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In general, the reason fuses blow is there is a higher-than-acceptable amperage draw through that circuit. One way to get that effect is to try to run too many things on that circuit (such as plugging too many things into one electrical outlet in your home). Another way to draw more amperage is to have a short in the circuit, which effectively lowers the resistance level of that circuit. The voltage stays the same, so as the resistance goes to zero, the current goes to infinity, blowing the fuse.


SO, I'd suggest you check for too large a draw, such as you woudl have if your circuit has more stuff on it than it's supposed to have, OR check for a short -- usually the result of a loose wire bridging to ground, or a light fixture with a piece of metal causing a short.

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15y ago

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