Repair method: Replace the same power compressor, troubleshoot.
Gree inverter air conditioner, indoor unit works, outdoor unit does not work.
Analysis and Testing: The power supply voltage was tested to be good; after removing the outer shell of the outdoor unit, it was measured that the 2nd and 3rd pins of the three-terminal regulator 7805 on the control board had a +5V DC voltage output; it was measured that the starting capacitor C29 of the compressor had a charging and discharging process; the coil resistance of the compressor was measured. The main winding resistance plus the auxiliary winding resistance is not equal to the public end winding resistance, thus determining that there is an open circuit inside the compressor winding.
Source: Beijing Gree Air Conditioner Repair http://blog.tianya.cn/blogger/blog_main.asp?BlogID=3495407.