Upon arrival indoor was blowing Heatpump was not functional. During evaluation found board to be throwing low pressure cutoff code. Attached gauges and system was completely flat. Added some refrigerant to system to perform a leak search. Upon adding refrigerant the condenser coil began to hiss indicating a big leak in the condenser coil. Located leak on corner where dog has been urinating. Dog urine is acidic and ate through the aluminum coil causing leak. No longer under warranty due to that fact. Customer firmly stated he's getting a second opinion for the condenser coil that is leaking due to customers dog urinating on system.