Troubleshooting Voltage Drop with New Electric Brake Assemblies on Trailer
Question:
Chris R. So 10.4 volts is an ample amount of voltage the run the units on my trailer and are you saying its best to ground all four units separately instead of tying them all into one main ground? Thanks
asked by: Josh
Helpful Expert Reply:
Some voltage drop off as power travels to each brake assembly on the trailer can be normal (within 1-2 volts of drop), especially if you have a longer trailer . If you are testing the brake output wires right before the assemblies themselves and getting 10.4 volts then this probably isn't an issue. Also make sure when you're testing for voltage that you have the brake controller set to max power and you're using the manual override (not stepping on the brake pedal).
Something else that could contribute to a loss of power is a weak or bad ground. I recommend going to each of the brake assemblies to make sure its ground wire is securely attached to a clean, bare metal surface that's free of any corrosion or debris. It's usually a good idea to even sand down the area on the trailer frame where you attach the ground wire to ensure a good connection.
If you are still having issues please let me know and we can continue to troubleshoot.
Products Referenced in This Question
Product Page this Question was Asked From
Hopkins Engager Push-To-Test Trailer Breakaway Kit w/ Built-In Charger - Side Load - 7" Wire
- Trailer Breakaway Kit
- Kit with Charger
- Side Load
- Single-axle
- Tandem-axle
- LED Tester
- Hopkins
more information >
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Joshua H.
4/5/2019
Chris R. So 10.4 volts is an ample amount of voltage the run the units on my trailer and are you saying its best to ground all four units separately instead of tying them all into one main ground? Thanks