I purchased the newer blower, sometime in the spring of 2016. Haven't had it that long, all the sudden the turbo button stopped functioning correctly. I own a lot of their other tools and have been pleased thus far. Little disappointed in this blower messing up. Has anyone else experienced this, it's like the turbo button doesn't want to speed up. Blower still functions correctly with just 480 CFM's. However hit the turbo button, and you're out a luck nothing really happens.