Oven
F24
The F24 error code on a Neff oven indicates a fault with the oven’s temperature sensor (NTC sensor) or its associated wiring — it’s a moderately serious fault that will prevent the oven from heating correctly or at all.
What does this error mean?
F24 means your Neff oven’s control board has detected that the temperature sensor (also called an NTC or thermostat probe) is reading an implausible value — either too high, too low, or an open/short circuit. The oven cannot safely regulate heat without accurate temperature data, so it shuts down or refuses to start as a precaution. This is an electrical appliance fault, not a gas issue, so certain DIY steps are safe to attempt.
Est. repair cost
£15–£40 DIY (NTC sensor replacement); £80–£180 for professional repair including PCB diagnosis
🔍 Likely causes
🛠️ Step-by-step fix
Step 1 — Hard reset: Switch the oven off at the wall socket or trip the circuit breaker, wait 5 minutes, then power it back on. A one-off electrical glitch can trigger F24 and a reset clears it.
Step 2 — Check for error recurrence: Run the oven at 180°C for 10 minutes. If F24 returns immediately, the fault is persistent and you need to investigate further.
Step 3 — Inspect the sensor probe (safe to do): Once the oven is fully cold and unplugged, locate the NTC temperature sensor — it’s typically a thin metal probe mounted on the back wall inside the oven cavity, secured by one or two screws. Check for obvious damage: burns, cracks, or a wire that has snapped at the connector.
Step 4 — Check the wiring connector: Trace the sensor wire to where it connects to the oven’s back panel. Unplug the connector, inspect for corrosion or bent pins, and firmly reseat it. Plug the oven back in and test.
Step 5 — Replace the NTC sensor: If the sensor looks damaged or the fault persists, order a genuine Neff replacement NTC sensor for your model (check your model number on the oven door frame or inside the door). The sensor unplugs and unscrews — no electrical component opening required. Replacement sensors cost £15–£40.
Step 6 — Stop here if unsure: If replacing the sensor does not clear F24, the fault likely lies with the control board (PCB). Do not attempt to open or repair the PCB yourself — this requires a qualified appliance engineer.
📞 When to call a professional
Call a qualified appliance engineer if replacing the NTC sensor does not resolve the F24 error, as the control board (PCB) is likely at fault and requires professional diagnosis and replacement. Also call immediately if you see any burnt wiring, smell burning, or the oven trips your home’s electrics. When calling, tell the engineer: ‘My Neff oven is showing error code F24 — I’ve already replaced the NTC temperature sensor and the fault persists, so I suspect a PCB fault.’
⚖️ Repair or replace?
A professional repair for an F24 fault — most likely a sensor replacement or PCB swap — typically costs £80–£180 in the UK including parts and labour. If your Neff oven is under 8 years old, repair is almost always the better value choice given Neff ovens retail at £500–£1,200+. If the oven is over 10 years old and the PCB needs replacing (£100–£150 for the part alone), weigh up whether a new oven makes more financial sense.