检修:拆机检查,保险管炸裂,IGBT烧坏短路,更换后放锅试机显示E8不加热,显示E8故障代码是无锅或锅具不符保护.测量C5(0.27UF/1200V)、C2(5UF/275V)、R4(470K)、R5(470K)、R10(470K)、R11(470K)均正常,测Z2(20V稳压管)短路,更换Z2后试机工作正常。 |
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