Cooker
F04
The F04 error code on a Beko cooker indicates a fault with the oven temperature sensor (NTC sensor), meaning the appliance cannot accurately read or regulate the oven cavity temperature. It’s a moderately serious fault — the oven will typically stop heating or refuse to start until it’s resolved.
What does this error mean?
F04 tells you the oven’s internal temperature sensor (also called an NTC or thermostat probe) has either failed, is reading an out-of-range value, or has developed a wiring fault. The cooker’s control board monitors this sensor continuously; when the signal falls outside expected parameters, it throws the F04 code and disables the oven as a safety measure. This is an electrical fault on the oven cavity — it does not affect hob burners or rings.
Est. repair cost
£15–£35 DIY (NTC sensor replacement); £80–£160 professional repair (sensor or PCB fault)
🔍 Likely causes
🛠️ Step-by-step fix
Power off and reset: Switch the cooker off at the wall socket (or isolate at the fuse board), wait 5 minutes, then power back on. A transient fault can occasionally clear itself.
Check the error persists: Run a short oven cycle at 180°C. If F04 returns within a few minutes, the fault is genuine and you’ll need to investigate further.
Locate and inspect the NTC sensor: The sensor is a small metal probe mounted on the back interior wall of the oven cavity, usually held by one or two screws. With the oven cold and unplugged, remove it and check for visible burn marks, corrosion, or a broken probe tip.
Clean the sensor tip: If the probe looks intact, wipe it gently with a dry cloth to remove any grease or carbon build-up, refit it firmly, and test again.
Test or replace the NTC sensor: A replacement Beko NTC oven sensor costs £15–£35 from UK appliance parts suppliers (search your model number on sites like eSpares or 4ourhouse). Replacing it requires only a screwdriver and unplugging the connector — no specialist skills needed.
Check the sensor wiring: With the cooker unplugged, trace the sensor cable to its connector and press it firmly home. If the cable is visibly damaged or melted, do not attempt to repair it yourself — call a qualified appliance engineer.
📞 When to call a professional
If replacing the NTC sensor does not clear the F04 code, the fault likely lies with the oven control board (PCB) or internal wiring — both of which require a qualified appliance engineer to diagnose and replace safely. Call a professional and tell them: ‘My Beko oven is showing an F04 error code, I’ve already replaced the NTC temperature sensor and the fault persists.’ This helps the engineer arrive prepared with the right parts.
⚖️ Repair or replace?
A professional repair for an F04 fault — covering sensor replacement or a PCB swap — typically costs £80–£160 including labour and parts. If your Beko cooker is under 7 years old and the repair quote is below half the cost of a new equivalent model (budget £350–£600 for a comparable freestanding electric cooker), repair is the sensible choice. If the cooker is over 8–10 years old and the PCB needs replacing, weigh the repair cost carefully against a new model with a fresh warranty.