HLMOptimo 10 Feet Universal Washing Machine Drain Hose Flexible Dishwasher Drain Hose Extension Kits Corrugated Washer Hose w/ 1
- The Perfect Combination: The end of the washing machine drain hose fits perfectly with the washing machine.
- Easy to Install: just insert the forming outlet into the end of the hose without any tools. If you are.
- One Size for all: 10 feet washer drain hose for automatic front loading washers with outlet diameters with.
- Premium Material: This durable, ultra-flexible drain hose is made of premium EVA, high pressure resistant.
Eastman 8 Foot Dishwasher Drain Hose, Universal Fit with 5/8 Inch, 7/8 Inch, or 1 Inch OD Drain Outlet, 90 Degree Rubber Elbow,
- Dishwasher drain hose coupling is used to connect the dishwasher to an air gap, or can also connect the.
- The kitchen dishwasher drainage hose features a corrugated hose design with a rubber elbow end, and.
- Flexible dishwasher drain hose coupler is composed of strong and sturdy gray PVC for long-lasting.
- The dishwasher drain hose extension measures 8 feet in length, and is equipped with a universal end that.
Standing water in your Whirlpool WDT730 dishwasher after a full cycle is a clear sign of a drainage issue. This problem can be frustrating, but many common causes are simple to diagnose and fix yourself.
Before beginning any troubleshooting, always disconnect power to your dishwasher. Unplug it from the wall outlet or flip the corresponding circuit breaker off. This prevents electrical shock and accidental activation during repairs.
1. Clean the Dishwasher Filter
A clogged filter is the most frequent reason a Whirlpool WDT730 dishwasher fails to drain properly. Food particles, grease, and debris accumulate in the filter over time, blocking water flow to the drain pump. Cleaning this component is a simple maintenance task that often resolves the issue.
How to Access and Clean the Filter:
- Remove the bottom dish rack from the dishwasher tub.
- Locate the filter assembly at the bottom center of the tub. It usually consists of a cylindrical filter and a flat filter plate.
- Twist the cylindrical filter counter-clockwise and lift it out.
- Gently remove the flat filter plate underneath by pulling it upwards.
- Rinse both filter components under warm running water to remove any visible food particles.
- Use a soft brush (like an old toothbrush) and mild dish soap to scrub away any stubborn debris or greasy residue.
- Inspect the filter housing inside the dishwasher for any remaining debris and wipe it clean.
- Reinstall the flat filter plate, making sure it sits flush.
- Insert the cylindrical filter, twisting it clockwise until it locks securely into place.
Regular filter cleaning can prevent future draining problems. For more details on this essential task, read our guide on how often you should clean your dishwasher filter.
2. Inspect the Drain Hose and Air Gap
The drain hose carries wastewater from the dishwasher to your home's plumbing system, usually connecting to a garbage disposal or a dedicated drain line. Blockages or kinks in this hose can stop water from exiting the dishwasher.
Checking for Kinks and Clogs:
- Pull the dishwasher out from under the counter slightly, if possible, to access the rear.
- Visually inspect the entire length of the drain hose for any bends, twists, or kinks. Straighten any you find.
- Disconnect the drain hose from the garbage disposal or sink drain connection. Have a bucket ready to catch any residual water.
- Inspect both ends of the hose for blockages. Use a flashlight to look inside.
- If you suspect a clog within the hose, try blowing air through it. If air does not pass freely, a blockage exists. You might need a drain snake or a long wire to dislodge debris.
- If the hose is damaged, cracked, or severely clogged, consider replacing it. The Eastman 8 Foot Dishwasher Drain Hose is a TOP PICK for its universal fit and durable corrugated PVC design, including a 90-degree rubber elbow for easy installation. Another reliable option for replacement is the HLMOptimo 10 Feet Universal Washing Machine Drain Hose, offering flexibility and easy installation without tools.
Checking the Air Gap (if applicable):
Some dishwashers connect to an air gap, a small cylindrical fixture found on the sink countertop. This prevents dirty sink water from backflowing into the dishwasher.
- Remove the chrome cap and plastic cover from the air gap.
- Inspect for any food particles or debris that might be causing a blockage.
- Clear any obstructions using a small tool or brush.
- Pour a small amount of water into the air gap opening. It should drain freely into the sink. If it does not, the air gap or the hose leading from it to the drain is clogged.
For more general information on this topic, refer to our article Dishwasher not draining water? Here are the 7 fastest fixes.
3. Clear the Garbage Disposal
If your Whirlpool WDT730 dishwasher drains into a garbage disposal, the disposal itself can be a source of drainage problems. Food waste can back up into the dishwasher's drain line.
Steps to Check Your Garbage Disposal:
- Make sure the garbage disposal is completely clear of food debris. Run it for about 30 seconds with cold water.
- If you recently installed a new garbage disposal, you must remove the knock-out plug from the dishwasher inlet connection. Failure to do so will prevent the dishwasher from draining. Disconnect the dishwasher drain hose from the disposal, then use a screwdriver and hammer to gently tap out the plug from inside the disposal's inlet port.
- Reconnect the drain hose securely.
4. Test the Drain Pump
If the filter, drain hose, and garbage disposal are clear, the issue may be with the dishwasher's drain pump. The drain pump is an electric motor that forces water out of the dishwasher. If it fails, water will remain in the tub.
Signs of a Faulty Drain Pump:
- The dishwasher completes its cycle, but you hear no humming sound of the pump working during the drain cycle.
- You hear a humming or buzzing sound, but no water moves. This could indicate a seized impeller or a blockage within the pump.
- The pump appears to run, but only a small amount of water drains, or it drains very slowly.
How to Access and Inspect the Drain Pump:
Accessing the drain pump usually requires pulling the dishwasher out and tilting it or laying it on its back. Consult your Whirlpool WDT730 owner's manual for exact instructions.
- Disconnect power to the dishwasher.
- Carefully pull the dishwasher out from its cabinet.
- Locate the drain pump, typically at the bottom front or side of the unit.
- Disconnect the electrical connector and the drain hoses attached to the pump.
- Remove the pump assembly. Some models use screws, others a twist-lock mechanism.
- Inspect the pump's impeller for any foreign objects like broken glass, plastic, or food debris that might be jamming it.
- If the impeller spins freely and there are no visible obstructions, you can test the motor's continuity with a multimeter. For guidance on using this tool, see our Electrical Test Kit Review. A reading of infinity or zero ohms may indicate an open or shorted motor, meaning the pump is faulty.
Replacing a drain pump can cost $50-$150 for the part itself. If you hire a professional for this repair, expect labor costs to range from $150 to $300, in addition to the service call fee.
5. Examine the Check Valve
A check valve, sometimes called a one-way valve, prevents drained water from flowing back into the dishwasher tub. It is usually located near the drain pump or within the drain hose connection. If this valve becomes stuck closed or is blocked by debris, water cannot exit the dishwasher.
Inspecting the Check Valve:
- With the drain pump exposed (as described in the previous section), locate the check valve. It may be a small plastic flapper or ball inside a housing.
- Remove the valve and inspect it for any food particles, hardened detergent residue, or damage that prevents it from opening.
- Clean any debris and ensure the flapper or ball moves freely.
- If the valve is damaged or does not operate correctly, replace it. A new check valve is typically inexpensive, costing $10-$30.
6. Reset the Dishwasher or Check the Control Board
While less common for draining issues, an electronic control board malfunction can sometimes prevent the drain cycle from initiating or completing. The control board sends power to the drain pump.
Performing a Reset:
A simple reset can sometimes clear minor electronic glitches. You can try a soft reset or a hard reset.
- Soft Reset: Press and hold the START/RESET button on the control panel for three seconds. Close the door and wait for the cycle to reset.
- Hard Reset: Disconnect power to the dishwasher for five to ten minutes by unplugging it or turning off the circuit breaker. Then restore power.
For more detailed instructions, refer to our guide on how to reset a Whirlpool dishwasher.
Control Board Replacement:
If a reset does not resolve the problem and you have ruled out all other causes, the control board might be at fault. This is a more complex and expensive repair. A new control board can cost $100-$300. Professional labor for control board replacement typically adds another $200-$400, plus the service call fee. It is generally advisable to have a qualified technician diagnose control board issues.
When to Call a Professional
Many Whirlpool WDT730 draining problems are solvable with basic tools and some patience. However, there are times when calling a professional appliance technician is the best course of action. If you have followed these troubleshooting steps and the dishwasher still refuses to drain, or if you are uncomfortable with electrical testing or disassembling the appliance, a professional can accurately diagnose the problem. They have specialized tools and expertise to handle more complex repairs, such as deep internal clogs or control board failures. Expect to pay the service call fee, plus parts and labor, which can total $200-$500 or more depending on the repair.
Preventative Maintenance Tips
Regular maintenance can significantly extend the life of your Whirlpool WDT730 dishwasher and prevent common issues like poor draining. Scrape plates thoroughly before loading them to minimize food particles entering the drain system. Clean the dishwasher filter regularly, ideally once a month. Occasionally run a hot cycle with a dishwasher cleaner to remove grease and detergent buildup. For a comprehensive list of tasks, consult our Home Appliance Maintenance Checklist.
HLMOptimo 10 Feet Universal Washing Machine Drain Hose Flexible Dishwasher Drain Hose Extension Kits Corrugated Washer Hose w/ 1
- The Perfect Combination: The end of the washing machine drain hose fits perfectly with the washing machine.
- Easy to Install: just insert the forming outlet into the end of the hose without any tools. If you are.
- One Size for all: 10 feet washer drain hose for automatic front loading washers with outlet diameters with.
- Premium Material: This durable, ultra-flexible drain hose is made of premium EVA, high pressure resistant.
Eastman 8 Foot Dishwasher Drain Hose, Universal Fit with 5/8 Inch, 7/8 Inch, or 1 Inch OD Drain Outlet, 90 Degree Rubber Elbow,
- Dishwasher drain hose coupling is used to connect the dishwasher to an air gap, or can also connect the.
- The kitchen dishwasher drainage hose features a corrugated hose design with a rubber elbow end, and.
- Flexible dishwasher drain hose coupler is composed of strong and sturdy gray PVC for long-lasting.
- The dishwasher drain hose extension measures 8 feet in length, and is equipped with a universal end that.
