Hi everyone,
I recently purchased a second hand treadmill from a local. I've ran into problems with the drive motor blowing the 15A fuse on the PCB when it starts up.
If I disconnect the motor leads from the board, the unit will be OK. I can start the treadmill, display screen works fine, the elevation motor runs smooth, no problems.
Once I connect those motor leads to the board, the fuse cooks.
I have re-soldered the positive blade connection to the board because it was quite loose, but that has not made a difference.
I turned the treadmill on with the motor leads disconnected and put a volt meter on the positive terminal... I get 190 volts to ground and around 350 volts from + to - on the board connections. The treadmill motor is rated at 90 volts and 15 amps.
I'm trying to ascertain my problem... bad motor or bad PCB? How can I diagnose exactly the cause of this fuse cooking?
Thanks!
I recently purchased a second hand treadmill from a local. I've ran into problems with the drive motor blowing the 15A fuse on the PCB when it starts up.
If I disconnect the motor leads from the board, the unit will be OK. I can start the treadmill, display screen works fine, the elevation motor runs smooth, no problems.
Once I connect those motor leads to the board, the fuse cooks.
I have re-soldered the positive blade connection to the board because it was quite loose, but that has not made a difference.
I turned the treadmill on with the motor leads disconnected and put a volt meter on the positive terminal... I get 190 volts to ground and around 350 volts from + to - on the board connections. The treadmill motor is rated at 90 volts and 15 amps.
I'm trying to ascertain my problem... bad motor or bad PCB? How can I diagnose exactly the cause of this fuse cooking?
Thanks!