If the motor still running, the motor should be fine.& q( l* z* F& m N& V
Possible reason:- K. }6 r# p0 Z) N$ s# k
Flame sensor, up limit sensor or the pressure differential sensor. % m2 u2 N( a8 V$ z( b. S. rOpen the control box, there maybe there is one light flashing tell you what's the promble.