Switching IC Blown Again | How We Diagnosed and Fixed the AC Issue! 

In this video, we tackle the issue of a blown switching IC and bad resistors on the PCB of Sharp and Gree air conditioners. We diagnose the problem step-by-step using a multimeter in diode mode to check the resistors and diodes, including the short-circuited D126 diode. Learn how high voltage and faulty capacitors can cause voltage fluctuations that damage your PCB. Watch as we replace critical components like resistors, capacitors, and diodes to restore power to the indoor and outdoor units. Whether you have a Sharp or Gree AC, this video will help you troubleshoot and fix common PCB issues.
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