Upon inspection of the GE Monogram under-counter wine storage unit, it was determined that the cooling performance was suboptimal. A thorough examination of the condenser coil revealed it was covered in dust and debris, which can impede cooling efficiency. I meticulously cleaned the condenser coil using a vacuum and brush to remove all accumulated dirt and grime. Additionally, I inspected the door seals for any signs of wear or gaps that could allow warm air to enter, ensuring they were intact and sealing properly. The overall health of the unit was assessed, and necessary adjustments were made to restore optimal cooling performance. The wine storage unit is now functioning as intended, maintaining the ideal temperature for wine preservation.