Electric oven does not heat at all; fan runs and light works but no warmth.

Safety first: Isolate the cooker from the mains before removing any panels or elements.

Steps to check:

• Confirm function: Try different oven functions (fan oven, conventional, grill). Note which ones heat and which do not.
• Visual inspection: Look at the fan oven element (usually a circular element around the fan) for breaks, blisters, or burn marks.
• Access rear terminals: Remove the rear panel to access the element terminals. Check for burnt or loose connectors.
• Test element: Disconnect the element and measure resistance with a multimeter. An open circuit indicates a failed element that must be replaced.
• Replace element: Remove mounting screws from inside the oven, carefully pull the element forward, transfer wires, and refit. Ensure all terminals are tight.
• If elements test OK: The oven selector switch or control PCB may be faulty and require further diagnosis.