Fender Rumble 500 Issue

I purchased a Rumble 500 a couple years ago. Sounded great but always had a slight crack/pop happen every now and then. Progressively got worse over the years so I took it to a repair shop who cleaned all the connections.
Took it home and it sounded great for about 10 minutes before it cut out completely. All the lights went out and no sound was produced , but you can still hear the fan spinning. Took it back to the shop and they checked all the power connections and they were good but couldn't find the issue. Granted this repair shop probably not the best around but the only one in my area. Could it be a capacitor/fuse blown or another connection issue somewhere?

Thanks for any help
 
Whoever you took it to should not give up their paper route.

Don't assume anything about what might be wrong. Without a QUALIFIED tech looking at it, which doesn't seem to have happened yet, there is no point in guessing. Even a blown fuse blows for a reason and needs to be diagnosed. The previous issues may or may not be related. Your assessment of something being wrong somewhere is as close as you get without a PROPER diagnosis, which again, hasn't taken place.
I think you're best course of action right now is to Contact Fender Tech Support.