Dishwasher Not Filling With Enough Water: A Comprehensive Guide

Your dishwasher not filling with enough water can be frustrating. But don’t worry, you’re not alone. Many dishwasher owners face this common issue. The good news is that there are some straightforward steps you can take to diagnose and fix this problem. This detailed guide is here to help you through each step of the process.

Dishwasher Not Filling With Enough Water
From by Aleksandr Slobodianyk

Dishwasher Not Filling With Enough Water: Identifying The Problem

Before you start working on the solution, it’s important to confirm that the problem is indeed your dishwasher not filling with enough water. Some signs to look out for include dishes not being cleaned properly or the cycle taking longer than usual to finish.

Check the Water Supply

Start by checking the water supply to your dishwasher. Make sure it is turned on and that there are no kinks or leaks in the water supply line.

Examine The Float Assembly

The float assembly is a key component that prevents your dishwasher from overfilling. If it’s stuck in the “up” or “off” position, your dishwasher may not fill with enough water. Carefully inspect and clean the float assembly to ensure it’s functioning correctly.

For more articles on dishwashers, click here: Dishwasher Problems and Solutions: Your Ultimate Guide to Hassle-free Dishwashing

Inspect the Water Inlet Valve

The water inlet valve controls the amount of water that enters your dishwasher. If this valve is faulty or clogged, your dishwasher might not be getting enough water. If cleaning doesn’t work, you may need to replace this valve.

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IMPORTANT: Before doing any work, ensure the dishwasher is unplugged and disconnected from the power source to prevent any risk of electrical shock.

  1. Turn off the Water Supply: Find the water supply valve under your sink or behind your dishwasher and turn it clockwise to shut it off.
  2. Unplug the Dishwasher: To prevent any accidents, make sure your dishwasher is unplugged or the circuit breaker is turned off.
  3. Remove the Dishwasher: Depending on your kitchen setup, you may need to remove the dishwasher from its location to access the back panel. To do this, open the dishwasher door and remove the mounting brackets that secure it to the countertop with a screwdriver. Close the door and carefully pull the dishwasher out from under the counter.
  4. Locate the Inlet Valve: Once you’ve gotten the dishwasher out, locate the inlet valve. It’s typically at the bottom of the machine, where the water supply line connects.
  5. Remove the Supply Line: Using a wrench, carefully disconnect the water supply line from the inlet valve.
  6. Disconnect the Wiring: You’ll see some wiring connected to the inlet valve. Carefully note or take a picture of the wiring configuration for reassembly, then disconnect the wires.
  7. Remove the Inlet Valve: The inlet valve is usually attached to the dishwasher with a couple of screws. Use your screwdriver to remove these screws and then carefully pull out the valve.
  8. Install the New Inlet Valve: Place the new valve in the same position as the old one. Attach it using the screws you just removed.
  9. Reconnect the Wiring: Refer back to the picture you took earlier or your noted configuration, and reconnect the wires to the new inlet valve.
  10. Reattach the Supply Line: Using a wrench, reconnect the water supply line to the new inlet valve.
  11. Test the New Valve: Before reassembling everything, you may want to do a quick test. Turn on the water supply and check for leaks. If there are any, make sure the connections are tightened.
  12. Reinstall the Dishwasher: Slide the dishwasher back into its position under the counter. Open the door and reattach the mounting brackets to secure it under the counter.
  13. Restore Power and Water Supply: Reconnect the power and turn on the water supply.
  14. Test the Dishwasher: Run a wash cycle to check the operation of the new valve and ensure there are no leaks.
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Check for a Faulty Door Switch

A faulty door switch can prevent your dishwasher from filling with water, as it may interrupt the water flow. Make sure the door is securely closed and the switch is working properly.


These are some of the steps you can take if your dishwasher is not filling with enough water. Remember, if you are not comfortable performing these tasks, it’s always best to contact a professional.