FRONT pdc sensor beeps constantly

[Vasilis]

hi to all,

I have purchased through ebay a full retrofit kit - front sensors. Went to local BMW dealer to install it. they did and everything was working normally. But for three days now whenever i either press the button or engage reverse, the front right sensor (not the far right) is constantly beeping. I will go again tomorrow to them and see if the cabling is the problem.

Any ideas/suggestions on what can I check fm my side?