If the motor still running, the motor should be fine.% s N- F! [4 k( W
Possible reason:; c4 K0 X& k. c- U3 R3 `
Flame sensor, up limit sensor or the pressure differential sensor. 7 O# {' I, ^0 |9 S% l% M6 ?Open the control box, there maybe there is one light flashing tell you what's the promble.