Miele Dishwasher F01 Error Code: Causes & Fix

What is the Miele Dishwasher F01 error?#

F01 on a Miele dishwasher means the wash-water temperature sensor — the NTC — has shorted, so the board can no longer trust its heat reading and halts the cycle to protect the heater and your dishes. It is not an emergency, but the machine will not heat correctly until it is repaired. The first thing I have owners try is a full power-down at the wall for a few minutes, because a one-off electrical glitch can latch this code even when the sensor is fine.

F01 on a Miele Dishwasher: likely causes and repair cost#

On a Miele Dishwasher, the F01 code signals: temperature sensor short circuit.

Typical professional repair: $250–$450 · Difficulty: hard · usually a technician job

Symptoms that often accompany F01: Cycle stops mid-wash; No heating during wash; Error appears immediately at cycle start

Technician diagnostic sequence for F01:

1. Power off and unplug the dishwasher
2. Access the NTC temperature sensor (behind inner door panel)
3. Measure sensor resistance with multimeter (should be ~5k ohms at room temp)
4. Check wiring harness for moisture or corrosion
5. Replace NTC sensor if reading near 0 ohms (shorted)

Parts a technician may check or replace: Miele NTC temperature sensor; if corroded

Field note: A shorted NTC reads near 0 ohms. On Miele units with WiFiConn@ct, check the diagnostic log via the Miele@home app for exact sensor readings before disassembly.

Safety note: Miele dishwashers use proprietary NTC sensors. Generic replacements may have incorrect resistance curves causing poor wash performance.

How to troubleshoot the F01 error yourself#

Start with the safe, no-tool checks before assuming the worst. First, switch the dishwasher off at the wall or breaker for a couple of minutes and restart a short program — a genuinely shorted sensor brings F01 straight back, while a transient fault often will not. Second, if the code returns and you are comfortable pulling the machine out, look at the sensor connector for the tell-tale causes in the table above: green or white crust means connector corrosion, and a damp, water-stained harness points to water ingress on the sensor. Reseat a loose plug and let a corroded one dry fully. Where I tell people to stop is at any reading or continuity testing: confirming a shorted NTC versus board-side ADC drift needs a multimeter and the resistance target, and a shorted sensor reads near zero. If the code survives a reset, treat it as a technician job — this one is rated hard for a reason.

Is the Miele Dishwasher F01 error worth fixing?#

Almost always worth fixing. A professional repair here runs $250–$450, and the common outcome is a sensor swap, which sits at the low end of that band and nowhere near half the price of a comparable new Miele. Miele builds these machines on a long service-life philosophy, so spending a few hundred dollars to restore correct heating and sanitising on an otherwise sound unit is easy math. I only steer owners toward replacement when F01 arrives alongside other unrelated failures on a very old machine — then the combined bill can push past the sensible line. For a single shorted temperature sensor, repair wins comfortably.

Miele Dishwasher F01: frequently asked questions#

What does the F01 error mean on a Miele dishwasher?#

It means the wash-water temperature sensor (NTC) has shorted, so the control board reads an invalid temperature and stops heating. The board triggers F01 to avoid running the heater blind.

Is it safe to keep using a Miele dishwasher showing F01?#

You can run cold-only cycles, but dishes will not be properly heated or sanitised. I would not rely on it for baby bottles or cutting boards until the sensor is replaced.

Can I clear F01 myself or do I need a technician?#

Try one full power-down first — a transient glitch can clear. If F01 returns, it is a genuine short and needs a technician, since confirming it requires resistance testing at the sensor.

How much does it cost to repair F01 on a Miele dishwasher?#

Professional repair typically runs $250–$450. A straightforward NTC sensor replacement lands at the lower end; the higher figures apply only if wiring or the board circuit is involved.

Which parts usually fail when a dishwasher throws F01?#

Most often the NTC temperature sensor itself has shorted. Less commonly it is a corroded connector or water-damaged wiring feeding that sensor.

Why does a shorted NTC sensor trigger F01?#

A shorted sensor collapses to near-zero resistance, which the board reads as an impossible temperature. Rather than risk uncontrolled heating, it stops the cycle and posts F01.