🍽️Dishwasher

F42

Miele · Miele G 5266 SCVi 24" Fully Integrated Dishwasher with AutoDos

Miele Miele G 5266 SCVi 24" Fully Integrated Dishwasher with AutoDos F42 Error Fix: Communication Fault

Communication failure between the main control board (ELP) and the user interface board. The two boards communicate via a serial data bus. Check the ribbon cable or wire harness connecting the boards. Reseat all connectors. Check for water damage or corrosion on connector pins.

critical2 fixes available✨ Free fix available

Quick Answer

Error F42 on the Miele Miele G 5266 SCVi 24" Fully Integrated Dishwasher with AutoDos means: Communication Fault. The top-ranked community fix is “Replace Main Control Board or User Interface Board” (hard difficulty, ~90 min, DIY cost: $15-$20). 2 community-ranked fixes available below.

Published February 2026 · 2 fixes · dishwasher

Content is based on manufacturer service documentation, community repair experience, and OEM technical bulletins. Always verify with your owner's manual.Learn about our editorial standards.

When to Call a Professional

While many dishwasher repairs can be done safely at home, consider hiring a qualified technician if:

The repair involves electrical wiring, gas lines, or refrigerant
You've tried the top-ranked fix and the error persists
You smell gas, see sparking, or notice water leaking
The repair requires specialized tools you don't have
Your appliance is still under manufacturer warranty

Average professional repair cost for this issue: $300-$450.

Other Miele Models with Error F42

Miele G 7366 SCVi 24" Fully Integrated Dishwasher with AutoDos

dishwasher · 2 fixes

Other Miele Miele G 5266 SCVi 24" Fully Integrated Dishwasher with AutoDos Error Codes

DETERGENT DISP FAIL

Detergent Dispenser Mechanism Failure

2 fixes

DOOR LATCH WEAR

Door Latch Mechanism Worn

Drain Pump Failure

Water Intake Fault

Water Drainage Fault

Water Inlet Temperature Too Cold

2 fixes

F14

Water Inlet Temperature Too Hot

2 fixes

F15

Door Fault

2 fixes

People Also Ask About Miele Miele G 5266 SCVi 24" Fully Integrated Dishwasher with AutoDos Error F42

What does error code F42 mean on a Miele Miele G 5266 SCVi 24" Fully Integrated Dishwasher with AutoDos?

Error code F42 on the Miele Miele G 5266 SCVi 24" Fully Integrated Dishwasher with AutoDos means: Communication Fault. Communication failure between the main control board (ELP) and the user interface board. The two boards communicate via a serial data bus. Check the ribbon cable or wire harness connecting the boards. Reseat all connectors. Check for water damage or corrosion on connector pins.

How do I fix error code F42 on my Miele Miele G 5266 SCVi 24" Fully Integrated Dishwasher with AutoDos?

The most successful fix is "Replace Main Control Board or User Interface Board" (hard difficulty, ~90 minutes). Estimated DIY cost: $15-$20. HomeMD has 2 community-ranked fixes for this error.

Is error code F42 on a Miele Miele G 5266 SCVi 24" Fully Integrated Dishwasher with AutoDos serious?

This error is rated critical severity. It is generally not urgent and can often be resolved with a simple DIY fix.

Can I fix Miele Miele G 5266 SCVi 24" Fully Integrated Dishwasher with AutoDos error F42 myself?

Yes — the top-ranked community fix ("Replace Main Control Board or User Interface Board") is rated hard difficulty and takes about 90 minutes. Tools needed: T20 Torx screwdriver, Flathead screwdriver, Multimeter.

How much does it cost to repair Miele Miele G 5266 SCVi 24" Fully Integrated Dishwasher with AutoDos error F42?

DIY cost: $15-$20. Professional repair typically costs $300-$450. Many homeowners save money by trying the top-ranked community fix first.

What other error codes does the Miele Miele G 5266 SCVi 24" Fully Integrated Dishwasher with AutoDos have?

The Miele Miele G 5266 SCVi 24" Fully Integrated Dishwasher with AutoDos has 8 other known error codes, including: DETERGENT DISP FAIL (Detergent Dispenser Mechanism Failure), DOOR LATCH WEAR (Door Latch Mechanism Worn), DRAIN PUMP FAIL (Drain Pump Failure), F11 (Water Intake Fault), F12 (Water Drainage Fault), and 3 more.

Which other Miele models have the F42 error?

Error code F42 also appears on 1 other Miele model: Miele G 7366 SCVi 24" Fully Integrated Dishwasher with AutoDos. The fix may vary by model, so check each model's specific page for tailored repair steps.

What other error codes does the Miele Miele G 5266 SCVi 24" Fully Integrated Dishwasher with AutoDos have?

The Miele Miele G 5266 SCVi 24" Fully Integrated Dishwasher with AutoDos has 8 other known error codes:

DETERGENT DISP FAIL — Detergent Dispenser Mechanism Failure (2 fixes)
DOOR LATCH WEAR — Door Latch Mechanism Worn (2 fixes)
DRAIN PUMP FAIL — Drain Pump Failure (2 fixes)
F11 — Water Intake Fault (2 fixes)
F12 — Water Drainage Fault (2 fixes)
F13 — Water Inlet Temperature Too Cold (2 fixes)
F14 — Water Inlet Temperature Too Hot (2 fixes)
F15 — Door Fault (2 fixes)

Which other Miele models have the F42 error?

Error code F42 also appears on 1 other Miele model:

Miele G 7366 SCVi 24" Fully Integrated Dishwasher with AutoDos (dishwasher) · 2 fixes

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