If the motor still running, the motor should be fine. 6 m: t9 j2 ?$ _7 ?. S0 @Possible reason: # n) I( a( d' L; B; `5 U1 DFlame sensor, up limit sensor or the pressure differential sensor. 6 n7 P% ^: P0 p. pOpen the control box, there maybe there is one light flashing tell you what's the promble.