Miele Dishwasher Error Code F24: How to Fix It

Hard 45-90 minutes Critical Severity Verified June 2026
Error Code
F24
Brand
Miele
Product Type
dishwasher
Severity
Critical
DIY Difficulty
Hard
Estimated Fix Time
45-90 minutes
Error code F24 on your Miele dishwasher indicates the heater relay is stuck in the closed position, causing a safety shutdown to prevent overheating damage. This critical error requires immediate attention as the heating element could run continuously without proper control. The issue is typically caused by a faulty relay board or damaged heating element circuit.
Ad

Tools You'll Need

How to Fix Error Code F24

  1. Safely Power Down the Dishwasher

    Always disconnect power before servicing electrical appliances to prevent shock or electrocution.
  2. Access the Control Board

    Support the dishwasher properly when pulling it out to prevent tipping or damage to water lines.
  3. Locate and Inspect the Relay Board

  4. Test the Heating Element Resistance

    Ensure all power is disconnected and wait for the heating element to cool completely before testing.
  5. Check Relay Operation

  6. Replace the Faulty Component

    Use only genuine Miele parts or manufacturer-approved replacements to maintain safety and warranty coverage.
  7. Reassemble and Test

Parts You May Need

Dishwasher control board
Check Price on Amazon
Dishwasher heating element
Check Price on Amazon
Wire connectors
Check Price on Amazon
Dishwasher control board
Check Price on Amazon
Dishwasher heating element
Check Price on Amazon
Wire connectors
Check Price on Amazon
Dishwasher control board
Check Price on Amazon
Dishwasher heating element
Check Price on Amazon
Wire connectors
Check Price on Amazon
Dishwasher control board
Check Price on Amazon
Dishwasher heating element
Check Price on Amazon
Wire connectors
Check Price on Amazon
Dishwasher control board
Check Price on Amazon
Dishwasher heating element
Check Price on Amazon
Wire connectors
Check Price on Amazon
Dishwasher control board
Check Price on Amazon
Dishwasher heating element
Check Price on Amazon
Wire connectors
Check Price on Amazon
Dishwasher control board
Check Price on Amazon
Dishwasher heating element
Check Price on Amazon
Wire connectors
Check Price on Amazon
Dishwasher control board
Check Price on Amazon
Dishwasher heating element
Check Price on Amazon
Wire connectors
Check Price on Amazon
Dishwasher control board
Check Price on Amazon
Dishwasher heating element
Check Price on Amazon
Wire connectors
Check Price on Amazon
Dishwasher control board
Check Price on Amazon
Dishwasher heating element
Check Price on Amazon
Wire connectors
Check Price on Amazon
Dishwasher control board
Check Price on Amazon
Dishwasher heating element
Check Price on Amazon
Wire connectors
Check Price on Amazon
Ad

When to Call a Professional

Call a professional appliance technician if you're uncomfortable working with electrical components, cannot safely access the control board, or if the error persists after replacing the suspected faulty parts. Also seek professional help if multiple error codes appear simultaneously, as this may indicate a more complex electrical issue requiring specialized diagnostic equipment.

Frequently Asked Questions

Can I still use my Miele dishwasher with F24 error code?
No, you should not use the dishwasher with error code F24. This is a critical safety error that prevents operation to protect against overheating damage. The heating element could run continuously without proper control, potentially causing fire or damage.
How much does it cost to fix Miele dishwasher F24 error?
Repair costs typically range from $150-400 depending on whether you need a new control board ($200-300) or heating element ($100-200), plus labor if hiring a technician. DIY repairs can save $100-150 in labor costs but require electrical knowledge.
What causes the heater relay to stick closed in Miele dishwashers?
Common causes include electrical surges, moisture infiltration into the control board, normal wear after years of use, or a shorted heating element that draws excessive current. High mineral content in water can also contribute to electrical component degradation over time.
How can I prevent F24 error from happening again?
Use a surge protector, ensure proper ventilation around the dishwasher, clean the unit regularly to prevent moisture buildup, and have annual maintenance performed. Also, use rinse aid and clean the filter regularly to reduce mineral buildup that can affect electrical components.
Is F24 error covered under Miele warranty?
Coverage depends on your dishwasher's age and warranty terms. Miele typically provides 2 years parts and labor warranty. If your unit is older, the repair would be out of pocket. Check your warranty documentation or contact Miele customer service to verify coverage.