Fan limit switch...?
Run capacitor?
DeLorean Flux capacitor?

Any ideas...? Anyone...?

Furnace: Intertherm MGHA-056ABFC-02 Blower: Mortex 87-1008-34A Gas valve: Robertshaw-Grayson 7200ERCS-1 Hi! I see this is a fairly common problem, but that the diagnosis depends on certain factors, so I hope I am not being redundant by starting a new thread. My furnace pilot stays lit. The furnace b...