首先检查市电供电电源,拔下空调电源插头,万用表交流电压挡测电源插座电压为223V,正常。打开机壳,检查空调控制电路板,发现有两只二极管VD1、VD10已击穿损坏,用同型号二极管更换后,机器恢复正常工作。 |
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