Fuses That "Blow" Repeatedly
Without being able to "hands on" troubleshoot the circuit served by the repeatedly blowing fuse, no one can identify the specific cause/defect which is causing your problem.
Therefore, the following generic answer can be applied to any electrical circuit, whether in a vehicle, or in a building, or whether alternating current [AC] or direct current [DC].
Fuses [and Circuit Breakers] are safety devices designed and installed in electrical circuits TO PROTECT the conductors [wires] and other components from short circuit conditions and/or overload conditions which cause an extremely large flow of electrical current [measured in Amperes], which causes overheating of the conductors that results in damage to the insulation and the conductors. And in a worst case scenario, the probability of a FIRE which could destroy the vehicle, house, or other structure in which the circuit is located.
When a fuse or Circuit Breaker [and replacement fuses, or "tripping" Circuit Breakers] "blow," especially if it happens repeatedly, is an indication of an UNSAFE CONDITION in that circuit, usually a short.
The fuse or circuit breaker is doing what it was designed, intended, and installed to do, protect the conductors and components of the circuit which it serves.
The proper "fix" is for a qualified technician, who knows what he or she is doing, to troubleshoot the involved circuit, find and identify the defect, and make proper repair [s], BEFORE replacing the fuse again [with the properly sized fuse or before resetting a circuit breaker].
Some ignorant few people will suggest installing a larger fuse or breaker to solve the problem, BUT that will only increase the hazard, not correct it. Do not follow "bad" advice by installing a larger fuse in a misguided attempt to correct the problem. To install an over-sized fuse would almost guarantee damage to the wiring and an electrical system fire.
worn ignition switch
You may have a short in the ignition system.
why does fuses keep going out
Sounds like a short.
I found that bad caps in the ECM (computer) will cause the IGN (ignition) fuse to blow.
You have an electrical short.
There is a sort somewhere in the starting system
no A FRN fuse is a slow blow fuse where an non is a fast blow fuse. In a pinch a slow blow fuse can be use in a fast blow circuit but not the other way around.
Disconnect the wire at the starter and try the ignition. My guess is that the starter itself is the problem. If the fuse does not blow then it is the starter, if it does blow then go to the relay center in the engine compartment and check the starter relay. Work your way back to the ignition switch.
Disconnect the harness at the fuel pump and replace the fuse. If your fuse doesn't blow after turning the ignition on, you probably have a bad fuel pump, check it for shorts.
1995 Audi A6 Number 8 fuse keeps blowing. Fuse runs domelight, reading light, clock, memory seat, memory side mirror, trunk light. Fuse blow with car just sitting in the drive way parked with key out of ignition. Fuse start to repeatly blow all of a sudden.
Make sure that the fuse is the right size and the right type (slow blow or fast blow.) It the fuse is right then the electrical system will have to be checked to see what is drawing too much power.