关于美的大3P空调压缩机电流变化的一个问求解

2025-02-15 21:22:58
推荐回答(2个)
回答1:

《家电维修》技术论坛's Archiver
» » [求助]一台3P美的空调十多分钟后压缩机过载保护故障,陷入困境
至尊无比帝王 发表于 2007-5-1 10:09
[求助]一台3P美的空调十多分钟后压缩机过载保护故障,陷入困境我修一台3P美的空调十多分钟后压缩机过载保护故障,陷入困境 刚开机十分钟内制冷正常压缩机电流14A,十分种后压缩机电流由14A不段上升到20A压缩机过载保护,实测回气压力正常和故障时都是0。4MP不变,此机是网吧用的内外机都清洗了,怀疑外风机散热不好。外风电机电容替换也不行,压缩机工作电压实测225V,怀疑压缩机,换新后故障一样。故障后外机壳都很烫,有时电流16A能保持一小时时间长也要保护,此机在此网吧按装8台其他都正常。
民记 发表于 2007-5-1 10:15
管道是不是堵了?(冰堵或脏堵);P ;P ;P ;P
意云制冷 发表于 2007-5-1 10:32
看看管路是不是有压扁的地方?///////
新手请帮忙 发表于 2007-5-1 11:54
看看外压缩机启动电容,代换一个看看。。。
湘林制冷 发表于 2007-5-1 13:07
是的压机起动电容代替一下,管道有扁的没,外风机电机怎样.
安全员 发表于 2007-5-1 15:21
电源是不是在其他8台机的尾端,换一下电源试试看.
陈小洲 发表于 2007-5-1 18:26
散热不良,用高压水枪清洗外机,风机电容再换一个试试
刘瑞瑞华 发表于 2007-5-1 20:36
应是压机电容坏。带换试一下。电压降有几伏。
扬长而去 发表于 2007-5-1 21:58
以前有维修记录吗?问一问,应该是系统出问题,毛细管结腊造成流量偏小.如果漏过几次总冷剂有可能是冷冻油少.
恒远 发表于 2007-5-1 22:01
我以前也遇见过这样的情况,最终也没修好,请各位再指点一下
诚信制冷 发表于 2007-5-3 11:21
是内机换热器背面脏堵....................
波记 发表于 2007-5-4 12:39
室外机风扇电容:lol :lol :lol :lol :lol
黎阳电器 发表于 2007-5-4 13:40
你检查的几个地方都是对的,可以做如下工作
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1,代换电源以确定电源有没有问题-gvNtp~D{\9f
2,可将弯折处保温管撕开,看铜管有没有压扁的地方
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3,可将氟放掉,重新抽空加氟
郝靖 发表于 2007-5-6 11:32
以前正常,现在出故障,且电流逐渐上升,很多情况是外机散热不良,建议B+o1b:D5Y
1用高压水枪清洗外机散热片
;a2n3wiw2^.g!s6C6_e
2检查风扇电容容量,如变小就换v2Z;N8T1q*zZYF
:victory:
锦绣冷气工程部 发表于 2007-5-7 23:10
堵堵塞与连接管压扁的可能性最大。。。。。。。。。。。。。。。。。。。
黄日科 发表于 2007-5-7 23:21
属于外机散热不良,是不是安的位置不通风?要不就是外风机转速不够(风机不好还是起动电容容量变小)?
高州邓刚 发表于 2007-5-7 23:23
主机在上吗.压缩机出气管扁吗,或有堵塞.....
我的心不乱 发表于 2007-5-8 18:41
典型的外机换热不良的故障 还是好好查一下外机的换热 再考虑其他的
严俊华 发表于 2007-5-8 18:52
哈哈!毛细管脏堵!我也遇过这种故障。想办法搞通它
榕榕 发表于 2007-5-8 21:03
刚开机十分钟内制冷正常,这样一来系统应该说没问题.属于外机散热不良,是不是安装的位置不通风?要不就是外风机转速不够(风机不好还是起动电容容量变小)?
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回答2:

很正常,制冷剂泄漏了三分之一,看似漏完了。电流下降不多。因为是开机加注,不能反映真实氟量。

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