YC 1 wrote:
It is not unusual for fuse boxes to need replacement. The contacts can become resistive which can then lead to heat and ultimately a slow disintegration of the box.
x2
I personally have repaired two bad fuse boxes for friends. In both cases, a bad solder joint on the fuse connector mounted on the PC board was the culprit. It would cause enough heat to melt the fuse.
It wasn't an issue with over-current which would then pop the fuse, it was an issue of poor workmanship, leading to a bad connection, which then of course meant circuit failure with the fuse still good.
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