If the motor still running, the motor should be fine. : v; s9 w) b, Y) qPossible reason: * c8 w- m% J# E2 j4 E) k7 O" oFlame sensor, up limit sensor or the pressure differential sensor.2 y3 a3 @( J8 f, p; V
Open the control box, there maybe there is one light flashing tell you what's the promble.