What would cause an alternator fuse to blow?

What would cause an alternator fuse to blow?

If it was the fusable link, it is possible that some of the diodes shorted to ground. A third possibility is a mechanic accidentally shorted one of the alternator terminals to ground. The last possibility is the wire from the fuse to the regulator or field terminal shorted to the body of the car.

How many fuses do you need for an alternator?

Answer Wiki. There are 2 fuses for the alternator. One is usually a fusable link (wire) for connecting the stator diodes to the battery, and a lower value fuse (10 to 30 amp) for protecting the field (rotor).

Why does my Alt fuse keep blowing out?

I covered the bare metal under it with rubber to ensure that I wouldn’t ground, then screwed a nut and washer ON TOP of the wire, instead of the normal setup which is nut, wire, nut+washer (broken post).

What’s the normal operation of an alternator in a car?

The normal operation is you drain a lot of Battery Power when you Start your vehicle, and the Alternator helps get it back to normal charge. If your Battery is dead, you jump started the vehicle, then while driving turned the entertainment system on, I assume you are talking about an Alternator for an automobile.

If it was the fusable link, it is possible that some of the diodes shorted to ground. A third possibility is a mechanic accidentally shorted one of the alternator terminals to ground. The last possibility is the wire from the fuse to the regulator or field terminal shorted to the body of the car.

Answer Wiki. There are 2 fuses for the alternator. One is usually a fusable link (wire) for connecting the stator diodes to the battery, and a lower value fuse (10 to 30 amp) for protecting the field (rotor).

How is a fusible link like a weak link?

While fusible links can be a bit of a pain if you don’t remember where they all are, they do make diagnosis a lot simpler once you locate them. A fusible link is essentially a fuse set directly in line with the wiring and works as much like a literal weak link in the chain as you can imagine.

I covered the bare metal under it with rubber to ensure that I wouldn’t ground, then screwed a nut and washer ON TOP of the wire, instead of the normal setup which is nut, wire, nut+washer (broken post).

What should I do if my alternator is not working?

The solution is to check your car’s manual for the particular fuse that controls the alternator and replace it. In some cars, you might also find another small fuse to the alternator’s control—usually a 15A to 20A fuse. An alternator does usually has 3 or 4 wires to it to function properly.

What happens when a fuse blows on an alternator?

Your alternator will typically stop working when the fuse for it has blown. The fuse might blow because of old age, and it might blow because of a power surge within your car. Either way, you’re going to have no choice to replace a fuse when you have an alternator fuse blown.

The solution is to check your car’s manual for the particular fuse that controls the alternator and replace it. In some cars, you might also find another small fuse to the alternator’s control—usually a 15A to 20A fuse. An alternator does usually has 3 or 4 wires to it to function properly.

Where can I get an alternator fuse for my car?

You can either visit any auto parts store and ask them to provide you with an alternator fuse for your specific make and model car or order an alternator fuse online. Step 2: Use the owner’s manual for your car to find out where your alternator fuse is located.

Can a blown fuse be replaced in a car?

The physical act of replacing a blown alternator fuse is one of simplest auto repair jobs around. Replacing any blown fuse is actually very easy and doesn’t require much skill or technical know-how. But we should point out that there are usually upwards of 40 fuses in the average fuse box in a car these days.