While you wait for answers, we may have found some information which could help you.
Click here for Eureka Boss VacuumEureka Model 4870 Motor Replacement?
how doi i repair eureka boss 4870 vacuum cleaner?
How to fix idler clamp assembly (hardwood/carpet switch) on Eureka SmartVac?
Eureka "boss" #5893 stops sucking after 10mins?
how can i fix eureka boss capture?
Vaccum, Eureka Model 6998 A?