則(ze)為性能系統故(gu)障(zhang)(zhang)；七、抽濕(shi)模式(shi)室(shi)(shi)內(nei)溫(wen)(wen)(wen)(wen)度(du)過低(di)保護故(gu)障(zhang)(zhang)排查(cha)方(fang)(fang)法1、檢查(cha)傳感器(qi)本體線(xian)組是否破皮(pi)；若(ruo)有則(ze)進行(xing)更換；2、檢查(cha)傳感器(qi)本體與(yu)電控主板之(zhi)間(jian)(jian)接(jie)線(xian)是否牢(lao)固可靠，若(ruo)存(cun)(cun)在(zai)問題則(ze)進行(xing)調(diao)整(zheng)；3、用(yong)萬用(yong)表檢測傳感器(qi)阻值(zhi)(zhi)(zhi)，并與(yu)房(fang)間(jian)(jian)實際溫(wen)(wen)(wen)(wen)度(du)進行(xing)比(bi)較(jiao)(jiao)，若(ruo)二(er)(er)者(zhe)溫(wen)(wen)(wen)(wen)度(du)值(zhi)(zhi)(zhi)偏(pian)差較(jiao)(jiao)大，則(ze)說明(ming)為傳感器(qi)故(gu)障(zhang)(zhang)；若(ruo)二(er)(er)者(zhe)溫(wen)(wen)(wen)(wen)度(du)值(zhi)(zhi)(zhi)一致(zhi)，且房(fang)間(jian)(jian)溫(wen)(wen)(wen)(wen)度(du)較(jiao)(jiao)高，則(ze)為主板故(gu)障(zhang)(zhang)；若(ruo)二(er)(er)者(zhe)溫(wen)(wen)(wen)(wen)度(du)值(zhi)(zhi)(zhi)一致(zhi)，風管式(shi)家(jia)用(yong)空調(diao)安裝(zhuang)，且室(shi)(shi)內(nei)環境溫(wen)(wen)(wen)(wen)度(du)本身(shen)偏(pian)低(di)，則(ze)為正常現象，需解釋處(chu)理；八、室(shi)(shi)外保護故(gu)障(zhang)(zhang)排查(cha)方(fang)(fang)法1、檢查(cha)內(nei)外機連接(jie)線(xian)是否存(cun)(cun)在(zai)加(jia)長或者(zhe)連接(jie)不可靠的(de)情況(kuang)，若(ruo)存(cun)(cun)在(zai)問題則(ze)進行(xing)對應更換或者(zhe)調(diao)整(zheng)。

再看(kan)看(kan)穩不穩定，一(yi)般市電(dian)(dian)(dian)低于190伏的時候(hou)(hou)定頻空(kong)調就不能(neng)(neng)工(gong)作了(le)，變頻空(kong)調適應電(dian)(dian)(dian)壓(ya)的能(neng)(neng)力很強，一(yi)般不用(yong)考(kao)慮電(dian)(dian)(dian)壓(ya)問(wen)題。處理方法是使用(yong)穩壓(ya)器，如(ru)(ru)果(guo)(guo)(guo)還是不行(xing)就要另外拉線了(le)。二電(dian)(dian)(dian)壓(ya)如(ru)(ru)果(guo)(guo)(guo)沒有(you)(you)問(wen)題，就要考(kao)慮是不是缺少(shao)冷氣了(le)。具體判斷方法是觀察室外機粗銅(tong)管(guan)(guan)有(you)(you)沒有(you)(you)結(jie)霜(shuang)現象，或者(zhe)用(yong)鉗表(biao)監測運(yun)行(xing)電(dian)(dian)(dian)流。一(yi)般缺氟，電(dian)(dian)(dian)流都(dou)小于正常運(yun)行(xing)時候(hou)(hou)的電(dian)(dian)(dian)流。如(ru)(ru)果(guo)(guo)(guo)細(xi)銅(tong)管(guan)(guan)和(he)粗銅(tong)管(guan)(guan)同時結(jie)霜(shuang)，說明(ming)管(guan)(guan)道有(you)(you)堵(du)塞的情況，或者(zhe)銅(tong)管(guan)(guan)壓(ya)扁(bian)，或者(zhe)毛(mao)細(xi)管(guan)(guan)臟堵(du)或者(zhe)冰(bing)堵(du)，風(feng)(feng)管(guan)(guan)式家用(yong)空(kong)調維(wei)修，如(ru)(ru)果(guo)(guo)(guo)懷疑冰(bing)堵(du)，風(feng)(feng)管(guan)(guan)式家用(yong)空(kong)調多少(shao)錢一(yi)臺，可以(yi)開(kai)制熱看(kan)看(kan)、然后再開(kai)回制冷，等冰(bing)化了(le)又好(hao)了(le)。如(ru)(ru)果(guo)(guo)(guo)是臟堵(du)，那就請人處理了(le)（一(yi)般用(yong)高(gao)壓(ya)氮氣來吹）。

上電(dian)(dian)開機初始2分鐘內檢(jian)查(cha)內機電(dian)(dian)源主繼(ji)電(dian)(dian)器是否有向室外輸出220V交流電(dian)(dian)壓(ya)，若(ruo)無則(ze)說明(ming)為室內主板(ban)故(gu)障(zhang)(zhang)；3、測量N、S之間的直流電(dian)(dian)壓(ya)，若(ruo)電(dian)(dian)壓(ya)值(zhi)為固定數值(zhi)或者跳變(bian)電(dian)(dian)壓(ya)值(zhi)較(jiao)(jiao)小，古城區風管式家(jia)用空(kong)調，則(ze)說明(ming)為內機主板(ban)故(gu)障(zhang)(zhang)；若(ruo)電(dian)(dian)壓(ya)值(zhi)為跳變(bian)較(jiao)(jiao)大(da)的數值(zhi)，則(ze)說明(ming)為外機故(gu)障(zhang)(zhang)；4、檢(jian)查(cha)變(bian)頻外機電(dian)(dian)控(kong)盒指示(shi)燈(deng)(deng)工作情況(kuang)：（1）若(ruo)變(bian)頻室外電(dian)(dian)控(kong)盒中指示(shi)燈(deng)(deng)不(bu)亮，則(ze)需(xu)要(yao)將所有負(fu)載(zai)拔掉，若(ruo)指示(shi)燈(deng)(deng)變(bian)亮，則(ze)說明(ming)為室外負(fu)載(zai)故(gu)障(zhang)(zhang)，需(xu)進(jin)行一一排(pai)查(cha)；若(ruo)指示(shi)燈(deng)(deng)仍不(bu)亮，則(ze)需(xu)要(yao)檢(jian)查(cha)電(dian)(dian)抗器或者電(dian)(dian)感，如有問題則(ze)需(xu)要(yao)進(jin)行更換。