Oven
F7
The F7 error code on a Candy oven indicates a fault with the oven’s temperature sensor (NTC probe) or its circuit — it’s a moderately serious fault that will prevent the oven from heating correctly, but it’s often fixable without a professional.
What does this error mean?
F7 signals that the oven’s control board has detected an abnormal reading from the NTC temperature sensor — the component that monitors the internal oven temperature. This could mean the sensor is sending a value that is too high, too low, or no signal at all. Without an accurate temperature reading, the oven’s safety logic shuts down the heating elements to prevent overheating or fire risk.
Est. repair cost
£15–£35 DIY NTC sensor replacement; £80–£130 professional sensor repair; £150–£250+ if the PCB requires replacement
🔍 Likely causes
🛠️ Step-by-step fix
Hard reset first: switch the oven off at the wall socket (or trip the circuit breaker), wait 5 minutes, then power back on. If F7 clears and does not return, a transient fault caused it — monitor for recurrence.
Locate the NTC sensor: it is typically a small metal probe mounted on the rear interior wall of the oven cavity, secured by one or two screws. Consult your Candy model’s user manual or the wiring diagram inside the back panel to confirm its position.
Inspect the sensor and wiring: with the oven fully unplugged and cooled, remove the sensor probe (usually a single Phillips screw). Check the probe for visible burn marks, corrosion, or physical damage. Follow the wiring back to its connector and check for loose, burnt, or corroded pins.
Test the NTC sensor with a multimeter: at room temperature (~20°C), a healthy Candy NTC sensor typically reads approximately 10,000–12,000 ohms (10–12 kΩ). An open-circuit (OL) or near-zero reading confirms a faulty sensor — replace it.
Replace the NTC sensor if faulty: order a compatible replacement using your oven’s full model number (found on the rating plate inside the door frame). Genuine and compatible Candy NTC sensors cost £15–£35 online. Fit the new probe, reconnect the wiring, and power on to check if F7 is resolved.
If the sensor tests fine but F7 persists, the control board (PCB) is likely at fault — this requires professional diagnosis as replacing a PCB without confirming the fault risks wasting £80–£150 on a part.
📞 When to call a professional
Call an appliance engineer if the NTC sensor tests healthy but the F7 code remains, as the control board will need specialist diagnosis. Also call a professional if you are not comfortable using a multimeter or working inside the oven’s rear cavity. When booking, tell the engineer: ‘My Candy oven is showing an F7 error code — I believe it relates to the NTC temperature sensor or PCB.’
⚖️ Repair or replace?
An NTC sensor replacement by a professional typically costs £80–£130 all-in (parts and labour) — well worth it if your oven is under 8 years old. A PCB replacement runs £150–£250+, at which point replacement becomes competitive, especially since a mid-range Candy electric oven costs £300–£500 new. For ovens over 8–10 years old showing a PCB fault, replacing the appliance is usually better value.