1. Neu dong dien tang dot ngot qua cao, may on ap se khong the phan ung kip (tat ca cac loai may on ap nguyen ly server dieu khien dong co mot chieu deu co loi nay) voi nhung noi dien bien doi qua dot ngot thi cac on ap hien nay chua the dap ung tot nhat duoc, nhu vay dien ra co the cao hon binh thuong va lam chay thiet bi.
2. Moi thiet bi dien deu co xac suat loi hong. Co the on ap cua ban bi hong, ban can dua di bao hanh ngay.
