So, I bought a new receiver that matches my Maytech remote because I thought the issue came from the receiver since it was the only non-new component left. I replaced the receiver, and the board worked normally for a week—seven sessions of about 35 minutes each. Then yesterday, I noticed the board wanted to move on its own. I placed it on the ground and saw that the propeller was spinning on its own again.
The problem came back as it was before replacing the receiver! I’m desperate because now I don’t know what to do anymore. I tried flashing the VESC firmware and reconfiguring everything from scratch, but the issue persists. When I turn off the remote, the motor stops spinning, but when I go into the PPM wizard (in VESC Tool), I can see the remote’s configuration bars moving erratically, sometimes spiking over 500%, and other times stabilizing.
What’s strange is that after a reconfiguration without setting it to the center position, everything seemed to work correctly, and the issue seemed resolved. I thought, great, left it like that, and charged the battery. After reconnecting everything post-charge, the problem returned worse than ever. When the spikes go above 500%, the remote doesn’t even drive the motor, and the motor doesn’t spin either.
I also noticed that when the board is turned off for a long time and I test it the next day, it works normally for a few minutes, but the problem comes back progressively. Initially, the propeller vibrates softly, then after a few minutes, it spins intermittently, then after more minutes, faster and less intermittently.
In short, it feels like there’s a ghost in my board that won’t let me enjoy it. I’m depressed because no one is helping me, and I’ve been troubleshooting for quite some time. I’ve spent more hours repairing this board than being on the water. In short, here I am, asking for help. If you have any ideas, I’m all ears, but I’m really out of ideas now.