If the motor still running, the motor should be fine. - a( \) J. Z* \ q* XPossible reason: ' d) v, ?0 p% `2 d- S/ @Flame sensor, up limit sensor or the pressure differential sensor.2 K! {6 N6 J! S7 \) |( b
Open the control box, there maybe there is one light flashing tell you what's the promble.