Cooker
F06
The F06 error code on a Smeg cooker indicates a fault with the oven door locking mechanism or its associated microswitch — most commonly triggered during or after a pyrolytic self-cleaning cycle. It’s a moderately serious fault that will prevent the oven from operating until resolved.
What does this error mean?
The F06 code tells you the oven’s control board cannot confirm whether the door is properly locked or unlocked. Smeg ovens — particularly pyrolytic models — use an electromechanical door lock to secure the door at high temperatures during self-clean cycles. When the lock motor or its position sensor sends an unexpected signal (or no signal at all), the oven throws F06 and shuts down as a safety precaution.
Est. repair cost
£80–£160 professional repair (door lock motor/microswitch); £20–£50 DIY part if you are comfortable with appliance electrics
🔍 Likely causes
🛠️ Step-by-step fix
Power cycle the oven: switch it off at the wall socket (or trip the circuit breaker), wait 5 minutes for the capacitors and control board to fully reset, then power back on. This clears a surprising number of transient F06 errors.
If the error appeared after a pyrolytic cycle, leave the oven completely alone for 30–45 minutes. The door lock will not release until the cavity drops below roughly 300°C — forcing it or cutting power mid-cycle can trigger F06.
Check the door for physical alignment: open and close it firmly, checking for any wobble, drooping, or resistance. A misaligned door prevents the lock bolt from seating correctly. Tighten any visible loose hinge screws on the door frame.
Inspect the door lock area (visible through the top front edge of the oven cavity when the door is open) for obvious debris, carbon buildup from the self-clean cycle, or a visibly broken plastic actuator. Clear any obstruction with a dry cloth — do not use water near electrical components.
If the fault persists after steps 1–4, the door lock motor or microswitch almost certainly needs replacement. This requires partial disassembly of the oven door or front panel — stop here and book a qualified engineer unless you are confident working with domestic appliance electrics and have disconnected the oven from the mains.
📞 When to call a professional
Call a qualified appliance engineer if the F06 code returns after a power cycle and the door shows no obvious physical problem — this points to a failed lock motor, microswitch, or PCB that requires disassembly and component testing. When you call, tell the engineer: ‘My Smeg oven is showing error F06, it appears to be a door lock fault, and the model number is [your model].’ Having the model number (found on the sticker inside the door frame) ready will help them bring the right parts.
⚖️ Repair or replace?
A door lock motor or microswitch replacement typically costs £80–£160 all-in with a UK appliance engineer, and is almost always worth doing on a Smeg oven under 8 years old given the brand’s build quality and the relatively modest part cost. If your oven is over 10 years old and the engineer suspects a PCB fault on top of the lock assembly, repair costs can climb to £200+, at which point replacing with a comparable model (£500–£900 for a new Smeg) becomes the more sensible long-term decision.