Voltage from the motherboard to the inverter board was measured at 7.8 volts. Per your youtube video, you expect 4-6 volts. Does 7.8 volts indicate a problem with the motherboard? Overall behavior is that lights/fans, water dispenser are all working. On applying power, there is a clicking for about 3-4 seconds, but the compressor doesn't come on. I've yet to remove the inverter board to test resistance between the compressor contacts.
Thank you.