Freezer emits a burning smell or plastic smell during operation.

Safety first: If you smell burning plastic or see smoke, unplug the freezer immediately and do not use it until inspected.

Steps:

• Visual inspection: With power disconnected, remove rear and interior panels as needed to look for discoloured plastic, burnt connectors, or melted insulation.
• Clean dust: Vacuum dust from condenser coils and around the compressor and defrost heater.
• Check connectors: Tighten or replace any overheated or burnt connectors, especially at the mains input, compressor, and heater.
• Professional evaluation: If you cannot locate the source or suspect compressor or wiring damage, contact a qualified technician before using the appliance again.