Troubleshooting Roadmaster Even Brake System with Low Battery-Not Operational Message
Question:
My Evenbrake gives the Not Operational - Low Battery message in the remote unit with a towed vehicle battery voltage of 12.4. I started the vehicle and got the battery to read 14.7 volts, but I still get the low battery message. I checked all voltages going to the Evenbrake main unit, the transmitter and receiver and they are all above 12 volts. Do I have a bad unit?
asked by: Walt T
Expert Reply:
I can understand how this must be frustrating, but I don't believe that your Roadmaster Even Brake # RM-9400 has gone bad and I've got a few things you can check to make sure. I would start by making sure that the 12v socket (cigarette lighter) you're using is clean and providing you with a full 12v of power; you also may want to look behind it and make sure that there hasn't been a short that might have damaged the wiring.
I also recommend checking the transmitter and the line running directly to the vehicle battery and make sure that there is not a short on that wire and that the ground is firmly connected. I double checked with my tech contact over at Roadmaster to confirm this with them and he seemed to concur that this would be the best steps to check before going further.
If you check those items and everything checks out normally, just let me know and I can provide you a few other steps to check out. One other thing that he did mention was that some vehicles have power save feature, so if this is an issue that everything checks out at first and then the issue pops up after the fact, the vehicle could just be cutting power to the Even Brake and causing the issue.
Product Page this Question was Asked From
Roadmaster Even Brake Portable Flat Tow Brake System - Proportional
- Tow Bar Braking Systems
- Brake Systems
- Proportional System
- Recurring Set-Up
- Portable System
- Not Power Assist Brake Compatible
- Air Brakes
- Air Over Hydraulic Brakes
- Hydraulic Brakes
- Roadmaster
more information >
Featured Help Information
Instructions
Continue Researching
- Shop: Optronics LED Trailer Tail Light - Stop, Tail, Turn - Submersible - 21 Diodes - Round - Red Lens
- Shop: Vehicle Tow Bar Brake System
- Shop: Blue Ox Patriot Portable Flat Tow Brake System - Proportional
- Shop: Roadmaster Battery Charge Line Kit for Towed Vehicles
- Video: Optronics Trailer Lights - Tail Lights - STL55RB Review
- Shop: Conventional Ramp Door Spring for 8' Wide Enclosed Trailer - Dual Spring - 120-lb Capacity
- Shop: Low Profile LED Combination RV Tail Light - Stop, Tail, Turn - 6 Diodes - Round - Passenger Side
- Shop: Replacement Transmitter for Roadmaster Even Brake Braking Monitor - Serial Numbers Up to 27,496
- Video: Roadmaster Battery Charge Line Kit Review
- Q&A: Is A Battery Disconnect Switch Needed To Flat Tow A 2020 GMC 2500 HD?
- Search Results: flat tow kit
- Q&A: Can Brake Controller be Used for Braking on Vehicle Flat Towed
- Q&A: Even Brake Will Not Pass Self-Test and Shows "Not Opertaional, No Brake Switch Detected"
- Shop: BrakeBuddy Towed Vehicle Battery Charge Line Kit
- Video: Roadmaster Supplemental Braking Systems Quick Exhaust Valve Replacement Review
- Video: Roadmaster InvisiBrake Braking System Installation - 2021 Jeep Wrangler
- Shop: Brake Controller
- Video: Roadmaster Sterling All Terrain Tow Bar Installation - 2021 Jeep Cherokee
- Video: Roadmaster Tow Bar Installation - 2012 Jeep Wrangler
- Q&A: Why Does Vehicle Battery Have to Be Disconnected to Flat Tow
- Q&A: Troubleshooting A Blue Ox Avail Tow Bar With A Locked Up Arm
- Search Results: 44649
- Q&A: Wiring a Camper Shell Third Brake Light on a 2017 Chevrolet Silverado
- Article: Trailer Wiring Diagrams
- Video: Choosing the Right Trailer Wiring
- Shop: Trailer Hitch
- Shop: Trailer Wiring
- Search Results: 68149
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Q&A: 10k Dexter Replacement Hub for a 8-415