Diagnosing no-resistance NordicTrack recumbent bike plus a cheap “fix”

Рет қаралды 18,219

Күн бұрын

On fancier exercise bikes the resistance is controlled electronically, and is a common failure point. I show how to diagnose the failure point and also a method to “hotwire” the resistance motor so that you can still change the resistance without replacing parts if the motor is fine and only the console is damaged.
The bike in the video is the NordicTrack GX 4.0 model, but this method is general enough to work with many Proform and NordicTrack bikes (I actually suspect they are all made in the same factory given how similar they look inside). No special bike tools are required, just standard screwdrivers and wrenches that most home owners should have.
See also • Directly controlling r... where I show how to build the circuit that allows changing the resistance with a switch instead of fumbling with wires and battery terminals.

Пікірлер: 18

@MrSnotBubbles Жыл бұрын

Wow! This actually worked for me. Thanks to you, we can continue to use our bike instead of trashing it.

@tomhanson2611 6 ай бұрын

The disassembly information was very useful, thank you. The motor on my stationary bike also worked fine (blue and yellow wires) when I tested it with a bench 5V DC power supply but the feedback potentiometer (red, black, and white wires) in the motor assembly had failed. I monitored the feedback potentiometer output (white wire to black or red wire) as the motor moved and the signal was erratic and intermittent. It was necessary to replace the motor assembly. In my case, part number 241949.

@xeostube 6 ай бұрын

It's conceivable that the potentiometer just needed to be cleaned, as what you describe sounds like a dirty wiper. Often can be hard to disassemble enough to clean AND still he able to put back together fully tho :-(

@tomhanson2611 5 ай бұрын

@xeostube I believe that too. A good cleaning may have resolved this but, as you probably know, this motor assembly was not made to be serviced. I would have to disassemble the little gear box to get the potentiometer out (a lot of gears). The newer models, the one I received, looks like that would be easier to do based on how the potentiometer is installed. The older one was attached with an internal collar nut and not so easy and probably a 50/50 chance of resolving it. I'm back to good operation with the new motor assembly. OBTW, the motor is more like $70 now with inflation.

@user-kc9ko3vt7y 6 ай бұрын

Thanks for the tip. I was able to easily tap into wires near computer console and added 3 v battery box. 1.50$ investment to fix.

@xeostube 4 ай бұрын

good point, you don't need to go as deep inside as I do here.

@BS-my2ky Жыл бұрын

Nice! So the voltage is 3V between the teal and blue? What is the ground black wire is for?

@xeostube Жыл бұрын

There's also a potentiometer in the assembly for sensing where the motor is, presumably it's use as part of that circuit.

@revent42 Жыл бұрын

Where do I plug in the power cord for my panel???

@xeostube Жыл бұрын

As you can see I don't actually have the panel so I don't really remember but I think it's at the bottom of the entire unit near the front

@revent42 Жыл бұрын

@@xeostube I tried to log on to some kind of website that wanted to chart me $70.00 for a one year subscription to give you advice on how to diagnose your unit. 🙄🙄🙄