, posted Thu 9 Oct 13:55
Thermo-pride oil furnace approx 6 years old. Burner comes on, several minutes later, blower kicks on for 18 seconds, then shuts down. Few minutes later blower on again for 18 seconds, shuts down. Third time stays on. Adjusted fan limit controller, then replaced fan limit controller. Then found secondary fan limit controller. They seem to be fighting each other. Do I need the secondary? Could problem be something else (filter is clean).
"Oil furnance blower" 
