Oven emits a persistent electrical or burning plastic smell during use, even when clean.

Safety first: Turn off the oven and disconnect power immediately if you suspect electrical burning. Do not continue using the oven until inspected.

• Visual inspection: Remove rear and bottom panels to inspect wiring harnesses, connectors, and components for discoloration, melting, or charring.
• Check terminal block: Inspect the main power terminal block for burned lugs or melted plastic. Replace the terminal block and any damaged wiring.
• Inspect motors: Smell near the cooling fan and convection fan motors. If odor is strongest there and motors run hot or noisy, replace the affected fan motor.
• Remove foreign objects: Ensure no plastic, packaging, or utensils are touching elements or hot surfaces.

Electrical burning smells indicate a potential fire hazard; if you cannot locate the source, contact a professional technician.