Video reference. The accompanying video is eSpares' "How to Replace a Fan Oven Element (Get Oven Heating)" from the eSpares YouTube channel. eSpares is a UK appliance parts supplier and their repair tutorials cover the correct components sold in the UK. The video demonstrates element removal, reconnection and refitting in clear steps that apply to most fan ovens on the UK market.
1. Confirm the element has failed
The typical symptom is an oven that heats slowly or barely at all on the fan setting, whilst the fan motor itself still runs normally. Sometimes only one heat function stops - fan heat works but the top grill does not, for example - because ovens have separate elements for different modes.
A multimeter set to resistance (ohms) across the two element terminals gives a definitive diagnosis. A working element shows somewhere between 20 and 80 ohms depending on its wattage. A reading of open circuit (infinite resistance or OL) means the element wire has burnt through and needs replacing. A shorted element reads near zero ohms and will blow the MCB rather than just stop heating.
2. Isolate at the mains
The cooker isolator is the double-pole switch, usually with a red neon indicator, mounted on the kitchen wall or unit beside the cooker. Switching this off disconnects both line and neutral to the cooker. Do not rely on just turning the oven dial to off - the internal switching is not sufficient for safe working.
Range cookers and built-in ovens are most commonly hard-wired via a cooker connection unit. If the oven is an older freestanding model with a 13A plug at the back, unplug it from the socket. Wait until the oven cavity is completely cool - typically 30 minutes after use - before proceeding. Confirm dead with a voltage tester at the oven's terminal block: nothing on both line and neutral.
3. Find and order the correct replacement element
Open the oven door and look along the inside of the door frame, usually the left or right edge, for the rating plate. This carries the make, model number, voltage (230V on UK mains) and power rating. Write down the model number exactly as shown.
Use the model number on a UK parts supplier's website. eSpares, Ransom Spares and 4ourhouse all let you search by model and show the matching element with a part number and wattage confirmation. Do not estimate by the physical shape of the element: the wattage must match the original, as a higher-wattage element will overheat the oven and may trip the MCB.
4. Access the element
The fan oven element is a circular loop mounted in the back wall of the oven cavity, surrounding the fan blade. To reach it, remove the back panel: undo the two or four Phillips-head screws, ease the panel forward - it usually has a hook or ledge at the top that releases once the screws are out - and set it aside.
The element is now visible. Its two terminals pass through holes in the rear wall of the oven body and connect to the wiring behind.
5. Disconnect and remove the old element
Take a clear, well-lit photograph of the connections before touching them. The element will have spade connectors (flat blade) or bullet connectors. Pull each one off the terminals steadily - they can be tight if they have baked on over years of use. If they will not pull free by hand, use insulated pliers and pull straight, not at an angle.
Once disconnected, undo the screws that fix the element to the oven back wall. The element will then come free through the cavity. If the terminals are reluctant to clear the holes in the oven wall, try rotating the element slightly as you pull.
6. Fit the new element
Offer the new element into the oven cavity. Thread its terminals through the same holes in the oven back wall. Align the element, fit the fixing screws and tighten evenly. Reconnect the spade or bullet connectors to the terminals, checking against your earlier photograph that each one goes to the correct terminal - swapping the connections usually does no harm on a simple resistive element, but getting it wrong on some ovens with separate heat zones can cause the wrong function to work.
Refit the back panel: engage the top hook or ledge first, then fit and tighten the screws. Check the panel sits flush without gaps around the edges.
7. Restore power and test
Switch the cooker isolator back on. Set the oven to fan-assisted heat at around 180°C and run it. For the first few minutes there will be a smell and possibly light smoke: this is the protective manufacturing coating on the new element burning off. Ventilate the kitchen and let it run through - it clears within five minutes.
After ten minutes the oven should reach the set temperature and the smell should be gone. If the MCB or RCD trips immediately on switching the cooker back on, switch off and recheck the terminal connections: a loose spade connector touching the oven body can cause an earth fault that trips the RCD.
When to call us
Element replacement is appliance repair and does not need an electrician to carry it out. If the cooker circuit itself is tripping, the isolator switch is not working, or you want the cooker circuit tested at the same time, Richard covers east Kent at the £10 per 10-minute rate for small local jobs in Sandwich and nearby.
Cooker or oven electrical fault in Sandwich?
If the cooker circuit is tripping out or you are not sure whether the problem is the appliance or the wiring, Richard can test the circuit and advise.
Contact Richard