Morphy Richards oven does not heat at all; the fan and light may operate, but no warmth is felt in any mode.

Safety first: Turn off the power supply at the mains before performing any internal checks.

Steps:

• Confirm symptom: Test the grill, fan oven, and conventional modes. If none of them heat, suspect a common power supply issue.
• Check safety thermostat: Locate the high-limit thermostat on the oven casing and test it for continuity. Replace it if it shows an open circuit.
• Test main elements: Measure the resistance of the main oven and grill elements. Replace any elements that are open-circuit.
• Inspect selector switch: On models with a control knob, check that the function selector switch is not burnt or mechanically broken.
• Control board: If power is not being sent to any element despite all components being in good condition, replace the electronic control board.