Arrived to mini split vibrating and making a loud noise. Our client had the system off and showed me the front cover that he had removed. A piece had broken off and he was worried that it had fallen into the blower wheel. I found the piece on top where the coil is and not in the wheel. I further inspected the blower wheel and found it to be very dirty with growth and debris collected on it. The vibrating noise is is consistent with that if just a dirty blower. I discussed with Tommy and his wife Dixie that the unit needs to have a deep cleaning preformed to eliminate the noise and ensure the unit keeps preforming properly. They agreed to have me service the unit and also join our maintenance plan. We are scheduled to return tomorrow to clean the mini split. The unit is currently off.