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海尔空调KFRd-120EW/H6301 E5故障代码

海尔定频柜维修故障码KFRD-52LW/JXF、KFRD-62LW/F、KFRD-62LW/JXF、KFRD-71LW/F、KFRD-71LW/SDF、KFRD-71LW/JXF、KFRD-120LW/F故障码故障原因E1室温传感器故障E2室内线圈传感器故障E3室外回路温度传感器故障E4室外线圈传感器故障E5过流保护E6管道压力保护E7室外欠压保护E8面板与主板通讯故障E9