Do these dispensers ever die???? We’ve sold at least a thousand 500’s over the years, and these things just don’t give up! Years of selling these units and we haven’t had a single warrantee claim or defective product yet. Any customer calls on these units, and we just forward the call to International’s tech support team, who seem like they process support calls faster than it takes us to actually transfer them. I honestly have no idea how they do it.