What is bad if the code light blinks continuous on white rodgers 50a55-143 board

Xx

I have the instructions ,but I still don't know what part might be bad.I am leaning towards flame sensor.what do you think?code says flame been sensed when no flame should be present.

what is bad if the code light blinks continuous on white rodgers 50a55-143 board


In the above post you did not mention you had the W/R directions and that is why I posted them so you could read them over. I feel you are on the right track but do not forget to test the conductor for the sensor also.

Where is the conductor,is at the control board?

conductor for the sensor also

It is a piece of special insulated wire for the connection of the flame sensor to the board. Good luck.