springboardz
Whoops - that'll leave a dent...
I've seen a number of posts on this forum asking and talking about various issues that they experience with the BLX ESC that is installed on a few different Arrma models. The intention of this thread is to gather those random posts into a singular thread to assist future readers with determining the potential problem that they are experiencing.
Fellow members, if you have had an issue with your ESC and have determined the solution, please add a detailed description of your problem, troubleshooting steps, and ultimate resolution. @WoodiE or @Unusual RC, if we get enough different use cases, we may want to make this a sticky.
Here is an overview of my personal experience that I had with ESC issues:
Model: Arrma Talion BLX 6S BLX
Age of model when problems started: <1 month / <2 hours' runtime
Type of driving: In snow, no bashing
Type of battery being used: LiPo 4S
Description of problem:
Initially, the Arrma Talion would stop in the middle of a run, the motor would stop and twitch for a very brief moment, the ESC would beep twice, then the motor would usually start working again. Over the next few runs within 24 hours from the initial issue, the problem occurred more and more frequently. Finally, the Talion simply stopped working. The blue LED would flash four times, pause, and then repeat the cycle (blue light is supposed to indicate low voltage). No motor twitch and no beeps. Note that during the whole process the radio and steering servo were working as expected.
Troubleshooting steps:
I had no idea that the motor was making "screeching" sounds, so I'm quite glad that I sent in both devices. Also, even in the middle of their busiest time, they were still able to turn around the warranty service in one week (excluding shipping time) - that's pretty incredible!
Tips for other users:
Fellow members, if you have had an issue with your ESC and have determined the solution, please add a detailed description of your problem, troubleshooting steps, and ultimate resolution. @WoodiE or @Unusual RC, if we get enough different use cases, we may want to make this a sticky.
Here is an overview of my personal experience that I had with ESC issues:
Model: Arrma Talion BLX 6S BLX
Age of model when problems started: <1 month / <2 hours' runtime
Type of driving: In snow, no bashing
Type of battery being used: LiPo 4S
Description of problem:
Initially, the Arrma Talion would stop in the middle of a run, the motor would stop and twitch for a very brief moment, the ESC would beep twice, then the motor would usually start working again. Over the next few runs within 24 hours from the initial issue, the problem occurred more and more frequently. Finally, the Talion simply stopped working. The blue LED would flash four times, pause, and then repeat the cycle (blue light is supposed to indicate low voltage). No motor twitch and no beeps. Note that during the whole process the radio and steering servo were working as expected.
Troubleshooting steps:
- Swapped out four different LiPo batteries
- Tested each LiPo with a voltage meter to ensure that they were charged
- Checked connections, especially the T connections
- Dried and cleaned all areas by the motor and ESC
- Tossed the Talion onto it's haunches from 5 feet up (this actually worked a few times when it was still occasionally working - apparently, the jolt was doing something)
- Let it sit overnight in a dry, warm space
- Got upset and threatened the Talion that if it didn't work right, I would leave it out in the blistering cold overnight (yeah, that didn't work)
- Post-troubleshooting - called Arrma Customer Support, explained the issue, and they requested that I detach and send both the ESC and motor for diagnosis and fill out their form to describe the issue again.
- I shipped both devices to Hobby Services (with a completed form) and it arrived there on January 4th, 2016
- I received a replacement ESC and motor on January 13th, 2016 with the following notes:
- ESC was found to have programming issues and has been replaced
- Motor was making screeching sounds and has been replaced
I had no idea that the motor was making "screeching" sounds, so I'm quite glad that I sent in both devices. Also, even in the middle of their busiest time, they were still able to turn around the warranty service in one week (excluding shipping time) - that's pretty incredible!
Tips for other users:
- Check the battery in the car/truck first - make sure that's not the problem
- Check the wires and connections from the battery to the ESC to the motor - make sure that they're secure
- Note if the ESC's blue light is flashing. If this is the case and you have validated your batteries and connection are not the issue, you may need to call Arrma Support.