Logik oven display shows E03 and the oven does not heat or shuts off shortly after starting.

Safety first: Isolate the oven from mains power before removing any panels. Metal edges can be sharp; wear cut-resistant gloves.

• Check for fan operation: Turn the oven on (before isolating) and listen for the cooling fan (not the convection fan) at the top or rear of the oven. If it does not run when the oven heats, suspect the cooling fan circuit.
• Inspect vents: After isolating power, check the front and rear ventilation slots for dust, grease, or obstructions. Clean with a soft brush and vacuum.
• Access cooling fan: Remove the oven from the cabinet if necessary. Take off the top or rear cover to expose the cooling fan assembly.
• Test fan motor: Spin the fan blades by hand; they should move freely. Check the motor windings with a multimeter for continuity. If open-circuit or seized, replace the cooling fan motor assembly.
• Check overheat thermostat: Locate the safety thermostat (usually clipped to the top of the oven cavity or rear). Test for continuity at room temperature. If open, it may have tripped or failed. Some are manual-reset (small button in the center); press to reset if present. If it will not reset or remains open, replace it.
• Inspect wiring: Look for burnt connectors or discolored wires around the fan and thermostat. Repair or replace any damaged wiring.