管焊接处有气泡,需要更换四通阀,如果在e、s、c或d管扩口处有气泡产生,可通过补焊解决；四通阀换向不
guan han jie chu you qi pao , xu yao geng huan si tong fa , ru guo zai e s c huo d guan kuo kou chu you qi pao chan sheng , ke tong guo bu han jie jue si tong fa huan xiang bu
般的阀体表面有很多油脂,在阀体表面涂上肥皂水,如果有气泡产生,说明泄漏冷媒,如果在阀体、毛细管或毛细
ban de fa ti biao mian you hen duo you zhi , zai fa ti biao mian tu shang fei zao shui , ru guo you qi pao chan sheng , shuo ming xie lou leng mei , ru guo zai fa ti mao xi guan huo mao xi
解决；9)系统有慢漏，冷媒较少，不能建立换向需要的压力差；２、四通阀阀体、毛细管或焊点有泄漏冷媒的一
jie jue 9) xi tong you man lou leng mei jiao shao bu neng jian li huan xiang xu yao de ya li cha si tong fa fa ti mao xi guan huo han dian you xie lou leng mei de yi
就处在阀体中间，通电时两端压差无法建立起来，导致不能换向；这种故障有一部分通过敲击阀体和加充冷媒可以
jiu chu zai fa ti zhong jian tong dian shi liang duan ya cha wu fa jian li qi lai dao zhi bu neng huan xiang zhe zhong gu zhang you yi bu fen tong guo qiao ji fa ti he jia chong leng mei ke yi
主滑块破碎，导致主滑块不能换向；７)先导阀内腔脏堵，导致先导阀不能工作；８)因系统原因，开机时主滑块
zhu hua kuai po sui dao zhi zhu hua kuai bu neng huan xiang ) xian dao fa nei qiang zang du dao zhi xian dao fa bu neng gong zuo ) yin xi tong yuan yin kai ji shi zhu hua kuai
阀座焊接时轻微烧坏泄漏量超标，造成串气，使滑阀两端压力平衡，无法推动滑阀换向；６)系统压力带来四通阀
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盖损坏变形，无法换向；特别注意使用大金和三洋涡旋压缩机时产生液击的比例较大；5)四通阀内部间隙过大，
gai sun huai bian xing wu fa huan xiang te bie zhu yi shi yong da jin he san yang wo xuan ya suo ji shi chan sheng ye ji de bi li jiao da 5) si tong fa nei bu jian xi guo da
体受外力冲击损坏（阀体凹）造我是单词王成滑阀不能换向，从外观可判断；4）由于系统内部的液击使阀滑导向架断裂、端
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系统内部的赃物（氧化皮、杂物、劣化油脂）等卡住或粘住，一部分可用木棒或胶棒轻击四通阀阀体解决；3）阀
xi tong nei bu de zang wu yang hua pi za wu lie hua you zhi deng ka zhu huo zhan zhu yi bu fen ke yong mu bang huo jiao bang qing ji si tong fa fa ti jie jue 3 fa
是四通阀不能正常换向的故障，主要原因有以下几点：1）电磁线圈损坏我是单词王，先导阀不起作用；2)四通阀内阀滑被
shi si tong fa bu neng zheng chang huan xiang de gu zhang zhu yao yuan yin you yi xia ji dian 1 dian ci xian quan sun huai wo shi dan ci wang xian dao fa bu qi zuo yong 2) si tong fa nei fa hua bei
.四通阀常见故障判断与分析方法1、空调不能正确和正常地从制冷转换成制热或从制热转换成制冷，这种情况就
. si tong fa chang jian gu zhang pan duan yu fen xi fang fa 1 kong diao bu neng zheng que he zheng chang di cong zhi leng zhuan huan cheng zhi re huo cong zhi re zhuan huan cheng zhi leng zhe zhong qing kuang jiu
通，于是形成制热循环，制冷剂流向如图所示。3.四通阀主阀体内部构造图片4.四通阀先导阀内部构造图片二
tong yu shi xing cheng zhi re xun huan zhi leng ji liu xiang ru tu suo shi 3. si tong fa zhu fa ti nei bu gou zao tu pian 4. si tong fa xian dao fa nei bu gou zao tu pian er
管相通，受压缩机抽吸而排出；我是单词王使活塞两端产生压力差，活塞及主滑阀⑤右移，使c、s接管相通，d、e接管相
guan xiang tong shou ya suo ji chou xi er pai chu wo shi dan ci wang shi huo sai liang duan chan sheng ya li cha huo sai ji zhu hua fa you yi shi c s jie guan xiang tong d e jie guan xiang
克服压缩弹簧②的弹力而右移，高压流体进入毛细管③后进入左活塞腔⑥。另一方面，右活塞腔④的流体由于和s
ke fu ya suo dan huang de dan li er you yi gao ya liu ti jin ru mao xi guan hou jin ru zuo huo sai qiang ling yi fang mian you huo sai qiang de liu ti you yu he s
制热循环（线圈通电状态）当电磁线圈处于通电状态（即制热状态），先导滑阀①我是单词王在电磁线圈产生的磁力作用下，
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差，活塞及主滑阀⑤左移，使e、s接管相通，d、c接管相通，于是形成制冷循环，制冷剂流向如图所示。2.
cha huo sai ji zhu hua fa zuo yi shi e s jie guan xiang tong d c jie guan xiang tong yu shi xing cheng zhi leng xun huan zhi leng ji liu xiang ru tu suo shi 2.
③后进入右活塞腔④。另一方面，左活塞腔⑥的流体由于和s管相我是单词王通，受压缩机抽吸而排出；使活塞两端产生压力
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断电状态)当电磁线圈处于断电状态（即制冷状态），先导滑阀①在压缩弹簧②驱动下左移，高压流体进入毛细管
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定市场四通阀的维修指引。此维修指引主要从以下我是单词王几个方面进行说明。一、四通阀工作原理1. 制冷循环(线圈
ding shi chang si tong fa de wei xiu zhi yin ci wei xiu zhi yin zhu yao cong yi xia wo shi dan ci wang ji ge fang mian jin hang shuo ming yi si tong fa gong zuo yuan li 1. zhi leng xun huan ( xian quan
四通阀维修指引为了使售后服务维修网点正确掌握空调用四通阀故障的分析与判定方法,并能正确进行维修，特制
si tong fa wei xiu zhi yin wei le shi shou hou fu wu wei xiu wang dian zheng que zhang wo kong diao yong si tong fa gu zhang de fen xi yu pan ding fang fa , bing neng zheng que jin hang wei xiu te zhi