A Miele dishwasher showing F12 has stopped at the start of the programme because it cannot confirm the water going in. Often the tap indicator light flashes with it. Book online at /book/ or call (07) 3062 2377.

What F12 means on a Miele dishwasher

F12 is a water intake fault. The machine measures the water entering it and halts when the reading does not match what the cycle expects. It usually appears right at the beginning of a programme, sometimes with a warning buzzer.

What we find on Brisbane Miele F12 jobs

Across the 53 Miele F12 jobs our technicians attended in Brisbane in the 12 months to September 2026, the flowmeter is named on 26 job records — about half, and more than every other part combined. The control board appears on six, a filter problem on five, and the inlet valve and waterproof system on four each. Our technicians put the machine into service mode and read the stored fault before replacing anything; on several jobs F12 was the only code logged.

What you can safely check first

Check the tap is fully open — this is the first thing worth ruling out, and the flashing tap indicator is pointing at it.
Check the inlet hose is not kinked behind the machine.
Check the inlet filter where the hose meets the tap for grit or scale.
Do not attempt to replace the flowmeter yourself. It sits inside the machine’s water path and needs the diagnostic unit to confirm before and after.

What the repair involves

A technician confirms F12 on Miele’s diagnostic unit, checks supply pressure and the inlet path, then tests the flowmeter. Where it has failed, the part is replaced and the machine is retested on the diagnostic unit before handover.

Pricing

Our callout fee is $219, which includes the first 30 minutes of on-site labour and a full diagnosis. Parts are quoted separately before further work. Seniors, pensioners and students receive a $20 discount. Return visits are $29 plus parts and labour. All prices are estimates only.

If your machine is still inside the manufacturer’s warranty period, contact Miele Australia first to confirm how your repair should be handled.

Frequently asked questions

Why does F12 appear intermittently?

A failing flowmeter often works some of the time before it stops entirely, so the fault can come and go for weeks before it becomes permanent. Intermittent F12 is still worth diagnosing.

Is it the same as the tap light flashing?

They usually appear together. The tap indicator is the machine’s way of pointing at the water supply; F12 is the stored fault behind it.

Not clearing after these steps? A technician can diagnose it on the first visit — see Dishwasher Repairs Brisbane or book online.

Miele F12 Error Code — Water Intake Fault