High-pitched whistling or whooshing noise from inside the cabinet.

Safety: Unplug before removing internal panels.

• Check for ice around fan: On no-frost models, remove the rear internal panel and inspect the evaporator fan for ice build-up. Defrost if necessary.
• Rearrange contents: Avoid blocking air vents with food packages. Leave space for air circulation.
• Normal operation: Gentle whooshing or gurgling is often normal. If the noise is very loud or accompanied by poor cooling, have a technician check the sealed system.