2 head mini split Mitsubishi hyperheat has a electrically burned out shorted to ground inverter compressor. Normal continuity between all three terminals but short to ground on all three terminals Outdoor unit module locks out during power up self test on LED one red two blinks indicating high current draw, after a short period of time the system lockout changed to LED one continuous lit and led #2 yellow two blinks indicating abnormality in the compressor, IPM or PFC Ultraviolet die in the refrigerant oil has been detected at the high pressure switch which was abandoned several years ago when the electrical side of the switch failed. If any compressor repairs are performed the old high pressure switch needs to be removed Recommend replacing system