Oven
F14
The F14 error code on a Bosch oven indicates a fault with the oven’s temperature sensor circuit — specifically, an open circuit or broken connection in the core temperature probe. It’s a moderately serious fault that will prevent your oven from heating correctly, but in many cases it’s a straightforward fix.
What does this error mean?
The F14 code tells you the oven’s electronic control board has detected an open circuit in the meat probe or internal temperature sensor — meaning the signal from the sensor is absent or interrupted. The oven cannot regulate heat without a reliable temperature reading, so it will lock out the heating function as a safety measure. On most Bosch built-in ovens, the F14 relates specifically to the meat probe (core temperature probe) socket or the probe itself, rather than the main oven thermostat sensor.
Est. repair cost
£20–£45 DIY (replacement meat probe); £120–£220 professional repair (wiring or PCB fault)
🔍 Likely causes
🛠️ Step-by-step fix
Reset the oven first: switch it off at the wall socket (or trip the circuit breaker), wait 5 minutes, then power back on. Check if F14 clears — a transient software glitch will be resolved at this step.
Check the meat probe socket: open the oven door and look for the probe socket on the interior oven wall (usually on the left side). If your meat probe is plugged in, remove it fully, inspect the probe and socket pins for damage or debris, then firmly reinsert it. If no probe is used, ensure the socket is empty and undamaged.
If you own a Bosch meat probe, test it in a different compatible oven if possible, or inspect the probe tip and cable for visible kinks, burns, or breaks. A damaged probe must be replaced — search for your oven’s model number (on the oven door frame sticker) and order a genuine Bosch replacement probe (typically £20–£45).
Clean the probe socket carefully with a dry cotton bud to remove grease or residue from the pin contacts. Do not use water or liquid cleaners inside the socket.
If F14 persists with no probe inserted and the socket looks undamaged, the fault lies in the wiring harness or control board — do not attempt to open the oven’s back panel or access internal wiring yourself. This requires a qualified appliance engineer.
Check your oven is still under warranty: Bosch UK ovens carry a 2-year manufacturer’s warranty (sometimes extended). Register at bosch-home.com or call 0344 892 8979 — a covered repair costs you nothing.
📞 When to call a professional
If the F14 error returns after a reset and the probe/socket checks out fine, call a qualified appliance engineer — the internal wiring harness or PCB will need professional diagnosis. When booking, tell the engineer: ‘My Bosch oven is showing an F14 error code, which I understand relates to the core temperature probe circuit.’ This helps them bring the right parts and saves call-out time.
⚖️ Repair or replace?
A probe replacement is a cheap DIY fix at £20–£45 for the part. If the fault is a wiring harness or PCB, expect a professional repair bill of £120–£220 including labour and parts. For ovens over 8–10 years old where the PCB has failed, replacement often makes more financial sense — a comparable Bosch built-in oven starts at around £400–£600. For newer ovens, always repair first.