检查循环泵线路 80%
更换循环泵 15%
更换辅助加热单元 5%
https://qc.dianpusou.com/tag/%e5%8d%95%e7%bc%b8%e6%9f%b4%e6%b2%b9%e6%9c%ba%e6%9c%ba%e6%b2%b9%e5%8a%a0%e5%a4%9a%e4%ba%86%e6%9c%89%e4%bb%80%e4%b9%88%e5%bd%b1%e5%93%8d
检查循环泵线路 80%
更换循环泵 15%
更换辅助加热单元 5%
https://qc.dianpusou.com/tag/%e5%8d%95%e7%bc%b8%e6%9f%b4%e6%b2%b9%e6%9c%ba%e6%9c%ba%e6%b2%b9%e5%8a%a0%e5%a4%9a%e4%ba%86%e6%9c%89%e4%bb%80%e4%b9%88%e5%bd%b1%e5%93%8d