Test the machine no-load and load voltage is normal, so doubt compressor to run coil and capacitance is damaged, and the compressor to run coil and capacitance measurement is normal. Because the machine has been used for more than two years, thus the basic can be identified as the compressor block. U F capacitor to replace the original machine with a 50 + 25 mu F capacitance, boot after the compressor working properly, when it work to turn it off after 1 minute, then the original mechanical and electrical container boot, compressor normal operation and troubleshooting.H8Qservice manual download site