A dishwasher not filling with water can quickly create a pile-up when school lunches, reusable bottles and busy evening meals return to the kitchen. The dishwasher water inlet valve may be responsible, but it is not the only component that can stop water from entering.
A closed supply valve, kinked hose, unlatched door, blocked float, dirty inlet screen or incorrectly positioned drain hose can create similar symptoms. Before ordering a dishwasher inlet valve replacement, listen to the beginning of the cycle and complete a few basic checks.
Some dishwashers drain briefly before they begin filling. Samsung Canada notes that this initial drain may last about 35 seconds, so the first operating sound does not necessarily mean the appliance is failing to take in water.
What Does a Dishwasher Water Inlet Valve Do?
The inlet valve is normally located behind the lower access panel near the point where the household water line enters the dishwasher.
When the appliance reaches the fill stage, an electrical solenoid opens the valve and allows water into the tub. The valve then closes once the dishwasher receives the required amount.
An inlet valve can become restricted by mineral deposits, fail electrically, stick mechanically or leak around its housing and connections. This may cause slow filling, no filling, continuous filling or water beneath the appliance.
Signs the Inlet Valve May Need Attention
There are many signs that your inlet valves gives before eventually giving up. A few of those are mentioned in this section.
The Dishwasher Hums but Does Not Fill
A humming sound during the expected fill stage may mean the solenoid is receiving a signal but the valve cannot open properly.
However, the same symptom can be caused by:
- A closed household shut-off valve
- Low water pressure
- A kinked supply hose
- A blocked inlet screen
- A stuck overfill float
Check these simpler possibilities before replacing the valve.
The Dishwasher Takes Too Long to Fill
A restricted screen or valve that no longer opens fully can reduce incoming water flow. The dishwasher may begin washing with too little water, leaving detergent undissolved or dishes poorly cleaned.
Bosch recommends checking the water supply, hose, pressure and inlet filter when a dishwasher does not receive enough water.
Water Continues Entering After the Cycle Stops
If water keeps entering while the dishwasher is switched off, close the household water supply and disconnect power.
The inlet valve may be stuck open and unable to seal. Continued filling can lead to overflowing, cabinet damage or water reaching nearby electrical components.
Water Leaks Near the Lower Front
Moisture or mineral deposits around the inlet valve, supply fitting or outlet hose may indicate a loose connection or damaged valve.
Do not assume every leak comes from the inlet valve. Door gaskets, pumps, drain hoses and tub components can also leak.
Checks to Make Before Replacing the Valve
This sections provides you insights on the things that you should check before replacing the water inlet valve.
1. Confirm the Water Supply Is Open
Locate the dishwasher shut-off valve, often found below the kitchen sink, and make sure it is fully open. Frigidaire recommends confirming that the household water valve is open and the supply line is not pinched or restricted when the dishwasher is not filling.
2. Inspect the Water Supply Hose
Look for:
- Sharp bends
- Flattened or crushed sections
- Moisture around fittings
- Corrosion
- Loose connections
- Visible hose damage
A restricted hose can reduce water flow enough to resemble a faulty inlet valve.
3. Check the Door and Control Settings
The dishwasher may not fill if the door is not completely latched. Make sure a large plate, rack or utensil is not preventing the door from closing. Also check for:
- Child Lock
- Delay Start
- A flashing Start or Resume light
- An interrupted or cancelled cycle
Whirlpool lists an open door, closed water supply and incorrectly installed drain hose among common reasons a dishwasher may not fill.
4. Inspect the Float or Overfill Protection
Many dishwashers use a float inside the tub to help prevent overfilling. Food debris or a small object may hold the float in the raised position, causing the dishwasher to behave as though it already contains enough water. Disconnect power before checking whether an accessible float moves freely. Follow the instructions for the specific model.
5. Review the Drain Hose Position
A drain hose installed too low may allow incoming water to siphon out before the tub reaches the proper level. Whirlpool advises that the drain-hose loop should be positioned at least 20 inches above the floor on applicable installations.
6. Check the Inlet Screen Carefully
The valve or water connection may contain a small screen that catches sediment from the supply. Turn off both power and water before inspecting it. Clean the screen only when permitted by the manufacturer. Do not puncture, drill through or permanently remove it.
When Dishwasher Inlet Valve Replacement Makes Sense
Replacement becomes more likely after the water supply, hose, pressure, door latch, settings, float, drain installation and inlet screen have been checked. A new valve may be required when:
- The valve body is cracked or leaking
- The dishwasher has adequate water pressure but still will not fill
- The valve hums but does not open
- Water continues entering after the appliance stops
- The valve is heavily corroded or restricted
- The solenoid fails a qualified electrical test
Live-voltage testing around water should be left to a qualified appliance technician. Do not attempt to bypass the door latch, float or other safety controls. Sealed inlet valves are generally replaced as complete assemblies rather than opened and rebuilt.
How to Find the Correct Brand-Specific Inlet Valve
Dishwasher valves are not universal. Similar-looking parts can use different connectors, mounting brackets, ports, electrical specifications and flow designs. Before purchasing, record:
- Complete dishwasher model number
- Original inlet-valve part number
- Superseded replacement number
- Connector arrangement
- Inlet and outlet port design
- Mounting-bracket shape
- Included fittings or elbows
Quick Parts Depot’s dishwasher inlet-valve category currently includes model-specific options across Whirlpool, Samsung, Frigidaire, Bosch, GE and other brands.
Whirlpool Dishwasher Inlet Valve
A Whirlpool dishwasher inlet valve should be selected using the full model and original part number.
For example, the Whirlpool W10872255 water inlet valve is intended for compatible Whirlpool models. Similar Whirlpool parts may differ in connector, mounting style or model series.
Samsung Dishwasher Inlet Valve
A Samsung dishwasher inlet valve can use a different bracket, electrical connector and replacement number.
Quick Parts Depot lists the Samsung DD81-02265A inlet valve for compatible repairs. Verify the dishwasher model and original valve before ordering.
Frigidaire Dishwasher Water Valve
The Frigidaire 5304460982 dishwasher water valve is another model-specific option.
A Frigidaire dishwasher water valve should be compared by part number, shape, fitting and connection style rather than by brand alone.
Bosch Dishwasher Inlet Valve
A Bosch dishwasher inlet valve may use a particular hose, fitting, bracket or flow arrangement. The Bosch 00628334 inlet valve is designed for compatible models and should not be treated as a universal Bosch replacement.
Can You Replace the Inlet Valve Yourself?
An experienced DIY repairer may be able to replace an accessible valve, but the repair involves both water and electricity.
Before starting:
- Unplug the dishwasher or switch off its breaker.
- Close the household water valve.
- Place towels beneath the work area.
- Photograph the existing wiring and hose positions.
- Compare the old and new valves carefully.
- Check every connection for leaks after installation.
Professional service is safer when fittings are corroded, wiring is damaged, the dishwasher must be removed from tight cabinetry or the diagnosis is uncertain.
Back-to-School Dishwasher Checklist
Before the household schedule becomes busier:
- Run a short cycle and confirm water enters normally.
- Check below the sink for hose kinks or leaks.
- Clean the dishwasher filter.
- Inspect the spray arms for blocked holes.
- Confirm the door closes without rack interference.
- Check for error codes or repeated fill attempts.
- Address small leaks before they damage the floor or cabinet.
For a wider maintenance review, read Top Dishwasher Parts You Should Upgrade in 2026.
Final Takeaway
When a dishwasher is not filling, begin with the simplest causes. Wait for the initial drain phase, open the water supply fully, inspect the hose, latch the door, check the float and confirm the drain hose is positioned correctly.
If the supply is strong but the dishwasher water inlet valve leaks, stays closed, remains open or fails a technician’s test, installing the correct model-specific replacement may restore normal filling without replacing the complete appliance.
Explore dishwasher replacement parts and dishwasher water inlet valves from Quick Parts Depot. Match the model number, original part number, ports, connectors and bracket before ordering.
FAQs
1. How do I know if my dishwasher water inlet valve is faulty?
The valve may be faulty if the water supply is strong but the dishwasher does not fill, the valve hums without opening, water leaks from the valve body or water continues entering after the cycle stops.
2. Why is my dishwasher not filling with water even though it has power?
The supply valve may be closed, the hose may be restricted, the door may not be latched, the float may be stuck, a control setting may be active or the inlet valve may have failed.
3. Can I clean a dishwasher inlet-valve screen?
Some accessible screens may be cleaned carefully after shutting off power and water. Follow the manufacturer’s instructions and do not damage or remove the screen.
4. Are Whirlpool, Samsung, Frigidaire and Bosch inlet valves interchangeable?
No. Valves differ by model, electrical connector, port layout, bracket, fitting and operating specification.
Can a faulty inlet valve cause the dishwasher to overfill?
Yes. A valve that cannot close may continue allowing water into the tub. Shut off the household supply and power if the dishwasher keeps filling while switched off.