A blocked drain hose is an incredibly common reason for a Frigidaire dishwasher failing to drain. Several things could be obstructing the hose, such as food debris, bits of broken glass, paper, or plastic. In several cases, the blockage could be something that has fallen into the pump and become stuck, preventing water from flowing through the system.
If your dishwasher is connected to your garbage disposal, ensure that it is not jammed or clogged. If the garbage disposal is clogged, this can prevent the dishwasher from draining correctly. A professional may be needed to look at the garbage disposal.
The air gap prevents wastewater from returning into the clean water supply. If it is blocked by debris, the dishwasher could struggle to drain. To check this, remove the cap and clean out the air gap. This should be an easy and quick fix to try.
The drain pump's primary function is to drain the dishwasher. When it malfunctions, it can cause drainage problems that can prevent the dishwasher from working entirely. Contact a professional and have them look at the dishwasher's motor to see if this is the issue.
Excessive dishwashing detergent can build up inside the dishwasher, leading to a variety of issues, including drainage problems. Using too much detergent can produce an excess of suds, which can prevent the dishwasher from draining completely. Always follow the manufacturer's recommended levels of detergent.
The check valve is located at the bottom of the pump assembly. It prevents water from flowing back into the dishwasher after it has drained. If it is damaged or broken, water cannot flow out, and the dishwasher will not drain effectively. Contact a professional to have the valve replaced.
Not all detergents are suitable for use in a dishwasher. Only use detergents specifically intended for dishwashers. Detergents made for hand washing dishes can create suds that are too thick and prevent the dishwasher from draining entirely. Follow the manufacturer's recommended dishwashing detergent guidelines.
