Anyone else have problems with their Nero 3 not turning on after turning them off? was told to soak in hot water and vinegar. They run fine so long as they aren't shut down..once they are they need to be pulled apart and manually have the prop spun to get it to go. I usually do a full tear down/ cleaning every month, Any suggestions? I'm in Canada and its a PITA to send in for warranty plus I have no other units to fall back on. I knew I should have gone with the MP10s