空調制冷不制熱的原因
空(kong)調制冷不(bu)制熱的原因
空調器制冷正(zheng)常(chang)，但不(bu)制熱的故障，常(chang)常(chang)出現以(yi)下(xia)幾種情況：
１． 對(dui)于ＫＦＲ型空調(diao)器，若制(zhi)冷正常，而不制(zhi)熱，其故障主(zhu)要發(fa)生在四(si)通電磁(ci)閥或其控制(zhi)電路(lu)。
２． 某空調器不(bu)能制(zhi)(zhi)熱(re)(re)(re)(re)，但始(shi)終制(zhi)(zhi)冷，測量四(si)(si)通(tong)電(dian)(dian)(dian)(dian)(dian)磁(ci)閥(fa)線(xian)圈(quan)兩端電(dian)(dian)(dian)(dian)(dian)阻值，結(jie)果為無窮大，說明線(xian)圈(quan)有開(kai)是(shi) 線(xian)圈(quan)根部斷線(xian)，焊接(jie)好(hao)后(hou)試機，制(zhi)(zhi)熱(re)(re)(re)(re)恢復正常。某華寶ＫＦＲ－３０Ｗ空調器制(zhi)(zhi)冷正常，但置于制(zhi)(zhi)熱(re)(re)(re)(re)狀態(tai)時，四(si)(si)通(tong)電(dian)(dian)(dian)(dian)(dian) 磁(ci)閥(fa)有電(dian)(dian)(dian)(dian)(dian)磁(ci)聲，但不(bu)動(dong)作(zuo)。測四(si)(si)通(tong)閥(fa)兩端電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)，結(jie)果低于２２０Ｖ許多(duo)，說明四(si)(si)通(tong)閥(fa)是(shi)因供電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)不(bu)足(zu)，產生磁(ci)力 不(bu)夠，引起動(dong)作(zuo)失靈而(er)無法制(zhi)(zhi)熱(re)(re)(re)(re)。經查是(shi)與四(si)(si)通(tong)閥(fa)線(xian)圈(quan)串(chuan)聯的控(kong)制(zhi)(zhi)繼電(dian)(dian)(dian)(dian)(dian)器觸(chu)(chu)點接(jie)觸(chu)(chu)不(bu)良，電(dian)(dian)(dian)(dian)(dian)阻增大，致使電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya) 降(jiang)低。處(chu)理接(jie)觸(chu)(chu)觸(chu)(chu)點后(hou)，空調器恢復制(zhi)(zhi)熱(re)(re)(re)(re)。
２．對于ＫＦＤ型電(dian)(dian)熱(re)(re)(re)式(shi)(shi)空調器(qi)(qi)，若制(zhi)(zhi)(zhi)冷正常，不(bu)能制(zhi)(zhi)(zhi)熱(re)(re)(re)，其故障(zhang)主(zhu)要出現在電(dian)(dian)熱(re)(re)(re)器(qi)(qi)及其供(gong)電(dian)(dian)回路的(de)交(jiao)流接(jie)觸(chu)器(qi)(qi) 溫(wen)控(kong)(kong)器(qi)(qi)和(he)超溫(wen)熔斷(duan)(duan)(duan)器(qi)(qi)。如某電(dian)(dian)熱(re)(re)(re)式(shi)(shi)空調器(qi)(qi)不(bu)能制(zhi)(zhi)(zhi)熱(re)(re)(re)，但制(zhi)(zhi)(zhi)冷正常。在斷(duan)(duan)(duan)電(dian)(dian)狀態下(xia)，測得電(dian)(dian)熱(re)(re)(re)器(qi)(qi)的(de)電(dian)(dian)阻絲完好(hao)， 熔斷(duan)(duan)(duan)器(qi)(qi)也正常，判斷(duan)(duan)(duan)是溫(wen)控(kong)(kong)器(qi)(qi)失靈。用導線將溫(wen)控(kong)(kong)器(qi)(qi)的(de)觸(chu)點短接(jie)試機，制(zhi)(zhi)(zhi)熱(re)(re)(re)正常。更(geng)換新的(de)同型號溫(wen)控(kong)(kong)器(qi)(qi)后，故障(zhang)排(pai)除。
３．對于采用ＰＴＣ發(fa)(fa)熱(re)元件(jian)(jian)來(lai)制熱(re)的空調器(qi)，如寶華ＫＴＱ－３ＤⅡ型空調器(qi)，若制冷正常，不能制熱(re)的因是(shi)ＰＴＣ發(fa)(fa) 熱(re)元件(jian)(jian)沒有工作。在斷電的狀態下，測量(liang)ＰＴＣ發(fa)(fa)熱(re)元件(jian)(jian)，發(fa)(fa)現其(qi)并(bing)沒有損壞，但固定引線的兩螺母已銹蝕估 計是(shi)因螺母銹蝕造成(cheng)ＰＴＣ與外接線間(jian)接觸不良。但更換新螺母后試機仍(reng)不制熱(re)，再查是(shi)加(jia)熱(re)開關損。
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