I had told you that according to my source B1447 has nothing to do with the top What does your source say B1447 means? Did not have same code with old motor. Old motor problem was in the gear box. BTW, the motor lifts the tonneau cover without an error. Error comes when the tonneau is being lower. Seems counter-intuitive - there should be relatively no load on the motor on the way down, so less likelihood of a shorting problem. What do you think?