If the motor still running, the motor should be fine. . q% |, b6 V6 e- T5 v K1 P; iPossible reason: 3 h v% p2 X, K. E9 Y, [- { ?Flame sensor, up limit sensor or the pressure differential sensor. - Y {+ |/ d" sOpen the control box, there maybe there is one light flashing tell you what's the promble.