Standing in a wet kitchen floor is a terrible way to start your morning. You just wanted clean plates. Now you have a big mess to clean up. This guide will show you how to find and fix the water valve issue yourself in less than one hour so you can get back to cooking.
You can solve this common issue by shutting off the power and water, removing the bottom kickplate, and testing the water inlet valve with a multimeter for electrical continuity. If the valve lacks continuity or shows physical cracks, you must replace it with a new part to stop the water issues.
Why Your Dishwasher Needs a Good Water Inlet Valve
Your main kitchen appliance needs water to clean your dirty plates and cups. This small part is the gatekeeper that lets water flow into the tub at the right time.
Valve Location in the Cabinet
You will find this part at the bottom of your dishwasher behind the lower kickplate. It sits on the left side or the right side depending on your model. Accessing it is simple but you must bend down to see it. It connects directly to your home water line. It also connects to the internal hose that fills the tub. You should look for a metal or plastic body with wires attached to it. It is very easy to spot once you remove the metal plate.
Valve Function in the Cycle
This part acts like an electric tap that turns on when the machine needs water. The main control board sends a small electrical charge to the solenoid on the valve. This charge opens the valve for a set time. Water flows through it and into the tub to wash your dishes. Once the time is up, the power stops and the valve closes. If this does not happen, you might experience low water levels in the tub which leaves dishes dirty.
Common Wear and Tear Spots
Over time, minerals in your water will build up inside the valve. These hard deposits block the water from flowing freely. The plastic body of the valve can also crack during cold winter months if your house gets too cold. Sometimes, the electrical coil inside simply burns out after years of use. If you see water leaks from the bottom, the plastic casing might have a small hairline crack. You will need to replace the entire part if this happens to your machine.
Water Pressure Needs for Success
This dishwasher part requires a specific level of water pressure to close properly. If your home water pressure is too low, the valve might stay open. This can cause the dishwasher to fill even when it is turned off. Your home water line should have at least twenty pounds per square inch of pressure. Without this pressure, you might notice a slow fill times during starts which ruins the washing cycle. Always check your main home water valve first to ensure it is fully open.
Electric Signals From the Board
The electronic control board is the brain of your dishwasher. It sends twelve volts of electricity to the inlet valve when water is needed. If the board has a short circuit, it might stop sending this power. This will leave your machine dry and useless. You can test this by checking the terminal wires on the valve. When the board sends power but nothing happens, you know the valve is bad. A bad signal can lead to a dishwashing unit will not fill scenario on any weekday.
Screen Filter Blockage Issues
Inside the valve opening sits a tiny metal screen filter. This screen catches rust, sand, and dirt before they can enter your machine. If your home has old metal pipes, this screen fills with debris quickly. A clogged screen stops water from entering even if the valve is wide open. You will notice a strange humming noise during cycles when the valve tries to draw water but cannot. Cleaning this screen can sometimes save you the cost of a new part.
Before you begin to pull apart your machine, gather all the tools you will need for this job. Having everything close to you makes the repair much easier and prevents you from getting frustrated while working on your kitchen floor.
- A screwdriver to remove the lower panel screws
- A pair of pliers to slide back the hose clamps
- An adjustable wrench for the main water line connection
- A digital multimeter to check the valve for continuity
- A small dry towel to catch any spilled water
- A small bucket to drain the excess water safely
How to Handle Samsung Dishwasher Water Inlet Valve Troubleshooting
Follow these simple steps to find out why your dishwasher is acting up and fix the problem quickly. You do not need to pay a costly plumber for this job.
Safety First and Power Shutoff
Before you touch anything under the dishwasher, you must turn off the electricity. Go to your home breaker box and flip the switch labeled for the kitchen dishwasher. This keeps you safe from any electrical shocks while you work near the wet areas under the machine.
Next, turn off the water supply to the dishwasher. Look under your kitchen sink for the hot water valve and turn it clockwise until it stops. If you do not turn this valve off first, you will have hot water spraying everywhere when you remove the water line.
Make sure the area is dry before you start. Use a towel to wipe up any old wet spots on the kitchen floor. Working in a dry space is much easier and safer for everyone. If you have dishes still dirty after washing cycles, this is the best first step.
- Locate your home breaker box on the wall
- Flip the dishwasher switch to the off position
- Turn the kitchen sink water valve clockwise to close it
- Verify the power is off by pressing panel buttons
Panel Removal and Access Steps
You must remove the lower kickplate to see the internal parts under the unit. Use your screwdriver to remove the screws holding the metal plate in place. Put these small screws in a small cup so you do not lose them on the kitchen floor.
Carefully pull the metal plate away from the machine and set it aside. You might see a thick layer of soft insulation material behind the plate. Gently fold this insulation upward to reveal the water valve on the bottom left side of your dishwasher frame.
Now you can see the valve clearly in the open space. Check the area around the plastic valve body for any signs of wet spots or water damage. If you notice water keeps running into the machine even when