According to Phillips Industries, the December edition of its monthly Qwik Tech Tips newsletter outlines “in clear language” how best to troubleshoot trailer lights when they are not working properly.

This is the primary cause of trailer-light problems. Symptoms include flickering, fast-blinking, dimness, intermittent operation (often when a trailer ball is used for a ground), and complete failure.

QUESTION: Every once in a while, the lights on my trailer go on and off while I’m driving down the road. The wires seem to have good connections. What could cause this? ANSWER: Chances are the ...

At the launch ramp or around the campfire, boater talk often turns to troubles—and topping the discussion, along with outboards and tow vehicles, is the boat ...