While you wait for answers, we may have found some information which could help you.
Click here for Replace Purchased ReplacementEureka Boss Smart Vac Thermal Cutoff ?
Vaccum, Eureka Model 6998 A?
Older Eureka Boss Possilbe short?
How to fix idler clamp assembly (hardwood/carpet switch) on Eureka SmartVac?
how can I fix my Eureka 431?
need diragram for a Eureka The Boss Pro?