If the motor still running, the motor should be fine., F" E* [& G" K5 c, R1 B
Possible reason: * M+ P4 t3 V6 J/ a0 Y* ]9 yFlame sensor, up limit sensor or the pressure differential sensor.) O5 b* n3 T5 G( ^# i7 g1 o! d
Open the control box, there maybe there is one light flashing tell you what's the promble.