Why Is There A Clicking Noise Coming From My Electric Drum Brake Assemblies

Updated 06/13/2023 | Published 06/11/2023

Question:

I have a 25’ travel trailer, 7,000 lbs. I just put all new brakes on it and took it out for a test drive. As I walked around it checking hub temperatures, I heard a clicking sound coming from one wheel. Any idea what to look for?

asked by: Gilbert F

Expert Reply:

If you're hearing clicking it's most likely just the brake controller testing for connection to the brake magnet in the assemblies # 23-26-27 by sending a pulse and energizing the magnets, causing them to cling to the hub for a second. It's normal for certain brake controllers and wouldn't be a cause for worry.

If you notice the brakes starting to drag (temperature will also shoot up) then that would indicate the brake controller is sending a few volts back to the brakes causing them to try to activate, but at a low voltage can't fully activate. This is when you'd want to check for any shorts in the wiring, ensure you have a good ground, and take a look at the brake controller and replace it if necessary.

expert reply by: Kevin C