Miele Dishwasher Error F42

⚡ Quick Answer: The Miele Dishwasher F42 error indicates a mains frequency registration fault, often leading to a complete halt in operation and display of the error ... ✅ DIY Fixable

What Does Error F42 Mean?

The Miele Dishwasher F42 error indicates a mains frequency registration fault, often leading to a complete halt in operation and display of the error code during program start. This issue may stem from unstable external power supply, internal control electronics, or sensor malfunctions. If your dishwasher displays F42, it may produce unusual noises and will not progress through its cycle until the fault is resolved.

Common Symptoms:

  • Dishwasher stops operation and displays F42 immediately or during program start
  • No further program progression until fault cleared or service intervention

Possible Causes

  • Mains frequency registration/recognition failure (high)
  • External power supply instability or frequency variation (medium)
  • Internal control electronics or sensor issue related to frequency detection (medium)

How to Fix Error F42

DIY Fix Basic checks and power reset

  1. Power off the dishwasher completely and disconnect from mains power
  2. Wait 5 minutes then reconnect and restart the dishwasher
  3. Observe if the F42 error reappears

Technician Only Professional diagnosis and repair

  1. Qualified technician to verify mains frequency at the installation point
  2. Inspect internal frequency detection circuitry and control board components
  3. Replace faulty control electronics or related sensor hardware as necessary

Parts needed: Control board, Frequency detection circuitry components

🛑 When to Call a Pro:
  • If error persists after power reset
  • If multiple electrical anomalies or repeated F42 errors occur

Technical Specifications

wattage 50W
component Drain Pump
resistance 30-50 ohms
part_number Miele 6260810
voltage_rating 230V AC

Common Questions

What does F42 error mean on Miele Dishwasher?

F42 indicates a mains frequency registration fault, causing the dishwasher to stop operating.

Can I fix Miele Dishwasher F42 error myself?

Yes, power off the dishwasher, disconnect it, wait 5 minutes, then reconnect and restart to see if the error persists.

How much does it cost to fix F42 error?

Repair costs vary by model and region; consult a technician for an accurate estimate.

When should I call a technician for F42?

Call a technician if the error persists after a power reset or if multiple electrical issues arise.

Sources & References

Data last verified: 2026-07-07

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