poppin fuses

Hey fellas I’m new to this site and had a question about my set-up. I bought this set-up off ebay it came with compressor/tank combo and an Omega 3 trumpet horn. Everything was working fine until the other day I started poppin fuses. I followed one of the wiring set-ups on here someone had sent me in powerstroke.org. Anyway I have my compressor ran straight to the battery with a 30A in-line fuse on a toggle switch and grounded to the chasis. The horn is wired exactly the same but on a totally different circuit. The fuse that keeps poppin is the one for the horn. I checked all my wiring and nothing is broken. I continuity tested the solenoid and it seems to be fine as well. Its not the toggle switch either cuz I tried others. It works when it wants too.

Any help?

That’s going to be a tough one. I would try using an amp meter but a solenoid usually isn’t on long enough to get a reading.
Is it possible something is causing the solenoid to be sticking sometimes?

a continuity test on the solenoid won’t mean much. what was the resistance that you measured? fuses pop because of over current. either you have a short along the wiring after the fuse to the solenoid or the solenoid has shorted coils.

a sticking solenoid (assuming the coil is in good condition) won’t pop fuses.

As I said previously all the wiring is good. I didnt do a resistance test on the solenoid tho, what should I get?

Do I even need an in line fuse on the horn switch?

you should get more than a few dozen ohms or so. mine’s hooked to the factory horn button so the factory horn fuse protects it.

BTW, what’s the rating of your fuse for the solenoid?

I’m not sure what you’re askin about rating of the fuse, If your askin what size amp I had on it, it was a 30A mini fuse. I dont know if it makes a difference on what type of fuse. the compressor fuse is the tube type.

And there’s no kind of writing or anything on the solenoid itself

if a 30A fuse for the solenoid blows. something is really wrong. does it blow everytime you honk/try to honk or does it work some of the time and suddenly blows?

It may be coincedence but it seems to works fine as long as the truck is parked, but it works sometimes and sometimes it blows right away.

So what can I do?

follow the wire from end to end and make sure its not chaffed and grounding itself out somewhere.

best thing I’d try doing…is run two temp wires from battery Via a fuse straight to the solenoid.

that is what comes to mind for me as well