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Error Code

Miele Dishwasher F40 Code Electronic Module Fault

Plain-language guidance for Miele code F40 on Dishwasher — symptoms, safe checks, and when to call a technician.

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At a glance

Overview

Miele Repair Editorial Team Written by Miele Repair Editorial Team Editorial Team Published October 20, 2026 Updated October 28, 2026
Error code F40
Appliance Dishwasher
Quick answer

F40 on a Miele dishwasher is an electronic module fault, a technical fault.

Model compatibility

Miele reuses codes across series and model years, so F40 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.

Plain language

What this code means

Electronic module fault.

F40 snapshot

  • Message: F40
  • Fault area: electronic module
  • Action: arrange a repair visit

Also check the list

  • F53: speed sensor fault
  • F51: pump pressure level switch fault

Book Miele dishwasher service

In the Miami, New York, Houston, Los Angeles and San Diego metro areas, Miele dishwasher service is booked on (844) 459-5005. Mention the code on the display, your model number and any steps already taken. The dishwasher repair page explains more.

At a glance

Code F40
What it means Electronic module fault.
What you can check There is nothing you can check yourself for F40. Leave the dishwasher off and keep the code ready.
When to call a technician Arrange a repair visit right away, because this electronic module fault is outside what an owner can handle.

Source: Miele support, Dishwasher Fault F40

Caution

Safety warning

Important safety warning

Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.

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(844) 459-5005
Phone (844) 459-5005
Email info@mieleservicecenter.support
Hours Mon–Sat: 8:00 AM – 7:00 PM
Service area Serving Miami, New York, Houston, Los Angeles and San Diego metro areas.
Response time Same-day and next-day appointments in most areas.