Chemical or burning smell coming from the rear of the unit.

Safety: Immediately unplug the unit. Do not continue to operate a cabinet that smells like burning plastic or insulation.

• Inspect rear compartment: Remove the rear panel and look for discoloration, melted plastic, or burnt wiring.
• Check terminal block: Tighten any loose connections and replace any charred components.
• Fan motors: Smell near the condenser fan and compressor. Replace any motor that shows signs of overheating or seized bearings.
• Control board: If the PCB is burnt or components are cracked, replace the main control board.
• Professional evaluation: If the compressor itself smells burnt, contact a refrigeration technician; compressor replacement requires specialized tools.