Discover the hidden cause for your dishwasher’s drain blockage
What To Know
- Signs of a faulty drain pump include a humming or grinding noise during the drain cycle, or water remaining in the dishwasher after the cycle is complete.
- The impeller is a rotating blade located in the drain pump that helps to move water out of the dishwasher.
- If the check valve is faulty, it may not be able to close properly, allowing water to leak back into the dishwasher and preventing it from draining effectively.
A non-draining dishwasher can be a major inconvenience, leaving you with a sink full of dirty dishes and a foul odor. Understanding the reasons behind this issue is crucial for finding an effective solution. In this comprehensive guide, we will delve into the underlying causes of why your dishwasher does not drain, empowering you to troubleshoot and resolve the problem efficiently.
Clogged Drain Hose
One of the most common reasons for a dishwasher not draining is a clogged drain hose. Food particles, grease, and other debris can accumulate over time, creating a blockage that prevents water from flowing out. To check for a clogged drain hose, disconnect it from the dishwasher and inspect it for any obstructions. If you find any, use a drain snake or a pair of pliers to remove them.
Faulty Drain Pump
The drain pump is responsible for pumping water out of the dishwasher. If the pump is faulty, it may not be able to generate enough pressure to drain the water effectively. Signs of a faulty drain pump include a humming or grinding noise during the drain cycle, or water remaining in the dishwasher after the cycle is complete. To test the drain pump, disconnect it from the dishwasher and apply power directly to it. If the pump does not operate, it needs to be replaced.
Obstructed Air Gap
An air gap is a small device installed on the countertop that prevents water from flowing back into the dishwasher. If the air gap becomes clogged, it can create a vacuum that prevents the dishwasher from draining properly. To check for a clogged air gap, remove the cover and inspect it for any debris. If you find any, clean the air gap thoroughly.
Kinked Drain Hose
A kinked drain hose can restrict water flow and prevent the dishwasher from draining effectively. Inspect the drain hose for any bends or kinks along its length. If you find any, straighten out the hose to remove the obstruction.
Broken or Damaged Impeller
The impeller is a rotating blade located in the drain pump that helps to move water out of the dishwasher. If the impeller is broken or damaged, it can affect the pump’s ability to drain the water. To check the impeller, remove the drain pump and inspect the impeller for any cracks or damage. If the impeller is damaged, it needs to be replaced.
Faulty Check Valve
The check valve is a one-way valve that prevents water from flowing back into the dishwasher. If the check valve is faulty, it may not be able to close properly, allowing water to leak back into the dishwasher and preventing it from draining effectively. To check the check valve, remove it from the dishwasher and blow air through it. If air can flow in both directions, the check valve needs to be replaced.
Resetting the Dishwasher
In some cases, a dishwasher may not drain due to a temporary glitch. Resetting the dishwasher can sometimes resolve the issue. To reset the dishwasher, unplug it from the power outlet for a few minutes and then plug it back in. Once the dishwasher is reset, run a test cycle to see if the draining issue has been resolved.
Wrap-Up: Unblocking the Path to Clean Dishes
Understanding the reasons why your dishwasher does not drain is essential for finding an effective solution. By following the troubleshooting steps outlined in this guide, you can identify the underlying cause and take the necessary steps to resolve the issue. Remember, a properly functioning dishwasher is crucial for maintaining a clean and hygienic kitchen.
Information You Need to Know
1. My dishwasher is making a humming noise but not draining. What could be the problem?
A humming noise during the drain cycle could indicate a faulty drain pump. Check the pump for any obstructions or damage and replace it if necessary.
2. How often should I clean the air gap on my dishwasher?
It is recommended to clean the air gap every few months to prevent clogging. Remove the cover and inspect it for any debris. Clean the air gap thoroughly and replace the cover.
3. Can I use a drain cleaner to unclog the drain hose of my dishwasher?
It is not recommended to use a drain cleaner to unclog the drain hose of your dishwasher. Drain cleaners can damage the dishwasher’s components and void the warranty. Instead, use a drain snake or a pair of pliers to remove any obstructions.
4. What are the signs of a faulty check valve in my dishwasher?
Signs of a faulty check valve include water leaking back into the dishwasher after the drain cycle is complete, or the dishwasher not draining properly. To check the check valve, remove it from the dishwasher and blow air through it. If air can flow in both directions, the check valve needs to be replaced.
5. How can I reset my dishwasher?
To reset your dishwasher, unplug it from the power outlet for a few minutes and then plug it back in. Once the dishwasher is reset, run a test cycle to see if the draining issue has been resolved.