F12
What code F12 means on a Miele dishwashers, what causes it, and which part to check first.
● SEVERITY: HIGH
Miele F12 means: general intake, F13 = Waterproof System activated, F14 = intake timeout. On Miele units with Waterproof System (WPS). The documented cause is: check the double-walled intake hose for swelling indicating a slow leak triggered the safety shutoff
What F12 means
general intake, F13 = Waterproof System activated, F14 = intake timeout. On Miele units with Waterproof System (WPS)
The display shows F12 and the machine stops until the fault is cleared.
What the technical documentation says
Causes documented in the technical source published by easybear-appliancerepair.com
| DOCUMENTED CAUSE OR CHECK |
|---|
| check the double-walled intake hose for swelling indicating a slow leak triggered the safety shutoff |
Replacement parts
Tools you'll need
Before you open anything
Unplug the machine and close the water tap before removing any panel. The heating element and the wash water can stay hot long after the cycle ends.
What to check, in order
From the quickest check to the one that needs a technician.
Find a specialist
TroubleAtlas Pro
TroubleAtlas Certified
What is the TroubleAtlas Score?
Beyond fault codes and specialists, we rate the reliability of appliance brands and models — a transparent score that owes nothing to the manufacturer. The reference to check before you buy or repair.
See all appliance scores →TA YouTube Channel
Frequently asked questions
What does F12 mean on a Miele?
general intake, F13 = Waterproof System activated, F14 = intake timeout. On Miele units with Waterproof System (WPS) The documented cause is: check the double-walled intake hose for swelling indicating a slow leak triggered the safety shutoff
Can I fix F12 myself?
It depends on the part involved: check the double-walled intake hose for swelling indicating a slow leak triggered the safety shutoff Clearing a filter or straightening a hose is within reach of anyone; anything behind a panel means mains electricity and water together — that is a job for a technician.
Does the same code mean the same thing on other brands?
Often not. The same two characters can point to completely different faults depending on the manufacturer — always check the page for your own brand.