Miele Dishwasher F01 — What It Means & How to Fix It
F01 is the dishwasher telling you its water-temperature sensor is short-circuited — the machine will stop heating so nothing comes out properly cleaned until it's sorted.
What this code means
The control board reads the NTC temperature sensor as shorted, which it can't tell apart from a sensor near boiling. Miele deactivates the heater (and in some models rinse-aid dosing) the moment F01 registers, so a program can finish with cold water and dull dishes. The fault is usually the sensor itself failing, damaged wiring to it, or a control-board circuit. There is no owner service step beyond a safe power-cycle reset — after that, it's sensor and wiring work behind the panels.
On Miele G-series dishwashers the NTC fault pair is written F01/F02 (with F22/F24 on some references); newer generations use the same sensor family with slightly different numbering, so match your model's own fault list before assuming a part.
Most likely causes
| Cause | How likely | DIY-fixable? |
|---|---|---|
| Water/heating NTC temperature sensor has failed short-circuited | Occasional | No — technician job |
| Damaged or loose wiring between sensor and control module | Less common | Limited — visual connector check |
| Transient fault that clears with a power-cycle reset | Less common | Yes — unplug, wait, restart |
What you can try yourself
- Switch the dishwasher off at the wall and unplug it, then wait about five minutes before plugging back in and starting a short program — this clears one-off glitches.
- If F01 reappears, don't dismantle anything: the sensor and its wiring sit behind the machine's panels and need a multimeter and manufacturer procedures.
- Make sure the door is fully closed and latched when you retest — some sensor readings only make sense with a sealed tub.
- If the code keeps returning, book a Miele-trained technician rather than guessing at parts.
- Note that the machine will not heat while F01 is active, so don't expect a proper wash until the fault is cleared.
When to call a technician
- The code returns immediately after a reset — that's a real fault, not a glitch.
- You smell burning or see any water near the electrical connections, unplug and stop.
- The program stops mid-cycle with F01 and won't restart.
Typical professional repair cost: About $150–350 once a technician is involved; the sensor itself is inexpensive, the diagnosis and labor are the cost.
Frequently asked questions
Can I just keep running the dishwasher with F01 showing?
You can, but the heater is off, so you'll get cool-water washes that don't clean well — and a sensor fault can mask a real overheating problem. Treat it as a book-a-technician code.
Will clearing F01 reset itself?
Sometimes a transient surge glitch clears with a five-minute unplugged reset. If the code comes back on the next run, the fault is real and needs a technician.
Sources checked
Error meanings can vary by model. This guide was checked against the documentation above; use the manual for the model number on your own appliance when it differs.
Related Miele codes
- Miele Dishwasher F02 F02 is F01's twin on the same sensor: the water-temperature sensor circuit reads open, so the heater stands down and a cycle can finish cold and unwashed.
- Miele Dishwasher F11 F11 means the wash cabinet isn't draining — usually a mis-seated non-return valve, a blocked drain pump or clogged filters, and Miele USA walks owners through fixing it.
- Miele Dishwasher F12 F12 means the dishwasher isn't taking in enough water, and Miele's own support page gives the three owner checks: faucet on, clean the inlet filter, straighten the hose.
- Miele Dishwasher F14 F14 means the dishwasher's circulation pump is blocked — Miele says a pump left unused for weeks or months can dry out and stick, and gives a hot-water soak as the first fix.
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