這(zhe)時(shi)的(de)問題(ti)便顯現(xian)(xian)(xian)出來(lai)了(le)，大(da)理家用(yong)中央空(kong)調(diao)，焦(jiao)點(dian)(dian)是(shi)制冷劑加至正常(chang)壓(ya)力時(shi)，電(dian)(dian)(dian)流(liu)偏(pian)(pian)大(da)，家用(yong)中央空(kong)調(diao)尺寸(cun)，從(cong)正常(chang)的(de)4.5A上(shang)升至7.5安，這(zhe)么大(da)的(de)偏(pian)(pian)差電(dian)(dian)(dian)流(liu)肯定會讓壓(ya)縮(suo)(suo)機(ji)過(guo)(guo)(guo)流(liu)保(bao)護(hu)的(de)，但壓(ya)力正常(chang)時(shi)，空(kong)調(diao)制冷正常(chang)，流(liu)水不間斷(duan)。是(shi)什么原因(yin)導致(zhi)這(zhe)種(zhong)現(xian)(xian)(xian)象的(de)發(fa)生(sheng)呢？難道真是(shi)壓(ya)縮(suo)(suo)機(ji)內電(dian)(dian)(dian)機(ji)有(you)問題(ti)，拔下(xia)(xia)壓(ya)縮(suo)(suo)機(ji)連接線，測阻值正常(chang)，現(xian)(xian)(xian)在(zai)的(de)焦(jiao)點(dian)(dian)集(ji)中在(zai)電(dian)(dian)(dian)容(rong)(rong)(rong)上(shang)，如果容(rong)(rong)(rong)量(liang)偏(pian)(pian)低也會出現(xian)(xian)(xian)壓(ya)機(ji)過(guo)(guo)(guo)流(liu)保(bao)護(hu)的(de)，便將電(dian)(dian)(dian)容(rong)(rong)(rong)取下(xia)(xia)。因(yin)字跡模糊看不清楚，便用(yong)萬用(yong)表測量(liang)，這(zhe)一測量(liang)，問題(ti)就迎刃而(er)解(jie)了(le)。因(yin)1.5匹(pi)的(de)壓(ya)縮(suo)(suo)機(ji)配的(de)電(dian)(dian)(dian)容(rong)(rong)(rong)應(ying)該里(li)30-35uF，但這(zhe)個電(dian)(dian)(dian)容(rong)(rong)(rong)顯示的(de)是(shi)50uF，這(zhe)應(ying)該就是(shi)電(dian)(dian)(dian)容(rong)(rong)(rong)容(rong)(rong)(rong)量(liang)過(guo)(guo)(guo)大(da)，家用(yong)中央空(kong)調(diao)哪個好，導致(zhi)啟動電(dian)(dian)(dian)流(liu)偏(pian)(pian)大(da)而(er)壓(ya)縮(suo)(suo)機(ji)才保(bao)護(hu)停(ting)機(ji)的(de)。

換上一(yi)個30uF電(dian)容，加(jia)壓(ya)力值(zhi)到額(e)定運行電(dian)流。整(zheng)機(ji)制(zhi)冷恢復正常。這一(yi)故障，顯然(ran)是(shi)前(qian)維修(xiu)人(ren)員(yuan)維修(xiu)時未加(jia)考(kao)慮便(bian)裝上了(le)代(dai)用(yong)電(dian)容，試(shi)機(ji)壓(ya)縮機(ji)運轉了(le)便(bian)交付使用(yong)；后面幾位維修(xiu)人(ren)員(yuan)又沒(mei)仔細分析檢查，使這臺空調屢(lv)修(xiu)不(bu)愈帶(dai)(dai)病工作(zuo)了(le)差(cha)不(bu)多一(yi)年左右，沒(mei)將(jiang)壓(ya)縮機(ji)損壞以屬萬幸。需要說明的是(shi)電(dian)容容量過大(da)也會導致電(dian)流增(zeng)大(da)，整(zheng)機(ji)工作(zuo)不(bu)正常。以后碰到這類故障時別忘了(le)檢查一(yi)下啟動電(dian)容。接(jie)用(yong)戶電(dian)話(hua)反映他的空調使用(yong)效(xiao)果不(bu)理想，帶(dai)(dai)上工具上門(men)維修(xiu)，該(gai)空調型(xing)號為海爾(er)KFRd-33A。

.室(shi)(shi)內機(ji)(ji)(ji)正(zheng)常(chang)(chang)，室(shi)(shi)外機(ji)(ji)(ji)不(bu)工(gong)作這種(zhong)故障有(you)兩(liang)種(zhong)：一種(zhong)是(shi)空調(diao)器(qi)(qi)室(shi)(shi)外機(ji)(ji)(ji)已收到開機(ji)(ji)(ji)指令，室(shi)(shi)內機(ji)(ji)(ji)工(gong)作正(zheng)常(chang)(chang)，屬于(yu)室(shi)(shi)外機(ji)(ji)(ji)不(bu)工(gong)作；另一種(zhong)是(shi)室(shi)(shi)外機(ji)(ji)(ji)剛工(gong)作就停止。通常(chang)(chang)引起室(shi)(shi)外機(ji)(ji)(ji)不(bu)工(gong)作的(de)原因有(you)：CPU 輸出控制電路不(bu)正(zheng)常(chang)(chang)、室(shi)(shi)外機(ji)(ji)(ji)信號(hao)線不(bu)良或接錯、室(shi)(shi)外機(ji)(ji)(ji)電路部件有(you)損壞、電源電壓低或過電流(liu)保護等。檢修時(shi)首先檢査(cha)易引起故障的(de)連接線路（特別是(shi)有(you)加長線的(de)空調(diao)器(qi)(qi)更易出現此類故障）。