Brakes Stick On Tandem Axle Trailer After Adjusting and Testing With Trailer Brake Controller
Updated 02/03/2026 | Published 07/08/2024
Question:
Got a 2 axle trailer with electric brakes, I’ve tested with a 16 ram 5500 and a 12 ram 2500 with same results. I can hear humming when I apply brakes stick between brake pedal and seat on the rear axle I adjusted until brakes were slightly dragging, apply brakes and nothing changed. With brakes applied I tried to adjust one until the wheel locked up then let off the brakes it should be free? But it’s still locked up when off the brakes. Trailer cord runs through the tounge and I unplugged on the underside and checked wires with my power probe separate 2 wire and it says ground at both wires.
asked by: Jacob K
Expert Reply:
It sounds like like you have a short in one or more of your trailer brake magnets. I have linked our help article below on testing trailer brake magnets which will show you how to test each magnet and determine which ones need replaced.
Product Page this Question was Asked From
Dexter Electric Trailer Brake Assembly - 12" - Right Hand - 6,000 lbs
- Accessories and Parts
- Trailer Brakes
- Electric Drum Brakes
- RH
- 6000 lbs
- Brake Assembly
- Manual Adjust
- 12 x 2 Inch Drum
- Dexter
more information >
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Jerred H.
2/3/2026
Hey, were you able to test the trailer brake magnets to see which ones were shorted out? Knowing what you found could help others troubleshoot similar brake issues.