Started heat pump in cooling mode condensor fan motor did not turn and system immediately went into high pressure shut down system tested and inspected electrical components and control found rodents nest in defrost board and capacitor removed nedt tested board which was good tested capacitor found capacitor was weak on compressor side and failed on fan side replaced capacitor at this point fan motor had cooled off cycled unit in cooling checked temp drop and charge with blanket added due to outdoor temp tested in heat pump heating checked heat rise all operations are normal at this time.