Dishwasher Error Code E24: Troubleshooting Guide (Troubleshooting Guide)

On this page

Quick answer
Confirm the symptom
Tools and prep
Step-by-step troubleshooting
Common causes table
Parts matching
When to call a pro
FAQ
Related guides

Quick answer

Error code E24 on your dishwasher usually indicates a water supply issue. Check the water inlet valve and ensure the water supply is on and unobstructed. If the problem persists, the valve may need replacement.

Confirm the symptom

Error code E24 is displayed on the control panel
Dishwasher is not filling with water
Water supply to the dishwasher is low or off

Tools and prep

Screwdriver set
Multimeter
Adjustable wrench
Bucket or towel
Turn off the dishwasher power at the circuit breaker
Shut off the water supply to the dishwasher

Step-by-step troubleshooting

Check Water Supply
Do: Verify the water supply valve is fully open and the house water is on.
Observe: Water flows freely from the supply line when the valve is open.
Means: The supply is not the issue if water flows.
Next: Check the inlet valve
Inspect Inlet Valve
Do: Look for debris or blockage in the inlet valve filter screen.
Observe: Debris is clogging the valve or the valve is damaged.
Means: A clogged or faulty valve is likely the cause.
Next: Clean or replace the valve
Test Inlet Valve with Multimeter
Do: Use a multimeter to check for continuity in the inlet valve.
Observe: No continuity indicates a faulty valve.
Means: The inlet valve needs replacement.
Next: Replace the inlet valve
Check Water Pressure
Do: Test the water pressure using a pressure gauge on the supply line.
Observe: Water pressure is below 20 psi.
Means: Low water pressure is causing the issue.
Next: Adjust or resolve the water pressure issue
Inspect the Dishwasher Hose
Do: Check the dishwasher hose for kinks or blockages.
Observe: Hose is kinked or clogged.
Means: Clear the blockage or replace the hose.
Next: Clear or replace the hose
Reset the Dishwasher
Do: Unplug the dishwasher for 1 minute, then plug it back in.
Observe: Error code clears and the dishwasher operates normally.
Means: The issue was temporary and resolved.
Next: Monitor for recurrence

Common causes

Cause	Likelihood	Difficulty	Part often needed
Clogged Inlet Valve Debris or sediment buildup prevents water flow.	Common	Easy	Inlet Valve
Faulty Inlet Valve The valve is not opening due to electrical failure.	Common	Medium	Inlet Valve
Low Water Pressure Insufficient water pressure prevents proper filling.	Sometimes	Easy	Pressure Regulator
Kinked or Clogged Hose A blocked or kinked hose restricts water flow.	Sometimes	Easy	Dishwasher Hose
Water Supply Valve Off The main water supply to the dishwasher is closed.	Rare	Easy	None
Control Board Issue A malfunctioning control board misinterprets sensor data.	Rare	Hard	Control Board

Parts matching

If you need to replace parts, look for these common components:

Inlet Valve (part number varies by model)
Dishwasher Hose with correct diameter and length
Pressure Regulator if low water pressure is the issue

Check your dishwasher's model number to find the exact part number for the inlet valve and hose.

When to call a professional

Error persists after replacing the inlet valve and checking the water supply
You suspect a control board issue or complex plumbing problem
You are unsure about electrical testing or part replacement
Water leaks or pressure issues continue after repairs

FAQ

Can I use the dishwasher without fixing error E24?

No, the dishwasher will not operate until the water supply issue is resolved.

How do I find the inlet valve on my dishwasher?

The inlet valve is typically located at the bottom of the dishwasher, near the water supply line connection.

What is the average cost to replace an inlet valve?

The cost ranges from $50 to $150, including parts and labor, depending on the model and labor rates.

How often should I clean the inlet valve filter?

It's recommended to clean the inlet valve filter every 6–12 months, depending on water hardness and usage.