1.如(ru)果PTC電(dian)(dian)加(jia)熱器無(wu)法加(jia)熱，而電(dian)(dian)熱管內(nei)部斷線(xian)，無(wu)法修復的話就只能更換；如(ru)果是線(xian)路或接頭斷路或松動(dong)可以重新(xin)連接。

2.如果是電(dian)加熱管破裂(lie)或斷裂(lie)，那(nei)么(me)只(zhi)有(you)更換電(dian)熱管。

3.如果(guo)是(shi)漏電(dian)(dian)就要確認漏電(dian)(dian)點，分(fen)情(qing)況考(kao)慮。如果(guo)是(shi)是(shi)電(dian)(dian)熱管(guan)本身，可(ke)用(yong)(yong)烤箱烘烤；絕緣阻值上不去的話，那(nei)可(ke)能(neng)要更(geng)換(huan)電(dian)(dian)熱管(guan)；如果(guo)是(shi)接線盒進(jin)水用(yong)(yong)熱風(feng)槍吹干；導線破皮(pi)的話可(ke)用(yong)(yong)膠(jiao)布包纏好或更(geng)換(huan)電(dian)(dian)線。