I received a call from a customer who reported that their air conditioner was not cooling. I arrived at the customer's home and performed a thorough inspection of the unit. I found that the condenser coil was dirty and clogged with debris, which was preventing the unit from cooling properly. I cleaned the coil and performed a system recharge to restore the unit's cooling capabilities. The customer was very satisfied with the service and expressed gratitude for the prompt and efficient repair.