5
Brake Troubleshooting
Check for defective controller.
•
Check for corroded brake assembly.
•
Check for weak or broken brake shoe return spring.
•
Check for worn or damaged lever arm between
•
magnet and brake shoe.
Check for improper controller installation.
•
Check brake adjustment.
•
Check for worn brake shoes.
•
Check for contaminated brake linings.
•
Check for weak or broken brake shoe return springs.
•
Check for bent backing plate.
•
Check wheel bearing adjustment.
•
Check for worn or damaged wheel bearings.
•
Check for worn or damaged magnets.
•
Check for dead or weak 12-volt battery, on trailer.
•
Check all wiring and connections.
•
Check breakaway switch.
•
If only one brake is operating, check other magnets.
•
Check for defective circuit breaker.
•
Check for open or shorted circuit.
•
Check for properly wired system including a good
•
ground between towing vehicle and trailer.
Check brake adjustment.
•
Check for worn or defective magnet(s).
•
Check for a damaged or worn connector between
•
towing vehicle/trailer.
Check that controller is installed correctly and
•
functioning correctly.
Check for out-of-round brake drums.
•
Check for properly wired system, including a good
•
ground between towing vehicle and trailer
Check for defective magnet or wiring.
•
Check for loose/worn wheel bearings.
•
TROUBLESHOOTING GUIDE FOR ELECTRIC BRAKES
Dragging Brakes
Noisy Brakes
Inoperative
Breakaway
System
No Brakes
Intermittent or
Surging Brakes
