If the motor still running, the motor should be fine.% K+ G; ?' O* N9 z8 E9 c1 x, h
Possible reason: " H1 F* u, C X) o3 M" `: {Flame sensor, up limit sensor or the pressure differential sensor.( d! j$ y& p4 ?; W- e
Open the control box, there maybe there is one light flashing tell you what's the promble.