Unit is very warm on the sides or top, more than expected.

Safety: Some warmth on the cabinet surfaces is normal; extreme heat is not.

Steps:

• Check installation: Ensure the cooler has the recommended clearances and is not installed flush against walls or inside a tight cabinet without ventilation.
• Reduce load: Avoid overpacking the cooler, which can cause the system to run longer and heat the cabinet more.
• Monitor temperature: Use an infrared thermometer to check cabinet surface temperatures. If surfaces are too hot to touch comfortably, unplug and have the unit inspected.

Note: Many Whynter models route condenser lines through the cabinet walls; mild warmth is part of normal operation.