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post #143 of (permalink) Old 28th July 2007
fireball scenic
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It's my opinion that the mirror switch is in some way to blame for the fault - a dead short would pop the fuse instantly. This fault must be down to a progressive failure i.e. high resistance in the switch giving rise to high current and temperature in the switch itself. It's as though the switching element itself has in some way fallen apart and created a circuit inside the switch. The ground wire to the switch (black cable) was the one that got hot and started the fire. The burning question (no pun intended) is what created the current path for the black wire to burn with the switch off and the circuit supposedly open?

The 15A fuse seems a little bit on the high side for the gauge of wire connecting to the mirror electrics as these are very small?
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