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

Next step

Choose the next step for F42

Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.

Based on diagnostic data

Most relevant component to inspect

Main Control Board

The central brain of the appliance that controls all components, cycles, and timings.

Typical part-only price
$120 - $280
DIY difficulty
Medium
Estimated time
20-40 mins
Where can I find the model number?

Check the rating label around the door, lid, frame, rear panel, or inside the appliance cabinet. Use the complete model number, including suffixes.

Find a part that fits my model

Verify the complete model and part number on the retailer's compatibility page before ordering.

Other parts options

Check related components first; use model search as a fallback.

Model number required

Model-compatible Dishwasher parts

Enter the complete model number to browse compatible replacement parts. This is a model-based parts search, not a diagnosis that a specific component failed.

Find a part that fits my model

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Optional routine care

Maintenance supplies

These products support cleaning or routine upkeep. They are separate from the possible repair components above and are not claimed to fix this error code or symptom.

Maintenance supply

Dishwasher Cleaner and Descaler

Supports routine removal of mineral scale, grease, and odor. It is maintenance, not a repair for a failed pump, valve, or control.

View maintenance supply
Maintenance supply

Braided Dishwasher Inlet Hose

For replacement of an externally damaged supply hose. Verify connection size, length, and appliance installation requirements before ordering.

View maintenance supply

Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. Recommendations are based on routine-care relevance, not commission rate.

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: 2026-07-20

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