a few tools. This guide covers the most effective troubleshooting steps and professional solutions to get your KitchenAid dishwasher back to peak performance.
Check the Most Common Culprits First
Before moving the appliance or taking it apart, check the external components of your kitchen plumbing. These areas are responsible for a significant percentage of drainage complaints.
1. Clear the Garbage Disposal
Your dishwasher usually drains into the same line as your garbage disposal. If the disposal is full of food scraps, the water has nowhere to go. Run your disposal with plenty of cold water to ensure the drain path is clear. If you recently installed a new disposal, ensure the knock-out plug was removed from the dishwasher connection. This is a small plastic disc inside the disposal inlet that must be hammered out for water to flow.
2. Clean the Sump Filters
KitchenAid dishwashers utilize a filtration system to catch food particles. Over time, these filters can become clogged with grease or debris. Most models have a circular filter assembly at the bottom of the tub. Rotate the filter to unlock it, then rinse it under hot water with a soft brush. Make sure the area beneath the filter is free of large debris like broken glass or plastic ties.
3. Inspect the Drain Hose and Air Gap
Look under your sink for the corrugated drain hose. Ensure there are no sharp kinks or heavy items leaning against it that might restrict flow. If your sink has an air gap (the chrome cylinder sitting next to your faucet), pop off the cap and check for debris inside the plastic tube. If the hose does not have a “high loop” or an air gap, dirty sink water may be siphoning back into your dishwasher.
Technical Repairs for Persistent Drainage Issues
If the basic checks do not solve the problem, the issue likely involves a mechanical component. Our factory trained technicians at Flamingo Appliance Service Georgia and Flamingo Appliance Service Florida specialize in these advanced repairs.
The Drain Pump
The drain pump uses an impeller to force water through the hose. If the pump motor fails or the impeller breaks, the dishwasher will not be able to expel water. A technician can test the pump for electrical continuity or check for internal obstructions that might be jamming the motor.
The Drain Valve and Solenoid
In some older KitchenAid models, a drain valve opens to allow water to exit. If the solenoid that operates this valve fails, the valve stays closed. This often requires a professional diagnosis to determine if the part needs a full replacement.
The Electronic Control Board
The control board is the brain of the appliance. It sends power to the drain pump at specific times during the cycle. If the board has a failed relay, it may never tell the pump to turn on. Because these boards are sensitive and expensive, it is best to have a certified professional confirm the failure before ordering parts.
When to Call a Professional
It is normal for a very small amount of water (about a cup) to remain in the sump area to keep the seals from drying out. However, if water is covering the bottom of the tub or leaking onto your floor, it is time for a professional inspection.
At Flamingo Appliance, our technicians undergo over 100 hours of annual training to stay current with the latest KitchenAid specifications. We ensure your appliance is restored to factory standards using high quality parts.
If you have tried the DIY steps and your dishwasher is still not draining, we are here to help. You can schedule a service call with our experts in Snellville, Roswell, or any of our Florida and Georgia service areas. We provide fast and reliable service to get your kitchen running smoothly again.
