Cooker
F05
The F05 error code on a Stoves electric cooker or range indicates a fault with the oven temperature sensor (NTC probe), meaning the oven cannot accurately read or regulate its internal temperature. It’s a moderately serious fault — the oven will typically stop heating entirely until the issue is resolved.
What does this error mean?
The F05 code tells you the oven’s temperature sensor (also called an NTC or thermocouple probe) has sent a reading outside the acceptable range — either it’s reading impossibly high, impossibly low, or has lost connection entirely. On Stoves electric ovens, this sensor is a small probe mounted inside the oven cavity, usually on the back wall or top corner. Without a working sensor, the control board cannot safely manage heating, so it shuts the oven down as a precaution.
Est. repair cost
£15–£40 DIY sensor replacement; £80–£150 professional sensor repair; £150–£280 if control board replacement is needed
🔍 Likely causes
🛠️ Step-by-step fix
Step 1 — Reset the cooker: Switch the cooker off at the wall socket or isolate it at the fuse box. Wait 5 minutes, then power it back on. This clears any temporary or false F05 triggered by a power fluctuation. If the error doesn’t return, monitor for recurrence.
Step 2 — Check the sensor probe visually: Open the oven and look at the temperature sensor probe (a thin metal rod, usually on the back wall). Check for obvious damage — cracks, scorch marks, or a visibly broken probe. Do not remove or touch internal wiring at this stage.
Step 3 — Check the sensor connector (only if comfortable): If the sensor probe has a visible plug-in connector accessible just inside the oven cavity without dismantling panels, gently check it is seated firmly. Unplug and re-plug if it looks loose. Do not go behind panels or access the wiring loom.
Step 4 — Test the sensor resistance (DIY-friendly if you own a multimeter): A working Stoves NTC sensor typically reads around 1,000 ohms (1kΩ) at room temperature. Disconnect the sensor plug and test across the two terminals. A reading of 0 (short) or OL/infinite (open circuit) confirms a failed sensor.
Step 5 — Replace the NTC temperature sensor: Replacement Stoves-compatible NTC sensors cost £15–£40 online (search your model number on eSpares or 4ourhouse). The sensor is usually held by one or two screws inside the cavity. This is a straightforward DIY repair on most Stoves electric oven models — isolate the power fully before starting.
Step 6 — If the error persists after sensor replacement: The fault likely lies with the wiring loom or the main control board (PCB). Stop here and call a professional — PCB diagnosis and replacement is not a safe or cost-effective DIY task.
📞 When to call a professional
Call a qualified appliance engineer if replacing the NTC sensor does not clear the F05 code, or if you see burned or melted wiring inside the oven cavity. Tell the engineer: ‘My Stoves electric oven is showing an F05 error — I’ve already replaced the NTC temperature sensor and reset the appliance, but the fault persists.’ This will save diagnostic time. If your cooker is a Stoves dual-fuel model with a gas hob, always ensure any engineer who works on the gas components is Gas Safe registered.
⚖️ Repair or replace?
An NTC sensor replacement by a professional typically costs £80–£140 all-in (parts and labour). A control board replacement, if needed, can push costs to £150–£280. If your Stoves cooker is under 8 years old and the repair is sensor-only, repairing is clearly worth it. If it’s over 10 years old and needs a new PCB, replacement with a new cooker (from around £400 for a comparable Stoves model) is likely the better value decision.