What F3 Means
On the Novotronic generation of Miele built-in ovens — the H 350, H 373 and H 387 family — F3 is the roast probe short-circuited, and Miele’s documented remedy is simply to replace the probe. It affects the plug-in food probe only, not the oven’s ability to heat.
Common Causes of F3
- Roast probe internally short-circuited
- Probe lead crushed in the door or against the cavity
- Probe socket contaminated or damaged
🔧 One Safe Check You Can Try
Unplug the food probe from its socket and run an ordinary program. If everything else behaves normally, you have confirmed the problem is confined to the probe circuit, which keeps this from being an urgent call.
⚠ Why You Shouldn't Go Further Than That
- A probe and its socket fail in similar ways, and buying a replacement probe for a damaged socket leaves the money spent and the problem in place.
- The socket is mounted in the cavity wall, so replacing it means opening an oven that is decades into its service life and whose fixings do not always come apart easily.
- These ovens use a probe matched to their own control, not a generic kitchen thermometer probe.
Opening a panel to inspect or repair something yourself doesn't automatically cancel your manufacturer's warranty — but it can risk accidental damage, and some manufacturers do have specific service conditions. Check your product's warranty terms, or ask us, before deciding.
Technical Reference
- Code
- F3
- Appliance
- Miele oven
- Maker documentation
- Miele owner manuals and use & care guides
- Checked
- September 2026
Code meanings can change between control generations. Before acting on a code, match the full model number on your appliance's rating label against the manual for that model. We are an independent repair service, not affiliated with Miele & Cie. KG.