[jpliddy]

hi all
i had a glow plug relay failure it was sticking on and flattened the battery when driving it was taking more power slightly than the alternator was putting in. i swopped the battery because it was over 8 years old i had a spare in shed lucky .
i had a look inside unit lot of bits in there but one of the contactors looked a bit burned. question is there a safety cut off in the glow plug relay unit?