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Error Code

Miele Dishwasher F40 Error Code

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

Maya Chen Written by Maya Chen Appliance Repair Content Specialist Published October 20, 2026

Content status Verified

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.

Seeing F40 on the display of your Miele dishwasher means the electronic module has a fault. Owners cannot correct it, according to Miele.

Then

Make a repair appointment.

Close relatives: F42 (mains frequency registration) and F47 (also an electronic module fault).

Miele dishwasher service in Los Angeles

For Miele dishwasher service in Los Angeles, call (310) 742-0025. Tell the person on the line which code is showing, give the model number and mention anything you already tried. The Miele dishwasher repair page has the rest.

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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Request a repair visit for a Miele appliance in Los Angeles County or Orange County. Share the model and symptom — or call and we will take the details.

(310) 742-0025
Phone (310) 742-0025
Email info@mielelosangeles.support
Hours Mon–Sat: 8:00 AM – 7:00 PM
Service area Serving Los Angeles County and Orange County.