How to replace the inlet valve in your dishwasher

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If your dishwasher isn’t filling with water, continuously fills without stopping, or shows a red indicator on a mechanical aqua-stop hose, the inlet valve may be faulty.

Replacing the valve restores proper water control and prevents costly floods. This guide will show you how to identify the correct part, remove the old valve, and install a new one — all while following safety rules and protecting your warranty.

⚠️ Be sure to unplug your dishwasher and shut off the water supply before starting.

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crwdns2931653:01crwdne2931653:0 Disconnect electricity and water

Pull the dishwasher power plug out of the wall outlet before you touch any internal parts.
Turn off the water tap that feeds the appliance to prevent flooding.
Read the manufacturer’s service instructions and warranty terms before continuing.

crwdns2931653:02crwdne2931653:0 Confirm the valve is faulty

Observe if water flows into the tub endlessly or if the machine shows a fill error and stays dry.
Look for blinking lights or error codes that indicate the control board cannot close or open the valve.
Verify the dishwasher has only one inlet path so that the single valve is the likely culprit.

crwdns2931653:03crwdne2931653:0 Identify the valve type

Inspect the inlet hose to determine whether you have a standard solenoid valve, a mechanical aqua‑stop hose, or a complete electronic aqua‑stop assembly.
A basic valve is a single solenoid in one plastic housing with no outer sleeve.
A mechanical aqua‑stop has an outer hose and a red window that turns red if the inner hose bursts.
A complete aqua‑stop includes an external solenoid box and cannot be unscrewed at the machine end.
Buy a replacement that matches your original valve style to maintain safety certification.

crwdns2931653:04crwdne2931653:0 Expose the inlet valve

Pull the dishwasher far enough forward to reach the point where the inlet hose enters the cabinet.
Locate the solenoid valve mounted at that entry point inside the machine base.
Remove any screw or twist‑lock that secures the valve to its bracket while supporting the plastic body.

crwdns2931653:05crwdne2931653:0 Detach hose and wiring

Open the spring clamp with pliers or a flat screwdriver and slide it away from the valve nipple.
Wiggle the inlet hose off the valve while holding the fitting steady to avoid cracking it.
Take a photo of the two wires before removal so they return to the correct terminals.
Pull the spade connectors straight off the valve terminals.

crwdns2931653:06crwdne2931653:0 Remove the valve body

Rotate or slide the valve out of its mounting plate and lift it clear of the dishwasher.

crwdns2931653:07crwdne2931653:0 Install the new standard valve

Seat the replacement valve into the mounting plate in the same orientation as the original.
Push the water hose fully onto the valve nipple and return the clamp to its groove.
Reconnect the two electrical terminals exactly as they were photographed.

crwdns2931653:08crwdne2931653:0 Replace a complete aqua‑stop assembly (if fitted)

Disconnect the original full aqua‑stop hose and its plug‑in wiring harness from inside the cabinet.
Feed the new hose along the same route and secure its electrical connector firmly.
Ensure both solenoids sit correctly and all hose joints are hand‑tight.

crwdns2931653:09crwdne2931653:0 Secure the assembly

Return the inlet hose to its original routing and verify the clamp seats evenly.
Fasten the valve bracket or screw so the component cannot move during operation.

crwdns2931653:010crwdne2931653:0 Restore services and test

Open the water tap and inspect all joints for leaks.
Plug the dishwasher back in and run a short fill cycle to confirm it takes in water properly and no leaks are visible.
If you notice any drips, turn off the water and re-tighten the fittings.
If the machine still fails to fill, recheck wiring polarity and valve orientation.
As a safety measure, always close the water tap when leaving home for an extended period to prevent potential flooding.

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Regularly inspect the inlet hose for a red burst indicator, shut the water tap during long absences, and keep photos of wiring for future reference. Following these habits and the steps above will keep your dishwasher filling safely and protect your kitchen from floods.