While you wait for answers, we may have found some information which could help you.
Success
Message
Eureka Model 4870 Motor Replacement?
Eureka 4870 vacuum?
eureka 4870B smartboss, upright vaccum?
Vaccum, Eureka Model 6998 A?
Eureka Boss Smart Vac Thermal Cutoff ?
how doi i repair eureka boss 4870 vacuum cleaner?
How do I remove the canister motor 116.21514?
Older Eureka Boss Possilbe short?
How to fix idler clamp assembly (hardwood/carpet switch) on Eureka SmartVac?
need diragram for a Eureka The Boss Pro?
how can I fix my Eureka 431?
Eureka "boss" #5893 stops sucking after 10mins?