刮水開(kāi)關(guān)可按圖所示電路進(jìn)行檢查,當(dāng)開(kāi)關(guān)撥至0檔時(shí),試燈EL2點(diǎn)亮;當(dāng)開(kāi)關(guān)撥至1檔時(shí),試燈ELI和EL2應(yīng)點(diǎn)亮;當(dāng)開(kāi)關(guān)撥至2檔時(shí),試燈EL2點(diǎn)亮;當(dāng)撥至3檔時(shí),試燈EL3點(diǎn)亮。否則為內(nèi)部接觸不良或燒壞,應(yīng)予以拆開(kāi)檢修。刮水開(kāi)關(guān)也可用萬(wàn)用表檢查。
我要提問(wèn)