If the motor still running, the motor should be fine.& S9 A7 |2 N; X7 w1 v! A: V
Possible reason:7 X0 l0 B) P) e! z
Flame sensor, up limit sensor or the pressure differential sensor.- I3 s# z( T6 S$ [% ]9 v7 k1 O
Open the control box, there maybe there is one light flashing tell you what's the promble.