Sole F80 Treadmill (2016)

[sc122524]

I'm attempting to repair an older treadmill that I received as a gift. When trying to start the treadmill, it is able to power up successfully. But when pressing the start button, it starts counting down from 3 to 0, and it seems like it ever so slightly starts to try the motor before erroring out with an E7 error (Input power anomaly). I'm able to also run the calibration where it starts the motor for a brief second before shutting it off again, and reinitializes the LCD display, moves the incline motor back to its base, and then goes back to normal. (Still has the same startup error though).

I've tried testing the various circuits on the board, and from what I can tell, the components appear to be within their normal range. I believe that the yellowish stuff that is near some of the components is board glue, but I'm not 100% certain of that. The stuff itself appears to be solid. I have no idea how long the treadmill has been in this state though, as I just received it recently. I'm fairly handy with electronics, so any other components that could be tested to determine if they are faulty I could probably do. The new controller board is 250, so if its a 10 capacitor, I'd like to start with that approach as opposed to replacing everything for a cheap component.

 

[Delta Prime]

Can you take a close-up photo of that transistor on the heat sink,thank you.

 

[sc122524]

Here is the close-up.

 

[sc122524]

I'm also running into another issue unrelated to the motor controller board. For some reason, both the incline up / down and speed fast / slow buttons on the handles don't react when I press them. I've taken the button apart, and its pretty simple in that its only a rubber tactile button and a PCB with wire connections that alternate where I assume the press of the tactile switch should make a connection through the wires. For some reason both sets of buttons don't register as being pressed (I tested with a continuity tester on my multimeter). Would those types of buttons typically require some sort of electrical conducting mechanism / gel to give a better connection when the button is pressed? It seems odd that both buttons would suffer from the same issue unless it was old enough where any sort of conducting gel on the button has dried out.

 

[sc122524]

I used some electrical paint to fix the tactile switches, but still having trouble with the motor. I got what I thought was a replacement motor that had the same board, but it looks like it may be ever so slightly different. That one produced an e5 error when I connected it to the board. I imagine though with two boards, if I can find the darn component that is having the issue, I can likely replace it with a component from the other board.