( 1 )膨脹閥調(diào)節(jié)過松;

(2 )膨脹閥本身有毛病或感溫包安裝有錯(cuò)誤;

(3 )系統(tǒng)中制冷劑過多;

(4)應(yīng)對(duì)蒸發(fā)器進(jìn)行除霜(5 )查明情況進(jìn)行調(diào)整;

(6 )換閥片，( 7 )墊片等。吸氣壓力過低( 1 )膨脹閥或調(diào)節(jié)閥開度過小，( 2 )過濾器或節(jié)流孔冰塞，( 3 )堵塞感溫包泄露;

(4 )低壓管冰塞;(5 )液管堵塞，( 6 )出液閥或液管上其他閥門未開足，( 7 )過濾器被堵塞;(8 )系統(tǒng)中制冷劑不( 9 ) 制冷不足;

(10 )系統(tǒng)中循環(huán)的潤滑油太多;

(11 )蒸發(fā)器結(jié)霜太厚;

(12 )蒸發(fā)器表面污垢，( 13 )降低傳熱性能。( 1 )適當(dāng)調(diào)節(jié)膨脹閥的開度，( 2 )將冰塞先解凍，( 3 )若動(dòng)作后又重新結(jié)凍則應(yīng)更換干燥劑，( 4 )如果堵塞則應(yīng)拆下膨脹閥用酒精清洗過濾器或更換，( 5 )若感溫包泄漏應(yīng)更換;

(6 )采用以上方法解除冰塞;

(7 )將出液管閥開足或拆下過濾器清洗;

(8 )充添制冷劑;

(9 )查明原因采取解決措施;故障原因處理方法排氣壓力過高

( 1 )系統(tǒng)中有空氣等不( 2 )凝性氣體;

(3 )冷凝器水閥或水理調(diào)節(jié)閥未開;

(4 )進(jìn)入冷凝器的水溫過高或水量不( 5 )制冷不足;

(6 )冷凝器水管被污垢堵塞;