How To Fix Old Fuse Box. Pop out the affected circuit and remove the two wires attached to it by removing loosening the screws. Does the wiring leaving the fuse box have any indicators of what it is.
If the screws dont tighten easily it means that they are already tight enough so dont force them. You will need a 100 amp main lug panel to replace the fuse box. If there are both 12-2 and 14-2 then you would have to take the panel cover off and see which plug they go to and use the correct amp fuse.
Put the breaker into place on the circuit board and then turn the breaker.
There are six slots you need to place different amp fuses either 15 20 or 30 in order to reach a total of 120. If the screws dont tighten easily it means that they are already tight enough so dont force them. If they are all 14-2 then you need 15 amp plugs if they are all 12-2 then you need 20 amp plugs. A fuse box has a series of threaded sockets into which the fuses are screwed in.
