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Re: Motor or controller whine????

 

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That is from the f/r contractor. Not from the controller or the motor right? As you said I will toggle the contractor back and forth from forward to reverse sometimes and that will usually make it stop. Never knew what really made the noise. Good to know thanks.



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-------- Original message --------
From: "Dave Brice dbrice3721@... [C-Car]" <C-Car@...>
Date: 4/15/19 8:35 PM (GMT-05:00)
To: C-Car@...
Subject: Re: [C-Car] Motor or controller whine????

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Every once in a while mine does that too. It's the sound of the contact burning a little. Most often mine will do it if it has been super humid out. My quick fix is to toggle forward neutral forward to allow the contacts to try and seat better. Always works. Even with new contacts it still does it once in a while.?

On Mon, Apr 15, 2019, 8:28 PM nicholasgee58 nicholasgee58@... [C-Car] <C-Car@...> wrote:
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I have had this happen alot in my car. It has a d&d motor 48v and an altrax axe controller. The wiring is all new in the whole car. It uses the stock forward reverse contractor. Sometimes when I hit the accelerator it will make a sound like a kazoo and the harder you press the louder it gets. I let off the accelerator and lightly get back on. This almost always stops this whine from continuing. It has been doing this for a? thousand miles or so. I am not experiencing and problems but I am not sure what it could be. The controller is 600a and I have a 400a slow blow fuse attached to it. Any ideas what could make this noise. It is not terribly loud but you can hear it about the volume of someone talking quietly.?

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