If the motor still running, the motor should be fine.: c( @# s2 g/ Z' m5 y& ] g
Possible reason:, B, s+ o$ v! [. F4 x
Flame sensor, up limit sensor or the pressure differential sensor. 9 N8 C- s8 _3 `1 O; WOpen the control box, there maybe there is one light flashing tell you what's the promble.