電炒(chao)鍋(guo)按其(qi)使(shi)用(yong)性能分,有組(zu)合式和整件(jian)兩種(zhong);按電熱(re)元(yuan)件(jian)的(de)形式分,有單用(yong)管(guan)狀(zhuang)電熱(re)元(yuan)件(jian)的(de)和管(guan)狀(zhuang)電熱(re)元(yuan)件(jian)鑄在鉛塊中(zhong)作(zuo)電熱(re)盤的(de)兩種(zhong);按其(qi)功能可(ke)分簡單型(xing)和調溫型(xing)。
最為常(chang)見的故障是電(dian)(dian)(dian)(dian)熱(re)(re)盤中的電(dian)(dian)(dian)(dian)熱(re)(re)元件損(sun)壞。電(dian)(dian)(dian)(dian)熱(re)(re)元件常(chang)作成電(dian)(dian)(dian)(dian)熱(re)(re)管,檢修(xiu)時(shi),可將用萬表打在R×1檔,測量(liang)(liang)位(wei)于(yu)電(dian)(dian)(dian)(dian)炒(chao)鍋的額定功率越(yue)大(da),阻值越(yue)小。倘若測量(liang)(liang)時(shi)表針(zhen)指在“∞”處,則可判定是電(dian)(dian)(dian)(dian)熱(re)(re)管中電(dian)(dian)(dian)(dian)熱(re)(re)絲燒(shao)斷,須重新(xin)換上(shang)同型號同規格的電(dian)(dian)(dian)(dian)熱(re)(re)管。換后還須用兆歐表測量(liang)(liang)一下電(dian)(dian)(dian)(dian)熱(re)(re)管的電(dian)(dian)(dian)(dian)熱(re)(re)絲與電(dian)(dian)(dian)(dian)炒(chao)鍋鍋體的絕緣電(dian)(dian)(dian)(dian)阻,應大(da)于(yu)1MΩ方可使用。
電炒鍋故障維修
【例1】故障(zhang)現象:電(dian)炒鍋接通電(dian)源(yuan)后,溫度(du)上(shang)升(sheng)很慢,菜很難炒熟。
檢修:產生這(zhe)種故(gu)(gu)障(zhang)的原因(yin),對于雙金屬調(diao)(diao)溫式電炒鍋(guo),除了(le)溫度調(diao)(diao)節偏低或(huo)電熱(re)絲接觸(chu)不良外(wai),溫度調(diao)(diao)節器失效較為(wei)常見,這(zhe)時一般應(ying)予以更換。而本例為(wei)可控硅(gui)調(diao)(diao)溫式,經(jing)查為(wei)電容器c絕緣下降,導致(zhi)充電緩慢而使(shi)vs不能(neng)可靠觸(chu)發導通(tong),加熱(re)很慢。將(jiang)c更換后(hou)加熱(re)正常。若電位器rp接觸(chu)不良,也會形(xing)成(cheng)本故(gu)(gu)障(zhang)。
【例2】故障現(xian)象:電炒(chao)鍋通電并旋動旋鈕后(hou),鍋內始終不熱,指示燈不亮。
分(fen)析與檢修:粗(cu)看似(si)乎是電(dian)(dian)(dian)(dian)源不(bu)通的現象。先(xian)檢查電(dian)(dian)(dian)(dian)源線、電(dian)(dian)(dian)(dian)源插接件之間的接觸(chu)等,基(ji)本(ben)良好(hao),無斷線。該(gai)電(dian)(dian)(dian)(dian)炒鍋也是采用(yong)可控硅(gui)調溫,用(yong)萬用(yong)表分(fen)別檢查各器件,發(fa)現觸(chu)發(fa)二(er)極管已開路(lu)損壞,使(shi)可控硅(gui)得不(bu)到觸(chu)發(fa)電(dian)(dian)(dian)(dian)壓(ya)而(er)始終截止,電(dian)(dian)(dian)(dian)熱器不(bu)發(fa)熱,指示燈也不(bu)能亮。用(yong)0.5w/20v觸(chu)發(fa)二(er)極管更換后,電(dian)(dian)(dian)(dian)砂鍋恢復正常。此外(wai),如果燈泡斷路(lu)或:eh斷路(lu)(比較多見(jian))、vs斷路(lu)均會(hui)導致本(ben)故障。
多功能電熱鍋故障維修
多功能電熱鍋的燈不亮、不加熱
(1)檢查電源線是否通電。
(2)開(kai)關(guan)燈(deng)壞,換開(kai)關(guan)燈(deng),(打開(kai)后蓋撥開(kai)燈(deng)連線,換上新燈(deng)即可)。
(3)溫控器觸點燒壞(huai),換溫控器。
(4)加熱管燒壞,換新鍋。
多功能電熱鍋的一會加熱、一會停
(1)溫控器失靈,換(huan)溫控器。
(2)脫體,換新鍋。
多功能電熱鍋做米飯鍵燈亮與否不影響使用,如(ru)米飯做不好(hao),檢查鍋內(nei)做米飯溫控器。
多功能電熱鍋的漏電故障
(1)鍋內是否有脫落電線。
(2)電熱(re)管(guan)與電線相連(lian)處是否有磁墊。
(3)溫(wen)控器等帶電(dian)(dian)的電(dian)(dian)器原件(jian)是否(fou)碰到鍋體。
(4)電(dian)熱管是否(fou)漏電(dian),如果熱管漏電(dian),只能換新鍋。
(5)使(shi)用的插座是(shi)否有(you)接地(di)線。
(6)進水或受潮。
(7)不要用電(dian)筆(bi)上的燈亮與(yu)否來判斷是否漏電(dian)。
多功能電熱鍋的塑料件(塑底座、鍋耳等)破碎,先從新鍋拆件(jian),自(zi)己更換(huan),再以(yi)舊換(huan)新。