Notorious Motor Fan installed

[Matschik2023]

Hello, I just connected a fan for the electric motor to my controller. Is it normal that it doesn't start immediately after switching on? When it comes to the controller itself, it only switches on at some point (probably temperature controlled). I didn't connect it wrong, did I?

Regards Martin

 

[dure16]

It is not temperature controlled with this setup. Both of those fans should always run while the ESC is powered on, if they are operational and wired correctly.

 

[Matschik2023]

It is not temperature controlled with this setup. Both of those fans should always run while the ESC is powered on, if they are operational and wired correctly.

I plugged in the fan incorrectly. Now it's running, I connected it directly to the controller. The fan on the controller always starts later for me. I think it fits like that.

 

[icephase]

With 'controller' you mean the esc, right? That fan should come on as soon as you power on the car. If it doesn't, have it checked out and maybe replaced under warranty.

 

[Matschik2023]

With 'controller' you mean the esc, right? That fan should come on as soon as you power on the car. If it doesn't, have it checked out and maybe replaced under warranty.

I thought about it again, I now also believe that the controller is defective because the fan on the controller doesn't turn on. I have already contacted customer service. Thanks for the tip!

 

[SrC]

I plugged in the fan incorrectly. Now it's running, I connected it directly to the controller. The fan on the controller always starts later for me. I think it fits like that.

The motor fan Must always start when the ESC fan starts. It's on the same ESC BEC circuit. That motor's fan may be a Dud. The stocker motor fans suck, and usually don't last long anyway. Also, cheap fans tend to start slow when they are new and just turned on. With use they tend to run a bit faster as well. The cheaper fans don't have BB's, just brass bushings, so they need to break-in a bit when new.
The best cooling solution is tossing that Stock motor Heat Sink altogether and use a "Fan mount" instead. Air blowing directly at the motor. The motor's Alloy Can is already a heatsink by design. I do this, and my Temp Gun never lies. The motor runs cooler. Also good to have a temp gun, A necessary RC tool. Double fan mounts are also available. Using (2) 40mm fans blowing directly onto the motor is even better.
My spin. Been there.

 

[Matschik2023]

The motor fan Must always start when the ESC fan starts. It's on the same ESC BEC circuit. That motor's fan may be a Dud. The stocker motor fans suck, and usually don't last long anyway. Also, cheap fans tend to start slow when they are new and just turned on. With use they tend to run a bit faster as well. The cheaper fans don't have BB's, just brass bushings, so they need to break-in a bit when new.
The best cooling solution is tossing that Stock motor Heat Sink altogether and use a "Fan mount" instead. Air blowing directly at the motor. The motor's Alloy Can is already a heatsink by design. I do this, and my Temp Gun never lies. The motor runs cooler. Also good to have a temp gun, A necessary RC tool. Double fan mounts are also available. Using (2) 40mm fans blowing directly onto the motor is even better.
My spin. Been there.

So it's probably the case that the controller (fan) was defective from the start.
Many thanks for your support

 

[Matschik2023]

Forget everything I wrote. Everything works, the fan cable wasn't plugged in from the start and that's why the second fan motor didn't work either. Sorry for annoying you for nothing.

 

[SrC]

All good....
Enjoy.