Troubleshooting


  1. Check for proper wiring of the actuator (see wiring diagram)
  2. Check for proper wire size (12 gauge wire is required)
  3. Check for proper ground (must be ground through the tow vehicle and to the trailer)
  4. Check to ensure unit is receiving power from the tow vehicle (black and blue wire from the actuator)
  5. Check for compatibility with the tow vehicle (see compatibility chart)
    • If HBA-CAM is required, ensure CAM is wired correctly
  6. If problem is not solved, conduct Battery Test (see Battery Test Procedures)
  7. If actuator passes Battery Test the problem is not in the actuator, if actuator fails Battery Test, contact the Technical Dept.
  1. Check for proper wiring of the actuator (see wiring diagram)
  2. Check for proper wire size (12 gauge wire is required)
  3. Check for proper ground (must be ground through the tow vehicle and to the trailer)
  4. Check to ensure unit is receiving power from the tow vehicle (black and blue wire from the actuator)
  5. Check for compatibility with the tow vehicle (see compatibility chart)
    • If HBA-CAM is required, ensure CAM is wired correctly
  6. Check Break-Away Battery System wiring. Blue brake controller wiring from the Hydrastar SHOULD NOT be wired in to the Break-Away Battery System.
  7. If problem is not solved, conduct Battery Test (see Battery Test Procedures)
  8. If actuator passes Battery Test the problem is not in the actuator, if actuator fails Battery Test, contact the Technical Dept.
  1. Check brake fluid level
  2. Re-bleed the trailer braking system (bleed Hydrastar first)
  3. Check for proper wiring of the actuator (see wiring diagram)
  4. Check for proper wire size (12 gauge wire is required)
  5. Check for proper ground (must be ground through the tow vehicle and to the trailer)
  6. Check for compatibility with the tow vehicle (see compatibility chart)
    • If HBA-CAM is required, ensure CAM is wired correctly
  7. If problem is not solved, conduct Battery Test (see Battery Test Procedures)
  8. If actuator passes Battery Test the problem is not in the actuator, if actuator fails Battery Test, contact the Technical Dept.
  1. Check brake fluid level
  2. Re-bleed the trailer braking system (bleed Hydrastar first)
  3. Check for proper wiring of the actuator (see wiring diagram)
  4. Check for proper wire size (12 gauge wire is required)
  5. Check for proper ground (must be ground through the tow vehicle and to the trailer)
  6. Check for compatibility with the tow vehicle (see compatibility chart)
    • If HBA-CAM is required, ensure CAM is wired correctly
  7. If problem is not solved, conduct Battery Test (see Battery Test Procedures)
  8. If actuator passes Battery Test the problem is not in the actuator, if actuator fails Battery Test, contact the Technical Dept.
  1. Check for proper charge on the battery
  2. Check for proper wiring of the Break-Away System
  3. Check to ensure wires are not corroded
  4. Check for proper function of the Break-Away Switch
  5. If still having issues contact Hydrastar Technical Dept

Battery Test

Steps Outcome
Attach BLACK wire to positive(+) terminal, attach WHITE wire to negative(-) terminal Hydrastar SHOULD NOT run
Attach BLACK wire and BLUE wire to positive(+) terminal, attach WHITE wire to negative(-) terminal Hydrastar SHOULD run

* Use a 12 Volt battery source, isolate the wires from the Hydrastar when conducting the BATTERY Test

Break-Away Test

Steps Outcome
Attach YELLOW wire to positive(+) terminal, attach WHITE wire to negative(-) terminal Hydrastar SHOULD run

Troubleshooting Video


Hydrastar Troubleshooting Video
Troubleshooting the Hydrastar line of hydraulic trailer brake actuators.
Duration: 3:58 min.