Dodgydave, Great idea to find a pic online. Thank you for the help! Really appreciate it!The best I can see is on Amazon here R36 last picture, looks like Brown, Black , Gold,
so that's 1 Ohm .
https://www.amazon.com/Icon-Health-Fitness-Inc-Nordictrack/dp/B07FYT6N5P
Thank you. How should I check those units? What should I look for?Q5 will be controlling the voltage to the motor, it maybe a thyristor, also check D2.
Q5 is IRFP250M and D2 is DSE130-06AUsing a Dvm on Diode test, what is Q5 number on it?
Q5 reads .002 both directions on D & S.Q5 is a N channel mosfet, you will get a reading across the D and S terminals one way only on Diode test , if it reads both ways then it's blown . The same for the diode it should read one way only,.
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Thanks. That's creative. I'll give it a try. Both my boards behave similar so I either have another issue on the treadmill causing issues or the old motor somehow burnt burnt something out on both boards before I changed out the motor.Did you try removing the load on the motor and see what happens, another indication to detect if the motor voltage ramps up or not, is to briefly place a incandesent lamp in place of the motor.
Max.
Yes, motor runs fine on a battery.Looks like maybe the mosfet?
Did you try the motor on a automotive battery?
I have never really seen a bad motor.
Max.
Any theories as to what could burn out a mofset on two boards? Along with replacing the mofset I need to figure out if it was the original motor or something else. Original motor appeared to run fine on battery just like the new one does.Yep, Q5 is duff...