Well that's not good to hear, I bought a refurbished horn for 50 with my Viair system. Haven't gotten a chance to install any of it yet, hopefully it doesn't become a problem.
Is the compressor or horn the problem?
Umm well the compressor has been the main thing. I did manage to break the horn twice though. Once when I went offroading with my leveled 2011 I must have hit it on a rock. It cracked the horn near where the air line comes in. I just used JB weld and sealed it back up. Then sometime last fall one of the 3 horns just broke off on the highway! I hadn't been offroading so somewhere I guess it just snapped off. I stuck a screw in the air hole that fed into that horn and used JB weld on it.
Now he's the issues I've had with the compressor. The first one I mounted to the frame, I guess the water from the road messed it up. It quit running so Amazon sent me a new kit (Wolo wouldn't warranty it but amazon did). I had a bunch of issues with wiring but it's all good now. I've had the second kit in for probably 2 years now. The tank is good, however when it gets to -20 celsius or colder it'll just run and not push any air into the tank. Then guess who gets to come out to a dead battery the next day -_- . I plan to hook it up to a switch so that won't happen anymore, just haven't had the time yet!
Here are some pics of it today. I think it's about 3 years old now. Wolo Siberian Express with the turbo compressor and tank.