Last time out my trailer brakes locked up on me preventing me from backing trailer into water to load boat. Eventually got them to relax long enough to load up boat and back into my shop. I don’t want to go back out again until I know this issue is resolved. What could be the culprit…low fluid? If there is anything else to check please let me know. Boat is a 2017 Eyra/tandem trailer. Thanks.
Tony D