Miele Dishwasher: error code F24

Professional Repair Guide

What is this symptom?

If your Miele dishwasher displays error code F24, it's indicating a heating issue during a wash cycle. This may cause the water not to heat properly, leading to incomplete cycles and potential drainage after the error appears. Understanding the causes and solutions can help restore your appliance's functionality.

Urgency: Medium

Important Tips for Miele Models

Official Miele states F24 indicates a heating relay contact fault and recommends professional service because this fault is technical and not userâ€‘serviceable. (Miele Appliance Support)(Miele

Possible Causes

Heating relay contact fault

How to Identify: F24 shown on display; dishwasher does not heat water; often occurs shortly after water fill. (Miele Appliance Support

Part: Heater relay (on control board)

Faulty heating element or heater circuit

How to Identify: Dishwasher fails to heat; multimeter resistance outside expected range. (ersatzteilshop.de

Part: Heating element / heater circuit

Wiring/connectivity issue between control board and heater

How to Identify: Visual damage or loose connectors on wiring between heater relay and heater assembly. (Miele Appliance Support

Part: Wiring harness / connectors

DIY Solutions

Power reset and basic inspection

Easy 10â€‘15 minutes

Tools Needed: None

Turn off dishwasher and disconnect power at mains.
Wait ~5 minutes to allow electronics to reset.
Reconnect power and run a short cycle to see if error persists.

⚠️ Safety First: Ensure appliance is unplugged before any inspection.

Professional Repairs

Replace heater relay on control board

Estimated Cost: $70 - $150

Replace heating element

Estimated Cost: $50 - $200

Inspect and repair wiring/connectors

Estimated Cost: $50 - $120

When to Call a Professional

Error F24 persists after reset

You detect damaged or burnt electrical components

You cannot safely access internal wiring or heating element

Preventive Maintenance

Regularly inspect dishwasher heating system during service: Prevents unexpected heating relay or element faults
Frequency: annually

Frequently Asked Questions

Why is my Miele Dishwasher error code F24?

Error code F24 indicates a heating fault, often due to a heating relay contact issue, faulty heating element, or wiring problems.

How do I fix Miele Dishwasher error code F24 myself?

Try a power reset: turn off the dishwasher, disconnect power, wait 5 minutes, reconnect, and run a short cycle.

How much does it cost to fix error code F24?

Professional repairs can range from $50 to $200, depending on whether you need to replace the heating relay, element, or inspect wiring.

When should I call a technician for error code F24?

If DIY solutions don't resolve the issue, or if you're uncomfortable working with electrical components, it's best to call a technician.

References & Sources

Miele Dishwasher Error F24 â€“ Heating Relay Contact Fault Official
Miele Dishwasher Error F24 (UK Support) Official

Community Analytical Insights

Analysis based on real user discussions from appliance repair communities

Can I Fix This Myself?

75%

DIY Success Rate Difficulty: Either

Common Issues Reported by Users

Blocked drain pump or filter
Faulty water inlet valve
Malfunctioning control board

User Suggested Solutions

Inspect and clean the drain pump and filter. Remove the lower spray arm and check for any debris. Clean the filter under running water and ensure the pump is free of obstructions.
Test the water inlet valve for continuity using a multimeter. If faulty, replace the valve. Ensure the water supply is turned off before replacing.
Check the control board for any visible signs of damage or burnt components. If necessary, replace the control board by disconnecting the power and following the manufacturer's instructions.