Cabinet temperature is much warmer than setpoint even though the compressor and fans run; condenser is extremely hot.

Safety: Unplug the unit and allow hot components to cool before cleaning.

• Improve ventilation: Ensure the cooler has the minimum clearances specified by Aobosi at the sides, back, and top. Do not enclose it tightly in cabinetry without proper airflow.
• Clean condenser: Remove the rear panel and vacuum dust from the condenser coil. Use a soft brush to loosen stubborn dirt.
• Check condenser fan: Verify that the fan spins freely and runs whenever the compressor is on. Replace the fan motor if it is slow, noisy, or not running.
• Re-test cooling: After cleaning and ensuring good airflow, monitor cabinet temperature over several hours.