The transmitter is a key part of CINRAD/SA weather radar, which has complex circuits and works continuously in an environment of high voltage and strong electricity, so it is a component that has relatively high failure rate in the CINRAD/SA radar. Based on Guangzhou radar, in combination with the experiences of other stations, the typical failures of CINRAD/SA transmitter occurred in operation and the troubleshooting procedures are analyzed. The formation causes of the faults are summarized, and some solutions are proposed, which can be used as references for maintenance technicians.