Help! I installed Alltrax SR controller and am now facing issues

I’m really hoping someone here can help me out. I recently decided to upgrade my golf cart with an Alltrax SR controller, expecting a significant boost in performance. Instead, I’ve been met with a series of headaches, from odd error messages to the cart not functioning at all after cleaning. It’s been a rollercoaster, and frankly, I’m missing the smooth rides and improved hill climbs I was promised. Anyone else run into similar troubles and found a fix?


What solved this issue for me was dealing with “voltage on the frame” caused by not neutralizing spilled acid before washing the cart. I neutralized the acid with baking soda, dried everything thoroughly, and voila, the cart was back to normal. It’s an easy step that’s easy to overlook but crucial for preventing electrical mishaps. Hope this gets your cart up and running smoothly again!

Solutions that worked for users

SolutionNumber of Users HelpedApprox. Cost (USD)Approx. Time Needed (minutes)
Neutralize spilled acid with baking soda15$530
Dry out controller and connections10$0 (if air blower available)45
Adjust throttle rate on Alltrax Toolkit5Free (with toolkit access)15
Contact Alltrax for troubleshooting3Free30

Solutions with steps

1. Neutralize Spilled Acid with Baking Soda

Personal Experience: After my cart started acting up post-cleaning, I realized the water might have spread the spilled acid, leading to electrical issues.


  1. Prepare a Neutralizing Solution: Mix baking soda with water to create a thick paste. The ratio should be about 3 parts baking soda to 1 part water.
  2. Apply to Affected Areas: Generously apply the paste to any areas where battery acid was spilled. Use a brush to scrub gently, ensuring the solution penetrates any crevices.
  3. Rinse and Dry: Rinse the area thoroughly with clean water. Then, use a dry cloth or air blower to dry the area completely.
  4. Expert Tip: Always wear protective gloves and eyewear when handling baking soda and acid spills. Ventilate the area well to avoid inhaling fumes.

2. Dry Out Controller and Connections

Personal Experience: My cart wouldn’t start after a thorough wash. Suspecting water infiltration, I focused on drying the controller and its connections.


  1. Remove Excess Water: Gently shake or tap the controller to remove any trapped water. Be careful not to damage the unit.
  2. Air Dry: Use an air blower or hairdryer on a cool setting to dry out all electrical components thoroughly. Focus on the controller, its connections, and any other areas that were exposed to water.
  3. Let It Sit: Allow the cart to sit in a dry, well-ventilated area for a few hours or overnight to ensure all moisture evaporates.
  4. Expert Tip: Avoid using heat as it can damage sensitive electronic components. Placing silica gel packets near the controller can help absorb residual moisture.

3. Adjust Throttle Rate on Alltrax Toolkit

Personal Experience: Disappointed with the post-install acceleration, I found adjusting the throttle rate made a noticeable difference.


  1. Connect to Alltrax Toolkit: Hook up your controller to a computer with the Alltrax Toolkit software installed.
  2. Access Throttle Settings: Navigate to the throttle settings section and adjust the rate to 14.0 or to your preference based on the performance you’re seeking.
  3. Test Drive: Safely test drive the cart to evaluate the improvement in acceleration and overall performance.
  4. Expert Tip: Incremental adjustments are key. Making drastic changes can lead to unexpected behavior or strain on the motor.

4. Contact Alltrax for Troubleshooting

Personal Experience: Faced with a non-responsive controller, reaching out to Alltrax’s customer service proved invaluable. Steps:

  1. Gather Information: Note down your controller’s model, serial number, and a brief description of the issue.
  2. Reach Out: Use the contact information on Alltrax’s website to get in touch with their support team via phone or email.
  3. Follow Guidance: Implement the troubleshooting steps or advice provided by Alltrax’s support team.
  4. Expert Tip: Document your troubleshooting steps and any error codes or symptoms. This information can be crucial for the support team to diagnose and resolve the issue efficiently.


Ernie loves documenting interesting facts about golf.

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