Reverse stopped working Brushed motor

[7car7]

I have a truck that stopped going in reverse.

Any ideas?

The "brake" function still works.
I swapped in another motor (just hooked up the wires and held the motor), and that other motor also does not give reverse.

The ESC blinks red when applying reverse, but no action.

I checked the trim, and in one direction, the motor starts going forward of course, and turning it the other way, the red light will blink, and then turning the trim further, will come on solid.

The truck is an HPI Mini Trophy Desert Truck.
Stock ESC

 

[Rolex]

For starters, get out your manual and reprogram the ESC.

 

[7car7]

Manual mentions no reprogram. This is a brushed system. Maybe someone here has an idea how to do that?

 

[Non Crimen]

I have an idea, start by getting the manual and reprogramming the esc.

---------- Post added at 4:14 PM ---------- Previous post was at 4:08 PM ----------

What esc does it have? To reprogram it should only take you but a minute. I know that traxxas has a "race" mode on their ESCs that only allow forward and brake. Sounds similar to your problem.

 

[7car7]

ESC is HPI SC-15. The old kind. Not the latest waterproof one - that supposedly has re-program instructions according to others on other forums. Yet no one can produce those instructions.

Here's the HPI pdf manual for a truck that has the Water Proof ESC...
http://www.hpiracing.com/assets/manuals/pdf/10831.pdf

Here's the HPI pdf manual for my truck that has the older ESC...
Page 32 discusses the ESC.
http://www.hpiracing.com/assets/manuals/pdf/103035.pdf

 

[7car7]

I may have a solution. I'll find out this evening.

From another thread that I finally stumbled on....

Hold trigger with radio turned on and turn on ESC. Lights will flash. Go to neutral for maybe a second. Then go to full reverse for maybe a second. Return to neutral and it will make some beeps, lights will stop flashing, and mine at least was calibrated. This seems to be something that has to be done within a time limit, more so than it is reacting to the end points.

I think a family member may have turned this one on, and not being an RC person, may have had their finger on the trigger. We'll see....

 

[Rolex]

Blaming on a little brother?

 

[7car7]

Well, I thought I was blaming it on my nieces husband, but turns out my son is the one who turned it on first. And he knows not to hold the trigger.

Sadly, I could not get it to fix itself doing the throttle on then turn on deal. I found that if I tried holding the trigger, then neutral, it would put it into a mode that kept part throttle on in neutral, and full with throttle, and brake when pushed forward. I guess that's race mode?

Anyway, still no reverse. I'm beginning to think it may just be the ESC.

I did get a response from HPI finally, and they attached the user manual for the newer water proof version. SC-15WP. Unfortunately, it's completely different. That newer one has a mode button for programing, mine does not. The menus are then of course not compatible with mine. Hoping they can send something for the old one - my manual has no programing at all.

 

[jose.28]

Are you using the stock controller with this esc?

 

[7car7]

Yes. All it has is trim and servo reversing. No EPA.

 

[jose.28]

Ok. I have a hpi radio as well and i had a similar issue but i was using it on a traxxas esc.
Have you checked your end points?

---------- Post added at 11:58 AM ---------- Previous post was at 11:45 AM ----------

---------- Post added at 11:59 AM ---------- Previous post was at 11:58 AM ----------

Is this what your using?

 

[7car7]

I have this TX...
No end point adjustment. Just trim.

 

[jose.28]

If you have another tx/rx i would give that a try then.

 

[gottico2]

try tinkering with the throttle trim. My truck is the same exact one and I remember having that problem--Also check your esc--Mine tended to get packed with sand and dirt from running and it seemed to affect the operation

 

[Sixtysixdeuce]

Sadly, I could not get it to fix itself doing the throttle on then turn on deal. I found that if I tried holding the trigger, then neutral, it would put it into a mode that kept part throttle on in neutral, and full with throttle, and brake when pushed forward. I guess that's race mode?

No, that ain't right.

Not all ESCs calibrate the same way. Forward-neutral-reverse is the norm, but not a rule. Some are reverse first, others start in neutral.