The breaker may need to be replaced if it trips very easily, doesn't trip when it should, can't be reset, is hot to the touch, or looks or smells burnt.
I-breaker ingadinga ukushintshwa uma ihamba kalula, ayikhubeki lapho kufanele, ayikwazi ukusethwa kabusha, iyashisa ekuthinteni, noma ibukeka noma inuka ukusha ....