I was called to a home in the city to repair a leaking AC unit. The condenser coil was heavily corroded and could not be repaired. The furnace was 30 years old and had water damage. The furnace and condenser had to be replaced. I was unable to reach the customer's service department, so I called the company and spoke with a representative who approved a return trip to do a leak search. The service call approval number is NNA382.