Louie, You must have another problem. The Fan Fix doesn't use the circuit breaker for power. Maybe the blower motor CB is going on and off, this is a common problem in 4th speed. Totally different circuit than the cooling fans. John Hervey www.specialTauto.com << I am experiencing the exact same problem... but have the Fan Fix. What's the deal? Louie Golden #10115 Sanford, NC >>