What is this?
An electric oven that powers on (the light and display work) but does not heat up usually has a failed heating element, a faulty thermostat, or a broken fan motor (in fan ovens). The oven may have partial heat (one element works but another does not) or no heat at all. This is different from a complete power loss, which points to a circuit or wiring fault.
Common causes
- Oven heating element has burned out (visible as a break or blister in the element)
- Fan motor has failed in a fan oven, so heat is not circulating
- Thermostat has failed and is not calling for heat
- Selector switch is faulty and not routing power to the correct element
- Thermal cut-out has activated due to a previous overheating event
Is it dangerous?
An oven that does not heat is not immediately dangerous, but you should not attempt to disassemble it if it is hardwired. If the oven is making unusual noises, producing a burning smell (that is not food), or showing signs of electrical damage (scorch marks, sparks), turn it off at the cooker isolator and call an electrician.
Can I fix it myself?
Check that the oven is set to the correct function and temperature. Try the grill element separately to see if it works — this helps identify whether one specific element has failed. Check that the clock or timer is not set to automatic mode (a common gotcha that prevents the oven from heating). If you can access the element, visually inspect it for breaks or blistering.
When to call an electrician
Call an electrician if the oven is hardwired and needs element or component replacement, if the cooker connection unit or wiring is suspected, or if the oven trips the electrics when you try to use it. For plug-in ovens, an appliance repair engineer may be more appropriate for internal component replacement.
What will an electrician do?
Test the cooker circuit to confirm power is reaching the oven
Inspect the cooker connection unit and isolator for faults
Test individual elements, thermostat, and fan motor for continuity and earth faults
Replace the failed element or component
Test the oven and circuit after repair
Typical cost
£80 – £250
Element replacement including parts is typically £100–£180. Thermostat or fan motor replacement is similar. If the circuit or connection unit needs work, electrician rates apply.
