Troubleshooting Trailer Brake Magnets that Have Voltage to Them But Arent Activating
Updated 04/24/2017 | Published 04/23/2017
Question:
we cut and separated each wheel magnet wire at backing plate. with good 12.9 volt battery directly connected to magnet, brakes do not engage on any of the 4 wheels. do not get a ohm or amp reading on any of the magnets when hooked to battery for testing. i have no way of pulling rims but it does not seem likely that all 4 magnets went bad at the same time. really need help thanks
asked by: Barry J
Expert Reply:
It has to be the ground then of the brake magnets. If they are all getting voltage and not applying the problem is the grounds. Make sure the magnets are connected to a clean portion of the trailer frame or you can run ground wires from each magnet back to the main ground of the trailer wiring harness. When the magnets are activating you should hear them click as they grab the drum and you'll also hear a low hum too.
Product Page this Question was Asked From
Replacement Trailer Brake Magnet for 12" Brake Assemblies
- Accessories and Parts
- Trailer Brakes
- Electric Drum Brakes
- Brake Magnets
- 12 x 2 Inch
- Redline
more information >
Continue Researching
- Search Results: 83001
- Search Results: 331tpsi001
- Search Results: brake magnets
- Shop: Redarc Tow-Pro Liberty Brake Controller w/ Universal Wiring Harness - Dash Knob - Proportional
- Shop: RV Propane Gas and Carbon Monoxide Detector - 12 Volt - 2 Wire - White
- Shop: Mounting Panel for Redarc Tow-Pro Trailer Brake Controller Control Knob
- Shop: Universal Wiring Harness for Redarc Tow-Pro Trailer Brake Controllers
- Shop: Universal Mounting Panel for Redarc Tow-Pro Trailer Brake Controller Control Knob
- Shop: Alpha Systems Superflex TPO RV Roof Membrane - White - 35' x 9-1/2'
- Shop: Optronics LED Trailer Clearance or Side Marker Light - Submersible - 6 Diodes - Red Lens - 12V
- Shop: Brake Controller
- Article: Trailer Wiring Diagrams
- Video: Lippert RV Entry Door Screen Defender Screen Protector Manufacturer Review
- Search Results: trailer brake controller
- Shop: Trailer Wiring
- Article: 30-Amp and 50-Amp RV Service: What's the Difference?
- Search Results: trailer hitch
- Video: Firestone Ride-Rite Air Bags with Easy Mount Compressor Feature Breakdown
- Search Results: brake controller
- Shop: Trailer Hitch
- Article: 5 Things to Know About Weight Distribution Hitches
- Video: Gen-Y Hitch Shock Absorbing 5th Wheel to Gooseneck Pin Box Comprehensive Review
- Search Results: trailer wiring
- Shop: Suspension Enhancement
- Article: What are the Common Types of Propane Fittings Used on RVs?
- Shop: Base Plate for Tow Bar
- Article: How to Winterize & De-Winterize Your RV (Simple Guide)
- Shop: Fifth Wheel Hitch
- Article: How to Measure for Trailer Hitch Drop
- Shop: Towing Mirrors
on Accessories and Parts
