Dishwasher Error E24

Quick answer

Error E24 usually indicates a water supply issue. Check the water inlet valve and ensure the water supply is on. If the problem persists, the valve may need replacing.

Confirm the symptom

• Error code E24 displayed on the dishwasher panel
• Dishwasher fails to fill with water
• Dishes are not being cleaned properly due to lack of water

Tools and prep

• Screwdriver
• Multimeter
• Water supply shut-off wrench
• Safety gloves
• Towel or rag
• Ensure the dishwasher is unplugged or the circuit breaker is off to avoid electrical hazards

Step-by-step troubleshooting

1. Check Water Supply
   Do: Verify that the water supply valve is fully open and there is no kink in the water supply line.
   Observe: Water should flow freely to the dishwasher.
   Means: If water is not reaching the dishwasher, the issue is with the supply line or valve.
   Next: If water supply is normal, proceed to the next step.
2. Inspect Inlet Valve
   Do: Locate the water inlet valve and check for any visible damage or blockage.
   Observe: The valve should be free of debris and in good condition.
   Means: A clogged or damaged valve can prevent water from entering the dishwasher.
   Next: If the valve is clean and undamaged, move to the next step.
3. Test Inlet Valve
   Do: Use a multimeter to test the water inlet valve for continuity.
   Observe: The multimeter should show continuity if the valve is working.
   Means: No continuity indicates a faulty valve that needs replacement.
   Next: If the valve is faulty, proceed to replace it.
4. Check for Clogs
   Do: Inspect the inlet filter and the water supply line for any clogs or sediment buildup.
   Observe: The filter and line should be clear of debris.
   Means: Clogs can restrict water flow and trigger the E24 error.
   Next: If clogs are found, clean them out before proceeding.
5. Examine Pressure Switch
   Do: Check the pressure switch for any signs of damage or malfunction.
   Observe: The pressure switch should operate smoothly without sticking.
   Means: A faulty pressure switch can incorrectly signal a water supply issue.
   Next: If the pressure switch is faulty, it may need to be replaced.
6. Inspect the Control Board
   Do: Look for any visible signs of damage or burn marks on the control board.
   Observe: The control board should be free of damage.
   Means: A damaged control board can misinterpret sensor signals, causing the E24 error.
   Next: If the control board is damaged, it may need professional repair or replacement.

Common causes

Parts matching

If you need to replace any parts, ensure they are compatible with your dishwasher model.

• Water Inlet Valve: Ensure it matches your dishwasher's specifications.
• Inlet Filter: Verify the correct size and type for your model.
• Pressure Switch: Check compatibility with your dishwasher's make and model.
• Control Board: Confirm it is the correct replacement for your unit.

Consult your dishwasher's manual or the manufacturer's website for the correct part numbers.

When to call a professional

• If you are unable to locate or access the water inlet valve or pressure switch safely
• If the control board shows signs of damage and you are not comfortable replacing it
• If the error persists after replacing all suspected parts
• If you are unsure about electrical testing or handling water supply lines
• If the dishwasher is under warranty and you do not want to risk voiding it by performing DIY repairs

FAQ

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