Today I picked up our new 20CK and hooked up the truck. On the way home, I noticed that when I hit the brakes the trailer brakes would activate, as expected, but they would seem to pulsate as certain speeds. Similar to the feeling of warped rotors on a vehicle.
It's worse the harder you use the brakes, and seems to be worse after you slow to 25 mph and slower. Sometimes it's worse than at other times. If you slow slowly, light on the brakes, it's hardly noticeable.
Since it's a short trip home, I don't have any more characteristics to share, or details.
Could this be caused by new trailer / brakes?
Anyone else notice this with their new trailer?
I'll add that I had the dealer service tech ride with me and he said that the magnets were not shorted and seemed to be functioning correctly. By watching the brake activator setting, he noticed that it was not changing as I pushed on the brakes, so no electrical shorts. When I bring it back to them on Monday, they will check it out further and maybe call Lippert for input.