接(jie)觸(chu)(chu)器(qi)不(bu)(bu)吸合多數(shu)是接(jie)觸(chu)(chu)器(qi)本(ben)身線圈(quan)(quan)沒有(you)得到供(gong)電(dian)(dian)電(dian)(dian)壓，而線圈(quan)(quan)斷線或銜鐵(tie)卡阻極少(shao)見，判斷時用萬(wan)用表測(ce)量(liang)接(jie)觸(chu)(chu)器(qi)線圈(quan)(quan)工作(zuo)電(dian)(dian)壓，無(wu)電(dian)(dian)壓時繼(ji)續查找(zhao)線圈(quan)(quan)供(gong)電(dian)(dian)的相(xiang)(xiang)關電(dian)(dian)路(lu)，比(bi)如：線圈(quan)(quan)供(gong)電(dian)(dian)電(dian)(dian)源、按鈕、與線圈(quan)(quan)供(gong)電(dian)(dian)相(xiang)(xiang)關的互(hu)鎖按鈕、互(hu)鎖接(jie)觸(chu)(chu)器(qi)的輔助常開、常閉觸(chu)(chu)點(dian)(dian)，熱(re)繼(ji)電(dian)(dian)器(qi)觸(chu)(chu)點(dian)(dian)，定時器(qi)觸(chu)(chu)點(dian)(dian)-----等等與本(ben)接(jie)觸(chu)(chu)器(qi)線圈(quan)(quan)有(you)串聯關系的控(kong)制觸(chu)(chu)點(dian)(dian)功(gong)能(neng)是否正常，找(zhao)到本(ben)線圈(quan)(quan)不(bu)(bu)能(neng)供(gong)電(dian)(dian)的故障點(dian)(dian)。（當然如果線圈(quan)(quan)有(you)電(dian)(dian)壓不(bu)(bu)吸合，就直接(jie)換新即(ji)可） 

1、接觸器(qi)線圈斷路， 

2、檢查電(dian)源電(dian)壓是否(fou)達到額定電(dian)壓的(de)(de)85%以(yi)上，這是接觸器線圈吸和電(dian)壓的(de)(de)低要(yao)求。 

3、檢查接觸器線圈適(shi)用電(dian)壓等級是否與(yu)電(dian)源相應，看電(dian)壓是220V還是380V. 

4、檢查電源是交(jiao)流還是直流。

6、檢查電源開(kai)關是(shi)否(fou)接通(tong)，啟動(dong)回路(lu)是(shi)否(fou)斷路(lu)。