If the motor still running, the motor should be fine.# z) s) k2 c1 ]& F
Possible reason:1 J, [8 d) T8 {/ G. H" J& T, P$ b
Flame sensor, up limit sensor or the pressure differential sensor.( ` K3 E$ G# @. e
Open the control box, there maybe there is one light flashing tell you what's the promble.