If the motor still running, the motor should be fine. m8 I, R K# d9 S; i1 n% M, N
Possible reason: . i1 q! j. U3 b: V$ kFlame sensor, up limit sensor or the pressure differential sensor./ P* `- G& G ~) H/ [; ^
Open the control box, there maybe there is one light flashing tell you what's the promble.