Troubleshooting A Dexter DX Series Disc Brake Actuator That's Not Activating The Brake Assemblies

Updated 11/03/2025 | Published 12/31/2024

Question:

I have a EH 1600 actuator on my trailer and it has power to it and it’s working but the brakes aren’t coming on the caravan is only 2 years old so what should I look for Kind regards Marty

asked by: Marty P

Expert Reply:

Hey Marty,

If the Dexter DX Series Electric Over Hydraulic Brake Actuator for Disc Brakes - 1,600 psi # K71-651 has power and and you can hear it pushing fluid when the brake controller is activated then you have a leak or the brake pads are so worn down they are no longer providing resistance against the rotors. You'll need to check the following things:

- Trace the brake lines from the actuator back to each assembly looking for leaks
- Check the fluid level in the actuator and bleed the lines again
- Check the brake pads and while the wheel is off have someone activate the actuator to see if the caliper is pushing the pads together or if they're stuck.

How did you check if the actuator was working and what was the voltage coming to the actuator?

expert reply by: Kevin C

Kate F.

11/3/2025

Hey Marty, what ended up happening with your Dexter electric over hydraulic actuator after you checked for leaks and fluid level? Knowing what you found could really help others troubleshooting similar brake issues.