Kelsey Brake Controller Not Working with Manual Override on a 1997 Ford F-350

Updated 07/25/2014 | Published 07/24/2014

Question:

Have kesley controller when I apply brakes manually red light doesnt light up but when I put foot on brake it lights up. Also put test light on blue wire very dim. Turned knob on side of unit no brighter neither.

asked by: Ronnie A

Expert Reply:

It sounds like there is a problem with the manual override lever or the electronics associated with it on your brake controller. If your Kelsey controller is the type that has a load knob on one side and the leveler knob on the other side try making adjustments to the leveler knob. I have seen controllers do strange thing when the leveler was off.

If that doesn't work you can try to clean the contacts inside the controller by fully applying the manual override and then letting it snap back into place. Do this several times to clean the contacts. It that doesn't help and adjusting the gain higher doesn't help then you likely have a problem inside the controller and it will need to be replaced.

I have included a couple of links on testing and troubleshooting brake controllers for you as well.

expert reply by: Michael H