How to Fix a Dishwasher That Hums but Doesn’t Fill with Water

By SmartHomeBit Staff •  Updated: 06/09/23 •  14 min read



Experiencing dishwasher hum without water flow can be really annoying. It’s important to find out the cause and fix it.

One of the causes could be a faulty dishwasher water inlet valve.

Start by locating the valve – usually at the front, under the dishwasher. Turn off the electrical and water supply to the appliance.

Then, remove the water supply line connected to the valve to check for blockages or debris. Test the valve with a multimeter for continuity. If it’s faulty, replace it with a technician.

Float switch, timer, or control board may also cause the issue. So, inspect all parts carefully. Troubleshoot the problem systematically and solve the root cause.

Follow the guidelines and necessary precautions to extend the dishwasher’s life and ensure smooth functioning.

Possible causes of the problem:

If you’re dealing with a humming dishwasher but it’s not filling up with water, the problem could be caused by a number of issues. Let’s take a look at some possible culprits, including:

By identifying the cause of the problem, you can take the necessary steps to get your trusty dishwasher back up and running.

Damaged door switch

Humming but not filling with water? A damaged door switch might be the cause. This switch tells the dishwasher when to start or stop, based on open/closed door. If the switch’s actuator is broken, the machine doesn’t get the ‘door-closed’ signal to power up and fill.

Check the door switch by opening the control panel. Test its continuity for any issues. Replace it if need be.

To avoid this issue, make sure all parts of the dishwasher are working properly. Regular maintenance and cleaning will help prevent damage and repairs. Clean other parts too, like inlet valves, floats, and supply lines. Show your dishwasher some love – it’ll last longer!

Faulty water inlet valve

Is your dishwasher humming but not filling with water? This could be caused by a faulty water inlet valve. This essential component regulates the water entering the machine. But, when it fails to open, water flow is prevented and washing cycles may be interrupted.

Ignoring this problem can lead to bigger issues. It is important to get professional help immediately. A qualified technician can diagnose the issue and replace any faulty parts.

Regular maintenance and inspection by experts can prevent these kinds of problems from occurring in the future. So, make sure your dishwasher’s inlet valves are in good condition to ensure it functions properly.

Defective float

Using a dishwasher? The float mechanism is important to know about. It’s a plastic piece that’s attached to an arm. If water exceeds a certain point, it triggers a switch.

But if the float breaks or doesn’t work, the dishwasher hums but no water comes out. This can cause harm and even leaks in the kitchen.

If you hear your dishwasher humming but not giving out water, it’s likely the faulty float. Quickly call repair professionals or replace the fill valve – to stop more damage.

Be alert for weird signs when using your dishwasher – to make it last longer and avoid expensive repairs.

So, don’t forget: Unclog that water supply line!

Blocked water supply line

Experiencing blocked water supply line issues with your dishwasher? No need to panic! There are simple steps to address the problem.

  1. Turn off the power and water supply for safety.
  2. Then, locate the water supply line and check for blockages or kinks. If there are blockages, disconnect the hose from both ends and run hot water through it to clean it.
  3. If there are no blockages and the hose looks fine, check if the inlet valve is functioning correctly. Replacing it with a new one should sort the problem.
  4. If these steps don’t work, an expert might be needed.

To avoid this issue in the future, regular maintenance is key. Keep your dishwasher clean and free of food debris before loading dishes. Run your dishwasher at least once a week to maintain its performance. Follow these helpful steps and your dishwasher will be in tip-top shape!

Prevention measures to avoid this problem:

A dishwasher humming sound can be frustrating and concerning when no water is running. To avoid this problem, we will explore two important prevention measures in detail in this section. We’ll start with regular maintenance and cleaning, followed by the significance of running the dishwasher at least once a week.

Regular maintenance and cleaning

Maintaining and cleaning your dishwasher is key for its long-term safety and performance. Here’s a 6-step guide to help you keep it running smoothly:

  1. Disconnect the power supply before doing any work.
  2. Take out visible food particles, including filters and overflow areas.
  3. On the top rack, place a container of white vinegar or citric acid, then run a hot cycle.
  4. Clean door liners with soapy water and a soft brush, then rinse them with clean water.
  5. Extract the spray arms. Check and clear blockages using a toothpick, and then put them back.
  6. Reattach the power supply when done.

Even with regular maintenance, wear and damage can happen over time. Not taking proper care of your dishwasher can be risky and reduce its lifespan. Make sure to use it at least once a week and show it some love.

Operating dishwasher at least once a week

Dishwashers are great for cleaning dishes. But some households use them only on special occasions. To avoid problems, it’s wise to run your dishwasher once a week. This can help loosen debris in pipes and valves. Preventing clogs and leaks, it can also extend the machine’s life. Clean the interior, like the utensil basket and filter, to stop mold and mildew.

Hot water works best with detergent. And it’s important to rinse off heavily soiled dishes. Don’t overload the machine either. Following these easy steps can save time and money on repairs and replacements. So, run your dishwasher weekly – it’ll keep your kitchen running smoothly.

Solutions to remedy the situation:

If your dishwasher is humming but not filling with water, don’t panic! There are several solutions to remedy the situation, and we’re here to help. In this section, we’ll walk you through three sub-sections that offer different ways to solve the problem. Learn how to:

  1. Dissolve citric acid in hot water
  2. Inspect and clean your water supply line and inlet valve
  3. Contact GE Appliances Factory Service for professional assistance.

Dissolving citric acid in hot water

Are you having issues with mineral deposits in your dishwasher water lines? Citric acid may be the answer! This natural acid is found in lemon, lime, and grapefruit. It’s great at dissolving minerals, making it a great cleaning agent for dishwashers.

To use it, dissolve four tablespoons of citric acid in hot water before adding it to the dishwasher. First, make sure the dishwasher is empty. Then, mix the acid into boiling water, stirring to dissolve it fully. Pour it into the dishwasher, then run a full cycle on high heat.

Be careful not to use too much citric acid. It can corrode the components of your dishwasher. But, it’s affordable compared to other cleaning agents. Buy it from supermarkets or online stores.

Using citric acid to clean your dishwasher regularly will save you from expensive repairs and maintenance visits. Plus, it leaves your dishwasher smelling fresh and new. So, dissolve citric acid in hot water to keep your dishwasher running smoothly.

Inspecting, cleaning, and replacing water supply line and inlet valve

For ideal performance from your dishwasher, inspect, clean, and replace the water supply line and inlet valve regularly. Follow these five easy steps to make it happen:

  1. Cut off power: Unplug or disconnect the dishwasher before doing anything.
  2. Find the Water Supply Line: It’s usually near the dishwasher drain hose under the sink.
  3. Detach Parts: Disconnect both ends of the water supply line from the wall and the dishwasher.
  4. Clean or Change Inlet Valve: Clean any sediment on or around the inlet valve to prevent blocking. If it’s broken, switch it with a new one.
  5. Reconnect Everything: Replace any broken parts like the inlet valve or water-supply-line that are cleaned or replaced.

Run a test cycle after you’ve finished these steps to make sure there’s enough water entering your dishwasher. Performing basic tasks like inspecting, cleaning, and replacing damaged elements like water supply lines and inlet valves often can keep your dishwasher running smoothly. Let the experts at GE Appliances Factory Service deal with the task with ease. Your dishwasher will be grateful.

Contacting GE Appliances Factory Service

If your dishwasher hums but no water, it’s best to call GE Appliances Factory Service. Their team of trained professionals can troubleshoot and repair the issue. They have access to special tools and parts. This enables them to quickly and efficiently diagnose and fix the problem. During the inspection, guidance is provided to prevent the issue from occurring again.

Simple maintenance tasks can be done by anyone. But, complex repairs can cause further damage or injury. So, why not leave it to the experts? Hiring an expert will save you time, money and your sanity. Contact GE Appliances Factory Service now, for a hassle-free resolution to your dishwasher issues.

Benefits of hiring an expert to fix the issue

Hiring an expert for a dishwasher that hums but has no water is beneficial. They have the knowledge and experience for diagnosing the issue and fixing it fast. Plus, they have the right equipment and tools to spot potential safety hazards.

Experts save the user time and the need to learn about spare parts. They also provide reliability and quality workmanship.

Not addressing the issue can lead to expensive repairs down the road. That’s why contacting an expert promptly saves the owner time, resources, and money.

It’s best to seek the help of an expert for dishwasher repairs to ensure reliability and safety.


In summary, a humming sound coming from your dishwasher, but no heated water, can mean the inlet valve is not working or blocked. This could lead to low water pressure, and also stop water from entering the machine.

To fix this, it’s best to ask a professional plumber or technician. Tackling these problems without proper skill can cause more damage. So, a certified expert should be called to quickly get your dishwasher working again.

FAQs about Dishwasher Hums But No Water

Why is my dishwasher humming but not receiving water?

There could be several reasons why your dishwasher is humming but not receiving water. One common cause is a faulty inlet valve, which controls the amount of water entering the dishwasher. Another reason could be a clogged water supply line, which may have calcium deposits that prevent water flow. It is also possible that the float switch or door microswitch is damaged. Before inspecting the dishwasher, always disconnect it from its power source.

How can I test the dishwasher to see if it is running?

To test if your dishwasher is running, you can run a test cycle. This is typically done by pressing the “start” button and holding it down for a few seconds until the dishwasher starts. You should hear the water spraying inside the dishwasher during the cycle.

What can I do if my dishwasher is humming but not getting water?

If your dishwasher is humming but not getting water, you can try several things. First, check for any clogs in the water supply line to the dishwasher. If that is not the issue, then try dissolving 3-4 oz of citric acid or one cup of white vinegar in one quart of hot tap water, pour the solution into the sump area, and let it stand for 15-30 minutes. This can help clear any calcium deposits that may be blocking water flow. If these methods do not work, it may be time to call for expert repair service.

Where is the faulty inlet valve located in my dishwasher?

The faulty inlet valve in your dishwasher is located between the house’s water supply and the dishwasher’s tub. If you suspect that the valve is not working appropriately, it is best to call an expert to inspect and repair the issue.

How can I prevent calcium deposits from blocking my dishwasher’s water supply line?

To prevent calcium buildup in your dishwasher’s water supply line, it’s essential to maintain your appliance. Regular cleaning and maintenance can go a long way in preventing this issue. You can also use citric acid or white vinegar to dissolve any calcium deposits that may have accumulated over time.

Can I use white vinegar instead of citric acid to clean my dishwasher?

While white vinegar can be used instead of citric acid, it may not be as effective. Dissolve one cup of white vinegar in one quart of hot tap water, pour the solution into the sump area, and let it stand for 15-30 minutes before attempting to start the dishwasher again.

SmartHomeBit Staff