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Error Code

Miele Dishwasher F18 Code Defective Water Intake Valve

Plain-language guidance for Miele code F18 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 F18
Appliance Dishwasher
Quick answer

F18 on a Miele dishwasher is a defective water intake valve. Switch off, close the stopcock and call Miele Customer Service.

Model compatibility

Miele reuses codes across series and model years, so F18 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

Defective water intake valve; technical fault.

F18 overview

The display reads F18: the water intake valve is defective.

At a glance

Code F18
What it means Defective water intake valve; technical fault.
What you can check Switch the dishwasher off and shut the stopcock. There is no other owner step for this code.
When to call a technician The valve cannot be remedied by an owner, so arrange a service visit and keep the stopcock closed until the technician has looked at it.
  • Cannot be remedied by the owner
  • Switch off, shut the stopcock, then contact Miele Customer Service
  • A repair appointment can be booked online

Related

  • F15: inlet blocked or restricted
  • F179: electronic module 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.

Source: Miele support, Dishwasher Fault F18; Miele Operating instructions Dishwasher (en-SG, M.-Nr. 11 836 740) – Problem solving guide

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.