Upon arrival unit was turned off. Turned both zones on and the indoor blower started. Went outside and found the compressor was running but the fan motor was not. Opened the electrical compartment and found an old mouse nest. Inspected all wiring and found no chewed up wires. Tested the capacitor and found it was still good indicating the fan motor is bad. After getting customer authorization we removed the old fan motor and installed a replacement universal motor. Turned system on to check polarity of the motor. Hooked up refrigerant gauges and found the system had no pressure in it. Notified the customer and gave them the option of filling the system with a replacement refrigerant to get the system running for the immediate future or removing the new fan motor. Customer wanted the fan motor removed. Removed old fan motor and left the outdoor unit off. Running the system with no refrigerant will cause long term damage to the compressor. Customer did not want the fan motor reinstalled.