If the motor still running, the motor should be fine. ! |& l3 O, A6 F$ T; }Possible reason: 2 q! k) n5 G/ x5 t3 ]1 X# sFlame sensor, up limit sensor or the pressure differential sensor. 9 \8 G* H0 U/ _) x5 v+ o* aOpen the control box, there maybe there is one light flashing tell you what's the promble.